Fault Tracing; Fault Codes - Vacon NX Series Applications Manual

FAULT TRACING

10 FAULT TRACING
10.1

FAULT CODES

Fault
Fault
code
1 Overcurrent
2 Overvoltage
3 * Earth fault
5 Charging switch
6 Emergency stop
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Subcode in
Possible cause
T.14
S1 = Hard- There is too high a current
ware trip (>4*I H) in the motor cable.
Its cause can be 1 of these.
S2 =
Reserved
a sudden heavy load
•
increase
S3 = Cur-
a short circuit in the
•
rent con-
motor cables
troller
the motor is not the
•
supervision
correct type
S4 = User
configured
overcur-
rent limit
exceeded
S1 = Hard- The DC-link voltage is
ware trip higher than the limits.
S2 = Over-
too short a decelera-
•
voltage
tion time
control
high overvoltage spikes
•
supervision
in the supply
Start/Stop sequence
•
too fast
The measurement of cur-
rent tells that the sum of the
motor phase current is not
zero.
an insulation malfunc-
•
tion in the cables or the
motor
The charging switch is open,
when the START command
is given.
operation malfunction
•
defective component
•
Stop signal has been given
from the option board.
VACON · 371
How to correct the fault
Do a check of the loading.
Do a check of the motor.
Do a check of the cables and con-
nections.
Make an identification run.
Set the deceleration time longer.
Use the brake chopper or the brake
resistor. They are available as
options.
Activate the overvoltage controller.
Do a check of the input voltage.
Do a check of the motor cables and
the motor.
Reset the fault and start the drive
again.
If the fault shows again, ask
instructions from the distributor
near to you.
Do a check of the emergency stop
circuit.
10