Omron F3SG-SR/PG Manual page 70

PSDI Sequence Error Indication
The following table is applied only when the PSDI function is being enabled.
SEQ indicator
Blinking: Once
Blinking: Twice
Blinking: Three times
Blinking: Four times
Notations
...Single Break
...Double Break
...Common
Error
condition
Power supply may have been turned ON with PSDI input being OFF.
Check the condition of the light curtains and PSDI input wiring.
Power supply may have been turned ON with the light curtain blocked.
Check the condition of the light curtains and PSDI input wiring.
Power supply may have been turned ON with RESET input being OFF.
Check the condition of the light curtains and RESET input wiring.
PSDI input may have been turned OFF before RESET input was turned OFF.
Check the PSDI input wiring.
The light curtain may have been blocked before RESET input was turned ON.
Check the condition of the light curtains and RESET input wiring.
The PSDI input may have turned OFF while the RESET input is OFF.
Check the condition of the light curtains and PSDI input wiring.
The light curtain may have been blocked before RESET input was turned ON.
Check the condition of the light curtains and RESET input wiring.
After RESET input , the light curtain may not be blocked longer than T2 and the PSDI input may
have turned OFF.
Check the condition of the light curtains and RESET input wiring.
The PSDI input may have turned OFF with the light curtain blocked.
Check the condition of the light curtains and PSDI input wiring.
PSDI input may have turned OFF before the light curtain blocked twice.
Check the condition of the light curtains and PSDI input wiring.
The light curtain was blocked before the PSDI input turned OFF.
Check the condition of the light curtains and PSDI input wiring.
The light curtain was blocked while the PSDI input turned OFF.
Check the condition of the light curtains and PSDI input wiring.
PSDI input may have turned OFF during the period from when the PSDI state is canceled until the
light curtain blocked.
Check the condition of the light curtains and PSDI input wiring.
The PSDI input may have turned OFF with the light curtain blocked.
Check the condition of the light curtains and PSDI input wiring.
It may have taken T4 (= 30 s) or longer for PSDI input to be turned OFF after the light curtain
blocked.
Check the condition of the light curtains and PSDI input wiring.
It may have taken T6 (= 30 s) or longer for PSDI input to be turned OFF after the light curtain
blocked.
Check the condition of the light curtains and PSDI input wiring.
The PSDI input may have turned OFF again before the light curtain blocked.
Check the condition of the light curtains and PSDI input wiring.
It may have taken T6 (= 30 s) or longer for PSDI input to be turned OFF after the light curtain
blocked twice.
Check the condition of the light curtains and PSDI input wiring.
PSDI input may have turned OFF before the light curtain blocked again.
Check the light curtain status and PSDI input wiring.
Cause and measures
F3SG-SR/PG
70