Applications Of The Safety Switches - SICK TR4 Instrucciones De Servicio

en
Chapter 2
60
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On safety
2.2

Applications of the safety switches

The safety switches of type TR4 Direct are transponder safety switches
that are switched electrosensitively by actuators (transponders).
They monitor moveable guards as follows:
The dangerous state of the machine or system can only be switched
on when the guards are closed.
If a guard is opened when the machine is running, a stop command
is triggered.
For the control this means:
Switch on commands that produce dangerous states are only allowed
to become effective when the guards are closed.
Dangerous states must be brought to an end before the protective
setting is removed or a guard is opened.
Prior to the use of the safety switches, a risk assessment must be per-
formed on the machine in accordance with the following standards:
EN ISO 13 849J1: Safety-related parts of control systems
EN 12 100: Safety of machinery, basic concepts
EN 62 061: Safety of machinery — Functional safety of safety-related
electrical and programmable electronic control systems
Correct use includes observance of the applicable requirements on
installation and operation, in particular in accordance with the following
standards:
EN ISO 14 119: Safety of machinery – Interlocking devices
associated with guards
EN ISO 13 855: Safety of machinery. The positioning of protective
equipment in respect of approach speeds of parts of the human body
EN 60 204J1: Electrical equipment of machines
EN 60 947J5J3: Specification for low-voltage switchgear and control-
gear — Control circuit devices and switching elements
The safety switches must be regularly subjected to a technical inspec-
tion as per section 2.4 "General safety notes and protective measures".
Operating Instructions
TR4
8014467/YIJ2/2015-03-02
Subject to change without notice