Omron G9SP Series

55
Safety Device Function Blocks Section 3-5
Resetting Errors
Note If the AOPD input turns OFF (i.e., safety light curtain obstructed)
while there is a synchronization or sequence error, Output Enable
will turn OFF and Fault Present will turn ON.
■ Timing Chart
Synchronization Error (Muting Mode: Parallel Muting with 2 Sensors)
Example Muting System Configurations
■ Parallel Muting with 2 Sensors
In this example, two Retro-reflective Photoelectric Sensors are set up as the
muting sensors with intersecting detection zones.
Use this configuration when the workpiece length (L) is not fixed or not long
enough.
Error Operation when error occurs Resetting
Output Enable Fault Present Error output
Discrepancy error
during AOPD input
OFF (safe state) ON Discrepancy
Error (AOPD):
ON
• Change the safety light curtain input pair
(AOPD inputs 1 and 2) from inactive to
active.
• Change to IDLE Mode and then return it to
RUN Mode.
Discrepancy error
during override
input
Discrepancy
Error (Over-
ride): ON
• Change the override input pair (override
inputs 1 and 2) from inactive to active.
• Change to IDLE Mode and then return it to
RUN Mode.
Synchronization
error
Same as AOPD
input (See
note.)
Same as AOPD
input (See
note.)
Synchronization
Error: ON
• The error will be reset the next time a nor-
mal muting status is enabled.
• Change to IDLE Mode and then return it to
RUN Mode.
Sequence error Sequence Error:
ON
Muting Signal 11
Output Enable
Fault Present
AOPD Input 2 (NC)
Muting Status
AOPD Input 1 (NC)
Muting Signal 12
Synchroni-
zation Error
Synchronization Time