14 TROUBLESHOOTING
14.1 Troubleshooting with the LEDs
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14
14 TROUBLESHOOTING
This chapter describes errors that may occur in the use of the R60AD8-G and those troubleshooting.
14.1 Troubleshooting with the LEDs
By checking the LED indicator status, primary diagnostics without the engineering tool can be performed to narrow down the
range of causes of error occurrences.
A state of the R60AD8-G can be checked with the RUN LED, ERR LED, ALM LED, and S MODE LED. The following table
shows the correspondence of these LEDs and a state of the R60AD8-G.
*1 For details, refer to the following.
Page 320 List of Error Codes
*2 For details, refer to the following.
Page 258 Safety module operation
Name Description
RUN LED Indicates the operating status of the module.
On: Normal operation
Off: 5V power off or a watchdog timer error occurred.
ERR LED Indicates the error status of the module.
*1
On: An error occurred (minor error).
Flashing: An error occurred (moderate error).
Off: Normal operation
ALM LED Indicates the wait-for-restart status after the safety module is enabled.
Flashing (400ms cycles): Wait-for-restart
Off: Normal operation
S MODE LED Indicates the operating status of the module (SIL2 mode).
On: SIL2 A/D conversion is ongoing.
Flashing (1s cycles): SIL2 A/D conversion is stopped.
Flashing (400ms cycles): Executing the module position check
*2
Off: Operating in standard mode
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