AC Power
For Business-Critical Continuity™
Liebert® NXL™ Power-Tie Controls
Installation Manual
CONTACTING EMERSON NETWORK POWER FOR SUPPORT
Contact Emerson Network Power Liebert Services for information or repair service in the United
States at 1-800-LIEBERT (1-800-543-2378).
For repair or maintenance service outside the 48 contiguous United States, contact Liebert Services,
if available in your area. For areas not covered by Liebert Services, the authorized distributor is
responsible for providing qualified, factory-authorized service.
Have the following information available before calling Liebert Services:
Part Numbers: ________________________________________________________________
Serial Numbers: _______________________________________________________________
kVA Rating: __________________________________________________________________
Date Purchased: _______________________________________________________________
Date Installed: ________________________________________________________________
Location: _____________________________________________________________________
Input Voltage/Frequency: ______________________________________________________
Output Voltage/Frequency: _____________________________________________________
Battery Reserve Time: _________________________________________________________
Product Warranty Registration
To register for warranty protection, visit the Service and Support section of our Web site at:
www.liebert.com
Click on Product Registration and fill out the form.
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.0
MECHANICAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2
Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.0
CONTROL CONNECTIONS AND COMMUNICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2.1
Control Cable and Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1.1
Programmable Relay Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2
Inter-Module Control wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.0
INSTALLATION DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.0
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
i
FIGURES
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
External Interface Board connections layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Breaker Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Voltage and Current Sensing Terminal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Control wiring, Programmable Relay Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Programmable relay board dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Control wiring layout for Liebert NXL Power-Tie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Liebert NXL Power-Tie System #1 layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Liebert NXL Power-Tie System #2 or #3 layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Liebert NXL Power-Tie control wiring for single system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
TABLES
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Table 9
Table 10
Table 11
Table 12
Table 13
Table 14
Table 15
Table 16
Table 17
Table 18
Programmable Relay Board pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Cable group #22A - from SIB breaker interface board (BIB) to SIB breaker . . . . . . . . . . . . . . . . . 7
Cable group #22B - from SIB breaker interface board (BIB) to breaker motor operator
(optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cable group #23A - from tie breaker interface board (BIB) to tie breaker . . . . . . . . . . . . . . . . . . . 7
Cable group #23B - from tie breaker interface board (BIB) to breaker motor operator
(optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cable group #24A - from MBB breaker interface board (BIB) to MBB breaker . . . . . . . . . . . . . . . 7
Cable group #24B - from MBB breaker interface board (BIB) to breaker motor operator
(optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Cable group #25A - from MIB breaker interface board (BIB) to MIB breaker . . . . . . . . . . . . . . . . 8
Cable group #25B - from MIB breaker interface board (BIB) to breaker motor operator
(optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Cable group #26A - from LBB breaker interface board (BIB) to LBB breaker . . . . . . . . . . . . . . . . 8
Cable group #27A - parallel from SCC/UPS inter-module communication board to
Liebert NXL Power-Tie inter-module communication board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Cable group #27B - redundant parallel from SCC/UPS inter-module communication
board to Liebert NXL Power-Tie inter-module communication board. . . . . . . . . . . . . . . . . . . . . . . 9
Cable group #28A - parallel from Liebert NXL Power-Tie inter-module communication
board to next Liebert NXL Power-Tie inter-module communication board . . . . . . . . . . . . . . . . . . 9
Cable group #28B - redundant parallel Liebert NXL Power-Tie inter-module
communication board to next Liebert NXL Power-Tie inter-module communication
board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Cable group #29A - from MBB breaker interface board to SKRU interface . . . . . . . . . . . . . . . . . . 9
Cable group #29B - from MBB breaker interface board to SKRU interface . . . . . . . . . . . . . . . . . . 9
Cable group #32 - from Liebert NXL Power-Tie control terminal block to voltage and
current sense points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Liebert NXL Power-Tie Control specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
ii
Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation of your
Liebert NXL Power-Tie Controls. Read this manual thoroughly, paying special attention to the sections that apply to your installation, before working with the unit. Retain this manual for use by
installing personnel.
