MG.20.B6.02 – VLT is a registered Danfoss trademark
VLT
®
2000 Series
98
Factory settings and service
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.
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.
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Symptom
Motor runs unevenly
Symptom
Motor does not run
1)
3)
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.
Is there light in the
display ?
No Yes
Is the unit connected
to the mains supply?
Yes
2)
4)
5)
Are fault messages
displayed?
No Yes
6)
See section on
Display messages
on page 82.
7, page 99
13, page 100
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