GE Industrial Solutions CPS6000 - Manual (Page 172)

CPS6000 –48V Indoor/Outdoor Power Shelf
Issue 21 January 2008
172
The following is a brief explanation of the alarm conditions.
Battery on Discharge: The battery on discharge alarm is asserted when the controller
detects the plant bus voltage going below the Battery on Discharge thresholds set by
the user.
High Voltage: The high voltage alarm is asserted when the controller detects the
plant bus voltage going above the High Voltage thresholds set by the user.
High Battery Temperature: This feature is only possible when used with slope
thermal compensation. The battery thermal alarm is asserted when the controller
detects battery temperatures in excess of 55°C. The alarm is retired when the battery
temperatures drop 10°C below the alarm threshold.
Multiple AC Fail: The multiple AC fail alarm is asserted when the controller detects
multiple ac fail alarms from the rectifiers.
Multiple Rectifier Fail: The multiple rectifier alarm is asserted when the controller
detects multiple rectifier fail alarms from the rectifiers.
Major Fuse: The major fuse alarm is asserted when the controller detects an open
load protector in the Distribution Module.
Auxiliary Major: The auxiliary major alarm is asserted when the controller detects
an external equipment fail alarm, if present and monitored.
Imminent Shutdown: If enabled, the imminent shutdown alarm is asserted when the
controller detects the LVD board about to disconnect the batteries from the load to
prevent them from deep discharge. If asserted, this alarm may be used by the host to
perform an orderly shutdown.
Voltage Imbalance Detection: If enabled and properly configured, the voltage
imbalance detection alarm is asserted when the controller detects an imbalance
between the two halves of each battery string being monitored.
AC Fail: The ac fail alarm is asserted when the controller detects a single ac fail
alarm from any rectifier.
Rectifier Fail: The rectifier fail alarm is asserted when the controller detects a single
rectifier fail alarm from any rectifier.
Rectifier Redundancy Loss: If enabled, the rectifier redundancy loss alarm is
asserted when the total rectifier output current exceeds N rectifier capacity, assuming
N+1 rectifiers are present in the system.
Open String: This alarm is only available when used with the QS872A Board
(connector P4). This alarm is issued to indicate an open charge path to batteries when
an external disconnect switch is used to disconnect the batteries from the charge bus;
it is asserted with a PMJ severity.