Operating Instructions

13
2537377-02-07/21 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP/CTA-L1/2-BP
EN
7.3. Escape release
The escape release is optional on CTP devices; on CTA devices it is optional or can be retrotted.
It permits opening of a locked guard from the danger zone without tools (see chapter 14.5.1. Dimension
drawing for safety switch CTP… on page 31).
Important!
Ì It must be possible to operate the escape release manually from in-
side the protected area without tools.
Ì It must not be possible to reach the escape release from the outside.
Ì The actuator must not be under tensile stress during manual release.
Ì The escape release meets the requirements of Category B according
to ENISO13849-1:2015.
7.3.1. Actuating escape release
Ì Press the red release knob to the end stop.
¨ Guard locking is released.
Pull the knob out again to reset.
The safety outputs are switched off when the escape release is actuated. Use the safety outputs to generate a stop command.
The guard locking signal OL is switched off; the door position signal OD can assume an undened state. Open the guard
and close it again after resetting the escape release. The device will then operate normally again.
7.4. Wire front release (bowden)
Release via a pull wire. Depending on the type of attachment, the wire front release can be used as an emergency release
or escape release.
The following applies to non-latching wire front releases.
If the release is to be used as an emergency release, one of the following measures must be
taken (see EN ISO 14119:2013, section 5.7.5.3):
Ì Install the release so that it can be reset only with the aid of a tool.
Ì Alternatively, resetting can be realized at the control-system level by means of a plausibility
check (status of the safety outputs does not match the guard locking control signal), for
example.
The emergency-release specications in chapter 7.2 on Page 12 apply irrespective of this
information.
Important!
Ì The wire front release meets the requirements of Category B accord-
ing to ENISO13849-1:2015.
Ì The correct function depends on the laying of the pull wire and the
attachment of the pull handle. The plant manufacturer is responsible
for proper installation; the notes from chapter 7.4.1 on Page 14
must be observed.
Ì The actuator must not be under tensile stress during manual release.