DUM-48/50H Indoor Integrated Cabinet
Power System
User Manual
Beijing Dynamic Power Co., Ltd. (DPC)
DUMC-48/50H Embedded Switching Power Supply System
Declaration
Beijing Dynamic Power Co., Ltd. (DPC)
No part of this document may in any form or by means (including electronic,
mechanical, micro-coping, photocopying, recording or otherwise) be extracted,
reproduced, translated or transmitted, without prior written permission from Beijing
Dynamic Power Co., Ltd.
All Rights Reserved.
Due to continuous update and improvement of products and technology, product
features and performance changes by technical updates are not included in this
manual. Reserve the right to change the parameters without prior notice.
DUMC-48/50H Embedded Switching Power Supply System
Safety Precautions:
Before starting the installation or operation, please read the operation instruction
and precautions in the instruction manual to avoid accidents. “Caution, Warning,
Danger” and other matters in product instruction manual do not mean that all
safety precautions shall be complied during the installation or operation but just as
the supplementation of safety precaution in various installations and operations.
Therefore, the personnel responsible for product installations and operations must
carry out various equipment installations or operations only after receiving
professional trainings as well as grasping the correct system operation methods
and various safety precautions.
When carrying out various installations or operations of DPC’s equipment, be sure
to comply with safety regulations and engineering design codes of relevant
industries, and strictly comply with relevant equipment precautions and special
safety instructions provided in the instruction manual.
Electrical Safety:
1. High Voltage:
During the operation of the power system, some parts have a high
voltage. Direct contact or indirect contact with these parts through
wet objects will bring a fatal danger.
The construction operation of AC power line may cause a short circuit
fire or electric shock accident. The bridge joint and alignment of AC
DANGER
cable must comply with relevant regulations and design specifications
when going through the area. The staff carrying out various high
voltage operations must have high voltage and AC qualifications and
other operating qualifications.
The installation of the equipment must comply with the relevant industry safety
specifications and the equipment engineering design specifications. The personnel
of equipment installation operation must have high voltage and AC operations and
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other operation qualifications.
During the operation, do not wear any watch, bracelet, ring or other conductive
accessory.
When there is any water stain, moisture or condensation in chassis, please turn off
the power immediately. When operating in wet conditions, strictly prevent water
or other conductive liquid from entering the equipment.
During the installation process, do not allow to operate the equipment or switch.
Be sure to hang an identification of Prohibit Operating.
2. Tool:
During various high voltage and AC operations, it is necessary to use
WARNING
special tools. Do not use any ordinary or homemade tool.
3. Short Circuit:
The positive and negative short circuit of power system and DC
power distribution, or the grounding short circuit of non-grounded
electrode (terminal) in operation is prohibited. The power supply
DANGER
equipment is a constant voltage DC power one. The short circuit will
cause a strong arc or equipment fire to endanger the safety of
personnel and equipment.
During DC living operation, be sure to strictly check the polarity of cable and
interface terminal.
During the operation, do not wear any watch, bracelet, ring or other conductive
accessory.
Be sure to use insulated tools in operation.
During any charged operation, be sure to pay attention to the effect of operation
space on live working. When necessary, set insulating protection measures in the
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operating area to avoid any short circuit risk in tool clamping or shedding.
4. Thunderstorm:
Do not carry out any high voltage or AC operation in thunderstorm
DANGER
weather.
In a thunderstorm, there will be a strong magnetic field in the atmosphere. In
order to avoid any damage of lightning to the equipment, be sure to guarantee a
good grounding of the equipment.
5. Static Electricity:
Static electricity produced from human body can damage static
sensitive components on circuit board such as large-scaled integrated
circuit (IC) and so on. Before contacting equipment, circuit board, IC
NOTICE
chip or others, be sure to wear an antistatic wrist strap and make the
other terminal of anti-static wrist strap to be grounded well.
6. Battery
Before battery operations, be sure to read the battery instruction
manual carefully. During the operation, comply with prescribed
DANGER
safety precautions and proper battery connection methods.
A battery has the very high power energy. Non-standard operation will cause a
serious danger. In operation, be sure to strictly comply with safety precautions
specified in battery operation. Be sure to pay attention to the impact of operation
space on charged operation. Take precautions to prevent any short circuit of
battery.
During the operation, do not wear any watch, bracelet, ring or other conductive
accessory.
Be sure to use special insulated tools in operation.
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During the operation, be sure to take protection measures. Use protective glasses,
rubber gloves, rubber boots, rubber apron, and so on.
Others:
7. Sharp Object:
When handling equipment with hands or dismantling equipment
packaging boxes, wear protective gloves to prevent from being cut by
WARNING sharp object.
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Contents
1. SUMMARY .................................................................................................................................... 3
1.1. PRODUCT FEATURES ........................................................................................................................... 3
1.2 MAIN APPLICATION AND SCOPE ............................................................................................................. 3
1.3 VARIETIES AND SPECIFICATIONS .............................................................................................................. 3
1.4. CONDITIONS OF OPERATING ENVIRONMENT ............................................................................................ 4
1.5 OPERATING CONDITIONS ...................................................................................................................... 4
1.6 IMPACT ON ENVIRONMENT AND ENERGY ................................................................................................. 5
1.7 SAFETY ............................................................................................................................................. 5
1.8 EXECUTIVE STANDARD.......................................................................................................................... 5
2. STRUCTURAL CHARACTERISTICS AND OPERATING PRINCIPLE ........................................................ 7
2.1 OVERALL STRUCTURE........................................................................................................................... 7
2.2 OPERATING PRINCIPLE ......................................................................................................................... 7
2.3 STRUCTURE, FUNCTION AND OPERATING PRINCIPLE OF MAIN COMPONENTS.................................................. 8
2.4 BRIEF INTRODUCTION OF SYSTEM BOARD INTERFACE ............................................................................... 13
3. TECHNICAL CHARACTERISTICS ..................................................................................................... 16
3.1 MAIN PERFORMANCE INDICATORS ....................................................................................................... 16
3.2 MAIN CONFIGURATION PARAMETERS .................................................................................................... 16
4. DIMENSION ................................................................................................................................ 17
4.1 OUTLINE AND INSTALLATION DIMENSION ............................................................................................... 17
5. INSTALLATION AND COMMISSIONING ......................................................................................... 17
5.1 EQUIPMENT FOUNDATION, INSTALLATION CONDITIONS AND TECHNICAL INSTALLATION REQUIREMENTS ............. 17
5.2 INSTALLATION PROCEDURES, METHODS AND PRECAUTIONS ....................................................................... 18
5.3 COMMISSIONING PROCEDURES, METHODS AND PRECAUTIONS ............................................... 21
5.4 ACCEPTANCE TEST ITEM, METHODS AND CRITERIA AFTER INSTALLATION AND COMMISSIONING ........................ 22
5.5 PREPARATION BEFORE COMMISSIONING, COMMISSIONING STARTUP AND COMMISSIONING ............................ 22
6. USAGE AND OPERATION ............................................................................................................. 25
6.1 PREPARATION AND INSPECTION BEFORE USING ....................................................................................... 25
6.2 OPERATING PROCEDURE AND METHOD FOR STARTUP AND OPERATION ....................................................... 25
6.3 MONITORING AND RECORDING IN OPERATION........................................................................................ 35
6.4 SHUTDOWN PROCEDURE, METHOD AND PRECAUTION ............................................................................. 36
7. FAULT ANALYSIS AND TROUBLESHOOTING .................................................................................. 36
7.1 ALARM INSTRUCTION AND TREATMENT ................................................................................................. 36
7.2 ALARM AND COUNTERMEASURE INFLUENCING SYSTEM OUTPUT ................................................................ 36
7.3 ALARM AND COUNTERMEASURE NOT INFLUENCING SYSTEM OUTPUT .......................................................... 37
8. SAFETY PROTECTION DEVICE AND ACCIDENT TREATMENT .......................................................... 39
8.1 DESCRIPTION AND MAINTENANCE OF SURGE PROTECTION DEVICE (SPD) .................................................... 39
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9. MAINTENANCE AND REPAIR ....................................................................................................... 39
9.1 ROUTINE MAINTENANCE .................................................................................................................... 39
9.2 MAINTENANCE AND REPAIR IN OPERATION ............................................................................................ 40
10. PACKAGING, TRANSPORTATION AND STORAGE ......................................................................... 41
10.1 PACKAGING.................................................................................................................................... 41
10.2 PRECAUTION FOR HOISTING AND TRANSPORTATION ............................................................................... 41
10.3 STORAGE CONDITION, STORAGE PERIOD AND PRECAUTION ..................................................................... 41
11. OTHERS ..................................................................................................................................... 41
11.1 WARRANTY, AFTER-SALES SERVICE MATTERS AND CONTACT METHOD ...................................................... 41
11.2. OTHER MATTERS ........................................................................................................................... 42
12. ATTACHED TABLE ....................................................................................................................... 42
12.1 PARAMETER SETTING INSTRUCTION .................................................................................................... 42
12.2 SYSTEM FAULT DESCRIPTION ............................................................................................................. 44
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1. Summary
1.1. Product Features
DUMC-48/50H embedded high-frequency switching power supply system is a
high-tech product researched, developed, designed and manufactured by Beijing
Dynamic Power Co., Ltd. (DPC) through collecting high-frequency switching power
supply research and development experience for many years as well as combining
the domestic and foreign power supply situations and the operation requirements of
high frequency switching power supply system in accordance with industrial
standards of Ministry of Industry and Information Technology of the People’s
Republic of China, China Tower and others.
DUMC-48/50H embedded high frequency switching power supply system is modular
in design with an embedded structure. It is composed of controller, rectifier, AC
power distribution unit, DC power distribution unit, power detection unit and other
components.
DUMC-48/50H embedded high frequency switching power supply system is
equipped with DKD51 controller to achieve system energy detection, automatic test,
automatic diagnosis, and automatic control as well as achieving remote system
communication, telemetry, remote control and other functions.
DUMC-48/50H embedded high frequency switching power supply system is
equipped with DZY-48/50H I switching rectifier.
The output capacity of DUMC-48/50H embedded high frequency switching power
supply system may be divided into 200A (shared) and 300A (shared), which can be
adjusted according to the actual requirements.
1.2 Main Application and Scope
DUMC-48/50H embedded high frequency switching power supply system is suitable
for tower, telecommunication, mobile, transmission, and access network as well as
private network fields such as water conservancy and power, military, public security,
railway, bank, computer center and other places with medium and high power DC
power supply systems.
1.3 Varieties and Specifications
For product models and specifications, see Table 1-1 (300A) .
Table 1-1 Product Model and Specification (300A)
Parameter
Rated DC output voltage (V)
Rated DC output current (A)
Dimension (W×D×H, mm)
DUMC-48/50H
-48V
Final 300A (50A×6), which can be adjusted according
to the requirements
482×370×265 (mm)
1.4 Explanation of the model and meaning
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D U MC Design form
Rated Output current
Rated Output voltage
Embedded high frequency switch
关
Combined Power System
Telecom Power Equipment
1.4. Conditions of Operating Environment
① Temperature Range
Operating ambient temperature: -25～+45℃;
Storage ambient temperature: -45～+70℃;
② Humidity Range
Relative operating humidity: ≤90% (40±2℃) (no condensation);
Relative storage humidity: ≤95% (40±2℃) (no condensation);
③ Atmospheric Pressure Requirements
Atmospheric pressure (altitude): 70～106kPa (altitude: 0～3000m)
Note: under the environmental conditions that the altitude is more than 3,000m, the
system shall be used with derating. Once the altitude is increased by 200m, the
operating ambient temperature will be reduced by 1℃.
④ Vibration, Impact and Sunscreen Performance Requirements
Vibration: the system can withstand a sine wave vibration that the frequency is
(10~55) Hz and the amplitude is 0.35mm.
