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Using an ACLD: Troubleshooting

Page 98

ACLD Fault

ACLD Status

menu heading

FAULT

PWR

CHG

INV

06A ACLD Status

Overtemp Fault

Figure 9-2, ACLD Fault Message (Example)

9.3 ACLD Troubleshooting using the ME-ARC

This section assists you in using your remote to identify a fault and to resolve an abnormal op-

erational condition detected within your ACLD system.

9.3.1 ACLD Fault Message Screens

When an ACLD fault is detected (i.e., ACLD’s LED blinks), navigate to the METER: 06 ACLD

Meters/06A ACLD Status menu to view the fault status. Figure 9-2 is an example of how ACLD

fault messages appear on the ME-ARC remote. Use the remote’s LCD screen, your ACLD owner’s

manual, and the information in this section to identify and correct the issue.

9.3.2 Resolving ACLD Faults using the ME-ARC

For the listed faults below, refer to their respective remedy.

• Desat Fault – Hardware saturation has occurred—indicates a possible catastrophic failure.

Remedy: This fault requires a reset of the ACLD. Press the ON/OFF switch on the side

of the ACLD controller to remove power to the unit, and then press the ON/OFF switch

again to restore power. If fault recurs, contact Magnum Energy for service.

• High Current Fault – The current is at least 30% above rated current. This may be the result

of a load that is not sized correctly, or may be a bad power board.

Remedy: Ensure that the load is connected. Press the ON/OFF switch on the side of the

ACLD controller to remove power to the unit, and then press the ON/OFF switch again

to restore power.

• High VAC In Fault – The AC input voltage is above 275 VAC.

Remedy: This fault automatically clears once AC input voltage falls below 260 VAC.

• No Load Fault – No loads detected on either output terminals (or min. current ﬂ ow to loads).

Remedy: Check to ensure that the loads are sized and connected correctly.

• Output Short Fault – A shorted output to loads has been detected.

Remedy: Check to ensure that the loads are sized and connected correctly. See the

ACLD owner’s manual for load sizing criteria.

• Overcurrent Fault – The current has reached an extremely high level (about twice the rated

current). Possibly the result of too big of a load.

Remedy: Check to ensure that the loads are sized and connected correctly. Press the

ON/OFF switch on the side of the ACLD controller to remove power to the unit, and then

press the ON/OFF switch again to restore power. See the ACLD owner’s manual for load

sizing criteria.

• Overtemp Fault – The unit temperature has risen above 90°C—will automatically reset once

temperature falls below 70°C.

Remedy: This fault automatically clears once the temperature falls below 70°C. See the

ACLD owner’s manual for load string criteria.