VLT ® 2000 Series Factory settings and service I Troubleshooting The fault location procedure is described on the following pages. A total of 5 symptoms are described in the flow charts. Should you need any further guidance you are always welcome to contact Danfoss. I Service Danfoss wil repair the new VLT 2000 1/3 phase, 230 V and the VLT 2000 3-phase 380-460 V. The service policy is based on replacement of vital parts. Please contact your nearest distributor for further in- formation. 1) 2) Symptom If the motor runs unevenly but no fault is indicated the cause can be incorrect set- ting of the VLT 2000. Set the frequency converter correctly. Note how to return to the factory setting.
For factory settings, see page 105. Motor runs unevenly 3) 4) Symptom Motor does not run 6) 5) Is the unit connected to the mains supply? Yes 7, page 99 98 MG.20.B6.02 – VLT is a registered Danfoss trademark Is there light in the display ? No Yes Are fault messages displayed? No Yes See section on Display messages on page 82.