Impact: the rectifier module can withstand the peak acceleration that is 150m/s2,
and the duration is 11ms.
Sun: it has been taken with sunscreen insulation measures to withstand 1120W/M2
level of solar radiation.
There should not be any serious dust, explosive dangerous medium, harmful gas
corroding metal and damaging the insulation, conductive particles, serious mold, or
strong electromagnetic interference.
1.5 Operating Conditions
AC input voltage: The system is equipped with a single-phase three-wire input；
(200A shared) or three-phase five-wire input (300A shared). AC input will carry out a
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rated current output within the range of 304~475Vac (phase voltage 176~275Vac),
and derating output within the range of 156~304Vac (phase voltage 90~176Vac).
AC input frequency: 45~55Hz.
1.6 Impact on Environment and Energy
System cooling mode: air-cooled;
System audio noise: 60dB;
System conduction disturbance: the conduction disturbance limit shall meet the
requirements in Article 5.1 of YD/T983.
System radiation disturbance: the radiation disturbance limit shall meet the
requirements in Article 5.2 of YD/T983.
1.7 Safety
1.7.1 Insulation Resistance
When not connected with surge protective device (SPD), rectifier, controller and
detecting board:
When the ambient temperature is 15～35℃ and the test voltage is DC 500V, the
insulation resistance of AC and DC parts to ground as well as AC part to DC shall meet
the following requirements: The relative humidity is no more than 65%, the insulation
resistance shall not be less than 5MW, the relative humidity is higher than 65% but no
more than 90%, and the insulation resistance shall not be less than 2MW.
1.7.2 Dielectric Strength
① AC circuit to ground and AC circuit to DC circuit shall be able to withstand a
sinusoidal AC voltage (the frequency is 50Hz, and the effective value is 1500V) or a
DC voltage (the equivalent peak value is 2121V) for 1min without breakdown or
flashover.
② DC output to chassis shall be able to withstand a sinusoidal AC voltage (the
frequency is 50Hz, and the effective value is 3000V) or a DC voltage (the equivalent
peak value is 4242V) for 1min without breakdown or flashover.
③ Grounding performance
The grounding resistance between chassis and grounding parts shall be less than
0.1Ω.
1.7.3 System Contact Current
The machine is equipped with a large contact current. It must be grounded before
the power supply is switched on.
1.8 Executive Standard
YD/T 1058-2007
High-Frequency Switch-mode Power Supply for
Communications
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YD/T 731-2008
High Frequency Switch-Mode Rectifier for Telecommunications
YD/T 282-2000
General Reliability Test Method for Communication Equipment
YD/T 944-1998
Technical Specification and Testing Methods for Surge
Protective of Power Supply for Communications
YDT 585-2010
Distribution Equipment for Telecommunications
YD/T 983-1998
Limits and Methods of Measurement of Electromagnetic
Compatibility for Telecommunication Power Supply Equipment
YD/T 1051-2000
General Requirements of Power Supply System for
Telecommunication Stations/Sites
YDT 1537-2006
General Requirements for Telecommunications System Outdoor
Cabinets
GB 9254-1998
Information Technology Equipment – Radio Disturbance
Characteristics – Limits and Methods of Measurement
GB 3873-1983
General Specifications for Products Packaging of
Communication Equipment
YD/T 5040-2005
Code for Design of Telecommunication Power Supply
Equipment Installation
YD 5083-2005
Specification for Seismic Test of Telecommunications
Equipment
YD 5096-2005
Specification for Seismic Test of Power Supply Equipment for
Telecommunications
QZTT 1007-2014
Summary for New Facility Standards of China Tower
Corporation
QZTT ****-2015
Monitoring Specification for Embedded High Frequency
Switching Power Supply System (for trial implementation)
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2. Structural Characteristics and Operating Principle
2.1 Overall Structure
Indoor Integrated Cabinet power supply system is a compact structure. It is integrated with
inserting box set AC distribution, DC power distribution, rectifier module, monitoring module,
power detection unit and other parts. Each part shall be a modular structure. Both incoming and
outgoing lines can be selected flexibly. Battery compartment is in the bottom of the Cabinet, which
can contain six groups 100AH Lithium battery.
For the schematic diagram of DUMC-48/50H embedded high frequency switching power supply
system, see Figure 2-1.
Figure 2-1 Schematic Diagram of DUMC-48/50H System (300A)
2.2 Operating Principle
Indoor Integrated Cabinet power supply system is equipped with AC dual-way input in a form of
single phase three-wire or three-phase five-wire system (the standard configuration is a manual
conversion and can also be selected as automatic conversion). It can be selected as AC single-way
input according to the actual requirements. In model selection, the detection of AC input current
can be achieved through current transformer and AC current detection board.
The Mains AC input can supply the power for rectifiers in the system through AC input circuit
breaker. AC can become a stable DC through rectifier rectification, filtration, voltage regulation and
other links. All rectifiers output in parallel to the positive and negative rows of the system, and will
then be configured according to the customer switch-out requirements and the shunt quantity.
The system can be connected with 1~6 groups of battery. The battery pack can output with
rectifiers in parallel through battery fuse (or circuit breaker), shunt (detecting the battery current)
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and DC contactor (achieving the switch-out), and the DC power distribution unit shall supply the
power for customer DC loads. The standard configuration system can only detect the current of
two groups of battery configured with two shunts. It can also detect the current of four groups
battery configured with four shunts according to customer special requirements.
Through electric energy detection board and shunts, the system can achieve the electric energy
detection functions for different customers (single customer or four customers), and upload to
remote monitoring center through controllers. All including AC power distribution state, rectifier
state, battery state, DC shunt state, customer power consumption capacity can be detected or
controlled by controllers. A controller is equipped with one external RS232/485 communication
interface and reserved with two internal 485 communication interfaces. It can be connected with
the monitoring center through external RS232/485 communication interface and constitute a
centralized monitoring system.
After AC input is cut off, rectifiers are shut down, and the battery pack will supply the power for
loads. When the voltage of battery is less than the primary setting switch-off protection voltage or
more than the setting battery backup operation time, the controller sends out a switch-off
command and the normally closed DC contactor KM1 acts (breaking) to switch off the power
supply of primary load circuit. When the battery voltage is lower than the secondary setting
switch-out protection voltage, the controller sends a switch-out instruction and the normally
closed DC contactor KM2 acts (breaking) to switch off the power supply of secondary load circuit.
The controller can control the switch-out of each customer respectively.
When AC input restores to supply the power, rectifiers will restart the operations. When the
system DC output voltage is increased gradually and the setting switch-out voltage difference is
more than 5V, the controller sends a switch-on instruction. DC contactor is pulled in, and the
system supplies the power for loads and charges for the battery pack at the same time. If AC
power outage time is more than the effective AC power outage time (1~10 minutes can be set).
After AC input restores to supply the power, the system will be transferred automatically into a
Equalized charging state.
After DC output shunts fuse or circuit breaker is broken, the controller will send out an alarm signal
of Main Circuit Shunt. The system can calculate the power consumption capacity of each user and
the power consumption rate and upload to the controller by detecting the output voltage and
current of each customer.
The system has a battery temperature compensation function. While the battery temperature is
increased or decreased, the system output voltage will be decreased or increased accordingly. The
maximum decreased or increased system output voltage is 1V.
2.3 Structure, Function and Operating Principle of Main Components
2.3.1 DKD51 Type of Controller
DUMC-48/50H embedded high frequency switching power supply system is equipped with DKD51
type of controller. Its schematic outline diagram is shown in Figure 2-3. There are three indicators
including red, yellow and green lights at the top of controller panel LCD screen as well as four
buttons on the right of LCD screen.
For the function description of DKD51 type of controller indicator, see Table 2-1. For the function
description of button, see Table 2-2.
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Figure 2-3 Schematic Diagram of Outline of DKD51 Type Controller (front view)
Table 2-1 Indicator Description
Identification
Indicating
content
Serious
fault
Indicator
light
General
fault
Indicator
light
Operating
light
Color
Description
Red
When there is any serious fault, it flashes on for 1s and off for
1s. Serious faults include AC power cut, DC over or under
voltage, fuse fault, module fault, DC shunt fault, and
switch-out fault.
Yellow
When there is any general fault, it flashes on for 1s and off
for 1s. All faults except serious ones are general ones.
Green
1. When the system is operating normally, the operating light
is ON.
2. When there is any secondary system switch-out fault, the
operating light is OFF.
Table 2-2 Key Function Description
Identification
Name
Description
↑
Up
When a value is modified, it is an Increased key. For other states, it is
an Up selection key.
Down
When a value is modified, it is a Decreased key. For other states, it is a
Down selection key.
Enter
Enter the next level of menu or enter the state of numerical
modification, or confirm the value storage.
Exit
Back to the previous level of menu, or give up the numerical
modification.
↓
2.3.2 DZY-48/50HI Type of Rectifier
DUMC-48/50H embedded high frequency switching power supply system is equipped with
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DZY-48/50H I switching rectifier.
① Conditions of Operating Environment
Operating temperature: -40～55℃.
Storage temperature: -40～70℃;
Relative operating humidity: ≤90% (40±2℃) (no condensation);
Relative storage humidity: ≤95% (40±2℃) (no condensation);
Atmospheric pressure: 70～106kPa
② Safety
① Insulation resistance: Under the condition of normal atmospheric pressure, the relative
humidity is 90%. When the test voltage is DC 500V, the insulation resistance of AC and DC sections
of main rectifier circuit to ground as well as AC section to DC section shall not be less than 2MΩ.
② Dielectric Strength
a. AC circuit to ground and AC circuit to DC circuit can withstand 50Hz and 1500V AC voltage for
1min without any breakdown or flashover. The leakage current is no more than 30mA.
b. DC circuit to ground can withstand 50Hz and 500V AC voltage for 1min without any breakdown
or flashover. The leakage current is no more than 30mA.
c. AC circuit to DC circuit can withstand 50Hz and 3000V AC voltage for 1min without any
breakdown or flashover. The leakage current is no more than 30mA.
③ Other protection functions:
a. Short circuit protection function: When the DC output current of rectifier is more than 110% of
rated output current, carry out the short circuit protection to reduce the output voltage and limit
the output. When the fault is eliminated, it can restore the normal operation automatically.
b. Radiator over-temperature protection: When the temperature of radiator is in the range of
110℃±10℃, carry out an over-temperature shutdown protection for rectifier. When the fault is
eliminated, it can restore the normal operation automatically.
③ Main Technical Parameters
For main technical parameters of DZY-48/50H I switch rectifier, see Table 2-3.
Table 2-3 Technical Parameters of DZY-48/50H I Rectifier
Item
AC power supply
Inrush Current
Start voltage
AC input voltage range
DZY-48/50HI
Single phase 220V AC
≤28A
≤95V AC
186～ 285V AC
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AC under-voltage protection
value
＜ 176±10Vac (yellow light)
Shutdown: ＜70±10V AC
AC over-voltage protection
value
DC over-voltage protection
value
Nominal DC output voltage
DC output voltage range
Shutdown (red light): ＞
300±10V AC
Rated DC output current
50A
DC max output current
52.5~55A
Voltage stabilizing precision
Voltage regulation factor
Current regulation factor
≤±0.6%
≤±0.1%
≤±0.5%
Deviation of current equalize
≤±5%
Noise voltage
Dimension (W×H×D, mm)
Backlash of recovery point
shall not be less than 5V AC
Recovery switch on: ＜
290±10V AC
59.5±1.5Vdc
-48V DC
40～ 58V DC
AC input voltage range: 186～
285Vac
AC input voltage range: 186～
285Vac
Within the range of 50%~100%
rated current
Telephone balance
noise voltage
Peak-to-peak noise
voltage
Wide band noise
voltage
Discrete noise
voltage
Audible noise:
Efficiency
Power factor
Weight
Recovery point: 185±10V AC
≤2.0mV
300～3400Hz
≤200mV
0～20MHz
≤50mV
≤20mV
≤5mV
≤3mV
≤2mV
≤1mV
3.4～150KHz
0.15～30MHz
3.4～150kHz
150～200kHz
200～500kHz
0.5～30MHz
≤55dB
≥96%
≥0.99
2.5Kg
85×132.5×311.5mm (maximum
dimension)
④ Operating Principle
DZY-48/50HI switch rectifier is composed mainly of input filter circuit, slow start circuit, PFC active
power factor correction circuit, PWM high frequency switching DC-DC converter circuit, detection
control and state detection, intelligent communication interface, output rectifier filter circuit and
others.
