Omron F3SG-PG Series, User Manual, Page: 451 / 473

421
F3SG-SR/PG
User’s Manual
Chapter
8
Troub
le
sho
oting
Appendix
E
*1 Factory default setting
8-1-3-4. Interlock Sequence Error Indication
The following table is applied only when the pre-reset function is being enabled.
Blinking: Four times
The F3SG-SR/PG may have been blocked within 0.08 s after muting input A and B were
normally turned ON.
• Check that if the muting sensor and the F3SG-SR/PG are installed too close each other.
• Check that if the speed of the workpiece is too fast.
Muting may have been released after the F3SG-SR/PG entered the MUTING state but
before a workpiece blocked the F3SG-SR/PG.
• Check that the workpiece still remains.
• Check that the speed of the workpiece is too slow.
Blinking: Five times
The F3SG-SR/PG entered the MUTING state, but muting may have then been released
while a workpiece passes through the F3SG-SR/PG.
• Check that the workpiece still remains.
• Check that if the speed of the workpiece is too slow.
• Check that the muting sensors have been installed upstream and downstream of the
F3SG-SR/PG with the size of workpieces taken into account. (Using four muting sensors)
Blinking: Six times
Muting may have been released with muting input A and B remained ON after a workpiece
passed through the F3SG-SR/PG.
• Check that the workpiece still remains.
• Check that the speed of the workpiece is too slow.
Blinking: Seven times
The next muting sequence may have started after muting was released but before the initial
muting condition was established.
• Check that if a next workpiece has not entered before the current workpiece passes
through the F3SG-SR/PG.
• Check that if the interval between workpieces are too narrow.
SEQ indicator Cause and measures
Blinking: Once
The reset or pre-reset switch may have been pressed before the F3SG-SR/PG receives light.
Check the wiring of the reset and pre-reset signals.
The F3SG-SR/PG may have been blocked or the pre-reset switch may have been pressed
before the pre-reset switch is pressed.
Check the status of the F3SG-SR/PG and the wiring of the pre-reset signal.
Blinking: Twice
After the pre-reset switch was pressed, the pre-reset or reset switch may have been pressed
before the F3SG-SR/PG is blocked.
Check the installation environment of the F3SG-SR/PG.
Blinking: Three times
After the pre-reset switch was pressed and the F3SG-SR/PG was blocked, the pre-reset
switch may have been pressed before the reset switch is pressed.
Check the wiring of the pre-reset signal.
After the pre-reset switch was pressed, a time period from the block of the F3SG-SR/PG to
the press of the reset switch may have exceeded the allowable time.
Check the installation environment of the F3SG-SR/PG as well as pre-reset and reset
switches.
The number of blocks of the F3SG-SR/PG may have exceeded the allowable value after the
pre-reset switch was pressed and before the reset switch is pressed.
Check the installation environment of the F3SG-SR/PG.
SEQ indicator Cause and measures