Vacon 20 x, Инструкция по установке, техническому обслуживанию и ремонту

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8
8.5 Fault tracing
Fault
code
Fault name Possible cause Remedy
1 Overcurrent
AC drive has detected too high a current
(>4*I
H
) in the motor cable:
• sudden heavy load increase
• short circuit in motor cables
• unsuitable motor
Check loading.
Check motor.
Check cables and connections.
Make identification run.
Check ramp times.
2
Overvoltage
The DC-link voltage has exceeded the lim-
its defined.
• too short a deceleration time
• brake chopper is disabled
• high overvoltage spikes in supply
• Start/Stop sequence too fast
Make deceleration time longer.
Use brake chopper or brake resis-
tor (available as options).
Activate overvoltage controller.
Check input voltage.
3
Earth fault
Current measurement has detected that
the sum of motor phase current is not
zero.
• insulation failure in cables or motor
Check motor cables and motor.
8
System fault
Component fault
Malfunction
Reset the fault and restart.
Should the fault re-occur, contact
the distributor near to you.
9
Undervoltage
DC-link voltage is under the voltage limits
defined.
• most probable cause: too low a sup-
ply voltage
• AC drive internal fault
• defect input fuse
• external charge switch not closed
NOTE!
This fault is activated only if the
drive is in Run state.
In case of temporary supply volt-
age break reset the fault and
restart the AC drive. Check the
supply voltage. If it is adequate, an
internal failure has occurred.
Contact the distributor near to
you.
13
AC drive under-
temperature
Too low temperature measured in power
unit’s heatsink or board. Heatsink temper-
ature is under -10°C.
Check the ambient temperature.
14
AC drive overtem-
perature
Too high temperature measured in power
unit’s heatsink or board. Heatsink temper-
ature is over 100°C.
Check the correct amount and
flow of cooling air.
Check the heatsink for dust.
Check the ambient temperature.
Make sure that the switching fre-
quency is not too high in relation
to ambient temperature and
motor load.
15
Motor stalled Motor is stalled. Check motor and load.
16
Motor overtemper-
ature
Motor is overloaded.
Decrease motor load.
If no motor overload exists, check
the temperature model parame-
ters.
17
Motor Underload Motor is under loaded Check load.
19
Power overload Supervision for drive power
Drive power is to high: decrease
load.
Table 27. Fault codes and descriptions.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com