SICK TR4 Mode D'emploi page 58

en
Chapter 3
Notes
58
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
Product description
TR4 Multicoded
The TR4 Multicoded accepts all Multicode actuators.
TR4 Unique Coded
On the TR4 Unique Coded a Unique Coded actuator must be taught-in
during commissioning. From then on the TR4 Unique Coded only ac-
cepts this actuator.
Up to eight actuators can be taught-in on the TR4 Unique Coded.
The TR4 Unique Coded only ever accepts the last actuator taught-in.
The TR4 Unique Coded can be locked at any time. It is then no longer
possible to teach-in a new actuator. Only the last actuator taught-in is
valid.
See also section 6.2 "Teach-in (TR4 Unique Coded)" on page 72.
Error recognition
Any errors that occur, including internal device errors, are detected on
the next request to close the safety contacts (e.g. on machine start).
The safety switch then switches to the safe state. If errors are detected,
the safety circuit is switched off and the Status/Diag LED indicates an
error (see Tab. 5 on page 81).
Cascading
TR4 safety switches can be used separately or in a cascade (series
connection).
The number of safety switches in a cascade is almost unlimited. How-
ever this configuration has an effect on the response time (see sec-
tion 9.1.2 "Response time for multiple cascaded TR4 safety switches"
on page 83). Ideally the number of safety switches in a cascade is limi-
ted to a maximum of 30 devices.
Only safety switches with inputs In A and In B can be used in a cascade,
i.e. only safety switches with cable (TR4-S....P) or an 8-pin M12 connec-
tion plug (TR4-S..01C).
Safety switches of type TR4-S..02C have only a 5-pin M12 connection
plug and can therefore only be used individually.
Operating Instructions
TR4
8014465/YIJ2/2015-03-02
Subject to change without notice