Danfoss VLT 3022 User Manual

143MG.30.A7.02 - VLT
®
is a registered Danfoss trademark
Symptom
No message or
backlight in display
Have pre-fuses for the
VLT
®
frequency converter
blown?
No Yes
Is the control card
overloaded? Disconnect
all control signal plugs
on the control card.
Does the fault disappear?
No Yes
Ensure that the previous
points are OK:
The fault can be caused
by short-circuiting on the
control signals.
The 24 V supply might
be short-circuited.
8)
9)
13)
10)
11)
14)
only VLT
®
types 3060 - 3250
Call Danfoss
for assistance
12)
Call Danfoss
for assistance
15)
Call Danfoss
for assistance
Have the built-in mains
fuses blown?
Yes
Fault location
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Danfoss VLT 3022 Specifications

General

Brand	Danfoss
Model	VLT 3022
Category	Media Converter
Language	English