! WARNING
Risk of electrical shock. Can cause personal injury or death.
Only properly trained and qualified personnel wearing appropriate safety headgear, gloves,
shoes and glasses should be involved in installing the modules or preparing the modules for
installation. When performing maintenance with any part of the equipment under power,
service personnel and test equipment should be standing on rubber mats.
In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers or
those approved for use in fighting electrical fires.
Extreme caution is required when performing installation and maintenance.
Special safety precautions are required for procedures involving handling, installation and
maintenance of the UPS system. Observe all safety precautions in this manual before
handling or installing the module. Observe all precautions in the Operation and Maintenance
Manual before as well as during performance of all maintenance procedures.
! WARNING
Risk of electrical shock and fire. Can cause equipment damage, personal injury or death.
Under typical operation and with all doors closed, only normal safety precautions are
necessary. The area around the system should be kept free of puddles of water, excess
moisture and debris.
Only test equipment designed for troubleshooting should be used. This is particularly true for
oscilloscopes. Always check with an AC voltmeter to ensure safety before making contact or
using tools. Even when the power is turned Off, dangerously high potential electric charges
may exist at the capacitor banks.
All wiring must be installed by a properly trained and qualified electrician. All power and
control wiring must comply with all applicable national, state and local codes.
One person should never work alone, even if all power is disconnected from the equipment. A
second person should be standing by to assist and to summon help in case of an accident.
NOTE
Materials sold hereunder cannot be used in the patient vicinity (e.g., use where UL, cUL or IEC
60601-1 is required). Medical applications, such as invasive procedures and electrical lifesupport equipment, are subject to additional terms and conditions.
NOTICE
This unit complies with the limits for a Class A digital device, pursuant to Part 15 Subpart J
of the FCC rules. These limits provide reasonable protection against harmful interference in a
commercial environment. This unit generates, uses and radiates radio frequency energy and,
if not installed and used in accordance with this instruction manual, may cause harmful
interference to radio communications. Operation of this unit in a residential area may cause
harmful interference that the user must correct at his own expense.
Liebert® NXL™ Power-Tie Controls
1
Mechanical Installation
1.0
MECHANICAL INSTALLATION
1.1
Introduction
The Liebert NXL Switchgear provides continuous, high-quality AC power to your business-critical
equipment, such as telecommunication and data processing equipment. Liebert NXL UPSs will supply power that is free of the disturbances and variations in voltage and frequency common to utility
power, which is subject to brownouts, blackouts, surges and sags.
The Liebert NXL Power-Tie system provides manually initiated, uninterrupted transfers of a critical
load bus between the two UPS systems.
This topology permits one UPS and its associated distribution system to be shut down for maintenance while the load continues to be supplied by another UPS, without the necessity of transferring
the load to bypass during shutdown or restart of the UPS being maintained.
1.2
Preliminary Checks
This chapter is a guide to general procedures and practices that should be observed by the installing
personnel. The particular conditions of each site will determine the applicability of such procedures.
Before installing the Liebert NXL Power-Tie, please carry out the following preliminary checks:
• Examine the Liebert NXL Power-Tie for transit damage, both internally and externally. Report
any damage to the shipper immediately.
• Verify that the correct equipment is being installed. The Liebert NXL Power-Tie cabinet has an
identification tag on the interior doors listing the type, size and main calibration parameters of
the UPS.
• Verify that the UPS room satisfies the environmental conditions stipulated in the equipment
specification, paying particular attention to the ambient temperature and air exchange system.
