80 • vacon
FAULT TRACING
Tel. +358 (0)201 2121 • Fax +358 (0)201 212 205
1
8
System fault
-
component failure
-
faulty operation
Note exceptional fault data record
Subcode in T.14:
S1 = Feedback of motor voltage
S2 = Reserved
S3 = Reserved
S4 = ASIC trip
S5 = Disturbance in VaconBus
S6 = Feedback of charging switch
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. Please visit:
http://www.vacon.com/wwcontacts.html
9
Undervoltage
DC-link voltage is under the voltage
limits defined in Table 4-3.
−
most probable cause: too low a
supply voltage
−
frequency converter internal fault
Subcode in T.14:
S1 = DC-link too low during run
S2 = No data from power unit
S3 = Undervoltage control supervision
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.
Contact your local distributor.
Please visit:
http://www.vacon.com/wwcontacts.html
10
Input line
supervision
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
Output phase
supervision
Current measurement has detected that
there is no current in one motor phase.
Check motor cable and motor.
12
Brake chopper
supervision
−
no brake resistor installed
−
brake resistor is broken
−
brake chopper failure
Check brake resistor and cabling.
If ok, the chopper is faulty. Contact your
local distributor.
Please visit:
http://www.vacon.com/wwcontacts.html
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.
S1 = Measurement
S2 = Internal thermistor
Check the correct amount and flow of
cooling air.
Check the heatsink for dust.
Check the ambient temperature.
Make sure that the switching frequency
is not too high in relation to ambient
temperature and motor load.
15
Motor stalled
Motor stall protection has tripped.
Check motor and load.
16
Motor over-
temperature
Motor overheating has been detected by
frequency converter motor temperature
model. Motor is overloaded.
Decrease the motor load.
If no motor overload exists, check the
temperature model parameters.
17
Motor
underload
Motor underload protection has tripped.
Check load.
