Wenglor SS2-00VA000R3, Operating Instructions Manual

Page: 19 / 37

19
Terminal Designation
Input/
Output
Further
Information
Terminal Designation
Input/
Output
Further
Information
1 Muting input 1 I p. 23, section 6.2 13 0 V – –
2 Muting input 2 I p. 23, section 6.2 14 PE (ground) – –
3 24 V DC – – 15 Acknowledgement input I p. 18, section 4.2
4 Muting duration 1 I p. 24, section 6.3 16 Test input I p. 18, section 4.1
5 Muting duration 2 I p. 24, section 6.3 17 S1 NO contact I –
6 Restart inhibit I
p. 19, section
4.2.3
18 S2 NO contact I –
7 Override 1 I p. 26, section 7 19 S2 test O –
8 Override 2 I p. 26, section 7 20 Contactor monitoring I p. 20, section 4.3
9 S1 test O – 21 Signal control O –
10 Muting signal O p. 22, section 5.3 22 OSSD B contact 2 O –
11 Muting enable I – 23 OSSD A contact 1 O –
12 OSSD B contact 1 O – 24 OSSD A contact 2 O –
4.2.3 Restart Inhibit
In this operating mode, the control unit’s outputs are only activated if the safety field is unobstructed and the cor-
responding signal has been received at the unit’s acknowledgement input (terminal 15) from a pushbutton, or by
means of an appropriate command, for example from a PLC. After penetration into the protected area, the relay
outputs are deactivated, and can only be reactivated by means of the above described procedure.
A slope from 0 V to 24 V DC at the acknowledgment input serves as the acknowledgement signal.
The 24 V DC signal must be applied for at least 100 ms. The maximum current value is 20 mA.
These values are of special importance if transmission of the acknowledgement input signal will be managed auto-
matically, for example by a PLC. An external NO pushbutton can be used to manually generate the acknowledge-
ment input signal.
The system’s power-up delay time results from the sum of the power-up delay times of the control unit (150 ms) and
any K1/K2 auxiliary contact elements which might be used.
Acknowledgement must originate from outside of the protected area, from a location at which the protected area
and all of the effected working area can be clearly observed.
The button for the acknowledgement input may not be accessible from inside the protected area.
Restart