2
Liebert® NXL™ Power-Tie Controls
Control Connections and Communication
2.0
CONTROL CONNECTIONS AND COMMUNICATION
2.1
Control Cable and Communication
Figure 1
External Interface Board connections layout
MAINT BYP
ENABLE
TB0821
ACT FILT
TB035
CNTL
P0831
P66C
P99C
P0832
AUX S PARE
TEMP
P0801
BATT GND
FLT
TB0815
EXTERNA L
CAN
MOB
TB0811
MIB
TB0830
ACT FILT
STATUS
TB0810
TB0816
RIB
ON GEN
P0808
TB0823
TB0829
EPO
STATUS
OPT
PS
TB1154B
EXTERNA L
CAN
INT BATT
CAN
TB0819
MBB
BYP CNTL
TB0817
BIB
RECT
CNTL
J5
TB0820
TB0818
REPO
FORM C
KEY
STATUS
INV
CNTRLN
REPO
J4
BATT MTR TB1156
OP
TB0826
TB0824
Figure 2
TB0813
TB0812
TB0825
LBS VO LTAGE
TB1154A
EXT BATT
CAN
Breaker Interface Board
2
3
4
T B1150
1
1
TB 1154
1
2
TB 1123
BREAKER
INTERFACE BOARD
BIB
3
4
2
3
TB 1158
TB 1151
1
2
3
6
7
48VDC Shunt Trip
5
1
4
5
Form-C Aux
Contacts
2
6
7
8
1
P 1155
Liebert® NXL™ Power-Tie Controls
2
Optional Motor
Operator
4
5
CAUTION:
HAZARDOUS
VOLTAGES
3
Control Connections and Communication
Figure 3
Voltage and Current Sensing Terminal
TB1
TB2
TB3
Note 1
TB4
CT SHORTING TABLE
TB5
TB6
TB7
Critical Load Bus, Phase A CT X1
TB8
Critical Load Bus, Phase A CT X2
TB9
Critical Load Bus, Phase B CT X1
TB10
Critical Load Bus, Phase B CT X2
TB11
Critical Load Bus, Phase C CT X1
TB12
Critical Load Bus, Phase C CT X2
TB13
UPS Source, Phase A CT X1
TB14
UPS Source, Phase A CT X2
TB15
UPS Source, Phase B CT X1
TB16
UPS Source, Phase B CT X2
TB17
UPS Source, Phase C CT X1
TB18
UPS Source, Phase C CT X2
TB19
TIE Bus Voltage, Phase A
TB20
TIE Bus Voltage, Phase B
TB21
TIE Bus Voltage, Phase C
TB22
Neutral
TB23
Critical Load Bus Voltage, Phase A
TB24
Critical Load Bus Voltage, Phase B
TB25
Critical Load Bus Voltage, Phase C
TB26
Neutral
TB27
Bypass Source Voltage, Phase A
TB28
Bypass Source Voltage, Phase B
TB29
Bypass Source Voltage, Phase C
TB30
Neutral
TB31
1
Future
TB32
1
Future
TB33
1
Future
TB34
1
TB35
Future
UPS Source Voltage, Phase A
TB36
UPS Source Voltage, Phase B
TB37
UPS Source Voltage, Phase C
TB38
Neutral
F1
8A
F2
8A
F3
8A
F4
8A
F5
8A
F6
UPS Source Power Supply
, Phase A
TB#
SHORTS CT
TB1
TB2
TB3
TB4
TB5
TB6
LOAD I PHA
LOAD I PHB
LOAD I PHC
UPS I PHA
UPS I PHB
UPS I PHC
CAUTION:
TB19–TB38 and F1-F6 connected to
HAZARDOUS VOLTAGES
NOTES:
1. TB1–TB6 are shorting switches . During normal operation , these
devices are open . When button is depressed and turned 90˚ (locked
position) the associated CT is shorted. Reference Table “CT
SHORTING TABLE” on this sheet.
2. TB19-TB38 are disconnect devices . During normal operation these
devices are closed. All external wiring into TB 19-TB38 must be
fused at the source.
UPS Source Power Supply
, Phase B
Bypass Source Power Supply
, Phase A
Bypass Source Power Supply
, Phase B
Optional Power Supply
Optional Power Supply
8A
4
Liebert® NXL™ Power-Tie Controls
Control Connections and Communication
2.1.1
Programmable Relay Board
The Programmable Relay Board (PRB) provides a means to trigger an external device when an event
occurs in the Liebert NXL. Each PRB has eight channels. Each channel has Form-C dry contacts
rated at 1A @ 30VDC or 125VAC @ 0.45A.
