GE Industrial Solutions Galaxy Pulsar Edge User Manual
Page 121
Galaxy Pulsar Edge Power System Controller
Issue 3 October 2011
121
LEDs ( = On)
Green
Amber
Red
Condition
Normal
Minor Alarm
Major Alarm
Flashing
Communication Loss with Controller
Flash (5s)
Manual Reconnect Command Accepting
In addition, the following conditions will illuminate the LEDs as described below. This assumes
the external disconnect switch is used to open and close the battery charging path to the batteries.
Tri-Color LVD Status
Condition
Red
Green
Amber
Contactor Closed (Normal)
X
Contactor Open (Normal)
(Flash between –Each~1/2 sec on)
X
X
Contactor Open Due To Remote LVD
(Flash between –Each~1/2 sec on)
X
X
ID not configured
Flashing
Alarm Inputs
─ Open String
─ FAJ alarms
X
Fault Alarms
─ Board Fault
─ Contactor FAIL
X
Lamp Test operation activated
(10 second operation)
Red 3 seconds On, Green 3 seconds On,
Amber 3 seconds On, All off for 1 second
Alarm Inputs: The NE872A can be referenced to either Vbus(-) or Vbus(+) so it can be used in
both positive and negative grounded systems. All alarm or control inputs are either alarmed on an
open or a closure to VBus(-) or provide its own signal return as described below:
• Remote LVD Open: The NE872 has the ability to accept a dry contact closure that
will allow an external controller to force open the LVD independently from the
system controller. The contactor will remain disconnected as long as the input is
asserted. Upon de-asserting the input contactor closure, the NE872 will return the
LVD to the a state dictated by the controller.
• Fuse Alarm Major: A contact closure to the non-grounded “Battery” side of the DC
bus (-48V/±24V) applied to this respective input, by default, produces an “Fuse
Alarm Major” alarm by the controller.
• Open String: A contact closure to the non-grounded “Battery” side of the DC bus (-
48V/±24V) applied to this respective input, by default, produces an “Open String”
alarm by the controller.
External Shunt Monitoring Input: The NE872 has the ability to monitor a single shunt