Tyco Electronics Galaxy SC Controller J85501F-1
3 - 22 Installation Issue 13 February 2001
Fuse/CB Alarm
Wiring
1. Verify that Major distribution fuse/circuit breaker alarm wiring
has been factory wired to the BJT Termination board TB3-5,
located at the rear of the controller. Complete if necessary in
accordance with the appropriate plant and job-specific wiring
information. Complete fuse alarm wiring between distribution
bays at this time.
2. Verify that Minor fuse alarm wiring (typically for the capacitor
charge circuit) has been factory wired to the BJT TB3-6 and
complete if necessary.
Optional Feature
Wiring
If any optional features are to be equipped on the Galaxy SC, complete
their external wiring in accordance with the information found in the
sections referenced in Table 3-G.
SH+ (R-O)
Positive potential shunt voltage. Signal from the rectifier, used in
conjunction with SH-, to provide a differential shunt voltage with
the range of (0mVDC to 150mVDC) to the Galaxy SC. Both SH+
and SH- signals should be current limited at the rectifier shunt
source with 100KΩ resistors. Maximum common-mode input
voltage between any two shunt channels on individual BJC2 circuit
packs should be 2.5V. Furthermore, the common-mode voltage
should not exceed 160VDC.
SH- (R-G)
Negative potential shunt voltage. Signal from the rectifier, used in
conjunction with SH+, to provide a differential shunt voltage with
the range of (0mVDC to 150mVDC) to the Galaxy SC. Both SH+
and SH- signals should be current limited at the rectifier shunt
source with 100KΩ resistors. Maximum common-mode input
voltage between any two shunt channels on individual BJC2 circuit
packs should be 2.5V. Furthermore, the common-mode voltage
should not exceed 160VDC.
RTN1 (G-R)
Return signal for ACF, RFA, TRH, and MAN. This signal is the
Galaxy SC reference ground.
Table 3-F: Galaxy SC Controller Commercial Rectifier Cable
(H285-226 G62) Connection Information
Galaxy SC
Signal Name
Cable
Wire
Color
Signal Description