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