GE Industrial Solutions Galaxy Vector Controller GCM3 - Manual (Page 25)

Galaxy Vector Controller GCM2, GCM3
Issue 4 January 2008 Product Description 2 - 11
Voltage Sense Inputs: The GCM recognizes one of the four
voltage sense inputs on the BLJ board. Sense inputs are 50mv
full scale. Each of these leads should be fused at the source.
See Table 2-I.
Table 2-I: Plant Voltage Sense Inputs
Terminal Signal Name Description
V1+ Vsense+
Positive remote voltage regulation
sense point for GCM.
V1- Vsense–
Negative remote voltage regulation
sense point for GCM.
J12: This jumper is factory set, and determines the controller
ground (CG) reference. The controller ground reference is set
according to the location of the plant shunts being monitored. If
the shunts are located in the Battery side of the DC bus then J12
should be set to position 1-2. If the shunts are located in the
Discharge Ground (DG) side of the DC bus then J12 should be
set to position 2-3. For +24V and -48V GPS, J12 should be set
to position 1-2.
Table 2-J: J12 Jumper
Jumper +24V System -48V System
J12 Across pins 1 and 2
Thermal probe connections: Four thermistor or 210E module
inputs. Each thermistor is connected to the RTH#+ and RTN#,
where # = 1 through 4. A strap is required across RTH#+ and
EN#+ for each thermistor input used. The strap is not required
when using 210E modules. For the indoor system, the thermal
probe and cable are factory installed.
RTH ALM, RTH ALMR: Thermistor alarm input and return
from 210E module. See Section 4 for 210E module connections.
CG: Controller Ground is the GCM reference ground, and
should be connected to the bus on which shunt(s) are mounted.
This pin should be used to reference the 210E ground to the
Vector Controller ground.