All DZY-48/50H I switch rectifiers have AC input over-voltage, AC input under-voltage, DC output
over-voltage, DC output current limit, short circuit protection, radiator over-temperature shutdown,
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and other protection functions.
Figure 2-4 is the basic operating principle diagram of DZY-48/50H I switch rectifier.
Figure 2-4 Basic Operating Principle Diagram of DZY-48/50HI Rectifier
⑤ Rectifier Outline
For the schematic outline diagram of front and back panel of DZY-48/50 I switch rectifier, see
Figure 2-5.
Signal lamp on front panel of DZY-48/50H I switch rectifier:
Green light (OK): Normal
Yellow light (ALM): Alarm
Red light (FLT): Fault
Note: For any Alarm and Fault signal lights:
a. When the signal light of yellow Alarm or red Fault is ON, all except for communication fault shall
be treated as fault.
b. When there is not any communication between rectifier and controller, the yellow Alarm signal
light of the rectifier is ON, and it will not be treated as fault.
Figure 2-5 Schematic Outline Diagram of Front Panel of DZY-48/50H I Rectifier
2.3.3 AC Power Distribution
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For the function description of AC power distribution, see Table 2-6 (300A).
Table 2-6 (300A) AC Power Distribution Description
Input
Interface
Corresponding Function
AC input
circuit
breaker
63A/3P circuit breaker for input of
1-path AC power supply
AC surge
protective
device
Class C three-phase surge protective
device (SPD) (nominal 20kA, maximum
40kA) for AC mains power input
protection
Ground strap
Access the chassis ground terminal to
the cabinet ground strap
Remarks
It can be configured with brand and
input mode according to the user
requirements. The default is a
single-way mains input.
Note: The standard system configuration form is a dual-way mains input. AC input form (single-way,
dual-way manual conversion or automatic conversion) can be selected according to the
requirements. AC output shunt, AC socket and other requirements shall be configured according to
the user’s actual requirements.
2.3.4 DC Power Distribution
For function descriptions of DC power distribution section, see Table 2-6 (the configuration of 300A
is same as in common).
Table 2-6 (200A and 300A) DC Power Distribution Description
Output
Interface
Switch-out
Category
Configuration
LLVD
125A×2 (circuit
breaker)
Customer
BLVD
125A×2
breaker)
(circuit
Battery
125A×4-6 (circuit
MCB
protection
breaker)
2.4 Brief Introduction of System Board Interface
Corresponding
Function
Power supply for
Loads of Customer
For battery
protection
Remarks
Shunt type and
breaker capacity
can be adjusted
according to the
user
requirements. The
circuit breaker
can be defaulted
as a single pole
type
Adjust according
to requirements
The system plate interface mainly includes DKD51 gold finger interface, pinboard, power PCB gold
finger, LVD PCB gold finger, shunt PCB gold finger, dry contact PCB and other components. They are
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introduced one by one as follows.
2.4.1 DKD51 Gold finger
Figure 2-8 Schematic Diagram of DKD51 Gold finger
2.4.2 Pinboard
Figure 2-9 Schematic Diagram of Adapter Plate
2.4.3 Power PCB gold finger
Figure 2-10 Schematic Diagram of Power Board
2.4.4 LVD PCB gold finger
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Figure 2-11 Schematic Diagram of Switch-out Board
2.4.5 Shunt PCB gold finger
Figure 2-12 Schematic Diagram of Shunt Plate
2.4.6 Dry Contact PCB
Figure 2-13 Schematic Diagram of Dry Contact Plate
2.4.7 Definition of 485 Communication Interface
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Figure 2-14 Definition of 485 Communication Interface
3. Technical Characteristics
3.1 Main Performance Indicators
3.1.1 Output
(1) Rated voltage: -48V;
Regulated voltage operating range: - (43.2~57.6 rated system load);
Regulated voltage precision: not more than ±1% of DC output voltage setting value.
(2) Deviation of equalize current: When the output current of switch rectifier is within the range of
50%~100% of rated current, the mean load current imbalance shall not be more than ±5% of rated
current.
(3) Efficiency: ≥96%;
Power factor ≥0.99;
Acoustic noise: ≤60dB.
3.1.2 Noise Voltage
(1) Telephone balance noise voltage: ≤2.0mV;
(2) Peak-to-peak noise voltage: ≤200mV;
3.1.3 Voltage Drop of Power Distribution
Voltage drop of power distribution: ≤500mV;
3.2 Main Configuration Parameters
3.2.1 Control Unit
Controller: DKD51, one set;
3.2.2 Rectifier Unit
(1) Rectifier: DZY-48/50H I, the number is ≤6 (for 300A). But the user can adjust it according to
the requirements.
(2) Rated AC input of rectifier: AC220V/13A;
(3) Rated DC output of rectifier: DC48V/50A;
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3.2.3 AC Power Distribution Unit
(1) AC input: MCB 63A/3P, 1-path manual (300A); They can be adjusted according to the actual
requirements.
(2) AC output: None. It can be adjusted and configured according to the user requirements.
3.2.4 DC Power Distribution Unit
(1) Battery access unit:
125A circuit breaker, 4-6paths; select the specification and quantity of circuit breaker, fuse, or
shunt according to the user requirements.
(2) Switch-out protection:
It is configured with one 200A one 100A normally open DC contactor They can be selected and
configured according to the specific requirements.
(3) DC output:
Specific configurations are shown as follows:
Customer : primary switch-down 125A×2(equipment cabinet), battery switch-out
125A×2(equipment cabinet) (circuit breaker).
Note: it can be implemented with shunt adjustment or definition according to the customer’s
actual requirements.
4. Dimension
4.1 Outline and Installation Dimension
4.1.1 Dimension
Dimension (L×W×H):
Indoor Integrated Cabinet Power System: 2000mm×600mm×600mm;
5. Installation and Commissioning
5.1 Equipment Foundation, Installation Conditions and Technical Installation Requirements
5.1.1 Room Environment Requirements
All including room and related civil works shall be completed, and interior walls shall be dried fully.
The height and width of main room door shall not impede the handling of equipment.
The room floor shall be flat and smooth. In the room laid with anti-static activity floor, floor blocks
shall be laid tightly and solidly. Floor pillars shall be grounded well, and grounding resistance and
anti-electrostatic measures shall meet the requirements. Ground wires shall be constructed
according to the design requirements. Air conditioning equipment in room shall be installed
completely with good performance, and room corridors shall be kept clean and clear.
Room temperature and humidity requirements are shown as follows: The temperature is
-5℃～45℃ and recommended as 15℃～25℃.
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The humidity is 20%～90% and recommended as 40%～60%.
For other specific requirements, see Chinese Telecommunications Industry Standard Technical
Specifications for Installation Engineering Construction and Acceptance of Communication Power
Supply Equipment.
5.1.2 Safety Inspection
(1) Room must be equipped with applicable and effective firefighting equipment. Any equipped
with alarm devices shall have good performances.
(2) Different AC power switches and sockets in room shall have obvious signs.
(3) Do not store any flammable, explosive, radioactive or dangerous goods in room.
(4) Reserved floor holes shall be equipped with safety cover plates.
5.2 Installation Procedures, Methods and Precautions
5.2.1 Installation Procedures
The operating process of installation, commissioning, acceptance and starting are recommended
as follows:
Project preparation → Unpacking inspection → Equipment installation → Overall commissioning →
Initial inspection and testing → Equipment open-up → Engineering acceptance.
5.2.2 Unpacking Inspection
(1) Transport
During the transport process, power equipment shall have a good packaging as well as waterproof
and anti-vibration signs. When transporting equipment to the site for installation, prevent any
rough handling, and avoid any sun or rain.
The dimension of packing box in DUMC-48/50H embedded switching power supply system is
shown as follows: 545mm in width, 431mm in depth, 602mm in height. Please transport tools and
lifting equipment appropriately according to the arrangement (such as forklift and so on).
Because the packing box is bulky and heavy, please determine the unpacking location in advance
(it is necessary to consider the route between unpacking location and installation location. In
principle, the closer it is, the better it is). According to the above, prepare the necessary auxiliary
tools for transporting, such as hydraulic truck, push scooter, rope, forklift, crowbar, and so on.
During the process of transportation, pay special attention to turning, walkway elevator, upper and
lower ramps (or staircase), and other bottlenecks. It is necessary to obtain relevant information in
advance and then research carefully for transportation.
(2) Unpacking
Visually check whether there is any damage, dent or other marks on package surface. If necessary,
please take pictures to record and notify DPC.
When unpacking, pay attention to personal equipment safety.
Take out all internal contents and fillers.
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Insert the front fork into the bottom floor of machine, lift up the machine body gently to move it
horizontally to the installation location. Pay attention to uniform, balance, and safety to avoid any
personnel injury or equipment damage.
Check whether there is any damage, deformation, rust and others on equipment body.
(3) Packing List
Disassemble a spare part box (bag), take out the part (accessory) list, and check whether the list
contents are correct or not. If finding that the variety or quantity of equipment parts (accessories)
are not in conformity with the damage in transport and other situations, contact with DPC in time
so as to solve it quickly and effectively.
5.2.3 Installation of Power Supply System
(1) Frame Installation Requirements
According to specific situations at site, select the location of frame installation. The principle for
placement location is to consider the reasonability of equipment incoming and outgoing lines. The
space among front, back, left, right, wall and other obstacles shall not be less than 1m. The
installation height shall be convenient to observe, monitor and display. At the same time, it is
necessary to consider the convenience of ventilation, heat dissipation, operation and maintenance.
Frame shall be installed horizontally. The horizontal inclination degree to cabinet shall not be larger
than 5°. Use bolts to fasten it on the base or floor.
(2) Frame Fastening
If the installation of frame is to fasten on the base first, fix the base first with ground, and place the
frame on the base. Fasten the frame normally with expansion screws.
(3) Rectifier Installation
Determine the allocation of rectifier location according to the principle of three-phase balance and
heat dissipation convenience. Normally, rectifier modules are arranged as far as possible from the
upper of cabinet to the lower (the left side on the upper of front side shall be the location of
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Rectifier 1#). Disassemble the rectifier packing box to take out the rectifier. Check whether there is
any damage carefully. If there is any damage, notify DPC and maintenance personnel. If not, push
the rectifier slowly along rail into the chassis so as to match the input/output /signal plug of
rectifier with the frame completely. And then, tighten the fastening screws of its front panel with a
crosshead screwdriver.
(4) Electrical Connection
当心触电
危险 ：Before the electrical connection, place all including circuit breaker, fuse and others
respectively in the split position.
The internal wiring of power supply system has been connected well before delivery. Users can
only select and configure AC input line, DC output load line, battery input line, and ground line
according to the engineering design requirements. During the centralized monitoring through
RS232, it is necessary for users to provide RS232 connection lines. When the system is equipped
with an upper alignment wire, adopt an overhead wiring. When the system is equipped with a
lower alignment wire, lay it in a ditch groove. For the wiring position, refer to the schematic
diagram of AC/DC power distribution structure.
