HP 30 30 User Manual Page 198

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Chapter 8 - Troubleshooting & Maintenance
8-4
Protective
Function
Cause Remedy
2) Incorrect encoder parameter setting
3) Sub-B board or Encoder fault
correctly.
2) Check parameters of EXT-14,15,16 are set correctly.
3) Replace the faulty Sub-B board or Encoder to a new
one.
Option Fault Faulty option connector connection Check option connection.
H/W Fault
1) Wdog error (CPU fault)
2) EEP error (memory fault)
3) ADC Offset (current feedback circuit fault)
Replace inverter
Communication
Fault
1) Faulty connection between inverter and keypad
2) Inverter CPU malfunction
1) Check connector
2) Replace inverter
Operating
Method when the
Speed
Reference is
Lost
LOP (Loss of reference from the Option),
LOR (Remote)
LOV (V1),
LOI (I),
LOX (Sub-V2, ENC)
Eliminate cause of fault
Inverter
Overload
1) Load is larger than inverter rating
2) Selected incorrect inverter capacity
1) Increase motor and/or inverter capacity
2) Select correct inverter capacity
Magnetic
contactor fault
1) Damaged M/C operation detection contact
2) M/C malfunction
1) Check M/C operation detection contact is working
properly.
2) Check M/C is working properly. Replace it, if needed.
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