Any alarm/event can be programmed to any channel or channels. Up to four (4) events can be
programmed to a relay. If multiple events are grouped to one relay, group the events logically to
simplify troubleshooting when an event is triggered. The same alarm/event can be programmed to
more than one channel. Up to two Programmable Relay Boards can be installed in the Liebert NXL
for a total of 16 channels. Programming is performed through the HMI touchscreen display.
NOTE
Up to two (2) PRB’s can be installed in the Liebert NXL.
Figure 4
Control wiring, Programmable Relay Board
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
J71
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
J72
1 2 3
1 2 3 4 5 6 7 8 9 10111213141516
J73
J74
1.
2.
3.
4.
5.
6.
Customer control wiring connection points are terminals 1 through 15. (Pin 16 not used on J71, J72, and
J73.)
Programmable Relay Board option includes eight signal channels with two Form-C dry contacts per
channel (see Table 1).
All control wiring (by others) must be run separate from power wiring. Control wiring runs should not be
combined in the same conduit.
Contact ratings: 1A @ 30VDC or 125VAC @ 0.45A
Maximum cable length 500 ft. (152m) with #16AWG and flexible stranded cable.
All wiring must be in accordance with national and local electrical codes.
Table 1
Terminal
Block
Programmable Relay Board pinout
Channel
CH1
J71
CH2
CH3
J72
CH4
CH5
CH6
TB3
J74
CH7
CH8
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
Pin No.
Common
Normally
Closed
Normally
Open
1-3
4-6
7-9
10-12
13-15
1-3
4-6
7-9
10-12
13-15
1-3
4-6
7-9
10-12
13-15
1-3
1
4
7
10
13
1
4
7
10
13
1
4
7
10
13
1
2
5
8
11
14
2
5
8
11
14
2
5
8
11
14
2
3
6
9
12
15
3
6
9
12
15
3
6
9
12
15
3
Note: Pin 16 not used on J71, J72, and J73.
Liebert® NXL™ Power-Tie Controls
5
Control Connections and Communication
Configuring the Programmable Relay Board Settings
1. Press Internal Option Settings from the Config menu.
2. Press which Programmable Relay Board will be configured. The Programmable Relay Board
dialog box is displayed.
3. Press the Relay channel
4. Press up to four (4) events. Selected events will show up under Relay 1 Assignment.
NOTE
To deselect an event, click on the event.
5. Repeat Steps 3 and 4 for each relay.
6. Press SAVE to keep the settings.
Figure 5
Programmable relay board dialog box
• Assignment—0 to 4 event (default: 0)
• Delay, sec—0 to 99.9 (default: 0)
6
Liebert® NXL™ Power-Tie Controls
Control Connections and Communication
2.2
Inter-Module Control wiring
NOTE
Unless otherwise noted, use copper or aluminum conductors suitable for at least 75°C.