①
AC Wiring
AC input lines shall be selected according to actual load and battery situations. They shall be
flexible copper core cables that the cross-sectional area is 10mm2～25mm2 with a three-phase
five-wire input. If there is only one single-phase AC power supply, it is necessary to carry out the
short circuit of input three-phase wiring terminals U, V, and W. Now, the cross sectional area of AC
input line shall be increased accordingly. Before AC input line is connected with equipment, it is
necessary to configure a switch or fuse protection device. Neutral line shall ensure the reliable
connection and cannot be broken in any case. In any area that there are frequent lightning strikes,
mains incoming lines and room building shall be configured with good multi-level lightning
protection systems to ensure the safe operation of equipment.
② Load Wiring
DC output shall be equipped with a corresponding sectional area of wire or busbar (copper)
according to the capacity of load current. The connection shall be equipped with a corresponding
size of copper wiring pig tail. The negative pole of DC output is connected with the corresponding
load output, and the positive pole with the positive busbar in the frame.
③ Battery Wire
The section area of battery wire and the copper pig tail at the connection shall be increased by
comparing with the load wire. When there is only one way of battery, it must be connected with
the negative pole access of Battery 1. Specific connection steps are shown as follows:
a. According to the selected battery capacity and the maximum charging current, select
appropriate wires, and the cross-sectional area of wire shall be more than 50mm2 generally.
b. Unplug the battery fuse, use wires to connect the positive busbar of power supply system and
DC-48V of battery fuse respectively with the positive and negative poles of battery. Do not reverse
them.
c. Start 1~2 rectifiers according to the capacity of battery pack, and plug battery fuses with a fuse
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DUMC-48/50H Embedded Switching Power Supply System
handle after the output has been operated normally (set the system output voltage as the terminal
voltage of battery pack). (Pay attention to starting the rectifier and insert the fuse after output
normally. Thus, the voltage difference at two ends of fuse is small and cannot be ignited.
Otherwise, it may spark).
(4) Communication lines shall be shielded cables, and the shield layer shall be grounded well in the
terminals.
(5) Grounding
It is best for protection and operation places to lead out to the different points of grounding body
separately, or to the grounding busbar respectively. The power supply must be grounded well and
comply with the communication equipment grounding standard (the grounding resistance shall
not be larger than 3W).
5.3 Commissioning Procedures, Methods and Precautions
Before system startup, ensure to perform relevant steps and test key point data in order to prevent
any negligence or cause any system burnout and personnel injuries. First, make all input and
output switches are in the position OFF. Pull out load and battery fuse to ensure the no-load
startup, measure AC between phases as well as between phase and ground so as to confirm there
is not any short circuit.
5.3.1 Startup Commissioning
(1) Close the external input isolation switch. Observe carefully whether AC power distribution
section is operated normally. Then close the main AC input switch. Check the AC input phase
voltage shall be within the range of 304~475V AC (phase voltage 176~275V AC).
(2) After AC input has been normal, close the power supply switch of each rectifier module
respectively so as to start each switch rectifier module respectively. And observe whether each
rectifier is operating normally. After all operations have been normal, close all rectifier input
switches simultaneously.
(3) Observe whether each system parameter is abnormal through LCD display screen of the
machine, and set system operation parameters according to correct operation methods and steps.
(4) After the system is confirmed to be operating normally and each parameter is measured to
meet the requirements, close the main AC input switch, disconnect AC from the external, connect
loads, start the system, and connect with battery. The system enters a normal operating state.
(5) After beginning normal operations initially, monitor the system operating closely for some
certain period. Be careful about the monitoring information provided by the system. When there is
any alarm signal, deal with it timely. If it is serious or the system is closed for test, the shutdown
sequence is shown as follows:
① Disconnect the load and battery.
② Disconnect the main AC input switch.
③ Disconnect each rectifier switch.
④ Disconnect the external insulating switch.
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5.4 Acceptance Test Item, Methods and Criteria after Installation and Commissioning
5.4.1 Appearance Acceptance
Check the appearance of machine carefully to ensure it is clean and clear. If there is dust adhered
on appearance surface, wipe it with dry cloth or soft brush. If there is any obvious stain, wipe off it
gently with industrial alcohol. Remember not to wipe it with any unknown solvent. Plastic on panel
will not be repaired if it is corroded by the solvent.
5.4.2 Completing the Open-up Acceptance Report
According to site situations and actual user configurations, test various system indicators according
to Open-up Acceptance Report in attachments, fill it correctly, and fill the problem feedback form
in concentration according to encountered problems.
5.4.3 Training User Operation
Explain and demonstrate the basic content and the specific operation of DUMC-48/50H embedded
high frequency switching power supply system.
5.4.4 Preparing Relevant Documents for User Acceptance
Prepare relevant documents, require user acceptances, and save acceptance records.
5.5 Preparation before Commissioning, Commissioning Startup and Commissioning
5.5.1 Preparation before Commissioning
After completing the equipment adjustment (commissioning) and the startup acceptance, carry
out the equipment commissioning.
For the preparation of equipment commissioning, refer to Section 5.3 Adjustment (or
Commissioning) Procedures, Methods and Precautions.
Instructions on system configuration operation:
Note: Before the equipment delivery, carry out configuration operations of DUMC-48/50H Series
of embedded switching power supply system according to the technical requirements of
customer order. Users will not carry out system configuration and setting operations. For the
implementation of system configuration operation, enter the factory setting operation password.
When it is necessary to operate in special circumstances, users may entrust the after-sale
engineer of DPC to carry out the implementation.
5.5.2 Commissioning
For the equipment commissioning, refer to Section 5.3 Adjustment (or Commissioning) Procedures,
Methods and Precautions.
(1) Startup
After system startup, the output voltage of the system (rectifier) will be increased gradually from
“Startup Voltage”. When the battery charging current is less than its charging current limit, the
system (rectifier) voltage will be increased gradually. When the battery charging current is more
than its charging current limit, the system controller will control the rectifier to go into the current
limit operation state. When the system (rectifier) voltage is increased to the value of Float Charging
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Voltage, the system will go automatically into a Float Charging operation state.
(2) Float Charging
The system operates in a Float Charging state. While supplying the power for loads, supplement
the self-discharge of battery pack.
(3) Equalized Charging Test
① Start the Equalized charging mode:
Manual Equalized charging operation: operate it through the keyboard in the operation menu.
Automatic Equalized charging operation: control the program software automatically in the
controller.
② Automatic Equalized charging startup mode:
Charging current limit value = charging current limit factor×nominal capacity of Battery 1. The
default value of charging current limit factor is 0.1C10.
Uniform floating conversion current = uniform floating conversion factor×nominal capacity of
Battery 1. The default value of uniform floating conversion factor is 0.01C10.
Note: when both Batteries 1 and 2 are configured in the system, the current limit shall refer to
the nominal capacity of Battery 1. When there is only Battery 2 in the system and there is not
Battery 1, the current limit shall refer to the nominal capacity of Battery 2. If the system is not
configured with any battery (the battery capacity needs to be set as 0), the battery state is
displayed as not being connected in the main menu of controller. Now, the system will not go
into any Equalized charging state. And, the above current limit functions will not have any
action.
a. Uniform cycle charging: the controller can be charged uniformly according to Equalized charging
Cycle, Equalized charging Time, and other set parameters.
b. Recovery after power cut: when AC stops the power supply, the DC system load will be supplied
by batteries. After AC restores to carry out power supply, the controller confirms AC failure time is
no shorter than Effective Power cut time, the system will enter a Equalized charging state.
c. Float charging converting into Equalized charging: in the case of float charging, the charging
current of battery is more than 0.05C and maintained for 10 minutes. The system will enter a
Equalized charging state automatically.
d. Equalized charging process: The system (rectifier) voltage will begin to rise by minus 1V from the
current value. After reaching the Equalized charging Voltage set in the system, the voltage stops
increasing. During the period, it is a constant current charging, the charging current shall be no
more than the Charging Current Limit of the system. When the voltage rises to the Equalized
charging Voltage set in the system, the current will be decreased gradually. During the period, it
will be a constant voltage charging.
③ Uniform battery charging end conditions:
a. Exit condition of uniform and float charging after power cut and restore: reach the Equalized
charging voltage. After the charging current is less than the Uniform Float and Conversion Current
of system, the retention time is longer than the Equalized charging Retention Time in system
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DUMC-48/50H Embedded Switching Power Supply System
setting.
b. Exit condition of manually Equalized charging or periodically Equalized charging: The charging
time is longer than the Equalized charging Time in system setting.
No matter what form of Equalized charging, exit the Equalized charging compulsorily when the
Equalized charging time is no shorter than the Equalized charging Time Limit in setting.
(4) Battery Test
① Battery test starting condition:
The battery test can be operated and implemented through controller keyboard. When the
operation of Battery Test is confirmed, the battery test begins: the rectifier in system will reduce
the current output voltage and stop the DC current output. The battery will supply the power for
DC system loads. Battery test operations can be implemented when the three following conditions
are met:
a. The switch of “Periodic Test” is set as “ON” and “The next test time is now”. The controller is
confirmed for 1 minute. The battery test switch shall be ON automatically to carry out the battery
test.
b. The switch of “Battery Test” is set as ON.
c. In an automatic sleep control mode and after the system is started initially, the battery will be
charged continuously or implemented with float charging for 24 hours (the battery current is no
less than 0). The battery test switch is ON automatically to carry out a battery test.
② Battery test end conditions:
During the battery charging process, the battery supplies the power for DC loads, and the battery
voltage will be reduced gradually. When one of the following conditions is met, the battery test is
completed:
a. The switch of Battery Test is set as OFF to complete the batter test immediately. The battery test
results are kept constant.
b. The battery is not connected to complete the battery test immediately. The battery test is
normal.
c. When there is any AC fault, Equalized charging or DC communication fault, exit the battery test.
And the test results are kept constant.
d. Once the test time is over, exit the battery test, which is normal.
e. When the system voltage is less than the test termination voltage, exit the battery test. And
when there is any battery test fault, it will alarm.
③ Test parameter:
a. The test period is set within the range of 20~90 days.
b. The switch of Cycle Test is set as ON. The test time is set within the range of 1~5 minutes, and
the test termination voltage is set within the range of 46V~48.4V.
c. The switch of Cycle Test is set as OFF. The test time is set within the range of 1~180 minutes. The
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DUMC-48/50H Embedded Switching Power Supply System
test termination voltage is set within the range of secondary switch-out voltage +2V~float charging
voltage.
d. Under the automatic sleep control mode, the system initially starts up. After the battery is
implemented with continuous or float charging for 24 hours, the battery test time is fixed for 2
minutes, and the test termination voltage is fixed as 48V.
④ Under the situation of AC power cut, module fault, and battery discharge, it is considered to
have implemented with a battery test when the battery discharging time exceeds the battery test
time. Determine the battery test fault according to the voltage, and calculate the next test time
again. The test starting and ending time will not be updated.
Note: For battery test and sleep function control, see the controller setting description.
6. Usage and Operation
6.1 Preparation and Inspection before Using
Before system startup and operation, check and confirm all input and output switches are in the
position OFF again. Unplug the load and the battery fuse. All including system input/output
connection wires, signal lines, operating ground wires, and protection ground wires are fastened
firmly to meet the requirements of design specification in the project.
6.2 Operating Procedure and Method for Startup and Operation
6.2.1 Startup
(1) System startup
The system startup process shall be operated according to the following steps so as to ensure the
smooth startup and operation of system.
① Ensure the input switch of switch rectifier module is in a split state and start the system in case
of no load.
② Close the general AC input switch.
