Danfoss VLT 6000 HVAC Manual de servicio descargar pdf (Pagina 154)

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.

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Danfoss VLT 6000 HVAC Manual de servicio Pagina 154

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