UPS - Compact unit / UPS 2401-2,3 Ah
• Battery-buffered power supply,
incl. housing
Function
Technical Data
Mains power supply:
230 VAC (-15 % / +10 %)
Mains frequency:
47 Hz to 63 Hz
Power consumption:
60 VA, max.
Input current:
0.3 A max
Switch-on current:
35 A / 2 ms
Output voltage:
24 V DC (21.6 … 27.8 V ± 0.4 %)
Nominal output current
(incl. battery charging current):1.6 A max.
Deep discharge safety
and load shedding:
20.4 V DC, ± 0.4 %
Charging end voltage: 27.4 V DC, ± 0.4 % (at 25 °C)
Charging
characteristic line:
I/U DIN 41773-1
Efficiency:
typ. 78%
Contact load
Transistor:30 V DC/10 mA, equipotential-free
semi-conductor contact
Battery type:
lead battery, maintenance-free, 2.3 Ah
Ambient temperature: -5 °C to 40 °C
(observe battery service life)
Storage temperature: -5 °C to 50 °C
Dimensions
with lid (L x W x D):
approx. 204 x 200 x 80 mm
Weight:
approx. 2.8 kg
Housing protection type:IP 30 - sheetmetal, powder-coated,
gray
Mains breaker:
4 A, slow, 250 V, switching capacity:
1,500 A
DC battery circuit breaker:2.5 A slow
EMC:
EN 55011: 2007 threshold class B
Total device:
EN 62040-2 : 2006 threshold class C1
EN 61000-3-2 : 2006
EN 61000-3-3 : 2006
EN 61000-6-2 : 2005
EN 50082-2 :1995
EN 50130-4 :1995+A1: 2002+A2 : 2006
EN 50178 :1998
EN 54-4 :1997+A1: 2002+A2:2006
The battery-buffered DC power supply operates based on the
parallel standby principle. In combination with a lead battery,
it ensures reliable maintenance of the DC power supply for a
defined period during a mains power failure.
We recommend a thorough preliminary design approach with
due consideration to the TGÜ-GWA control centers and horns
which the power supply must be able to fully support as well as
the required buffer period. We would be delighted to assist you
with this.
Displays
The housing contains an LED for maintenance purposes
Standby/operation
normal
LED green (constant)
Battery mode
LED green, short 6 sec. blinking cycle
No battery,
interruption, battery
reverse pol., battery
short-circuit
LED green, lights up in 0.2 sec. cycle
(sensor cycle: 1 min)
Battery impedance too LED green, lights up in 0.6 sec. cycle
high
(sensor cycle: 10 min)
Operation
Approx. 2 seconds after switch-on, the output is released and
supplied to the connected consumers. The batteries are also
charged. The operating mode is indicated by the illuminated
green LED. The first battery test is performed after 60 seconds.
Connecting consumers
Note “+” and “-” polarity when connecting consumers.
The power supply is now operational.
The external power supply switches over to battery mode
during a mains power failure and when the input voltage
drops below minimum.
Gas and CO warning devices | Data sheet No. 31505 | Version 02-2013 | 1 | 4
UPS - Compact unit
Deep discharge safety
Deep discharging can permanently damage batteries. The
battery voltage must not drop below the discharge end voltage
specified by the manufacturer. The external power supply
permanently monitors the battery discharge cycle during a
mains power failure. When the discharge end voltage is reached
consumers are automatically disconnected from the batteries
by load shedding.
Battery swaps
Batteries should be swapped at least every four years. Batteries
should only be swapped by trained staff. Never use batteries
of different types or manufacturers, or new and used batteries
together
Proceed as follows:
Removing batteries:
Battery circuit monitoring
The battery circuit is tested in 60 s intervals (the first test is
performed 60 s after mains power supply was established) to
ensure the buffer capacity of the external power supply. This
test can identify an interruption or high impedance of the
battery circuit.
• Shut the unit down
• Disconnect the electrical connections to the batteries
• Remove batteries
Battery installation:
• Install batteries as described but in reverse order
• Note correct battery polarity
Battery test
A cyclical battery test in 10 minute intervals during mains power
supply mode places a load on the battery while also measuring
the voltage. This test analyzes the battery quality. The battery
test is used to identify significantly aged batteries. In order to
assess the present buffer capacity of the batteries, it is essential
to inspect the batteries manually from time to time.
CAUTION
When connecting batteries ensure that the nominal voltage
and polarity match. Non-compliance entails a risk of severe
burns due to arcing.
Temperature tracking
Lead batteries have a temperature coefficient of approx. – 3 mV
per °C and cell. The charging voltage of the power supply is tracked with an integrated temperature sensor to maintain an ideal
charging status of the batteries. The operating temperature of the
batteries should not exceed 20 °C to achieve a satisfactory battery
service life. Higher temperatures result in a drastic reduction of
the service/useful life length
NOTE
Ensure that batteries are properly secured after installation!
