Vacon NXV0040 - Page 41

MAINTENANCE AND TROUBLESHOOTING vacon • 41
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8
System fault
- component failure
- faulty operation
Note exceptional fault data record
Subcode in
T.14:
S1 = Reserved
S2 = Reserved
S3 = Reserved
S4 = Reserved
S5 = Reserved
S6 = Reserved
S7 = Charging switch
S8 = No power to driver card
S9 = Power unit communication (TX)
S10 = Power unit communication (Trip)
S11 = Power unit comm. (Measurement)
Reset the fault and restart.
Should the fault re-occur, contact your
local distributor.
9
Undervoltage
DC-link voltage is under the drive fault
voltage limit. See user manual.
− most probable cause: too low a
supply voltage
− AFE internal fault
− One of input fuse is broken.
- In case of temporary supply voltage
break, reset the fault and restart the
frequency converter.
- Check the supply voltage.
- If it is adequate, an internal failure has
occurred.
- Check input fuses
- Check DC charge function
10
Input line su-
pervision
Line Sync Fail
Input line phase is missing.
Subcode in T.14:
S1 = Phase supervision diode supply
S2 = Phase supervision active front end
Check supply voltage, fuses and cable.
11
Input phase
supervision
Input line phase is missing.
Check supply voltage, fuses and cable.
13
Frequency con-
verter under-
temperature
Heatsink temperature is under –10°C
14
Frequency con-
verter over-
temperature
Heatsink temperature is over 90°C
Overtemperature warning is issued
when the heatsink temperature exceeds
85°C.
- Check the correct amount and flow of
cooling air.
- Check the heatsink for dust.
- Check the ambient temperature.
18
Unbalance
(Warning only)
Unbalance between power modules in
paralleled units.
Subcode in T.14:
S1 = Current unbalance
S2 = DC-Voltage unbalance
Should the fault re-occur, contact your
local distributor.
22
EEPROM
checksum fault
Parameter save fault
− faulty operation
−
component failure
Should the fault re-occur, contact your
local distributor.
24
Counter fault
Values displayed on counters are incor-
rect
Have a critical attitude towards values
shown on counters.
25
Microprocessor
watchdog fault
− faulty operation
− component failure
Reset the fault and restart.
Should the fault re-occur, contact your
local distributor.
Please visit:
http://www.vacon.com/wwcontacts.html
26
Start-up pre-
vented
- Start-up of the drive has been pre-
vented.
- Run request is ON when new applica-
tion is loaded to drive
- Cancel prevention of start-up if this
can be done safely.
- Remove Run Request.