FC 300 Instruction Manual
Warnings and Alarms
" Warnings/Alarm Messages
A warning or an alarm is signaled by the relevant LED on th
e front of the adjustable
frequency drive and indicated by a code on the display.
A warning remains active until it s 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 f requency drive will have tripped. Alarms must be reset to
restart operation once their cause has bee
n rectified. This may be done in three ways:
1. By using the [RESET] control button on the LCP control panel.
2. Via a digital input with the “Reset” function.
3. Via serial communication/optional ser
ial communication bus.
NOTE
After a manual reset using the [RESET] button on the LCP, the [AUTO ON]
button mus t be pressed to r estart the m otor.
If an alarm cannot be reset, the reason may be that its cause has not been rec tified, or
the alarm is trip-locked (see al
so table on f oll o wing page).
Alarms that are trip-locked of
fer additional protection, meaning that the line supply must be switched
off before the alarm can be reset. After being switched back on, the FC 300 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
parameters 1 4-2 0 (Warni
ng: 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 disp layed for a given fault.
59
MG.33.A6.22 - VLT is a registered Danfoss trademark
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