Table 2
Cable group #22A - from SIB breaker interface board (BIB) to SIB breaker
Terminal Designation
From
To
TB1150-3
TB1150-4
Remote Breaker
Contacts
TB1150-5
Table 3
SIB AUX CONTACT, CLOSED = CB IS OPEN
SIB AUX CONTACT, CLOSED = CB IS CLOSED
SIB 48VDC TRIP COIL (-)
Cable group #22B - from SIB breaker interface board (BIB) to breaker motor operator
(optional)
From
To
TB1151-1
Remote Breaker
Motor Operator
Contacts
TB1151-5
Signal Name
AC LINE
MOTOR OPERATOR CLOSE
From
Signal Name
To
TB1150-1
TB1150-2
TB1150-3
TB1150-4
#14-22AWG
500FT (150m)
Maximum
Length
TIE AUX CONTACT COMMON
Remote Breaker
Contacts
TB1150-5
TIE AUX CONTACT, CLOSED = CB IS OPEN
TIE AUX CONTACT, CLOSED = CB IS CLOSED
TIE 48VDC TRIP COIL (-)
#14-22AWG
500FT (150m)
TIE 48VDC TRIP COIL (+)
Cable group #23B - from tie breaker interface board (BIB) to breaker motor operator
(optional)
Terminal Designation
From
To
TB1151-1
Remote
Breaker Motor
Operator
Contacts
TB1151-5
Table 6
Maximum
Length
Cable group #23A - from tie breaker interface board (BIB) to tie breaker
Terminal Designation
Table 5
#14-22AWG
500FT (150m)
SIB 48VDC TRIP COIL (+)
Terminal Designation
Table 4
Maximum
Length
SIB AUX CONTACT COMMON
TB1150-1
TB1150-2
Signal Name
Signal Name
AC LINE
MOTOR OPERATOR CLOSE
Maximum
Length
#14-22AWG
500FT (150m)
Cable group #24A - from MBB breaker interface board (BIB) to MBB breaker
Terminal Designation
From
Signal Name
To
TB1150-1
MBB AUX CONTACT COMMON
TB1150-2
MBB AUX CONTACT, CLOSED = CB IS OPEN
TB1150-3
TB1150-4
Remote
Breaker
Contacts
TB1150-5
Liebert® NXL™ Power-Tie Controls
MBB AUX CONTACT, CLOSED = CB IS CLOSED
MBB 48VDC TRIP COIL (-)
MBB 48VDC TRIP COIL (+)
7
Maximum
Length
#14-22AWG
500FT (150m)
Control Connections and Communication
Table 7
Cable group #24B - from MBB breaker interface board (BIB) to breaker motor operator
(optional)
Terminal Designation
From
To
TB1151-1
Remote Breaker Motor
Operator Contacts
TB1151-5
Table 8
AC LINE
Cable group #25A - from MIB breaker interface board (BIB) to MIB breaker
TB1150-3
TB1150-4
MIB AUX CONTACT COMMON
Remote Breaker
Contacts
TB1150-5
Table 9
MIB AUX CONTACT, CLOSED = CB IS OPEN
MIB AUX CONTACT, CLOSED = CB IS CLOSED
MIB 48VDC TRIP COIL (-)
Cable group #25B - from MIB breaker interface board (BIB) to breaker motor operator
(optional)
From
To
TB1151-1
Remote Breaker Motor
Operator Contacts
Table 10
TB1150-1
TB1150-2
TB1150-3
Table 11
Maximum
Length
Signal Name
AC LINE
#14-22AWG
500FT (150m)
MOTOR OPERATOR CLOSE
Cable group #26A - from LBB breaker interface board (BIB) to LBB breaker
Terminal Designation
From
#14-22AWG
500FT (150m)
MIB 48VDC TRIP COIL (+)
Terminal Designation
TB1151-5
Maximum
Length
Signal Name
To
TB1150-1
TB1150-2
#14-22AWG
500FT (150m)
MOTOR OPERATOR CLOSE
Terminal Designation
From
Maximum
Length
Signal Name
Remote Breaker
Contacts
Maximum
Length
Signal Name
To
LBB AUX CONTACT COMMON
LBB AUX CONTACT, CLOSED = CB IS OPEN
LBB AUX CONTACT, CLOSED = CB IS CLOSED
#14-22AWG
500FT (150m)
Cable group #27A - parallel from SCC/UPS inter-module communication board to
Liebert NXL Power-Tie inter-module communication board
Terminal Designation
Signal Name
From
To
P3101-3
P3101-3
SYSTEM CAN +24V
P3101-4
P3101-4
SYSTEM CAN COMMON
P3101-7
P3101-7
GROUND
P3101-14
P3101-14
GROUND
P3101-12
P3101-12
LBS SYNCH CAN +24V
P3101-13
P3101-13
LBS SYNCH CAN COMMON
Maximum
Length
#18AWG
1000FT (300m)
Note: Must use Belden 8106 or (3) Belden 8102; outer shield drain wire must be connected to pins 7 and 14 at each connector.
