Troubleshooting; Warnings/Alarm Messages - Danfoss VLT AutomationDrive FC 300 Design Manual

FC 300 Design Guide

Warnings/Alarm Messages

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A warning or an alarm icon appears in the display as well as a text string describing the problem. A warning is
shown on the display until the fault has been corrected, while an alarm will continue to flash on the LED until
you activate the [RESET] key. The table (next page) shows the various warnings and alarms, and whether the
fault locks the FC 300. After an Alarm/Trip locked, cut off the mains supply and correct the fault. Reconnect
mains supply. The FC 300 is now unlocked. The Alarm/Trip can be reset manually in three ways:
Via the operating key [RESET] on the LCP.
1.
Via a digital input.
2.
3. Via serial communication/optional Fieldbus.
You can also choose an automatic reset in par. 14-20 Reset Mode. When an X appears in both
warning and alarm, it means that either a warning comes before an alarm or that you can define
whether a warning or an alarm appears for a given fault. For example, this is possible in par. 1-90
Motor Thermal Protection. After an alarm/trip, the motor will remain coasted, and alarm and warning
will flash on the FC 300. If the fault disappears, only the alarm will flash.
NB!:
After a manual reset via the [RESET] key on the LCP, it is necessary to push
the [AUTO ON] key to restart the motor!
MG.33.B4.02 - VLT is a registered Danfoss trademark
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