GE Industrial Solutions Galaxy Vector Controller GCM3 - Manual (Page 15)

Galaxy Vector Controller GCM2, GCM3
Issue 4 January 2008 Product Description 2 - 1
2 Product Description
Overview
The Galaxy Vector Controller is mounted on the inside front
door of a GPS plant with the user interface panel accessible from
the front of the door. See Figure 2-1. In the Flexent Outdoor
system, the controller is installed behind a swing-out control/
display panel. See Figure 2-2. Basic controller specifications are
summarized in Table 2-A.
Table 2-A: Galaxy Vector Controller Specifications
GCM2 GCM3
Input voltage range 19 - 30V 36 - 60V
Maximum input power 4.5W
Form C Alarm contact ratings 60V at 0.3A
Plant voltage measurement accuracy
(±.05% of full scale + 1 count)
±30mV ±40mV
Plant voltage measurement resolution .01V
Plant current measurement accuracy ±1% of full scale
Plant current measurement resolution 1A
Thermistor temperature measurement accuracy
• ±3°C for battery temperatures
from -5°C to +55°C
• ±5°C for battery temperatures
from -10°C to -5°C
• ±5°C for battery temperatures
from +55°C to +85°C+
Operating temperature range -40°C to +85°C
Batteryless Operation The Vector 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.