Emergency Off Connection, Single-Channel; Figure 21: Connection 4 X Emergency Off, Single-Channel, Short Circuit Test Active; Figure 22: Connection 4 X Emergency Off, Single-Channel, Short Circuit Test Not - WAGO 750-666/000-003 Manual

58 Connect Devices
6.3.1.1

Emergency Off Connection, Single-channel

Achievable SIL, Cat./PL for single-channel use of the digital inputs!
The achievable SIL, Cat./PL depends on the quality of the safe sensors. This must
be certified according to EN 60947-5-1 /-5.
Pay attention to the protected installation of signal lines!
To prevent a short circuit between the connecting cables of the safe sensors and
the PROFIsafe I/O module, the signal lines must be installed protected between
the safe sensor and the PROFIsafe I/O module according to EN 60204-1 or EN
ISO 13849-2 (e.g., as separate sheathed lines or in separate cable ducts).

Figure 21: Connection 4 x emergency off, single-channel, short circuit test active

Figure 22: Connection 4 x emergency off, single-channel, short circuit test not active
For simple emergency off applications without signal fault security, you can use a
digital input for your safety function.
750-666/000-003 4FDI/2FDO 24V/10A PROFIsafe V2 iPar
Version 1.2.0, valid from HW/SW Version 01/01
WAGO-I/O-SYSTEM 750
Manual