AS-Interface Safety at Work - SCHMERSAL - #31

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31 Note • The wiring diagram is shown with guard doors closed and in de-energised condition. • The AST module can on be used for the connection of potential-free contacts. Additional LED’s on the connecting wire are not acceptable. • Monitoring a sliding guard door using two position switches with safety function. The NC contact must have positive break when the guard door is opened. • The module AST...AS is monitored by the ASInterface. The locking solenoid is powered by an external power supply. Connection to the AS-Interface and the auxiliary power is made via a single M12 connector or via a 4-pole connecting cable. • The passive connection module (see page 35) links up the external solenoid power supply (auxiliary power supply, black cable) and the AS-i network connection (yellow cable) to a single M12 connector. A 4-wired cable makes the connection to the AST…ST6 module. • An internal output controls the solenoid operation. Depending on the interlocking device, output bit A0 locks or unlocks the actuator. Output bit A0 has the same address as the safety inputs. Wiring diagram AST 02 ST 2 BN BN BU BU AST 11 ST 6 13 14 21 22 BN BU WH BK RD GY A1 A2 Sensor connection AS-i connection Sensor connection AS-i connection z.B. AZM 170-11z R C S OR AS-Interface Safety at Work