③ Check whether AC input is normal. If there is any fault, carry out the following operations
continuously only after eliminating the fault.
④ After AC input has been normal, close the input switch of each switch rectifier module
respectively to start each switch rectifier module separately, and observe whether each switch
rectifier module can be started normally.
⑤ Observe whether each system parameter is abnormal through LCD display screen on the
machine according to the operation methods and procedures of DKD51 monitoring module in
introduction. After the above has been normal, set the system operating parameters according to
the requirements.
⑥ After the system is confirmed to be operating normally and each parameter has met the
requirements, close the general AC input switch, disconnect AC from the external, connect loads,
start the system, and connect with battery.
⑦ During the system operation process, maintenance personnel shall pay attention to the system
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DUMC-48/50H Embedded Switching Power Supply System
information provided by the monitoring system and deal with alarm signals timely.
6.2.2 System Control Operation and Parameter Setting
(1) General Operation
The controller man-machine interface of DUMC-48/50H series of embedded switching power
supply system is composed of display screen, indicator and keyboard. For its schematic appearance
diagram, see Figure 2-3. There are three indicators including red, yellow and green lights at the top
of controller panel LCD screen as well as four keys at the bottom of LCD screen.
For the function description of DKD51 type of controller indicator, see Table 2-1. For the function
description of key, see Table 2-2.
(2) Controller Settings
①Main screen
When the system is switched on, the operation of controller is shown in Figure 6-1-1. After several
seconds, the display of main screen is shown in Figure 6-1-2. Press the key ↓ as shown in the
interface of Figure 6-1-3.
AC Vol
DC Vol
Load Cur
Batt Cur
Figure 6-1-1
：220
：0.0
：0.0
：0.0
V
V
A
A ▼
Figure 6-1-2
System ：OK
▲
Battery ：Equal
Time
：
2070-01-01 03:00:00
Figure 6-1-3
Humid :xx %
Sys Info
Parm Setup
Ctrl Setup
Log
Figure 6-1-4
Figure 6-1-5
Temp :xx
℃▲
←
The basic state of system is displayed on the main screen. When the system is in a standard
configuration but not configured with any detection unit of environment capacity, the environment
detection capacity is not displayed on the main screen. If the system is configured with a detection
unit of environment capacity, the environment detection capacity will be displayed on the main
screen as shown in Figure 6-1-3. For any sign displaying page-down, see Figure 6-1-4.
Press the key
to enter the next level of menu in the main screen to carry out system
information query and operation as shown in Figure 6-1-5.
② Password input screen
When go to the operation interface of “Parameter Setting” or “Control Output”, enter the user
password “123” as shown in Figure 6-2-1. If there is not any key operation within 3 minutes after
enter the password, the backlight of LCD screen will be turned off, and the password will be invalid.
If go in again, enter the password again.
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DUMC-48/50H Embedded Switching Power Supply System
User Password：
000
Password error
User Password：
123OK
Figure 6-2-1
Figure 6-2-2
After enter password, the first digital number is in a highlight state. Press the key ↑↓ to adjust the
number. Press the key
to return to the last level of menu. Press the key
to make the next
number for modifying in a highlight state. During the modification process, press the key
if
enter the last number again, and the last number will be in a highlight modification state. After
enter the last number correctly, press the key
to enter the next level of menu. If enter a
password error, there will be a prompt of Password Error as shown in Figure 6-2-2. Now, re-enter
the correct password.
③ Operating Information
Through the operating information, check system information, DC information, battery information,
and module information as well as current system alarm, sleep information, environmental
information and customer information. In Figure 6-1-5, select “Operating Information”, and press
the key
to enter the interface of Figure 6-3-1. Now, press the key ↑↓ to select the
information to be viewed, and the key
to enter the corresponding information.
AC info
DC info
Batt. info
Module info
Curr Alarm
▲
Sleep
Envi Info
Customer Info
▼
Figure 6-3-1
Figure 6-3-2
● AC Information
In the interface of Figure 6-3-1, press the key
. If “AC Power Supply” in configuration
information is “Single Phase”, it will display as shown in the interface of Figure 6-3-3. If set as
“Three-Phase”, it is shown as the interface of Figure 6-3-4. If as AC input two-way automatic
switching system, use ① and ② to indicate which way that the current is in operation. If as AC
manual input system, the current operating state is displayed as ①. When the system is as a
standard configuration but not configured with any AC current detection unit, AC current will not
be displayed in the interface. The frequency of current AC input may be viewed in Figure 6-3-5.
When the communication fails, the information is displayed as “0”.
AC Volt : xxx V
AC Curr : xxx A
AC Volt (V) ①/②
xxx xxx
xxx
AC Curr (A)
xxx xxx
xxx
AC Freq ：X.X HZ
Figure 6-3-3
Figure 6-3-4
Figure 6-3-5
● DC Information
In Figure 6-3-1, press the key ↑↓ to select “DC Information” and the key
to enter the
interface of Figure 6-3-7~Figure 6-3-8 to display AC voltage and the load current.
Beijing Dynamic Power Co., Ltd. (DPC)
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DUMC-48/50H Embedded Switching Power Supply System
←
DC Volt ：0.0 V
Load Curr ：
0.0 A
Figure 6-3-7
Figure 6-3-8
Basic Info
● Battery Information
In Figure 6-3-1, press the key ↑↓ to select “Battery Information” and the key
to enter the
interface of Figure 6-3-9~Figure 6-3-15 to display battery voltage, battery current and other
relevant information.
Batt ①info
Batt ②info
Batt dis-charge
←
Batt ①Volt ：-Batt ①Curr ：-Batt ①Temp：-Batt Remain： 0%
Figure 6-3-9
Batt ②Volt ：-Batt ②Curr ：-Batt ②Temp：-Batt Remain： 0%
Figure 6-3-10
Batt Back-up Time ：
9999hours
Last Time EQ Start ：
00- 00- 00 00: 00 ▼
Last Time EQ End ： ▲
Figure 6-3-12
Figure 6-3-13
00 -00-00
00 :00
Next Time EQ Start ：
00 -00-00
00 :00 ▼
Figure 6-3-11
Batt Test Start ： ▲
00-00-00 00:00
Batt Test End ：
00-00-00 00:00 ▼
Figure 6-3-14
Batt Test Start ： ▲
00-00-00
00:00
Figure 6-3-15
● Module Information
In Figure 6-3-1, press the key ↑↓ to select “Rect Info”, and display the information of 1~20
modules according to the setting of “Maximum Module Number” on the configuration screen.
When there are 12 modules, press the key
to enter the interface of Figure 6-3-16~Figure
6-3-18. When there is 1 module, press the key
to enter the interface of Figure 6-3-22. In the
interface of Figure 6-3-16~Figure 6-3-18, press the key
and there appears ←. Now, press the
key ↑↓ to select the module that is to be viewed, and then press the key
to enter the
detailed module information. Figure 6-3-19~Figure 6-3-21 is the detailed module information, and
the serial number of module corresponds to the location of module. When any module is not
installed, it displays ---. When there is any fault, it displays ！！！. When there is a normal situation,
it displays the module current. When there is AC power failure, the module does not alarm.
Rect 01: --Rect 02: xx A
Rect 03: xx A!!!
Rect 04: xx A
▲
Figure 6-3-16
Rect 02info
Run
: off
CurrLimt : ON
Comm Err: ON
▲
Figure 6-3-19
Beijing Dynamic Power Co., Ltd. (DPC)
Rect 05: --Rect 06: xx A
Rect 07: xx A !!!
Rect 08: xx A
▲
Figure 6-3-17
Rect 02Info
DCV High : No
ACV High : No
Fan Err : No
Figure 6-3-20
28
Rect 09: --▲
Rect 10: xx A
Rect 11: xx A !!!
Rect 12: xx A
Figure 6-3-18
Rect 02Info
Temp High : NO
High Curr : NO
▲ Fuse Err : NO
▲
▲
Figure 6-3-21
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DUMC-48/50H Embedded Switching Power Supply System
Rect 01: ---
←
Figure 6-3-22
● Current Alarm
In Figure 6-3-1, press the key ↑↓ to select “Current Alarm”. If the system is normal, press the key
to enter the interface of Figure 6-3-23. If the system is in fault, press the key
to enter the
interface of Figure 6-3-24~Figure 6-3-25 to display the current system fault. It can display 4 faults in
each page. When there are more than 4 faults, one page of display interface will be increased.
View the detail fault information. For start, end time and system information in fault, please view
them in the screen “Alarm Record”.
No alarm
ACV Low
LLVD Alarm
Rect Fault
RectComm Fault
Figure 6-3-23
Figure 6-3-24
DCV Low
Figure 6-3-25
● Sleep Information
In Figure 6-3-1, press the key ↑↓ to select “Sleep Information”. If the system is normal, press the
key
to enter the interface of Figure 6-3-26. It displays as shown in Figure 6-3-26.
Auto Sleep Ctrl
Figure 6-3-26
● Environment Information
In Figure 6-3-1, press the key ↑↓ to select “Environment Information”. If the system is normal,
press the key
to enter the interface of Figure 6-3-27. It displays as shown in Figure 6-3-27.
Sys Temp ：-Envi Temp ：-EnviHumdi ：--
Figure 6-3-27
● Customer Information
In Figure 6-3-1, press the key ↑↓ to select “Customer Information”. If the system is normal, press
the key
to enter the interface of Figure 6-3-28. Press the key ↑↓ to select “Customer
Information ①”, “Customer Information ②”, “Customer Information ③”, and “Customer
Information ④”. If the system is normal, press the key
to enter the interface of Figure 6-3-29.
It displays the current customer load current and the current total power consumption.
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DUMC-48/50H Embedded Switching Power Supply System
Load Curr ：0.0 A
Power Consumption
tion
：
0 .00
kWh
Customer ①info
Customer ②info
Customer ③info
Customer ④info
Total Customer Info
▲
▼
Figure 6-3-28
Figure 6-3-29
Figure 6-3-30
In Figure 6-3-28, press the key ↓ to select “Total Customer Information” as shown in the interface
of Figure 6-3-30. If the system is normal, press the key
to enter the interface of Figure 6-3-31.
It displays the current DC voltage, the total load current and the total power consumption. Select
the time to enter Figure 6-3-33 and Figure 6-3-34 so as to view the power proportion of different
users in any time period of three months.
Basic Info
Batt Power
Cumulative Power
Power Proportion
←
DC Volt ：0.0 V
Time
：
Load Curr ：
0.0 A
F ：2070-01-01
Total Power
： Consumption T ：2070-01-01
0.00
kWh
Figure 6-3-31
Figure 6-3-32
Figure 6-3-33
Time
：
F ：2070-01-01
T ：2070-01-01
Custm①
：0.0 %
Custm②
：0.0 %
Custm③
：0.0 %
Custm④
：0.0 %
Figure 6-3-34
Figure 6-3-35
④ Parameter Setting
In Figure 6-1-5, press the key ↑↓ to select “Parm Setting”. Press the key
to enter the interface
of Figure 6-4-1 so as to view and modify the system operating parameters. It is necessary for
entering to input the password. For the operation method, see Password Input Screen. If the
system is configured with the environment capacity detection, press the key ↑↓ with scroll
display in the interface of Figure 6-4-1, and there will appear “Sys Parm” as shown in Figure 6-4-2.
AC Parm
DC Parm
BattParm
LVD Parm
▼
Figure 6-4-1
Sys Parm
Saving Parm
Alarm Parm
EnviParm
▲
Figure 6-4-2
● AC Parameter
In the interface of Figure 6-4-1, press the key ↑↓ to select “AC Parameter”, and then press the key
and ↓ to enter the interface of Figure 6-4-3~Figure 6-4-4. Now, press the key ↑↓ to select any
parameter for modifying. Press the key
at the parameter for modifying as shown in the
interface of Figure 6-4-5. Parameters are in a highlight state. Press the key ↑↓ to modify. After
modifying, press the key
to save the parameters. Press the key
to restore and modify the
previous parameter, and return to the interface of Figure 6-4-3~Figure 6-4-4.
