Vacon NXP Series User Manual page 100

FAULT TRACING
8 System fault
9 Undervoltage
10 Input line
supervision
11 Output phase
supervision
12 Brake chopper
supervision
13 Frequency con-
verter under-
temperature
14 Frequency con-
verter over-
temperature
15 Motor stalled
16 Motor over-
temperature
17 Motor
underload
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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)
DC-link voltage is under the voltage
limits defined in Table 4-5.
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
Input line phase is missing.
Subcode in T.14:
S1 = Phase supervision diode supply
S2 = Phase supervision active front end
Current measurement has detected that
there is no current in one motor phase.
no brake resistor installed
brake resistor is broken
brake chopper failure
Heatsink temperature is under –10 C
Heatsink temperature is over 90 C
Overtemperature warning is issued
when the heatsink temperature exceeds
85 C.
S1 = Measurement
S2 = Internal thermistor
Motor stall protection has tripped.
Motor overheating has been detected by
frequency converter motor temperature
model. Motor is overloaded.
Motor underload protection has tripped.
vacon • 99
Reset the fault and restart.
Should the fault re-occur, contact your
local distributor.
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.
Check supply voltage, fuses and cable.
Check motor cable and motor.
Check brake resistor and cabling.
If ok, the chopper is faulty. Contact your
local distributor.
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.
Check motor and load.
Decrease the motor load.
If no motor overload exists, check the
temperature model parameters.
Check load.