130 Rockwell Automation Publication 1734-UM013C-EN-P - August 2010
Chapter 9 Status Indicators
Power
Safe Input Status
(1734-IB8S module)
Safe Output Status
(1734-OB8S module)
Indicator Status Description Recommended Action
PWR Off No field power applied. Apply field power.
Green Normal condition, field power supplied and within
specification.
None.
Yellow Field power out of specification. Check your connectors, wiring, and voltages.
Indicator Status Description Recommended Action
0…7 Off Safety input is off, or module is being configured. Turn the safety input on or reconfigure the channel, if
desired.
Yellow Safety input is on. None.
Red A fault in the external wiring or input circuit has been
detected.
Check configuration, field wiring, and devices. If no
problem found, replace module.
Flashing red A fault in the partner input circuit of a dual-input
configuration has been detected.
Check the field wiring and verify your configuration for the
partner circuit. If no problem found, replace module.
Indicator Status Description Recommended Action
0…7 Off Safety output is off, or module is being configured. Turn the safety output on or reconfigure the channel, if
desired.
Yellow Safety output is on. None.
Red A fault in the output circuit has been detected. Check the circuit wiring and end device. If no problem
found, replace module.
The tag values in a dual output configuration do not have
the same value.
Make sure logic is driving tag values to the same state (off
or on).
Flashing red A fault in the partner output circuit of a dual-output
configuration has been detected.
Check the circuit wiring and end device of the partner. If no
problem found, replace module.
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