Why does the AC breaker trip on my Unipower ARR-M?
If the AC breaker trips in your Unipower Battery Charger, it could be due to a short circuit. Check for shorts from input to output connections. Also, it could be due to an SCR, diode, or control board failure, so replace the defective component.
What to do if the DC fuse blows or DC breaker trips on my Unipower ARR-M?
If the DC fuse blows or the DC breaker trips in your Unipower Battery Charger, it could be due to several reasons: - Freewheeling diode failure: Check the freewheeling diode for a short circuit. - Control board failure: Replace the control board. - SCR module failure: Verify SCR modules and replace if needed. - Battery connections reversed: Verify the polarity of battery connections. - DC filter failure: Check for a shorted DC filter capacitor.
Why does my Unipower Battery Charger have a high ripple voltage?
High ripple voltage in your Unipower Battery Charger can occur due to: - High AC line voltage: Read the input voltage and rectify the problem. Verify that the AC supply is of correct voltage and frequency. - Defective filter capacitor: Disconnect the capacitor(s) to observe any change in the output voltage ripple. Replace capacitor(s) if needed. - SCR, diode, or control board failure: Replace the defective component.
What causes the low voltage alarm on my Unipower ARR-M Battery Charger?
A low voltage alarm on your Unipower Battery Charger may be triggered by: - Charger overload: Check if the charger is in the current limit mode and inspect the load for issues. - AC input failure: Verify that the AC supply is of the correct voltage and frequency. - Float, equalize, and/or low voltage alarm adjustments affected: Refer to the adjustment procedures to reset.
Why is my Unipower ARR-M Battery Charger making abnormal noise?
Abnormal noise in your Unipower Battery Charger can be caused by: - SCR firing circuit problem: Check if all LEDs on the control board are ON: One LED blinking, 2 solid for 1Phase system and 6 solid for 3Phase system. - Unbalanced current at the AC Input / Output of the power transformer: Check if the current is balanced at the input and the output of the power transformer. - SCR module failure: Verify SCR modules and replace if needed. - Control board failure: Replace the control board.
What causes high output current in my Unipower ARR-M Battery Charger?
High output current in your Unipower Battery Charger can be attributed to: - Improperly set float and/or equalize current limits: Refer to the adjustment procedures to reset. - Shunt signal problem: Check the shunt signal connection to the control board. - Affected calibration: Check with an external ammeter and compare the reading with the current value on the display.
Why does my Unipower ARR-M have low output current?
Low output current in your Unipower Battery Charger can be caused by: - Improperly set float and/or equalize current limits: Refer to the adjustment procedures to reset. - Affected calibration: Check with an external ammeter and compare the reading with the current value on the display. - Loose connection: Check power wiring for loose connections.
General| Output Voltage | 12V / 24V / 48V (depending on model) |
|---|---|
| Battery Type | Lithium-ion |
| Protections | Over Voltage, Short circuit, Over temperature |
| Dimensions | Varies by model |
| Certifications | CE, RoHS |
Overview of the manual's purpose and target audience.
Crucial safety precautions for operating the equipment.
Guidelines for storing the charger/rectifier.
Instructions for proper physical installation and location.
Requirements for airflow and temperature for optimal performance.
Procedures for safe and correct electrical hookups.
Steps to safely turn on the charger after installation.
Steps to safely shut down the charger and related systems.
Explanation of how the battery charger functions.
Guide to navigating the charger's interface using the keypad.
Description of different operational modes like Float and Equalize.
How to manually initiate specific charging modes.
Details on monitoring AC power input.
Information on monitoring battery current flow.
Overview of adjustable settings and system parameters.
How temperature affects output current.
Explanation of how to monitor voltage at battery terminals.
Guidance for diagnosing and resolving operational issues.
Schedule and actions for routine system upkeep.
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