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BATTERY CHARGER USER’S MANUAL PART- 2: THEORY OF OPERATION

MCEnPC23-REV.2.4 Page 47

7.3.2 Alarms

The battery charger offers the possibility to detect and display many alarms, which can be assigned to a specific

relay (up to 24 relay). The list below shows all alarms that can be set and adjusted separately:

 Battery High Voltage;

 Battery Low Voltage;

 Positive Ground Fault;

 Negative Ground Fault;

 AC Fail;

 Rectifier Fail;

 Rectifier High Voltage *;

 High Voltage Shutdown *;

 Rectifier Low Voltage *;

 End of Discharge *;

 Internal high Temperature *;

 Internal Low Temperature *;

 External High Temperature & Shutdown **;

 External Low Temperature **;

 AC High Voltage **;

 AC Low Voltage **;

 High Ripple *;

 Rectifier Low Current *;

 Rectifier High Current *;

 Battery Low Current **;

 Battery High Current **;

 Battery High Capacity **;

 Battery Low Capacity **;

 Equalize Alarm *;

 PCOM Communication Alarm **;

 PM Communication Alarm **;

 Frequency Fail *;

 Unbalanced Battery or Cell Defect **;

 Temperature Probe Alarm **;

 Battery Discharge Alarm **;

 Common and Audible Alarm **;

There can be up to 24 optional relays associated with different alarms. Each alarm has the following parameters to

be set:

 Alarm

Enabled/Disabled

 Threshold Enter value

 Time delay 1-8191 sec.

 Relay 1 to 24

 Alarm Display Latched or unlatched

 Relay operation Latched or unlatched

 Failsafe operation ON or OFF (fail-safe (FS) is when relay coils are de-energized when

associated alarms occur)

 Common Alarm ON or OFF (When common relay for all alarms is ordered)

Should any alarm occur, a message will be displayed and the Red LED will blink.

* : Included, enabled upon customer request only. Can also be field activated

** : Optional

Brand	Unipower
Model	ARR-M Series
Category	Battery Charger
Language	English

Unipower ARR-M Series User Manual

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Unipower ARR-M Series Specifications