78
VLT
®
3500 HVAC
MG.35.B1.02 – VLT is a registered Danfoss trademark
Fault messages
•
If an inactive key is pressed:
KEY DISABLED
KEY DISABLED
KEY DISABLED
KEY DISABLED
KEY DISABLED
This indicates that either factory setting has been
selected (parmeter 001).
Parameter 001 must be changed to set-up 1-4.
Or the key in question has been blocked
(parameters 006-009).
•
If an attempt is made to change data that can
only be changed when the frequency converter
has stopped: ONL
ONL
ONL
ONL
ONLY IN STOP
Y IN STOP
Y IN STOP
Y IN STOP
Y IN STOP.....
•
If an attempt is made to change data with an
open LOCK switch: LOCK OPEN.
LOCK OPEN.
LOCK OPEN.
LOCK OPEN.
LOCK OPEN.
•
If an attempt is made to change data outside the
permissible range: LIMIT
LIMIT
LIMIT
LIMIT
LIMIT.....
■
Start-up test:
VLT 3500 HVAC carries out a self-test of the control
card when the mains supply is cut in. The following
message may appear:
The reason for this fault message is a fault on the
control card or an option card, if used. Contact
DANFOSS.
4.4 Fault messages
CONTROL CARD
FAULT_XXXXX
DANFOSS
■