ACV High ： 264 V
ACV Low ： 176 V
Power Off ：10 Mins
Freq High Limt: 50 HZ▼
Beijing Dynamic Power Co., Ltd. (DPC)
Freq Low Limt45.0 ▲
AC Over Curr: 2.0A
ACV High ： 264 V
ACV Low ： 176 V
Power Off ：10 Mins
▼
30
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DUMC-48/50H Embedded Switching Power Supply System
Figure 6-4-3
Figure 6-4-4
Figure 6-4-5
● DC Parameter
In the interface of Figure 6-4-1, press the key ↑↓ to select “DC Parameter”. Press the key
to
enter the interface of Figure 6-4-6. After selecting “Basic Parameter”, press the key
to enter
the interface of Figure 6-4-7.
The parameter modifying method is same as that of “AC Parameter”.
Basic Parm
←
DCV High ：47.4V
DCV Low ：45.2V
←
Dis Cab Conf
Figure 6-4-6
Figure 6-4-7
In the interface of Figure 6-4-6, select “Dis. Cabinet Configuration”. Press the key
interface of Figure 6-4-8~Figure 6-4-10.
to enter the
The parameter modifying method is same as that of “AC Parameter”.
Dis Cab 01：Not Conf
Dis Cab 02: Not Conf
Dis Cab 03: Not Conf
Dis Cab 04: Not Conf
▼
Figure 6-4-8
Dis Cab 05 ：
Not Conf
Dis Cab 06: Not Conf
Dis Cab 09: Not Conf
Dis Cab 08: Not Conf
▼
……
Dis Cab 32: Not Conf
▼
Figure 6-4-9
Figure 6-4-10
● Battery Parameter
In the interface of Figure 6-4-1, press the key ↑↓ to select “Battery Parameter”. Press the key
to enter the interface of Figure 6-4-16~Figure 6-4-21.
The parameter modifying method is same as that of “AC Parameter”.
Temp Comp
：
72 mV / ℃
：
25 ℃
▼
Temp High ： 45 ℃ ▲
Temp Low ： 10 ℃
Batt imbalance
：
1 .0V
▼
Figure 6-4-16
Figure 6-4-17
Ref Temp
EQ Time ：10 H
▲
EQ Cyc ：90 D
EQ Lmt ：10 H
EQ Hold ：10 Mins ▼
Figure 6-4-19
Test End Time：
72 Mins
Test End Volt：
48 .0V
▲
▼
Figure 6-4-20
CurrLmt ： 0.10C10
EQ/FL
： 0.01C10
EQ Volt ： 55.2V
FL Volt ： 53.6V
▲
▼
Figure 6-4-18
Batt ① Rated Cap： ▲
300Ah
Batt ② Rated Cap：
300Ah
Figure 6-4-21
● LVD Parameter
In the interface of Figure 6-4-1, press the key ↑↓ to select “LVD Parameter”. Press the key
enter the interface of Figure 6-4-22~Figure 6-4-24.
The parameter modifying method is same as that of “AC Parameter”.
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to
DUMC-48/50H Embedded Switching Power Supply System
Cust①Remain Time ：
432 Mins
Cust②Remain Time：
1
Mins ▼
Figure 6-4-22
Cust③Remain Time ：
▲
1
Mins
Cust④Remain Time ：
1
Mins ▼
Figure 6-4-23
BLVD Volt ：43 .2V
▲
Figure 6-4-24
● System Parameters
In the interface of Figure 6-4-1, press the key ↑↓ to select “Sys Parm”. Press the key
to enter
the interface of Figure 6-4-25~Figure 6-4-27. Among them, telephone number and system time can
be modified one by one in step to carry out “Alarm Log Clearance” and “Operation Log Clearance”.
In operation, it pops up an interface as shown in Figure 6-4-28. Select “OK” to pop up an interface
as shown in Figure 6-4-29. It will not clean any alarm record that is not finished. When carry out
the operation of “Restore Default Settings”, pop up the interface of Figure 6-4-30. After select and
confirm, pop up the interface of Figure 6-4-31. The parameter modifying method is same as that of
“AC Parameter”.
Language ：
中文
IP Addr ：1
Baud Rate ：
2400
Err Respond ：Off ▼
Figure 6-4-25
Dial Type： Pulse
▲
Recd Inter
：1
Mins
Phone Num ①：
2345678901
▼
Figure 6-4-26
OK
Delt Err Log?
Cancel ←
Figure 6-4-28
Phone Num ②：
▲
2345678901
Time Setup
：
2070 - 01- 01 00 :00: 0
Figure 6-4-27
ok
Deleting Log …
Figure 6-4-29
Default？
Cancel←
Figure 6-4-30
Initializing…
Figure 6-4-31
● Sleep (Energy Saving) Parameter
In the interface of Figure 6-4-1, press the key ↑↓ to select “Sleep Parameter”. Press the key
to enter the interface of Figure 6-4-32~Figure 6-4-35. Energy saving parameters are the setting
ones when the system needs the energy saving. These parameters shall be set according to the
best module efficiency point and the user loading situation.
The parameter modifying method is same as that of “AC Parameter”.
Waken Volt ： 51.2 V
Sleep Cyc ： 40 Day
Sleep Stop ： 80 ％
Sleep Start： 24 ％ ▼
Min Online ： 1
▲
Maint Test ： off
Tempt Non-sleep:off
Manda Non-sleep: 0ff▼
Figure 6-4-32
Figure 6-4-33
Sleep Start delay: ▲
2
H
Sleep Pause Time:
24 H
▼
Test End Volt:
▲
46 .0V
Test time：2
Mins
Test Cyc：30 D
Figure 6-4-34 Figure 6-4-35
● Err Parameter
In the interface of Figure 6-4-1, press the key ↑↓ to select “Err Parameter”. Press the key
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DUMC-48/50H Embedded Switching Power Supply System
enter the interface of Figure 6-4-36. In the interface of Figure 6-4-36, select “Err Level”, press the
key
to enter the interface of Figure 6-4-37~Figure 6-4-50. In the interface of Figure 6-4-36,
select “DI err Setting”, and press the key
to enter the interface of Figure 6-4-51.
Err Level ←
DI Err setup
Figure 6-4-36
st
1 shunt Serious Err▲
nd
2 shunt Serious Err
st
1 LVD ：Normal Err
ND
2 LVD ：Normal Err
▼
Figure 6-4-40
AC IN curr high：
▲
Normal Err
Rect Err
RectComm
AC off: Serious Err
ACV High:Serious Err
▼
ACV Low: Normal Err
DCV High：Serious Err▲
DCV Low ：Serious Err
AC P Lose: Normal Err
AC shunt：Normal Err
▲
AC Comm ：Normal Err
AC SPD ：Normal Err
Fuse Err：Normal Err
▼
Figure 6-4-37
Figure 6-4-38
Figure 6-4-39
：Serious Err▲
：Serious Err
Batt Temp High ：
▲
Normal Err
▼
Sys over load : Normal Err
Batt test Err ：
Normal Err ▼
Figure 6-4-4
Figure 6-4-42
Sys Temp High Normal Err
LVD board Err
▲
Normal Err
Batt imbalance ：
▲
Normal Err
Power Board ：
Normal Err▼
Figure 6-4-43
Main Cab shunt
：
Normal Err ▼
Sub Cab shunt ： ▲
No alarm
Sub cab comm
No alarm ▼
Figure 6-4-44
Figure 6-4-45
Figure 6-4-46
Door
Water
Smoke
Infra
Envi Temp ：No Alarm
Envi Hum ：No Alarm
ACV IN high
：
Normal Err ▼
：No alarm ▲
：No Alarm
：No Alarm
；No Alarm ▼
Figure 6-4-48
▲
Fan
：No Alarm
Broken ；No Alarm ▼
Figure 6-4-49
Temp Ctrl ：No Alarm ▲
AC Freq ：No Alarm
Figure 6-4-50
DC SPD ：Serious Err
DC shunt：Normal Err▼
DI-1Err ：No alarm ▲
DI-2Err ：No alarm
DI-3Err ：No Alarm
DI-4Err ；No Alarm ▼
Figure 6-4-47
DI-1Err ： 1
DI-2Err ： 1
DI-3Err ： 1
DI-4Err ； 1
←
Figure 6-4-51
The parameter modifying method is same as that of “AC Parameter”.
● Environmental Parameter
In the interface of Figure 6-4-1, press the key ↑↓ to select “Environmental Parameter”. Press the
key
to enter the interface of Figure 6-4-52~Figure 6-4-53. The high and low limits of the
interface temperature and humidity are the alarm setting values of environmental temperature
and humidity. If the system is not configured with environmental detections, there is not the
interface at all.
The parameter modifying method is same as that of “AC Parameter”.
Envi Temp High ：
65 ℃
Envi Temp Low ：
- 20 ℃
▼
Figure 6-4-52
Envi Hum High
：
▲
90 %
Envi Hum Low：
45 ℃
Figure 6-4-53
⑤ Control Output
In Figure 6-1-5, press the key ↑↓ to select “Ctrl Output”. Press the key
to enter the interface
of Figure 6-5-1 so as to view and carry out the system control. It is necessary for entering to input
the password. For the operation method, see “Password Input Screen”.
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DUMC-48/50H Embedded Switching Power Supply System
Sys Ctrl
←
Rect Ctrl
Dry Contact
Power ：ON
Manual EQ : OFF
Cyc EQ ：OFF
Battt Test
： OFF
Figure 6-5-1
▼
Figure 6-5-2
Temp Comp OFF
Sound ：OFF
Sleep ：OFF
Sleep Mode Auto
Figure 6-5-3
▲
Cyc Test ：ON
▲
▼
Figure 6-5-4
● System Control
In the interface of Figure 6-5-1, press the key
to enter the interface of Figure 6-5-2~Figure 6-5-4.
Now, press the key ↑↓ to select the interface of parameters. Press the key ↑↓ to enter the
interface of Figure 6-5-2. Press the key ↑↓ to select the parameters for modifying. At the location
of parameter for modifying, press the key
, and parameters are in a highlight state and can be
modified. After modification, press the key
to save parameters. Press the key
to restore
parameters before modification, and return to the interface of Figure 6-5-2.
● Module Control
In the interface of Figure 6-5-1, press the key ↑↓ to select “Module Control”. Press the key
to
enter the interface of Figure 6-5-7. Display the information of 1~48 modules according to the
setting of Maximum Module Number in the configuration screen. Press the key ↑↓ to select “Rect
Inst”. Press the key
to enter the interface of Figure 6-5-10~Figure 6-5-12 (for 12 modules) or
the interface of Figure 6-5-8 (for 1 module). Press the key ↑↓ to select Rect ON/OFF. Press the key
to enter the interface of Figure 6-5-13~Figure 6-5-15 (for 12 modules) or the interface of Figure
6-5-9 (for 1 module).
The controller may obtain the rectifier module state automatically. After startup, the controller will
communicate with modules and change the state of Module Installation into Installation
automatically. During the system operation process, modify the corresponding state of Module
Installation manually into “Not Inst” after there is any module communication fault. And the alarm
of module communication fault will be eliminated.
The state of Rect ON/OFF displays the state of module uploading switch. The module startup and
shutdown states can be controlled through buttons. Pay attention that the serial number of
controller display module does not correspond one by one to that of inserted position.
