GE Industrial Solutions Galaxy Pulsar Edge User Manual
Page 129
Galaxy Pulsar Edge Power System Controller
Issue 3 October 2011
129
Edge controller and three connectors for monitoring circuit breakers, contactors and shunts. The
connectors are defined as follows.
J1
Provides the connections to external distribution module’s bus voltage and power,
shunt inputs and reference, Fuse Alarm Major And Open String Inputs, and shunt.
Pin # Signal Name
Signal Description
1
VPWR-
VBUS(-) or BATT- Power. Power and board reference for QS871,
connect to Non-Grounded side of the DC bus (-48V).
2
VPWR+
VBUS (+) Power and Positive Sense voltage for backup monitoring.
3
BATT-
Discharge Battery (BAT) input connected to the Non-Grounded side
of the DC bus (-48V). Used as sense voltage for backup monitoring,
reverse voltage detection, and force contactor closed.
4
SHUNT+
Positive Battery Shunt input signal whose signal polarity is defined by
the voltage on the shunt during battery discharge.
5
SHUNT-
Negative Battery Shunt input signal whose signal polarity is defined
by the voltage on the shunt during battery discharge
6
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).
7
FAJ
General purpose Fuse Alarm Major (FAJ) alarm input; Major alarm on
closure to the non-grounded “Battery” side of the DC bus (-48V).
8
SHLF_ID3
Signal used for identifying the board. Pulled up or down on board
accordingly in the factory.
J2
Provides the contactor management interface for control and LVD status.
Pin #
Signal Name
Signal Description
1
LVD_COIL
Positive voltage applied to Low Voltage Disconnect Coil.
Connect to positive side of contactor coil.
2
LVD_COILRTN
Contactor coil return to VBUS- potential through circuitry.
Connect to most negative side of Contactor coil, other side of coil
connected to VBus(+).
3
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.
4
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.