8
Liebert® NXL™ Power-Tie Controls
Control Connections and Communication
Table 12
Cable group #27B - redundant parallel from SCC/UPS inter-module communication
board to Liebert NXL Power-Tie inter-module communication board
Terminal Designation
Maximum
Length
Signal Name
From
To
P3103-3
P3103-3
REDUNDANT SYSTEM CAN +24V
P3103-4
P3103-4
REDUNDANT SYSTEM CAN COMMON
P3103-7
P3103-7
GROUND
P3103-14
P3103-14
GROUND
P3103-12
P3103-12
REDUNDANT LBS SYNCH CAN +24V
P3103-13
P3103-13
REDUNDANT LBS SYNCH CAN COMMON
#18AWG
1000FT (300m)
Note: Must use Belden 8106 or (3) Belden 8102; outer shield drain wire must be connected to pins 7 and 14 at each connector.
Table 13
Cable group #28A - parallel from Liebert NXL Power-Tie inter-module communication
board to next Liebert NXL Power-Tie inter-module communication board
Terminal Designation
Maximum
Length
Signal Name
From
To
P3101-1
P3101-1
SHARE CAN +24V
P3101-2
P3101-2
SHARE CAN COMMON
P3101-7
P3101-7
GROUND
P3101-14
P3101-14
GROUND
#18AWG
1000FT (300m)
P3101-8
P3101-8
PWM SYNCH CAN +24V
P3101-9
P3101-9
PWM SYNCH CAN COMMON
Note: Must use Belden 8106 or (3) Belden 8102; outer shield drain wire must be connected to pins 7 and 14 at each connector.
Table 14
Cable group #28B - redundant parallel Liebert NXL Power-Tie inter-module
communication board to next Liebert NXL Power-Tie inter-module communication
board
Terminal Designation
From
To
P3103-3
P3103-3
Maximum
Length
Signal Name
SHARE CAN +24V
P3103-4
P3103-4
SHARE CAN COMMON
P3103-7
P3103-7
GROUND
P3103-14
P3103-14
GROUND
P3103-12
P3103-12
PWM SYNCH CAN +24V
P3103-13
P3103-13
PWM SYNCH CAN COMMON
#18AWG
1000FT (300m)
Note: Must use Belden 8106 or (3) Belden 8102; outer shield drain wire must be connected to pins 7 and 14 at each connector.
Table 15
Cable group #29A - from MBB breaker interface board to SKRU interface
Terminal Designation
From
TB1158-6
TB1158-4
TB1158-5
Table 16
SKRU
CONTACTS
Maximum
Length
Signal Name
To
KEY STATUS SWITCH, CLOSED = KEY RELEASED
KEY STATUS SWITCH, COMMON
KEY STATUS SWITCH, CLOSED = KEY CAPTIVE
#14-22AWG
500FT (150m)
Cable group #29B - from MBB breaker interface board to SKRU interface
Terminal Designation
From
To
TB1151-1
SKRU
CONTACTS
TB1151-5
Liebert® NXL™ Power-Tie Controls
Signal Name
CLOSED = ENABLE SKRU
MAINTENANCE BYPASS CABINET, COMMON
9
Maximum
Length
#14-22AWG
164FT (50m)
Control Connections and Communication
Table 17
Cable group #32 - from Liebert NXL Power-Tie control terminal block to voltage and
current sense points
Terminal Designation
From
Maximum
Length
Signal Name
To
TB7
Critical Load Bus, Phase A CT X1
TB8
Critical Load Bus, Phase A CT X2
TB9
Critical Load Bus, Phase B CT X1
TB10
Critical Load Bus, Phase B CT X2
TB11
Critical Load Bus, Phase C CT X1
TB12
Critical Load Bus, Phase C CT X2
TB13
UPS SOURCE, Phase A CT X1
TB14
