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Emerson NT5C06D User Manual

Page 48

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48 Troubleshooting

UM5C06D ( 169-2071-504 ) P0831010 Standard 7.00 May 2001

SEN FAIL fault

Fault symptom

Possible causes

One or both remote sense leads is disconnected.
DC breaker is open.
Rectifier is still in walk-in.

SEN FAIL

Sense leads are reversed.

Erratic load fault

Fault symptom

Possible causes

Erratic load

Requirement exceeds total rectifier capacity.

Current or voltage float fault

Fault symptom

Possible causes

With paralleled units, the float and/or equalize is

misadjusted causing one or more units to carry the load.

Unit is in 'equalize' mode and paralleled units are not.
Remote sense lead has excessive impedance or are not

connected on one or more rectifiers.

System batteries are in a recharge mode after AC

outage.

Current share mode selection is not the same for all

units.

Current or voltage
float

Forced share line is disconnected. (in FS only)