德国西克安全限位开关,施克安全限位开关
After the application of the supply voltage the system is ready
for operation. If the safety door is closed and K1 and K2 are
de-energised and functioning correctly, the OSSDs on the
UE43-2MF are switched on by pressing and releasing the
button S1. The outputs (contacts 13-14 and 23-24) energise
the contactors K1 and K2. If the safety door is opened, both
channels in the UE43-2MF are shutdown. The UE43-2MF deenergises
the contactors K1 and K2.
德国西克安全限位开关,施克安全限位开关

The erroneous behaviour of one of the contactors K1 or K2
will be detected. The shutdown function is retained. On manipulation
(e.g. jamming) of the button S1 or a short-circuit in
the button‘s circuit, the system will not re-enable the output
current circuits. On the occurrence of a short-circuit on one of
the contacts on one of the safety position switches,