Vertiv
| Liebert
®
EXM
™
EBC
™
480V User Manual |
27
Figure 12 Alber
®
battery cabinet monitoring assembly diagram
2.9.1
Accessory Fuses and Back-Feed Breaker Wiring
Two fuse blocks provide power for the back-feed breakers (standard) and the Alber BDSUi
™
(optional). The fuse blocks are at the lower right of the I/O panel on the front of the Liebert EXM
UPS.
The back-feed breaker fuse block provides 120V nominal provided from the UPS output (L-N)
and the fuse is rated for 8 amps. The back-feed breaker wiring is on the bypass static switch
assembly.
Table 8
Alber UXCM rear panel features
Connection
Function
Power Inputs
Power Input Connections
Discharge Transducer
Discharge Transducer Connection
Float Current
Float Current Transducer Connection
Form C Contacts
Spare Form C Contacts
Charger Contact
Charger contact for charger control connection. Charger control relay output for
thermal runaway management. (Automatically shuts down charger when thermal
runaway is detected.)
RS-485 Connection
Communication with optional accessories
Fiber Optic Connectors
Communication with the BDSU network
Voltage/Test Current
Inputs
Sense lead connections for making voltage/test current measurements
Connections to Battery Trays
Temperature
Sensor
Current
Transformer
T
o
T
ray #3 (Jars 16-18)
T
o
T
ray #3 (Jars 13-15)
T
o
T
ray #4 (Jars 22-24)
T
o
T
ray #4 (Jars 19-21)
T
o
T
ray #2 (Jars 10-12)
T
o
T
ray #2 (Jars 7-9)
T
o
T
ray #1 (Jars 4-6)
T
o
T
ray #1 (Jars 1-3)
J5
J4
J3
J2
J1
Temperature 1
Transducers-Current
TB2
Blue
Brown
Brown
White
Green
Black
Red
Yellow/Green
RX TX
Fiber Optic
RX TX
Fiber Optic
24VAC
24VAC
115VAC
Input
BDSUi-BATTERY MODULE
BDSUi-Control
See Diagram
at Right
AC 480V
From UPS
113
TB2
XFMR
531371G1
115 x3
AC 120V
(To Alber Controller)
Option: Power for Alber System
Blue
Brown
Yellow/Green
White
Black
12
H4
X4
X2
X3
X1
H2
H3
H1
608757
Rev. 0
607255
Pg. 4, Rev. 0
