INDUSTRIAL SHREDDER
Instruction manual for use and maintenance
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5.3
ADJUSTMENTS ON BOARD OF THE SHREDDER (EXCEPT SERIES
WITH CONTROLLER PLC)
CAUTION
Since the adjustments on the electronic controls are particularly delicate they are
carried out only by the manufacturer at the machine start-up.
Should it be necessary to modify these adjustments, please contact our Technical
Department before proceeding. Problems caused to adjustments not authorized
by intimus International GmbH will cancel any guarantee on the machine.
All the machine working stages are controlled by a PC board, as shown in the figure. The machine
overload signal is given by a saturable current transformer, whose primary winding consists of one of
the motor’s feeding phases.
When an overload occurs, an automatic reverse cycle of the blades begins (reverse rotation of shafts)
whose tuning can be adjusted through the potentiometer P2 from a minimum of 6 to a maximum of
11 seconds.
The sensitivity of the reverse device is adjusted through the potentiometer P1: turning it in
anticlockwise, sensitivity increases, i.e. the automatic reversal comes about at a lower load level. Vice
versa, sensitivity decreases.
Figure 5-2 – P.C. Board E897
