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Allen-Bradley 1734-OB8S User Manual

Allen-Bradley 1734-OB8S
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16 Rockwell Automation Publication 1734-UM013N-EN-P - September 2017
Chapter 1 POINT Guard I/O Overview
Verify that the POINT Guard I/O firmware revision is correct before you
commission the safety system. Firmware information for safety I/O modules is
available at
http://www.rockwellautomation.com/products/certification/safety
.
Verify that a safety administrator conducts a risk assessment on the machine and
determines module suitability before installation.
TIP
Field power must be applied to the 1734-IE4S module when updating
firmware.
ATTENTION: Personnel responsible for the application of safety-related
programmable electronic systems (PES) shall be aware of the safety
requirements in the application of the system and shall be trained in the use of
the system.
ATTENTION: Use only appropriate components or devices that comply with
relevant safety standards that correspond to the required safety category and
safety integrity level.
Conformity to requirements of the safety category and safety integrity level
must be determined for the entire system.
We recommend that you consult a certification body regarding assessment of
conformity to the required safety integrity level or safety category.
You are responsible for confirming compliance with the applicable standards for
the entire system.
Table 1 - Requirements for Controlling Devices
Device Requirement Allen-Bradley® Bulletin Safety Components
Emergency stop switches Use approved devices with direct opening mechanisms that comply with IEC/EN
60947-5-1.
Bulletin 800F, 800T
Door interlocking switches,
limit switches
Use approved devices with direct opening mechanisms that comply with IEC/EN
60947-5-1 and capable of switching microloads of
24V DC, 3 mA.
Bulletin 440K, 440G, 440H for interlock switch
Bulletin 440P, 802T for limit switch
Safety sensors Use approved devices that comply with the relevant product standards, regulations,
and rules in the country where used.
Any Guardmaster® product
Relays with forcibly- guided
contacts, contactors
Use approved devices with forcibly guided contacts that comply with EN 50205. For
feedback purposes, use devices with contacts capable of switching micro loads of
24V DC, 3 mA.
Bulletin 700S, 100S
Other devices Evaluate whether devices used are appropriate to satisfy the requirements of safety
category levels.
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Allen-Bradley 1734-OB8S Specifications

General IconGeneral
BrandAllen-Bradley
Model1734-OB8S
CategoryControl Unit
LanguageEnglish

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