Rect Inst ←
Rect ON/OFF
Rect01: Inst ←
Figure 6-5-7
Figure 6-5-8
Rect01: Inst
Rect02: None
Recr03: Inst
Rect04: Inst
▲
Figure 6-5-10
Rect 05: Inst
Rect 06: None
Rect 07: Inst
Rect 08: Inst
Figure 6-5-11
Rect01: ON
←
Figure 6-5-9
▲
▲
Rect 09: Inst
Rect 10: None
Rect 11: Inst
Rect 12: Inst
▲
Figure 6-5-12
The system is configured with modules in RS485 communication mode. Module installation and
switch interface will display the corresponding contents according to the Maximum Module
Number.
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DUMC-48/50H Embedded Switching Power Supply System
The parameter modifying method is same as that of “Sys Ctrl”.
Rect01: ON
Rect02: ON
Rect03: ON
Rect04: ON
▲
Rect05: OFF
Rect06: ON
Rect07: ON
Rect08: ON
Figure 6-5-13
Rect 0
9: ON
Rect10: ON
Rect11: ON
Rect12: ON
▲
▲
Figure 6-5-14
▲
Figure 6-5-15
● Dry Contact Control (optional)
In the interface of Figure 6-5-1, press the key ↑↓ to select “Dry Contact Control”. Press the key
to enter the interface of Figure 6-5-16~Figure 6-5-26. One dry contact can combine and output
several fault, or output only one fault. The fault not needing any dry contact output will display --,
and that needing any dry contact output will display the corresponding serial number of dry
contact. Fault types may be divided into 41 types as shown in Figure 6-5-18~Figure 6-5-27.
Power off ：-ACV High ： -ACV Low ： -AC Phase ： --
▼
AC SPD
AC shunt
AC Comm
DC shunt
：-：-：-：--
▲
▼
Fuse
：-DCV High：-DCV Low ：-ST
1 LVD ：--
▼
Figure 6-5-16
Figure 6-5-17
Figure 6-5-18
Batt Temp
： High -- ▲
Fan
：-Door
：-Water ：-▼
Smoke ：-▲
Infra ：-Broken ：-AC IN curr high --▼
AC IN MCB ：-RectComm
：-Envi Temp ：-Envi Hum
：--
Figure 6-5-21
Figure 6-5-22
Figure 6-5-20
Sys high：Temp -- ▲
Over Load
：-Power Board
：-LVD Board ：-▼
Figure 6-5-24
Main Cab shunt
：-Sub cab shunt
：-Sub cab comm：-AC freq
：--
Figure 6-5-25
▲
nd
2 LVD ：-Rect
：
-Batt
：-DC SPD ：--
▲
▲
▼
Figure 6-5-19
▲
▼
DI-1Alarm： -DI-2Alarm： -DI-3Alarm： -DI-4Alarm： --
▲
▼
Figure 6-5-23
Temp ctrl
：--
▲
▼
Figure 6-5-26
According to the setting of Dry Contact Number in the configuration screen, the system can output
2~6 dry contacts. After changing the configuration of dry contact number, please confirm whether
the dry contact number of each fault output can be corresponded in the interface of Dry Contact
Control. The parameter modifying method is same as that of “System Control”.
6.3 Monitoring and Recording in Operation
① Recording and Querying
In Figure 6-1-5, press the key ↑↓ to select “Err Log”. Press the key
to enter the interface of
Figure 6-6-1 so as to view the system history Err Log and the Running Log.
● Err Log
In the interface of Figure 6-6-1, press the key
to enter the interface of Figure 6-6-2. Enter the
start and end time of err log to view the err log in segment. The interface indicates the total err
amount inquired in the time period and the current err location shown as “001/120” in Figure
6-6-4. The controller can store 10000 err log to record the start and end time of err and the system
status when there is any fault. It adopts a first-in-and-first-out mode to display 1 errlog in each
Beijing Dynamic Power Co., Ltd. (DPC)
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DUMC-48/50H Embedded Switching Power Supply System
page. In the interface, press the key
to enter the interface of Figure 6-6-7 and Figure 6-6-8 so
as to display the detailed information when there is any system err. If there is any history err log, it
will display the interface of Figure 6-6-3.
Err Log
check time
Start
: xx
-xx-xx
End
Figure 6-6-1
End
xx
-xx-xx
Start
End:
▲
x -xx
-** -**
Figure 6-6-3
▲
Rect 01
xx:xx:xx
xx:xx:xx
001/120
No err
xx:xx:xx
xx:xx:xx
Figure 6-6-2
SPD
Start
: xx
-xx-xx
xx
-xx-xx
xx :xx: xx
** :**:**
002/ 120
▲
Start
End:
Figure 6-6-4
Figure 6-6-5
6.4 Shutdown Procedure, Method and Precaution
▲
AC off
xx-xx xx:xx:xx
xx-xx xx:xx:xx
120 /120
Figure 6-6-6
The system shutdown process shall be implemented generally according to the following steps:
(1) Disconnect the general input switch of rectifier module;
(2) Disconnect the input switch of each switch rectifier module;
(3) Disconnect the external input isolation switch of system.
7. Fault Analysis and Troubleshooting
7.1 Alarm Instruction and Treatment
When there is any system fault, the monitoring unit will send alarm signals according to fault
situations. All faults shall have the sound and light alarms and the text prompts. When there is any
alarm, the red alarm light on monitoring unit is ON, and the buzzer will send an alarm sound and
the warning information to the remote monitoring center.
All including system rectifier module and monitoring unit shall have been equipped fully with
internal protection designs. That there is any fault with single module will not influence the system
operation. When there is any fault, each rectifier module will exit the operation automatically.
When there is any fault with monitoring unit, the rectifier module will be kept always in a float
charging state, and the system can still operate normally.
When there is any alarm in system, the monitoring unit will send sound and light alarm signals.
Whenever the monitoring unit is in any interface, users can enter the display interface of Alarm
Information. Maintenance personnel shall check corresponding equipment according to the alarm
information prompted by the monitoring unit to determine the fault type and position, and take
corresponding countermeasures.
7.2 Alarm and Countermeasure Influencing System Output
If the battery voltage is too low, it will output a load over-voltage or under voltage, and the output
of switch rectifier module is abnormal. When there is any fault that a load fuse is broken to
influence the output, carry out treatment according to the countermeasures in Table 7-1.
Table 7-1 Alarm and Countermeasure Influencing System Output
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DUMC-48/50H Embedded Switching Power Supply System
Description of
Phenomena
Countermeasure
Battery voltage is too
low
Switch off the load circuit automatically to protect the battery and prevent
the battery from over-discharge (in a secondary switch-out mode).
Load over-voltage or
under voltage
Check the output voltage of each switch rectifier module and the
operating state of load equipment. Check whether the monitoring unit is
damaged.
Rectifier module
Check whether there is any circuit breaker with rectifier module, or
cannot be started, and
whether the input circuit breaker of rectifier module is damaged. Replace
circuit breaker is
spare rectifier module or circuit breaker.
broken
Rectifier module is
Replace the corresponding switch rectifier module for overhaul, and
abnormal or damaged replace it with a spare rectifier module.
Check whether there is any short circuit or other fault with load
Load fuse is
equipment, whether the operating current of load equipment is more
broken/circuit breaker
than the capacity of fuse/circuit breaker. After confirming there is not any
is broken
question, replace it with a spare fuse/close the circuit breaker.
Check whether the communication line among each system component or
Controller cannot
between component and controller is normal. During the investigation
recognize any module
process, isolate some communication lines.
Check the control wiring location of electric protection contactor and the
Electric protection
situation of AC power supply. Check whether there is any battery in the
contactor does not act
system, and carry out an appropriate adjustment.
7.3 Alarm and Countermeasure not Influencing System Output
If there is any AC input overvoltage, under voltage and phase loss, the monitoring unit will also
generate corresponding alarm signals when there is any current limit of rectifier module, low
voltage of battery pack (different from battery under voltage), mains shutdown and other faults
not influencing the power supply of load equipment, the monitoring unit will also generate
corresponding alarm signals. According to the monitoring and prompt information, the
maintenance personnel shall check equipment, determine the fault type and location, take
corresponding countermeasures, ensure the system is in the best operating state, and prevent the
fault from being more serious. For its phenomenon and countermeasures, see Table 7-2.
Table 7-2 Alarm and Countermeasure not Influencing System Output
Description of Phenomena
Beijing Dynamic Power Co., Ltd. (DPC)
Countermeasure
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DUMC-48/50H Embedded Switching Power Supply System
Description of Phenomena
AC over-voltage,
under-voltage and phase
loss
Countermeasure
Switch off the input, start the power supply of oil engine, or carry out
power supply with batteries till the input is normal. Check the input
line and peripheral power distribution panel in phase loss
Rectifier module input is
Check the rectifier module input switch, and monitor the module
abnormal or output current output current. If there is any internal fault of switch rectifier
is limited
module, replace the module.
Mains failure
Check whether oil engine has been started. Otherwise, start the oil
engine.
Battery voltage is low
Carry out charging after the mains have been normal.
Current limit of rectifier
module
Controller is abnormal
Check whether there is any load fault.
system is in a charging state.
Determine whether the
Check whether there is any fault of rectifier module. If there is any
fault with rectifier module, replace it.
Check the monitoring system. If it is not resolved, notify the
after-sale engineer for maintenance.
Note: After AC power cut, ask the maintenance personnel of user to carry out power generation.
On one hand, ensure the smooth communication. On the other hand, this is conducive to the
maintenance of battery. If power generation is not carried out timely, it is possible to interrupt
the communication.
The system is separated from the controller and can operate normally. When there is no controller,
the system fault information will not be transmitted to the remote monitoring center, and there is
no any local monitoring fault information.
When there is any fault of system monitoring unit, deal with it according to the instruction in Table
7-3.
Table 7-3 Fault Diagnosis
Description of Phenomena
Countermeasure
Keyboard operation is invalid
Wait the communication interval, or check
whether keyboard contacts are contacted well
Monitoring module is powered off
Check the power cord or connector.
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DUMC-48/50H Embedded Switching Power Supply System
Description of Phenomena
Countermeasure
Communication blackout
Check whether communication cable is connected
well.
Characters on controller LCD are displayed
incompletely or there is a bright side
Change LCD model and option.
Detection data is abnormal
Replace the detection plate
8. Safety Protection Device and Accident Treatment
8.1 Description and Maintenance of Surge Protection Device (SPD)
AC input terminal of DUM-48/50H combined high frequency switching power supply system has
Class C of surge protective capability (standard configuration, it can also be selected as Class B or
B+C). And the monitoring unit can carry out real-time monitoring of surge protective unit. Its surge
protective capability of DC output terminal is 15KA in the nominal value and 25KA in the maximum
value.
When there is any fault of surge protective device, the monitoring unit will alarm and prompt
maintenance personnel to replace it timely.
It is noteworthy for users that maintenance personnel shall check whether surge protective
devices are in good condition before the advent of annual thunderstorm screen.
9. Maintenance and Repair
9.1 Routine Maintenance
The system can work continuously without any interruption. In order to ensure the reliability of
power supply, ensure the routine maintenance necessarily so that the power supply system is in
the best condition.
① Do a good job of cleaning the power supply system and the rectifier module periodically to
prevent any dust or other phenomena.
② Check whether various parameters of the primary power supply system are normal once a
week. If there is any abnormal situation, eliminate it timely. If there is any system alarm, deal with
it timely.
③ After every month or thunderstorm, check whether the surge protective device is invalid. If yes,
replace it timely.
④ Check the fuse state once a month, and prepare some certain number of spare fuses. When
there is any fault, replace it timely.
⑤ Check whether there is any looseness or poor contact of input and output connection
terminals once a month.
⑥ Check whether the input or output wire is in good condition once a month. If there is any
Beijing Dynamic Power Co., Ltd. (DPC)
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DUMC-48/50H Embedded Switching Power Supply System
damage, replace it timely.
