VLT ® 2000 Series Factory settings and service 13) 14) Symptom Start the VLT frequency converter by pressing Start” on the keyboard. Motor stationary, info in display but no fault message displayed 16) 15) Check whether the following precautions have been taken! • Have screened control cables been used? • Are the screened cables connected correctly? 17) Is the motor connected correctly and are all motor phases ok? Yes Yes 18) 19) Contact Danfoss. 20) Check whether the control signals to the control card are ok. 100 MG.20.B6.02 – VLT is a registered Danfoss trademark Is the display frozen, i.e. the display cannot be changed or is undefinable?
No Yes The frequency converter must be set to run using local references. The parameter settings must be changed thus: parameter 003 = Local parameter 004 =Change by means of “+” and “-”. Does the motor run? Yes No