GE Industrial Solutions Galaxy Vector Rack Mounted Controller J85501M-1 - Manual (Page 16)

Galaxy Rack-Mounted Vector Controller J85501M-1
2 - 2 Product Description Issue 2 January 2008
Batteryless Operation The J85501M-1 Controller is suitable for use in power plants
with or without batteries. In batteryless plants, the loss of ac
power causes an immediate loss of dc power to the controller and
the activation of all office alarm relays. When ac power is
restored, plant rectifiers will return to their last specified voltage
set point, and the controller will automatically return to its last
configuration.
Figure 2-1: J85501M-1 Galaxy Vector Controller
1.7"
21.2"
Weight: 10.5 lb
11"
GCM2 or GCM3
Control Board
J85501M-1 Controller uses the GCM2 (24V) or GCM3 (48V)
controller boards available in Lineage Power GPS and FMS
systems. This board consists of an embedded microcontroller, A/
D converters, timers, memory, and input/output alarm and
control circuitry with connections to the terminal connection
boards. Software is updated by replacing the controller board. It
is possible to upgrade the software by replacing the memory IC
(IC27), but this method is not recommended. Replacing the
board eliminates directly handling, and possibly causing damage
to the memory IC. There are no hardware user-configurable
items on the GCM boards.
Figure 2-2: J85501M-1 Vector Controller GCM2 or GCM3
J1 and J3 - Connect to BUJ1
IC27 - Peripheral Support and Memory IC
IC1 - Microcontroller
+
IN
OUT-
OUT+
J1 J3