User's Manual

Table Of Contents
Page 48
X75 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. x75-10b
x75-man-Rev10b-0514.indd
6. Alarms
These are all part of one alarm status ag held within the controller.
ACFAIL - Indicates an AC Failure detected by the power supply rectiers or an external
sensor.
MAJOR - Indicates that a major alarm condition requiring immediate attention has been
detected by the controller.
MINOR - Indicates that a minor alarm condition requiring attention at the next scheduled
maintenance has been detected by the controller.
SINGLE RECTIFIER FAILURE (SRFA) - The controller has detected that a single rectier
has failed
MULTI RECTIFIER FAILURE (MRFA) - The controller has detected that multiple rectiers
have failed.
OVER TEMPERATURE ALARM (OTA) - The controller has detected an over temperature
condition on battery/external/controller temperature sensor.
OVER VOLTAGE ALARM (OVA) - The controller has detected an over voltage condition
on the bus.
UNDER VOLTAGE ALARM (UVA) - The controller has detected an under voltage condition
on the bus.
END VOLTAGE ALARM (EVA) - The controller has detected an End Voltage condition, i.e.
the batteries are near end of discharge.
LOW VOLTAGE DISCONNECT ALARM (LVD) - The controller has detected that one of
the LVDs is open.
FUSE ALARM - The controller has detected that a fuse or breaker is open.
CHECK BATTERY (CHKBAT) - The controller has detected a fault with the battery string(s)
either temperature or current related.
COMMUNICATION FAULT (COMM) - The controller has detected a problem with the
internal I²C bus.