GE Industrial Solutions Galaxy Vector Controller GCM3 - Manual (Page 24)

Galaxy Vector Controller GCM2, GCM3
2 - 10 Product Description Issue 4 January 2008
BAT: Connection to the battery discharge bus for controller
power, and fused through F2 (1 1/3A). It is +24V for the GCM2,
and -48V for the GCM3.
ABS: Auxiliary Battery Supply: connection to the battery
discharge bus for user application (four terminals available), and
fused through F1 (2A).
DG: Connection to battery return (discharge ground) bus. DG
(five terminals available) provides the return for BAT (controller
power), and ABS user applications if required.
Battery shunt inputs: The GCM recognizes two of the four
available shunt inputs on the BLJ board. Shunt inputs are 50mv
full scale. The BLJ3 requires 100K 1% resistors in series
with the shunt. See Table 2-H.
Table 2-H: Battery Shunt Inputs
Terminal Signal Name Description
SH1+ Shunt1+
The more positive lead of a battery shunt
during discharge
SH1– Shunt1–
The more negative lead of a battery shunt
during discharge
SH2+ Shunt2+
The more positive lead of a battery shunt
during discharge (See note)
SH2– Shunt2–
The more negative lead of a battery shunt
during discharge (See note)
Note: When no shunt is available to connect to Shunt 2 inputs, the Shunt 2
inputs must be jumpered together. When both shunts are used, they must
both be configured as “Load” or “Battery” shunts. They cannot be mixed.