Vertiv
|
Liebert
®
EXM
™
BDC User Manual | Rev. 3 | 01/18 |
8
1.4.3
Input/Output Wiring
Follow the steps below to connect the input wiring:
1.
Locate the input wiring access (top or bottom access), remove the conduit landing plate and punch the appropriate size
hole for the size conduit being used. Pull the three/four input wires through it, allowing some slack for installation. For
cabinets that are located to the immediate left of the UPS, the access plate is on the lower right of the cabinet. Remove the
access plate and verify that the edge guarding is installed and intact.
2.
Secure the conduit to the access plate of the Liebert EXM BDC.
3.
Input power cables connect to the system input bus; refer to
Figure 14
and to
Table 5
.
4.
Connect the ground (earth) wire to the earth busbar and tighten it to 428 lb-in (48Nm) for M12 bolt.
5.
Locate UPS input and output cables and access panel to UPS on lower right side.
6.
Connect the system ground cable between the Liebert EXM BDC and UPS and tighten the connections to 428 lb-in
(48Nm) for M12 bolt.
7.
Connect the system input cables between the Liebert EXM BDC “UPS Input” Busbars (A-B-C N terminals) and UPS input
busbars (A-B-C N terminals) and tighten the connections to 428 lb-in (48Nm) for M12 bolt.
8.
Connect the system output cables between the Liebert EXM BDC “UPS Output” Busbars (A-B-C N terminals) and UPS
output busbars (A-B-C N terminals) and tighten the connections to 428 lb-in (48Nm) for M12 bolt.
9.
Connect TB1 from the Liebert EXM BDC to J23, J24 and J26 on the Liebert EXM.
NOTICE
Risk of improper wiring connection. Can cause equipment damage.
The control wire must be installed to ensure proper operation of the system and fully protect the load when switching
between bypass cabinet and UPS.
NOTES
1.
All interconnection hardware supplied by Vertiv.
2.
AC connections must be made to the UPS module before attaching Liebert EXM BDC to UPS module.
3.
All cabling will be field-supplied when a Liebert EXM BDC is configured as a stand-alone cabinet.
4.
Liebert EXM BDC’s must attach to the right side only of the Liebert EXM UPS.
5.
Refer to the individual drawing of each piece of equipment for additional details.
NOTE
Input wiring must be installed using conduit if cabinet is not mounted to the immediate right of the UPS.
NOTE
If the Liebert EXM BDC is not to be bolted to the UPS, use either top or bottom access plate.
Table 1
Control wiring for Liebert EXM to Liebert EXM BDC
From
To
Liebert EXM UPS Bypass
Module (X9 J23, J24 and J26)
Liebert EXM BDC
Terminal Strip (TB1)
J24-3
TB1-7
FH1-B
TB1-8
J26-15
TB1-6
J26-13
TB1-5
J26-11
TB1-4
J26-9
TB1-3
J23-4
TB1-11
J23-6
TB1-12
FH1-N
J24-1
Refer to
Figure 3
for the location of fuse block FH1 and to
Figure 11
for the location of J23, J24 and J26
