Diagnostics
76
HR9Z-B2192 8/2020
Diagnostics via LEDs
Overview
The device features various LEDs
(see page 17)
that provide status information and information
on alerts and detected errors.
Recommission the device
(see page 74)
if, during troubleshooting, you modify the position of the
application function selector, the start function selector.
LED POWER
LED STATE
This LED provides information on the state of the safety-related outputs.
LED START
This LED provides information on the start condition. Refer to the chapter Start Function
(see page 65)
for detailed information on the conditions and timing of the selected start function.
LEDs S##
These LEDs provide information on the state of the corresponding safety-related input terminal.
State Meaning
Off No power supply
Solid on Power supply on
State Meaning
Off Safety-related outputs deactivated
Solid on Safety-related outputs activated
State Meaning
Off Start condition not fulfilled
Solid on Start condition fulfilled
Flashing Waiting for start condition to be fulfilled
State Meaning
Off Safety-related input deactivated
Solid on Safety-related input activated
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