Technical FAQs

Ask a Question

Altivar Process Drive shows "CLI" status on top left corner and then trips on an OLF fault?

Altivar Process Drive shows "CLI" status on top left corner and trips on an OLF fault?

Product Line
Altivar Process Drive (ATV630, ATV930, ATV650, ATV950, ATV660, ATV960, ATV680, ATV980)

All serial numbers for Altivar Process Drive

Drive going into a current limit. Drive is pulling too many amps

"CLI" means Current Limitation
"OLF" means Motor Overload

Overload Trip Conditions
The Motor Overload Fault (OLF) indicates the motor is pulling too many amps. 
The fault is triggered when Motor Thermal State " THr” reaches 118%.  It can be manually reset when the Motor Thermal State is less than 100%.
Read tHr to know the motor state. [Display] [Motor parameters] [Motor Therm state] tHr

1.  Confirm motor current in Display Menu. [Display] [Motor parameters]
2.  Check Motor Parameters in [Complete settings] [Motor parameters]
3.  Check Dual Rating (Only adjust if motor is heavy duty and is sized properly)
4.  If possible uncouple motor and run drive with no load
5.  Disable OPL [Complete settings] [Error/Warning handling] [Output phase loss], run drive with no motor connected to the output. 
     Check voltage on output.
6.  If drive runs fine then check motor.  
     Possible motor causes:
     - Motor rotation
     - Motor winding may be bad (megger motor if necessary)
     - Motor leads and wiring
     - Motor distance over 300ft requires output filter or reactor
Was this helpful?
What can we do to improve the information ?