Fault Location - Danfoss VLT 3000 Series Product Manual

1)
Symptom
Motor runs unevenly
3)
Symptom
Motor does not run
7)
Symptom
Motor does not brake
142

Fault location

2)
If the motor runs unevenly,
but no fault is indicated,
the cause can be incorrect
setting of the VLT
frequency converter. Set
the frequency converter
correctly.
If the new settings cannot
make the motor run
evenly, call for Danfoss
assistance.
4)
Is there backlight in the
display ?
No
5)
Is the unit connected to
the mains supply?
see: 29)
®
MG.30.A7.02 - VLT is a registered Danfoss trademark
®
Yes
Yes
see: 8)
6)
Are fault messages
displayed?
No Yes
see: 19) see page 140