Fault Codes - Vacon 100 flow Applications Manual

Fault tracing
9.3

Fault codes

Fault Fault
Fault name
code ID
Overcurrent
1
(hardware fault)
1
Overcurrent
2
(software fault)
Overvoltage
10
(hardware fault)
2
Overvoltage (soft-
11
ware fault)
Earth fault (hard-
20
ware fault)
3
Earth fault (soft-
21
ware fault)
Charging switch
5 40
Saturation
7 60
24-hour support +358 (0)201 212 575 • Email: vacon@vacon.com
Table 133. Fault codes and descriptions
Possible cause
AC drive has detected too high a cur-
rent (>4*I ) in the motor cable:
H
• sudden heavy load increase
• short circuit in motor cables
• unsuitable motor
• parameter settings are not properly
made
The DC-link voltage has exceeded the
limits defined.
• too short a deceleration time
• high overvoltage spikes in supply
Current measurement has detected
that the sum of motor phase current is
not zero.
• insulation failure in cables or motor
• filter (du/dt, sinus) failure
Charging switch is closed and the feed-
back information still is 'OPEN'.
• faulty operation
• component failure
Various causes:
• IGBT does not execute its operation
(is defective)
• de-saturation short-circuit in IGBT
• brake resistor short-circuit or over-
load
vacon • 255
Remedy
Check loading.
Check motor.
Check cables and connections.
Make identification run.
Set acceleration time longer
(P3.4.1.2/ P3.4.2.2).
Set deceleration time longer
(P3.4.1.3/P3.4.2.3).
Activate overvoltage controller.
Check input voltage.
Check motor cables and motor.
Check filters.
Reset the fault and restart.
Check the feedback signal and
the cable connection between
the control board and the power
board.
Should the fault re-occur,
contact the distributor near to
you.
Cannot be reset from keypad.
Switch off power.
DO NOT RESTART or
RE-CONNECT POWER!
Contact factory.
9