Automatic Divider-rounder model Syncro
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Use and maintenance manual (translation of the original instructions) - MASA6_en_2 of 23/03/2021
4.9 BYPASSING THE MAIN DOOR LIMIT SWITCH
The coded magnetic sensor for detecting the closure of the main door of the machine, installed on the
front of the machine itself, is a SAFETY device fitted on the machine. Therefore, under standard use
conditions during production, cleaning as well as routine maintenance, it must be possible to start the
machine only with the aforementioned door closed: if this condition is not guaranteed, switch off the
machine and contact the maintenance staff.
The technical by-pass of the aforementioned sensor must be carried out by technical personnel
qualified to carry out maintenance work, installation and extraordinary maintenance. Once said
operations have been completed, and before restarting the machine, the efficiency of the limit switch
must be guaranteed to restart the machine only with the main door in working position.
The coded sensor that detects the closing position of the main door enabling the machine to start, is made up of
a base element, installed on the right door, and an enabling element installed on the left door: the machine can
be restarted only if the enabling element is recognized by the coded element and their combination is coded,
which means that it cannot be bypassed by common ferromagnetic elements such as permanent magnets or
metal parts in general. A coloured LED is installed on the base element to indicate its operating status:
Green: enabled
Red: not enabled
A flashing LED indicates an enabling error: if such condition occurs, contact the technical service.
In case of extraordinary technical maintenance, it may be necessary to check and verify operation inside of the
machine, with the main front door open.
The safety system can be by-passed only and EXCLUSIVELY by technical personnel authorized to carry out
extraordinary maintenance operations.
Any operation not included in the extraordinary maintenance of the machine does not justify by-passing the
aforementioned sensor. The technician who may have deactivated the limit switch for extraordinary operations
must ensure that it is reset before leaving the equipment to be run by the user; the efficiency of the same must
also be verified.
The by-pass selector of the coded magnetic sensor
of the front door is installed inside the electrical box:
it is equipped with two identical keys, which must be
kept by the technical staff assigned to the installation
room.
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