Omron Sti SR120MP Operating Instructions Manual

Rev. 6.05
Safety
Technology
& Innovation
SR120MP, SR220MP
Operating Instructions for SR20MP and SR220MP Safety Monitoring Relays
R
Headquarters
Scientific Technologies Inc.
5660 Dumbarton Circle, Fremont CA 94555-3605
Tel: 1/510/608-3400 (Int. +510/608-3400)
Fax: 1/510/744-1442
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www.sti.com
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© 2005 STi Literature PN 99416-0010
Safety relay for monitoring EMERGENCY STOP and safety
circuits according to EN 48 / EN 60204-
Module de surveillance pour circuits d'ARRET
et de sécurité selon EN 48 / EN 60204-
Überwachungsbaustein für NOT-AUS und
gemäß EN 48 / EN 60204-
Dimensions / Encombrements / Maße
SR20MP
SR220MP
/0
D'URGENCE
Sicherheitskreise
SR220MP
Terminal marking / Repérage des bornes / Klemmenanzeiger
SR20MP
Application
Safety systems are comprised of many components. No one safety
component will insure the safety of the system. The design of the complete
safety system should be considered before you begin. It is very important
to follow applicable safety standards when installing and wiring these
components.
The module SR120/220MP provides interruption of one or several circuits
and is designed to be integrated into the following applications:
• Monitoring of emergency stop circuits.
• Monitoring of limit switches on protective guards.
• Monitoring of short-circuit generating footmats or pressure sensitive rails.
• Monitoring the OSSD of type 4 safety lightcurtains with
semiconductor outputs according to EN 61496-1.
The module provides three safety outputs of stop category 0
(EN 418, EN 60204-1) as well as one NC contact and four semiconductor
outputs for signalling purposes.
The module is designed for use with one or two input channels. Due to
the extended possibilities of fault detection and resulting increased safety
level we recommend the use of two input channels. In this operation mode
the connection cables are included in the monitoring and all initial faults
will be detected.
For information about wiring diagrams as well as the functional diagrams for
each individual safety function please refer to page 3/10 - 8/10.
An internal electronic fuse protects the module against destruction by
external short circuits (e. g., short circuits between the + and the - of the
input circuits). After elimination of the fault, the module is again operative
after a few seconds.
It is imperative that an external fuse be connected as shown on the
"WIRING DIAGRAM FOR MODULE SR120/220MP SAFETY RELAY". For
maximum protection of the outputs, please refer to "TECHNICAL DATA".
SR220MP