Unipower ARE-M02406, Product Manual

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Micro ARE-M Series 24V Chargers, Single Phase Maintenance
PM990-1070-24, Issue 12
6-3
Always store circuit boards in anti-static bags.
6.3.3 ARE-M Display Codes
Code Description
STARTING
Displays anytime charger resets and starts walking up to the set point voltage
OPEN BREAKER
DC breaker is open. Takes ≈1/4
- 1/2 amp to clear
MAXIMUM OUTPUT
The charger’s control is delivering the maximum possible output power.
Over Current
The charger current output is above the current limit set point. This code could be
produced by a large load change, or a deeply discharged battery.
Current Limit
The charger is holding the output current at the current limit set point and the voltage is
below the output voltage set point. This code could be produced by a large load
current, or deeply discharged batteries.
Ending Current Limit
The charger is current limiting, but increasing the output voltage to get to the float
voltage set point.
CANNOT REGULATE
The output voltage is above the chargers voltage set point. The charger is trying to
regulate the voltage output, but does not sense the output voltage drop. Parallel
chargers w/o proportional load sharing could cause this code.
EQ Current Limit
When the charger is changing from float to equalize, the increase in voltage is causing
the charger to go into current limit. The charger will slowly increase voltage as the
load current (typically batteries) decreases.
OC-Cancel Equalize
Equalization has caused the charger’s output to exceed the current limit set point. The
charger will attempt to decrease the output voltage to lower the output current. If the
charger is unsuccessful, the charger will terminate the equalization mode and return to
float. This can be caused by a step load change while in equalization mode
Remote Equalize
The charger’s external equalization input is shorted, so the charger is in Equalization
mode.
HIGH VOLTAGE SHUTDOWN The charger voltage sense was above the High Voltage Shutdown set point. The
charger went into a high voltage shutdown mode to protect the load(s).
SEL to Reset
The charger can be reset from a High Voltage Shutdown mode from the keypad by
pressing the SEL button. If the interface board has triggered an HVSD, generated by
the interface board, the wiring harness connected to J5 on the interface board may have
to be removed for 5 seconds then replaced to clear the fault.
AC Fail
No AC line input to the charger is currently being detected.