Protective door monitoring with 3SE53 tumbler (locking device) on ET 200eco PN-F
The machine can only be started when the protective door is closed and locked. If the protective door is opened during operation or a fault is detected, the machine is safely shut down.
SF1 "protective door monitoring":
If the protective door is opened, the machine is safely shut down.
SF2 "protective door locking":
The protective door is kept locked until the machine has stopped.
To achieve the required safety for both safety functions, the position of the protective door is monitored with a 3SE53 safety switch and also locked via an integrated tumbler (locking device) in the safety switch. The safety switch is connected to the ET 200eco PN-F via the inverted Y-cable 6ES7194-6KC00-0XA0 and is evaluated for discrepancy and cross circuit with an F-CPU.
There are two versions of the position switch in which different SIL / PL are achieved for the two safety functions:
|Version||Position switch||Properties of the safety function|
SF1: max. SIL 2 / PL d
|2||3SE5324-0SD21-1AE5||SF1: max SIL 2 / PL d|
SF2: max. SIL 1 / PL c
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