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Figure 2-1: Typical Power Connections.
2.3.5 Battery Connections
The connections to be made are the positive, negative, and ground cables from the battery cabinet to the UPS. The
battery cables are terminated at the positive, negative, and ground busbars. See Figure 2-1.
2.3.6 Remote Emergency Power Off Connections
The control connections are available for Remote Emergency Power Off (REPO) through a customer-supplied
(normally closed) pushbutton. With REPO connected, the jumper on the REPO terminal blocks must be removed.
See Figure 2-1.
1. Remove the jumper from terminal block TB4 located across terminals 7 and 8.
2. Connect the remote emergency power off NC contact to terminals 7 and 8.
IMPORTANT The UPS is also equipped with a local Emergency Power Off (EPO) button on the
front of the UPS cabinet. This switches all UPS critical power off. EPO or REPO
should be used for emergency only!
2.3.7 Battery Control Connections
The battery control connections are made with the battery control cables from the external battery cabinet to the
UPS terminal block TB4-1 to TB4-4. See Figure 2-1.
REAR AREA
BUSBARS
FRONT
Output
TB2
TB4 Control
TB3 Bypass
Input
TB1 Main
Input
Neutral
Ground
Battery Positive
Battery Negative
FRONT VIEW
GROUND
TB4
TB1
TB2
NEUTRAL
NEGATIVE
POSITIVE
BUSBARS
A
B
C
A
B
C
A
B
C
Galaxy 4000
Installation2 — 4 86-173010-00 A00