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 frequency converter will have tripped. Alarms must be reset to restart operation once their cause has been rectified.

This may be done in three ways:

By using the [RESET] control button on the Keypad control panel.

Via a digital input with the "Reset" function.

Via serial communication/optional network.

NB!

After a manual reset using the [RESET] button on the Keypad, the [AUTO] 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).

Alarms that are trip-locked offer additional protection, meaning that the mains supply must be switched off before the alarm can be reset. After being switched

back on, the frequency converter is no longer blocked and may be reset as described above once the cause has been rectified.

Alarms that are not trip-locked can also be reset using the automatic reset function in par. H-04 Auto-Reset (Times) (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 else that you can

specify whether it is a warning or an alarm that is to be displayed for a given fault.

This is possible, for instance, in par. F-10 Electronic Overload. After an alarm or trip, the motor carries on coasting, and the alarm and warning flash. Once the

problem has been rectified, only the alarm continues flashing until the frequency converter is reset.

AF-650 GP Programming Guide

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