Plc - Husqvarna DC 6000 Workshop Manual

8 FUNCTION TEST

PLC

The PLC is powered by the 230 V transformer and is used to control the on/off function for the blower. And the
manual/automatic purge function. Its input is controlled by the settings on the control panel. And its output is a
230 V control signal for the purge solenoid and to the blower. If the Purge settings are in manual mode the PLC will
only send a 230V Purge signal to the solenoid valve when the Manual Purge button S3. When the Purge setting is in
automatic mode the PLC will used is program settings to control the Purge function. The Purge will then clean the
filter each time the blower is turned on and off, and for every 60 seconds during its running time..
20