UPS SOURCE, Phase A CT X2
TB15
UPS SOURCE, Phase B CT X1
TB16
UPS SOURCE, Phase B CT X2
TB17
UPS SOURCE, Phase C CT X1
TB18
UPS SOURCE, Phase C CT X2
TB19
TIE BUS VOLTAGE, PHASE A
TB20
TIE BUS VOLTAGE, PHASE B
TB21
TIE BUS VOLTAGE, PHASE C
TB22
NEUTRAL
TB23
CRITICAL LOAD BUS VOLTAGE, PHASE A
TB24
TB25
TB26
TB27
VOLTAGE &
CURRENT
SENSE
POINTS
CRITICAL LOAD BUS VOLTAGE, PHASE B
CRITICAL LOAD BUS VOLTAGE, PHASE C
NEUTRAL
22-12AWG/
500FT (150m)
BYPASS SOURCE VOLTAGE, PHASE A
TB28
BYPASS SOURCE VOLTAGE, PHASE B
TB29
BYPASS SOURCE VOLTAGE, PHASE C
TB30
NEUTRAL
TB31
FUTURE
TB32
FUTURE
TB33
FUTURE
TB34
FUTURE
TB35
UPS SOURCE VOLTAGE, PHASE A
TB36
UPS SOURCE VOLTAGE, PHASE B
TB37
UPS SOURCE VOLTAGE, PHASE C
TB38
NEUTRAL
F1
UPS Source Power Supply, Phase A
F2
UPS Source Power Supply, Phase B
F3
Bypass Source Power Supply, Phase A
F4
Bypass Source Power Supply, Phase B
F5
Optional Power Supply
F6
Optional Power Supply
10
Liebert® NXL™ Power-Tie Controls
Installation Drawings
3.0
INSTALLATION DRAWINGS
Figure 6
Control wiring layout for Liebert NXL Power-Tie
REPO
CG # 22
CG #1
CG # 23
CG # 24
CG # 22
Power Tie 3
Controls
CG # 23
CG # 24
System #1
Power Tie 1
Controls
CG # 25
CG # 26
CG # 27
CG # 29
CG # 26
CG # 32
CG # 27
CG # 29
CG
#28
CG
#28
CG # 32
CG # 22
CG # 23
CG # 24
System #2
CG # 25
CG # 25
Power Tie 2
Controls
CG # 26
CG # 27
CG # 29
CG # 32
Liebert® NXL™ Power-Tie Controls
11
System #3
Installation Drawings
Figure 7
Liebert NXL Power-Tie System #1 layout
Liebert
Intellislot
Ports
Voltage and
Current Sensor
Terminal Blocks
Breaker Interface
Board (SIB)
Breaker Interface
Board (Tie)
External
Interface
Board
(EIB
Breaker Interface
Board (MBB, Optional)
Breaker Interface
Board (MIB, Optional)
Breaker Interface
Board (LBB, Optional)
Option Box
FRONT VIEW
To Associated
SM/MM System
High Voltage
(External)
To Associated
SM/MM System
High
Voltage
(External)
Low Voltage
(External)
Low Voltage
(External)
High Voltage
(External)
To Associated
SM/MM System
TOP VIEW
BOTTOM VIEW
12
539652
Page 1, Rev. 3
Liebert® NXL™ Power-Tie Controls
Installation Drawings
Figure 8
Liebert NXL Power-Tie System #2 or #3 layout
Voltage and
Current Sensor
Terminal Blocks
Breaker Interface
Board (SIB)
Breaker Interface
Board (Tie)
Breaker Interface
Board (MBB, Optional)
Breaker Interface
Board (MIB, Optional)
Breaker Interface
Board (LBB, Optional)
Option Box
FRONT VIEW
To Associated
SM/MM System
High Voltage
(External)
To Associated
SM/MM System
Low Voltage
(External)
High
Voltage
(External)
Low Voltage
(External)
High Voltage
(External)
To Associated
SM/MM System
BOTTOM VIEW
TOP VIEW
Liebert® NXL™ Power-Tie Controls
539652
Pg. 02, Rev. 03
13
To MIB Breaker
Interface Board
T o SIB Breaker
I nterface Board
14
NEUTRAL
BYPASS SOURCE, ΦC
BYPASS SOURCE, ΦB
BYPASS SOURCE, ΦA
To MBB Breaker
Interface Board
STATUS CLOSED 1
