Rockwell Automation 1791ES-IB16 Guard I/O EtherNet/IP Safety Modules - Manual (Page 29)

Rockwell Automation Publication 1791ES-UM001D-EN-P - May 2013 29
Understand the Operation of Safety Functions Chapter 2
Safety Precautions
Legislation and Standards Read this section to familiarize yourself with related legislation and standards
information. Relevant international standards include the following:
• IEC 61508 (SIL 1-3)
• IEC 61131-2
• IEC 60204-1
• IEC 61000-6-2
• IEC 61000-6-4
The modules received the following certification from ODVA, when product is
marked.
Table 3 - Controlling Device Requirements
Device Requirement Allen-Bradley Bulletin Safety Components
Emergency stop switches Use approved devices with direct opening mechanisms complying with IEC/EN
60947-5-1. Bulletin 800F, 800T
Door interlocking switches,
limit switches Use approved devices with direct opening mechanisms complying with IEC/EN
60947-5-1 and capable of switching microloads of 24V DC 5 mA. Bulletin 440K, 440G, 440H for interlock switch
Bulletin 440P, 802T for limit switch
Safety sensors Use approved devices complying 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 complying with EN 50205. For
feedback purposes, use devices with contacts capable of switching micro loads of
24V DC 5 mA. Bulletin 700S, 100S
Other devices Evaluate whether devices used are appropriate to satisfy the requirements of
safety category levels. —
ATTENTION: As serious injury can occur due to loss of required safety function,
follow these safety precautions:
• Do not use test outputs of the modules as safety outputs.
• Do not use EtherNet/IP standard I/O data or explicit message data as
safety data.
• Do not use LED indicators on the I/O modules for safety operations.
• Do not connect loads beyond the rated value to the safety outputs.
• Wire the Guard I/O modules properly so that 24V DC line does not touch
the safety outputs accidentally or unintentionally.
• Clear previous configuration data before connecting devices to the
network.
• Set suitable IP addresses before connecting devices to the network.
• Perform testing to confirm that all of the device configuration data and
operation is correct before starting system operation.
• When replacing a device, configure the replacement device suitably and
confirm that it operates correctly.
• When installing or replacing modules, clear any previous configuration
before connecting input or output power to the device.