®
USER’S GUIDE
Battery Management System
170
Alarm Relay and LED Operation
Situation/Condition Alarm Relay Status LEDs
NOTE:Alarm Relay
operates as a “Fail-
Safe” device that is
energized during
non-alarmed periods.
Normally Open
Contacts (de-
energized)
Management
Controller
Batteries Charger Environment
Normal Operations Closed
(energized)
On On On On
Management System
Fault
Open
(de-energized)
Flash On On On
High or low
environment
temperature or
auxiliary environment
sensor alarm
Open
(de-energized)
On On On Flash
Charger Fault - High
or low charging
voltage or high ripple
current
Open On On Flash On
Connection fuse or
wiring fault
Open Flash On On On
Battery Fault - Low
capacity, high ohmic
value, shorted cell or
thermal runaway
Open On Flash On O n
Missing or Faulty
Sensor
Open Flash On On On
System off or loss of
input power
Open Off Off Off Off