Danfoss VLT 6000 HVAC

VLT
®
6000 HVAC
154
MG.60.B1.02 - VLT is a registered Danfoss trade mark
ALARM: 32
Motor phase W missing
(MISSING MOT.PHASE U):
Motor phase W between VLT frequency converter
and motor is missing.
Turn off the VLT frequency converter and check
motor phase W.
WARNING/ALARM: 34
HPFB communication fault
(HPFB COMM. FAULT)
The serial communication on the communication
option card is not working.
WARNING: 35
Out of frequency range
(OUT FREQ RNG/ROT LIM):
This warning is active if the output frequency has
reached its parameter 201 Output frequency low limit
or parameter 202 Output frequency high limit.
ALARM: 37
Inverter fault (GATE DRIVE FAULT):
IGBT or the power card is defective. Contact your
Danfoss supplier.
Auto-optimisation warnings 39-42
Automatic motor adaptation has stopped, since some
parameters have probably been set wrongly, or the
motor used in too big/small for AMA to be carried out.
A choice must thus be made by pressing [CHANGE
DATA] and choosing ‘Continue’ + [OK] or ‘Stop’ +
[OK].
If parameters need to be changed, select ‘Stop’; start
up AMA all over.
WARNING: 39
CHECK PAR. 104, 106
Parameters 104 Motor frequency f
M,N
, or 106 Rated
motor speed n
M,N
, have probably not been set
correctly. Check the setting and select ‘Continue’ or
[STOP].
WARNING: 40
CHECK PAR. 103, 105
Parameter 103 Motor voltage, U
M,N
or 105 Motor
current, I
M,N
has not been set correctly. Correct the
setting and restart AMA.
Warnings and alarms, cont.
ALARM 29
Heat sink temperature too high
(HEAT SINK OVER TEMP.):
If the enclosure is IP 00 or IP 20, the cut-out
temperature of the heat-sink is 90°C. If IP 54 is used,
the cut-out temperature is 80°C.
The tolerance is ± 5°C. The temperature fault
cannot
be reset, until the temperature of the heat-sink is
below 60°C.
The fault could be the following:
- Ambient temperature too high
- Too long motor cable
- Too high switching frequency.
ALARM: 30
Motor phase U missing
(MISSING MOT.PHASE U):
Motor phase U between VLT frequency converter and
motor is missing.
Turn off the VLT frequency converter and check motor
phase U.
ALARM: 31
Motor phase V missing
(MISSING MOT.PHASE V):
Motor phase V between VLT frequency converter and
motor is missing.
Turn off the VLT frequency converter and check motor
phase V.