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Fault diagnosis and countermeasures
Fault name
Hardware fault of frequency convertor
Display panel
Err22
1. Overvoltage exists
Check fault
2. Over-current exists
cause
1. Process as per overvoltage fault
Fault handling
2. Process as per over-current fault
method
Fault name
To-ground short circuit fault
Display panel
Err23
Check fault cause 1. To-ground short circuit of motor
Fault handling
1. Change cable or motor
method
Fault name
Fault of reaching accumulative operation time
Err26
Display panel
Check fault cause 1. Accumulative operation time reaches set value
Fault handling
1. Use parameter initialization function to eliminate recorded information
method
Fault name
User defined fault 1
Display panel
Err27
1. Input signal of user defined fault 1 through multi-function terminal DI
Check fault
2. Input signal of user defined fault 1 through virtual IO function
cause
1. Reset operation
Fault handling
2. Reset operation
method
Fault name
User defined fault 2
Display panel
Err28
1. Input signal of user defined fault 2 through multi-function terminal DI
Check fault
2. Input signal of user defined fault 2 through virtual IO function
cause
1. Reset operation
Fault handling
2. Reset operation
method
Fault name
Fault of reaching accumulative electrifying time
Display panel
Err29
Check fault cause 1. Accumulative electrifying time reaches set value
Fault handling
1. Use parameter initialization function to eliminate recorded information
method
Fault name
Off-load fault
Display panel
Err30
Check fault cause 1. Running current of frequency convertor is < P9-64
Fault handling
1. Confirm if load is separated or if P9-64, P9-65 parameter settings conform to actual
method
operation condition
Specification of high-performance vector convertor
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