After the protective device has been tripped, the operator must press a reset pushbut‐
t
on to return the protective device to monitoring status. Then, in a second step, the
operator can restart the machine.
3.2.6 External device monitoring (EDM)
The T4000 Multi transponder safety switch has an external device monitoring (EDM)
f
unction. The function can be taught in during commissioning.
External device monitoring (EDM) monitors the status of downstream contactors.
In order to use external device monitoring, positively guided contactors must be used to
switch off the machine. If the auxiliary contacts of the positively guided contactors are
connected to the external device monitoring, the external device monitoring checks
whether the contactors drop out when the safety outputs are switched off.
If the contactors do not drop out, the T4000 Multi transponder safety switch will pre‐
vent the protective device from being reset.
3 P
RODUCT DESCRIPTION
12
O P E R A T I N G I N S T R U C T I O N S | T4000 Multi 8022726/2019-05-07 | SICK
Subject to change without notice
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