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What can cause an InFb or internal error 11 on the ATV630 and ATV930 Process drives?


Issue:
ATV660- What can cause a internal error 11 (InFb)? 

Product Line:
ATV630, ATV930, ATV660 and ATV960
 
Environment:
All 
 
Cause:
- loose connection of the temp. sensors.
- not correctly connected plugs
- Calibration data of the thermal sensors not correct.
 
Resolution:
All internal temperature sensor is monitored, for short circuit or open circuit.
If a short circuit / open circuit is detected the InFb occurs.
 
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