Safety system

A trapped key interlocking system
from Castell has reduced downtime
from the bacon-slicing process at
Uniq Prepared Foods.

Uniq replaced the electrical safety
switches on its bacon slicer with a
panel-mounted KSSE20 multi-key
solenoid-controlled switch and four
AI access interlocks.

When access to the bacon slicer is
required, the machine must first
finish its cycle so that a signal is
received by the solenoid. The push
button is depressed, which energises
the solenoid and illuminates the
LED, confirming that th
Removal of the primary key
changes the condition of the
electrical supply to the machine to a
safe condition. The primary and
three secondary keys can then be
used to unlock the interlocks on the
access doors. The guards can only be
opened once the electrical supply has
been switched to a safe condition.