Jetter JM-35 S1 Series, Manual, Page: 60 / 124

Example 4:
STO operation via light
barrier with OSSD outputs
Operation directly via ESPD (Electro-Sensitive Protective Device) with
OSSD outputs.
CH 1
M1
3~
CH 2
M2
3~
M3
3~
3 3 3
STOx CH1
STOx CH2
GND
OSSD1
OSSD2
+24V DC
GND
X11
Fig. 7 STO operation via light barrier with OSSD outputs
NOTES FOR EXAMPLE 4, 5 AND 6
The failure “Short circuits on the OSSD outputs to +24 V DC and other
outputs” must be detected by the external safety relay by means of suitable
diagnostics measures and there must be an appropriate reaction.
The failure “Simultaneous short circuit on both outputs to +24 V DC” must
be excluded by means of suitable design of the wiring.
60 Jetter AG
Wiring and commissioning JetMove 3000