SCOV SV800 Series, User Manual

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SV800/SV800A User Manual 8 Fault and maintenance
211
LCD keyboard
display
LED keyboard
display
Fault Name
Communication
code
FCLoL FCLoL FCL overload fault 24
Possible causes Countermeasures
Acc./Dec. time too short (V/F control) Increase Acc./Dec. time
The load too heavy Reduce the load or replace drive and motor with larger power
Fast current limiting threshold setting
abnormal
Reset the fast current limiting threshold (visible when
allowed by manufacturer)
Improper selection of inverter or motor Reduce the load or reselect the inverter and motor
Continuous heavy load operation at low
frequency(<5.0Hz)
Select inverter with larger power and re-rate using
Fast current limit signal abnormal Replace the control board
LCD keyboard
display
LED keyboard
display
Fault Name
Communication
code
SEr 5Er Speed tracking fault 25
Possible causes Countermeasures
Motor nameplate parameters setting
abnormal
Correctly set the motor nameplate parameters
Self-learning parameter input abnormal
Input motor parameters correctly and perform full mode
self-learning
Abnormal voltage detection signal
Check if the inverter voltage detection is correct or replace
the control board when cannot confirm.
Abnormal current detection signal
Check if the inverter current detection is correct or replace
the control board when cannot confirm.
LCD keyboard
display
LED keyboard
display
Fault Name
Communication
code
PtA PtA Power-on time arrives 27
Possible causes Countermeasures
Inverter power-on time arrives Contact manufacturer or supplier
LCD keyboard
display
LED keyboard
display
Fault Name
Communication
code
rtA rtA Run time arrives 28
Possible causes Countermeasures
Run time arrives Contact manufacturer or supplier
LCD keyboard
display
LED keyboard
display
Fault Name
Communication
code
CoEr CoEr Communication timeout fault 29