STATUS OPEN 1
ST ATUS COM 1
SHUNT TRIP
SHUNT TRIP
CLO SE
120VAC
STATUS CLOSED 1
STATUS OPEN 1
ST ATUS COM 1
SHUNT TRIP
SHUNT TRIP
CLO SE
120VAC
STATUS CLOSED 1
STATUS OPEN 1
ST ATUS COM 1
SHUNT TRIP
SHUNT TRIP
CLO SE
120VAC
UPS Source, Phase C CT X2
UPS Source, Phase C CT X1
UPS Sourc e, Phase B CT X2
UPS Sourc e, Phase B CT X1
UPS Sourc e, Phase A CT X2
UPS Sourc e, Phase A CT X1
SIB
ST
MIB
48VDC
ST
CLOSE
COIL
MBB
MAINTENANCE BYPASS
BREAKER
48VDC
CLOSE
COIL
MAINTENANCE ISOLATION
BREAKER
48VDC
ST
CLOSE
COIL
SYSTEM ISOLATION
BREAKER
NEUTRAL
Bypass Source Power Supply, Phase B
Bypass Source Power Supply, Phase A
Bypass Source Voltage, Phase C
Bypass Source Voltage, Phase B
Bypass Source Voltage, Phase A
To Tie Breaker
Interface Board
UPS Source Power Supply, Phase B
UPS Source Power Supply, Phase A
UPS Source Voltage, Phase C
UPS Source Voltage, Phase B
UPS Sourc e Voltage, Phase A
48VDC
ST
CLOSE
COIL
Critical Load Bus Voltage, Phase C
Critical Load Bus Voltage, Phase B
Critical Load Bus Voltage, Phase A
Critical Load Bus, Phas e C CT X2
Critical Load Bus, Phas e C CT X1
Critical Load Bus, Phas e B CT X2
Critical Load Bus, Phas e B CT X1
Critical Load Bus, Phas e A CT X2
ST
TIE
LBB
TIE BREAKER
48VDC
CLOSE
COIL
LOAD BANK BREAKER
Critical Load Bus, Phas e A CT X1
STATU S CLOSED 1
STATUS OPEN 1
STATUS COM 1
SHUNT T RIP
SHUNT T RIP
CLOSE
120VAC
STATU S CLOSED 1
STATUS OPEN 1
STATUS COM 1
SHUNT T RIP
SHUNT T RIP
CLOSE
120VAC
TIE Bus Voltage, Phase A
TIE Bus Voltage, Phase C
TIE Bus Voltage, Phase B
NEUTRAL
CRITICAL LOAD BUS, ΦC
CRITICAL LOAD BUS, ΦB
CRITICAL LOAD BUS, ΦA
NEUTRAL
TIE BUS, ΦC
TIE BUS, ΦB
TIE BUS, ΦA
NEUTRAL
LOAD BANK, ΦC
LOAD BANK, ΦB
LOAD BANK, ΦA
Figure 9
1. Star Power Tie configuration shown.
2. Motor operator and shunt trip
connections shown for all circuit
breakers, although MIB, MBB and
LBB may be manually operated types
in some systems.
NEUTRAL
UPS SOURCE, ΦC
UPS SOURCE, ΦB
UPS SOURCE, ΦA
Installation Drawings
Liebert NXL Power-Tie control wiring for single system
Liebert® NXL™ Power-Tie Controls
Specifications
4.0
SPECIFICATIONS
Table 18
Liebert NXL Power-Tie Control specifications
Environmental Parameters
Storage Temperature
Range, °F (°C)
-13 to 158 (-25 to 70)
Operating Temperature
Range, °F (°C)
Relative Humidity
Maximum Altitude Above
mean sea level, ft (m)
Liebert® NXL™ Power-Tie Controls
32 to 104 (0 to 40) (UPS)
95% or less Non-Condensing
(Operating and Non-Operating)
4920 (1500) (as per IEC 62040/3) - 1% Max kW
derate / 328 rise between 4921-9842
(100m rise between 1500-3000m)
15
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Technical Support / Service
Web Site
www.liebert.com
Monitoring
liebert.monitoring@emerson.com
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Locations
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