Troubleshooting
Troubleshooting
Alarms and Warnings
A warning or an alarm is signaled by the relevant LED on the front of the adjustable frequency drive and indicated
by a code on the display.
A warning remains active until its cause is no longer present. Under certain circumstances operation of the
motor may still be continued. Warning messages may be critical, but are not necessarily so.
In the event of an alarm, the adjustable frequency drive will have tripped. Alarms must be reset to restart op-
eration once their cause has been rectified.
This may be done in four ways:
1. By using the [RESET] control button on the keypad.
2. Via a digital input with the “Reset” function.
3. Via serial communication/optional serial communication bus.
4. By resetting automatically using the [Auto Reset] function, which is a default setting for TR200 Drive, see
par.14-20
Reset Mode.
NOTE: After a manual reset using the [RESET] button on the keypad, the [AUTO ON] or [HAND ON] button must
be pressed to restart the motor.
If an alarm cannot be reset, the reason may be that its cause has not been rectified, or the alarm is trip-locked
(see also table on following page).
WARNING
Alarms that are trip-locked offer additional protection, means that the line power supply must be switched off before
the alarm can be reset. After being switched back on, the adjustable frequency drive
is no longer blocked and may be
reset as described above, once the cause has been rectified.
Alarms tha
t are not trip-locked can also be reset using the automatic reset function in par.14-20
Reset Mode (Warning:
automatic wake-up is possible!)
If a warning and alarm is marked against a code in
the table on the following page, this means that either a warning
occurs before an alarm, or it can b
e specified whether it is a warning or an alarm that is to be displayed for a given fault.
This is pos
sible, for instance, in par.1-90
Motor Thermal Protection. After an alarm or trip, the motor carries on coasting,
and the alarm and war
ning flash on the adjustable frequency drive. Once the problem has been rectified, only the alarm
cont
inues flashing.
TR200 Programming Guide 5-1
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