Festo CMMP-AS M0 Series, Руководство пользователя

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Festo — CMMP-AS-...-M0 — 2022-07c
Assembly and installation
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4.3 Sample circuits
4.3.1 Safe Torque Off (STO)
1
2
3
4
5
Fig. 6: Connection of the integrated safety function, example single-phase motor controller CMMP-
AS-...-3A-M0
1 Motor controller with safety function (only
relevant connections represented)
2
Emergency stop switch
3
Safety door
4 Light curtain
5 Safety relay unit
The "Safe Torque Off" (STO) safety function can be requested by various devices. For example, the
switch S1 may be an emergency stop switch, a safety door switch, a light curtain or a safety relay unit.
The security requirement is made in 2 channels via the S1 switch and leads to the 2-channel switch-off
of the power stage. If the power stage has been switched off, it is output by the potential-free contact
C1/C2.
Information on the sample circuit:
–
Detection of shorts across contacts is not integrated in the motor controller with integrated safety
function.
The direct wiring of light curtains means that detection of shorts across contacts is implemented by
the light curtain, if it is designed for this purpose.
–
When using safety relay units, contact C1, C2 can be integrated into the feedback circuit of the
safety relay unit.