Service
The buffer capacity of the batteries should be inspected in
regular intervals of 3 to 6 months to ensure the buffer capacity
of the power supply.
CAUTION
Protect or insulate the poles when connecting batteries.
Bridging entails a risk of severe burns due to arcing or redhot components.
NOTE
Old batteries must be disposed of in an environmentally
compatible manner!
Decommissioning
Decommissioning is performed by disconnecting the mains
power supply. To avoid the resulting buffering, the battery circuit must be interrupted by removing the battery breaker. The
„Standby“ LED stops blinking.
Battery testing
Force battery operating mode by switching off the mains power
supply. The batteries must maintain the required time gap
under specified conditions. The external power supply automatically shuts down when the deep discharge limit has been
reached. The housing must be cleaned once annually depending on the level of contamination.
2 | 4 | Gas and CO warning devices | Data sheet No. 31505 | Version 02-2013 NOTE
Never disconnect electrical connections during operation!
Never install electrical connections during operation!
Always disconnect power first.
UPS - Compact unit
Installation and electrical
connection
All work (such as installation, electrical connection, startup,
operation, and maintenance) must only be performed by sufficiently qualified tradesmen. The respectively applicable local
rules and regulations (e.g. national building codes, electrical/
VDE regulations, etc.) must be observed. Installers and operating entities are required to sufficiently familiarize themselves
before startup. Read the product description before operating
the equipment. Verify that the product can be used for the
relevant application without restrictions. We are not liable for
printing errors and changes after printing. Appropriate use
implies compliance with operating and installation instructions.
We are not liable for losses due to inappropriate use. Unauthorized or inappropriate manipulations or modifications of the
device render the operating permit, the product warranty and
warranty claims null and void.
Terminal
Mains connection
“Mains”
L1, N,
DC output (consumers)
Ua
Lead battery
Ub
Message contact Bat OK / Mains OK
+ Fault, - Fault
Anschluss Akkus
+
Batt.Relais
AC-DC Converter
230V/24V 1,6A
CAUTION
When connecting batteries ensure that the nominal voltage
and polarity match. Non-compliance entails a risk of severe
burns due to arcing.
NOTE
Observe ambient temperature of -5 °C to 40 °C for the batteries. Only operate the device in this range.
Ua
N
DANGER
The device is prepared for protection level I (protective
ground). Signal ground must be connected. In case of
non-compliance, uninsulated parts can carry live voltage
during a malfunction. This presents a deadly hazard due to
electrical shock.
CAUTION
Protect or insulate the poles when connecting batteries.
Bridging entails a risk of severe burns due to arcing or redhot components.
Connection
L1
The external power supply must be connected to an electrical
circuit with a dedicated, specially marked breaker (16 A).
Only one other breaker must be used from this breaker to the
low-voltage feed-in point of the mains electrical grid (building
distribution panel).
Steps must be taken to ensure that switching off other devices
does not interrupt the electrical circuit to the external power
supply.
DANGER
The battery voltage must match the rated voltage of the
charging rectifiers!
Never reverse the polarity of the batteries; never short-circuit
the batteries! Non-compliance entails a risk of severe burns
due to arcing or red-hot components.
Ub
+
-
Fault
+
-
µP
Netz - Mains OK
Bat OK
30V DC/
10 mA
The batteries are installed in the housing and connected with
the included battery cable. The batteries are connected to
terminals “Ub”.
Mains power supply connection
Compare the mains voltage on the distribution panel with the
technical specifications of the external power supply.
Disconnect the mains power supply and secure against switchon by others.
Insert the disconnected mains cable into the housing and
connect to the specified mains connection terminals while
observing the mains phase.
Gas and CO warning devices | Data sheet No. 31505 | Version 02-2013 | 3 | 4
UPS - Compact unit
Startup
The power supply is switched on by supplying the mains power
supply (230 V AC).
DANGER
Verify the correct connections before switching on for the
first time.
Only install electrical connections with power
disconnected.
Non-compliance can result in contact with live components. This presents a deadly hazard due to electrical shock.
Dimensions
204,00
86,00
3,50
4,20
5,00
86,00
Gewinde
M3
160,00
200,00
Installation height: 204 mm
Installation width: 200 mm
Installation depth: 80 mm
Oppermann Regelgeräte GmbH | Im Spitzhau 1 | 70771 Leinfelden-Echterdingen, Germany
Phone +49 711 72723560 | Fax +49 711 7280527 | info@oppermann-regelgeraete.de | www.oppermann-regelgeraete.de
4 | 4 | Gas and CO warning devices | Data sheet No. 31505 | Version 02-2013 Specifications subject to change.