Blower Motor - Husqvarna DC 6000 Workshop Manual

8 FUNCTION TEST

Blower Motor

The blower motor is powered by the 400/480 V 3-phase system and is controlled by the PLC. The PLC sends a 230 V
signal to the overload protection Q1 and it engages one of the 2 power contactors K1 and K2. The phase sequence re-
lay K3 determines which one the contactors that engages according to how the phases in are connected. The overload
protection Q1 is also monitoring the power output to the motor and will shut off if its limit is reached. If the Limit
is reached the overload lamp will lit and the blower will shut off. The blower motor is connected to an hour meter
which is used to record the running time of the blower.
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