GE Industrial Solutions Galaxy Pulsar Edge User Manual
Page 124
Galaxy Pulsar Edge Power System Controller
Issue 3 October 2011
124
J2
Provides the contactor management interface for control and LVD status.
Pin #
Signal Name
Signal Description
1
LVD_COILA
Low Voltage Disconnect Coil Voltage A. “A” positive with respect
to “B” to close contactor. Signal connected to one side of contactor
coil.
2
LVD_C
Common of contactor status indicator. Connect signal to Common of
the micro-switch of contactor. Return reference for LVD auxiliary
alarm status detection.
3
LVD_NO
Normally Open contactor status monitor indicator. Closed to LVD_C
when contactor is closed. Connect signal to NO pin of micro-switch
of contactor.
4
LVD_COILB
Low Voltage Disconnect Coil Voltage B. “B” positive with respect
to “A” to open contactor. Signal connected to other side of contactor
coil.
5
BATT_SNS
Reserve Battery Sense Voltage input signal. Battery bus voltage used
for reverse battery detection. Connection made to battery side of the
battery contactor. Signal connection must not be used for Load
contactors.
6
LVD _NC
Normally Closed contactor status monitor. Closed to LVD_C when
contactor is open. Connect signal to NC pin of micro- switch of
Contactor.
TB1
Terminal Block connection that provides field access to Fuse Alarm Major, Open
String, and the Remote LVD input.
Pin # Signal Name
Signal Description
1
Remote LVD
Return
Protective (PTC or resistive) return to NE common for External
Remote LVD contact closure input signal.
2
Remote LVD External contact closure for remote disconnecting attached LVD;
Disconnects LVD on a dry contact closure to Remote LVD Return
when feature is enabled.
3
FAJ
General purpose Fuse Alarm Major (FAJ) alarm input; Major alarm on
closure to the non-grounded “Battery” side of the DC bus (-
48V/±24V). Optional connection at connector J1.
4
OS
Open String (OS) alarm input for external battery disconnect switch;
Alarms on closure to the non-grounded “Battery” side of the DC bus (-
48V/±24V). Optional connection at connector J1.