Rockwell Automation Publication 440R-UM010C-EN-P - September 2016 29
Chapter 5
Diagnostic Status Indicators and
Troubleshooting
The GLT safety relay has five status indicators to provide operating status and
diagnostic information.
Status Indicators During
Powerup
During powerup, the status indicators turn ON and OFF during their self-
check process. The self-check takes about 3 seconds.
Status Indicators During
Normal Operation
Table 6 - Normal Operation Status Indicators
Status
Indicator
State Description
PWR/FAULT Solid Green Normal operation
Blinking Red See Status Indicators During Diagnostics
for possible faults. Correct
fault and cycle power
Green with Blinking
Red
See Status Indicators During Diagnostics for possible faults. Correct
fault and press reset
IN ON Input circuits at S12 and S22 are closed
OFF Input circuits at S12 and S22 are open
51/L61 ON Gate is locked
OFF Gate is unlocked
Blinking Timing cycle has started
LOGIC IN ON Logic IN signal at L12 is active
OFF Logic IN signal at L12 is OFF
OUT ON L11 is active and 14/24 are ON
Y32 is ON
OFF Outputs are OFF
Blinking Waiting for reset signal or timing cycle has started
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