⑦ Check whether each circuit breaker is switched on or off flexibly once half a year, and whether
there is any burning or other abnormal situation.
⑧ Battery maintenance shall be implemented according to relevant battery instructions.
9.2 Maintenance and Repair in Operation
In system operation, all controller and power supply modules are plugged and unplugged in charge.
When there is any internal controller maintenance or fault, it is necessary to assemble and
disassemble it. Without any controller, the system can still operate normally, and the battery is in a
float charging state.
(1) Disassembly and installation of controller in system operation:
① Disassembly sequence:
a. Unplug the left and right fixing card device simultaneously from the front fender panel, and roll
out the fender panel from the front panel.
b. Remove the controller slowly from the front.
c. Unplug the power plug from the rear panel of the controller.
d. Unplug all monitoring communication lines and control signal lines from the rear panel of the
controller.
② Installation sequence:
a. Insert all monitoring communication lines and control signal lines one by one into the rear panel
of the controller.
b. Insert the power plug of the controller into the rear panel.
c. Insert the controller slowly from the front into the monitor plug-in box in place.
d. Close the fender panel of the front panel in place. It is OK to send out a click when the clamp
device is fastened on the left and right side.
(2) Disassembly and installation for expanding or replacing the rectifier module:
① Disassembly:
a. Separate the corresponding AC input circuit breaker of rectifier module.
b. Loosen the fastening screws in the front panel of rectifier module with a cross screwdriver.
c. Lift up the handle and pull out the rectifier module slowly from the front.
② Installation:
a. Place AC input circuit breaker of rectifier module in the breaking state (OFF).
b. Lift up the handle, and insert the rectifier module into the corresponding installation position of
rectifier module in frame according to the natural state.
c. Insert the rectifier module evenly and slowly in the end to connect firmly with it, and tighten the
Beijing Dynamic Power Co., Ltd. (DPC)
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DUMC-48/50H Embedded Switching Power Supply System
fastening screws in front panel firmly with a cross screwdriver.
d. Close AC input circuit breaker of rectifier module.
e. After starting the rectifier to a stable state (about 3~8s), observe whether the output voltage,
current and others of rectifier module are normal in controller, whether there is any alarm
information. If not, check it necessarily.
10. Packaging, Transportation and Storage
10.1 Packaging
The whole system is packed according to the components. In packaging, the controller and the
power supply system are packed in integration. The rectifier module is separated and packed
individually. During the transportation process, power equipment shall have a good packaging as
well as waterproof and anti-vibration signs. When transporting equipment to the site, prevent any
rough handling, and avoid any sun or rain. Attention shall be paid to meeting the placement
direction requirements of each section.
10.2 Precaution for Hoisting and Transportation
The dimension of cabinet packing case is shown as follows:
DUMC-48/50H: W×D×H is 620 mm×620 mm×2075 mm.
Please arrange appropriate transportation tools and lifting machinery (such as forklift and so on) in
turn.
During the handling process, take and place it carefully. Do not make it with any severe shock. In
assembly and disassembly, insert the front fork into the bottom floor of machine, lift up the
machine body gently to move it horizontally to the warehouse (or truck). Pay attention to uniform,
balance, and safety to avoid any personnel injury or equipment damage.
In transportation, place it strictly in accordance with the direction indicated on packing box in
order to prevent the devices from being shocked and damaged.
10.3 Storage Condition, Storage Period and Precaution
During the storage of the system, place it in a dry warehouse. Do not expose it to sun or rain. The
placement direction shall meet the requirements of sign on packing box. The storage period is one
year (storage temperature: -40℃～70℃)
11. Others
11.1 Warranty, After-Sales Service Matters and Contact Method
Warranty Issues:
Beijing Dynamic Power Co., Ltd. (DPC) promises solemnly as follows:
Undertake the free warranty of faulty equipment under the normal operating conditions within
the warranty period specified in the contract or agreement.
During the warranty period, DPC shall determine the maintenance or replacement of faulty
Beijing Dynamic Power Co., Ltd. (DPC)
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DUMC-48/50H Embedded Switching Power Supply System
equipment.
Address: No. 8, Xinghuo Road, Science Park, Fengtai District, Beijing
Postal Code: (100070)
Website: www.dpc.com.cn
11.2. Other Matters
Due to continuous update and improvement of products and technology, product features and
performance changes by technical updates are not included in this manual. Reserve the right to
change the parameters without prior notice.
For technical requirements of special order, please refer to the instruction manual and consult with
DPC.
12. Attached Table
12.1 Parameter Setting Instruction
(1) System alarm setting
During the use of equipment, users may reset the system parameters according to the site
situations. For the setting range of alarm parameters, see Table 12-1.
Table 12-1 System Alarm Setting
System Alarm Setting
Name
Default
Value
264V
Scope of Setting
AC
210V～286V
over-voltage
AC
176V
154V～230V
under-voltage
When the setting value of Equalized charging voltage is less than
56.0V, the setting range of DC over-voltage is from Equalized charging
DC
voltage to 58V.
57.0V
over-voltage
When the setting value of Equalized charging voltage is not less than
56.0V, the setting range of DC over-voltage is from Equalized charging
voltage to Equalized charging voltage+1V.
DC
Primary switch-out voltage +1V ~ float charging voltage
47.4V
under-voltage
(2) Operation maintenance setting
For the setting range of system operation maintenance parameters, see Table 12-2.
Table 12-2 Operation Maintenance Setting
Operation Maintenance Setting
Name
Effective power cut time
Scope of Setting
10min
1min～30min
Beijing Dynamic Power Co., Ltd. (DPC)
Default Value
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DUMC-48/50H Embedded Switching Power Supply System
Operation Maintenance Setting
Name
Equalized charging
voltage
Float charging voltage
Charging current limit
Balance and float
conversion
Primary switch-out
voltage
Battery protection
(secondary switch-out)
voltage
Nominal capacity of
Battery ①
Nominal capacity of
Battery ②
Equalized charging cycle
Equalized charging time
Equalized charging
retention
Equalized charging time
limit
Battery imbalance
Reference temperature
Temperature
compensation coefficient
Battery test time
Test termination voltage
Scope of Setting
Float charging voltage ~58.0V (less
than DC over-voltage value)
Battery test termination voltage ~
Equalized charging voltage (and
more than DC under-voltage)
0.01C10～0.25C10 (and more than
balance and float conversion)
0.01C10～Charging current limit
Default Value
55.2V
53.6V
0.1C10
0.01C10
Secondary switch-out
voltage~50V(less than DV
45.2V
under-voltage -1V, and less than
battery test termination voltage -2V)
40V~Primary switch-out voltage
43.2V
0Ah～5000Ah
300Ah
0Ah～5000Ah
300Ah (when connected with 2
groups of battery)
90 days
1h
10min
30 days ~365 days
1h~Equalized charging time
1min～180min
5h~24h (and more than Equalized
charging time)
0.5V～2.0V
25℃, 20℃
1～120mV/℃
10h
2min
48.0V
Baud rate
Local address
Active fault return
Dialing mode
Telephone number ①
Telephone number ②
1min～180min
Primary switch-out voltage +2V ~
float charging voltage
1200, 2400, 4800, 9600
1～255
ON/OFF
Audio/pulse
0～9
0～9
Time setting
From 2000 to 2099
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43
1.0V
25℃
72mV/℃
9600
1
OFF
Audio
01234567899
01234567899
There is a leap year for
treatment. It is necessary to set
it according to the actual
current time.
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DUMC-48/50H Embedded Switching Power Supply System
Operation Maintenance Setting
Name
Recording interval
Scope of Setting
1min～999min
Clear alarm record
Clear operation records
Restore default settings
Only including parameters
Wake-up voltage
48.0V~float charging voltage
Holiday rotation period
5 days ~30 days
Sleep stopping point
Sleep starting point+10%～90%
Sleep starting point
10%~ Sleep stopping point-10%
Minimum online number 1～2
Upper limit of
50℃～80℃
temperature
Lower limit of
-40℃～0℃
temperature
Upper limit of humidity
70%～100%
System switch
ON/OFF
Manual Equalized
ON/OFF
charging
Battery test
ON/OFF
Periodic Equalized
ON/OFF
charging
Periodic test
ON/OFF
Sound switch
ON/OFF
Temperature
ON/OFF
compensation switch
Sleep switch
ON/OFF
Sleep control
Manual/Automatic
12.2 System Fault Description
Default Value
60min
Clear completed alarm records
after operation
Clear all operation records after
operation
After modification, only restore
default values of parameter
setting section but not those of
system setting section
51.2V
7 days
80%
40%
1
65℃
-20℃
90%
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
Automatic
Table 12-3 is various fault description. The current fault state can be seen with a host computer
monitoring software, and there is not any fault history record. Serial No. 1~20 is the fault alarm
setting of dry contact, and Serial No. 21~23 is the non-output of dry contact.
Table 12-3 System Fault List
Serial
No.
Fault Name
Beijing Dynamic Power Co., Ltd. (DPC)
Interpretation
44
Alarm
Type
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Dry
Contact
DUMC-48/50H Embedded Switching Power Supply System
Serial
No.
Alarm
Type
Dry
Contact
Fault Name
Interpretation
1
AC over-voltage
There is an alarm when AC voltage is higher than the
over-voltage setting value. It will restore when AC
voltage is less than the over-voltage - 20V.
General ①
2
AC
under-voltage
There is an alarm when AC voltage is less than the
under-voltage setting value. It will restore when AC
voltage is more than the under-voltage +20V.
General ①
3
AC power cut
There is an alarm when there is AC power cut or the
voltage is less than 50V
Serious
4
AC phase lose
There is an alarm when there is AC three-phase
voltage phase loss alarm (detect it when AC input is
three-phase, and alarm when the single phase is less
than 50V)
General －
5
Lightning
protection fault
There is an alarm when the system SPD fails (when
the system is equipped with SPD)
General －
6
AC shunt
There is an alarm when AC output shunt switch is
switched off (the system is equipped with AC shunt
detection plate)
General －
7
DC over-voltage
There is an alarm when DC voltage is higher than the
over-voltage setting value. It will restore when AC
voltage is less than the over-voltage -0.5V.
Serious
⑤
8
DC under-voltage
There is an alarm when DC voltage is less than the
under-voltage setting value. It will restore when AC
voltage is more than the under-voltage +0.5V.
Serious
⑤
9
Primary
switch-out fault
There is an alarm for open circuit of DC Contact 1.
Serious
⑥
10
Battery
protection
(secondary
switch-out) fault
There is an alarm for open circuit of DC Contact 2.
Serious
③
11
Fuse fault
There is an alarm for the disconnected battery fuse
Serious
④
12
Battery fault
There is an alarm for battery imbalance
General －
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①
DUMC-48/50H Embedded Switching Power Supply System
Serial
No.
Fault Name
Interpretation
Alarm
Type
Dry
Contact
13
DC shunt fault
There is an alarm for DC output shunt fault
Serious
－
14
Module fault
There is a fault of Module XX
Serious
②
15
Door contact
alarm
There is a short circuit alarm. It is effective when
there is any detection of environmental variables.
General －
16
Water immersion
alarm
General －
17
Smoke sensing
alarm
General －
18
Infrared alarm
General －
19
Temperature
alarm
There is a temperature over-limit alarm. It is effective General －
when there is any detection of environmental
variables.
20
Humidity alarm
There is a humidity over-limit alarm. It is effective
when there is any detection of environmental
variables.
General －
21
AC
communication
fault
Communication fault of AC detection unit
General
22
DC
communication
fault
Communication fault of DC detection unit
General
23
Module
communication
fault
Communication fault of Module XX
General
24
System
Over-limit alarm of system temperature
over-temperature
alarm
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General
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