10 TROUBLESHOOTING
10.1 Checking Errors with LEDs
117
10
*1 The ERROR LED flashes rapidly and repeatedly at regular intervals.
LEDs on an FX5-SF-8DI4
Q2/Q3 LED Green Indicates the output statuses of Q2 and Q3.
ON: Output ON
Flashing: In lapse of off delay time
OFF: Output OFF
X0 LED Green Indicates the input status of X0.
ON: Input ON
Flashing: Input OFF (by restart interlock or EDM)
OFF: Input OFF
X1 LED Green Indicates the input status of X1.
ON: Input ON
Flashing: Input OFF (by restart interlock or EDM)
OFF: Input OFF
X2 LED Green Indicates the input status of X2.
ON: Output ON
Flashing: Input OFF (by restart interlock or EDM)
OFF: Input OFF
XS0 LED Green Indicates the input status of XS0.
ON: Input ON
OFF: Input OFF
LED name LED color Description
POWER LED Green Indicates the power supply status.
ON: Normal operation
Flashing: The rotary switch setting was changed during operation.
OFF: Powered OFF
ERROR LED
*1
Red Indicates an error status.
ON: An error occurred in any one of the safety extension modules.
Flashing (two times): Failed to apply the settings to the safety extension module.
Flashing (three times): The rotary switch setting was changed during operation.
Flashing (four times): Any of the following errors occurred.
• The module was powered ON after the rotary switch setting has been changed in the power OFF state.
• The ENTER button is pressed for three seconds or more.
• A setting was not applied after changing the position of a module.
Flashing (five times): A power supply error occurred.
Flashing (six times): A self-monitoring error or an internal error occurred.
OFF: No error
I0 LED Green Indicates the input status of I0.
ON: Input ON
Flashing: A process error occurred or synchronous time (1500ms) was exceeded.
Flashing (I0 and I1 flash in phase): A cross-circuit occurred between I0 and I1.
OFF: Input OFF
I1 LED Green Indicates the input status of I1.
ON: Input ON
Flashing: A process error occurred or synchronous time (1500ms) was exceeded.
Flashing (I0 and I1 flash in phase): A cross-circuit occurred between I0 and I1.
OFF: Input OFF
I2 LED Green Indicates the input status of I2.
ON: Input ON
Flashing: A process error occurred or synchronous time (1500ms) was exceeded.
Flashing (I2 and I3 flash in phase): A cross-circuit occurred between I2 and I3.
OFF: Input OFF
I3 LED Green Indicates the input status of I3.
ON: Input ON
Flashing: A process error occurred or synchronous time (1500ms) was exceeded.
Flashing (I2 and I3 flash in phase): A cross-circuit occurred between I2 and I3.
OFF: Input OFF
I4 LED Green Indicates the input status of I4.
ON: Input ON
Flashing: A process error occurred or synchronous time (1500ms) was exceeded.
Flashing (I4 and I5 flash in phase): A cross-circuit occurred between I4 and I5.
OFF: Input OFF
LED name LED color Description
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