Rockwell Automation Publication 5094-UM001C-EN-P - April 2019 39
Digital I/O Module Operation in a Logix 5000 Control System Chapter 1
Safety Precautions
Observe these precautions for the proper use FLEX 5000 I/O safety modules.
For more information about safety precautions, see
Secure Access to the
System on page 19.
Installing and Replacing Modules
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: As serious injury can occur due to loss of required safety
function, follow these safety precautions.
• Never use test outputs as safety outputs. Test outputs are not safety outputs.
• Do not use standard I/O data or explicit message data as safety data.
• Do not use light-emitting diode (LED) status indicators on the I/O modules
for safety operations.
• Do not connect loads beyond the rated value to the safety outputs.
• Apply properly specified voltages to the module. Applying inappropriate
voltages can cause the module to fail to perform its specified function,
which could lead to loss of safety functions or damage to the module.
• Wire the FLEX 5000 I/O safety modules as shown in the FLEX 5000
Technical Data, publication 5094-TD001
.
• Set unique network node addresses before connecting devices to the
network.
• Perform testing to confirm that device wiring, configuration, and operation
is correct before starting system operation.
• Do not disassemble, repair, or modify the module. This can result in loss of
safety functions.
ATTENTION:
• Clear previous configuration data before connecting devices to the network
or connecting input or output power to the device.
• Configure the replacement device properly and confirm that it operates
correctly.
• After installation of the module, a safety administrator must confirm the
installation and conduct trial operation and maintenance.
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