Danfoss VLT 2020

MG.20.B6.02 – VLT is a registered Danfoss trademark
99
VLT
®
2000 Series
Section 1 Section 2 Section 3
Symptom
No message or light
in display
7)
Have prefuses for the
VLT frequency
converter blown?
No Yes
8)
Call Danfoss
for assistance
12)
10)
Call Danfoss
for assistance
Ensure that the foregoing
step is ok:
The fault can be caused by
short-circuiting on the
control signals. The 24 V
supply might be short-
circuited.
9)
11)
Is the control card over-
loaded? Disconnect all
control signals plugs on
the control card.
Does the fault disappear?
No Yes
Factory settings and service