Table 12 Troubleshooting - Corrective Actions - ABB 827E Product Manual

Condition
System Controller (green)
LED OFF
Distribution Module (DM)
OK LED OFF
Inverter Fail LED FLASH - 1
Inverter
Inverter Fail LED FLASH - all
Inverters
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Possible Cause
Lo input voltage
Failed Controller
Lo input voltage
DDM CB1 OPEN
System Controller Fail
DM Bias Fail
Failed DM
Communication Loss -Inverter
initialization incomplete
Hi Temperature
Hi Peak Output Current
Hi Crest Factor
Hi RMS Output Current
Frequency Lock Fail
Inverter Calibration Lost
Communication Loss -System
Controller Failed or Removed
Communication
Loss -Distribution Monitor or
Distribution Disconnect
Module Failed or Removed
Hi RMS Output Current

Table 12 Troubleshooting - Corrective Actions

Corrective Action
1. Verify DC input fuses or circuit breakers not cleared.
2. Restore input voltage to Inverters to within operating range.
Replace System Controller
1. Verify DC input fuses or circuit breakers not cleared.
2. Restore input voltage to Inverters to within operating range.
Verify DDM CB1 is CLOSED.
Clear load fault if necessary.
See System Controller (green) LED OFF above.
Replace Distribution Module.
Replace Distribution Module.
Wait for initialization to complete.
1. Clear any air flow blockage at front and rear of inverter.
2. Reduce ambient temperature to within specified operating
limits.
3. Replace Inverter.
1. Examine Inverter currents menu path: INV > Inv # > STAT
2. If current is much higher than currents on other Inverters
Replace Inverter.
1. Examine Inverter currents menu path: INV > Inv # > STAT
2. If crest factor is much higher than on other Inverters Replace
Inverter.
3. Examine Inverter currents menu path: INV > Inv # > STAT
4. If current is much higher than currents on other Inverters
Replace Inverter.
Replace Inverter
Replace Inverter
Replace System Controller
Replace Distribution Monitor or Distribution Disconnect Module.
Excessive Load
1. Verify Excessive VA load menu path: PLANT > STAT > PLANT
LOAD
2. Examine Plant Load menu path: PLANT > STAT > PLANT KVA
3. Compare Plant Load to On-Line Inverter Capacity
4. Add Inverters or reduce load.