Fault diagnosis and countermeasures
Specification of SN200G high-performance vector convertor
- 158 -
Fault name
Hardware fault of frequency convertor
Display panel
Err22
Check fault
cause
1. Overvoltage exists
2. Over-current exists
Fault handling
method
1. Process as per overvoltage fault
2. Process as per over-current fault
Fault name
To-ground short circuit fault
Display panel
Err23
Check fault cause 1. To-ground short circuit of motor
Fault handling
method
1. Change cable or motor
Fault name
Fault of reaching accumulative operation time
Display panel
Err26
Check fault cause 1. Accumulative operation time reaches set value
Fault handling
method
1. Use parameter initialization function to eliminate recorded information
Fault name
User defined fault 1
Display panel
Err27
Check fault
cause
1. Input signal of user defined fault 1 through multi-function terminal DI
2. Input signal of user defined fault 1 through virtual IO function
Fault handling
method
1. Reset operation
2. Reset operation
Fault name
User defined fault 2
Display panel
Err28
Check fault
cause
1. Input signal of user defined fault 2 through multi-function terminal DI
2. Input signal of user defined fault 2 through virtual IO function
Fault handling
method
1. Reset operation
2. Reset operation
Fault name
Fault of reaching accumulative electrifying time
Display panel
Err29
Check fault cause 1. Accumulative electrifying time reaches set value
Fault handling
method
1. Use parameter initialization function to eliminate recorded information
Fault name
Off-load fault
Display panel
Err30
Check fault cause 1. Running current of frequency convertor is < P9-64
Fault handling
method
1. Confirm if load is separated or if P9-64, P9-65 parameter settings conform to actual
operation condition
