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Chapter2 Override
F3SG-SR
User’s Manual
System Operation and Functions
2-14-2. Override at Normal Operation
You can enable the Override function under the normal operation.
Override start conditions
If all of the following conditions are satisfied, the OVERRIDE state is enabled. The OVERRIDE state
can be enabled even when there is a muting error.
1. Either muting input A or B is in the ON state. (One or more muting sensors are turned ON by a
workpiece)
This does not apply to Exit-Only Muting mode.
2. The F3SG-SR is blocked and the safety outputs are in the OFF state.
3. An input signal of a special sequence is entered three times to the RESET line when the conditions
No. 1 and 2 above are satisfied. The signal must be entered within a range from 0.1 s to the override
input time limit T1 (1 s). (See the timing chart below.)
The F3SG-SR does not enter the OVERRIDE state when the sensor is in LOCKOUT state.
Override end conditions
When any of the following conditions is satisfied, the OVERRIDE state is released.
1. A period of 600 s (configurable) passes in the OVERRIDE state.
2. All muting sensors are turned OFF.
3. The F3SG-SR is unblocked (during exit-only muting mode).
4. The following signal to cancel the OVERRIDE state is entered:
• When the external device monitoring function is enabled, the RESET line is turned ON. (PNP:
Connected to Vs-3 V~Vs; NPN: Connected to 0 V~3 V)
• When the external device monitoring function is disabled, the RESET line is turned OFF.
The OVERRIDE state can be also released when the F3SG-SR enters the LOCKOUT state.
Timing chart
ON
OFF
ON
OFF
ON
OFF
ON
OFF
T1 T1 T1 T1 T1 T1
Muting input A
Muting input B
RESET
Override state
Beam state
OSSD
T1: Override input time limit
T2: Override time limit
Note. In this timing chart, all muting sensors switched to OFF ends the OVERRIDE state.
Enabled
Disabled
Unblocked
Blocked
1 s max.
1 s max.
T2 max.
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