Waveform Of Safety Outputs - Omron F3SG series User Manual

2-6-1-2. Waveform of safety outputs

When the safety outputs are in the ON state, they are cyclically turned OFF as shown below to test the
output circuit. When this OFF signal is fed back, the output circuit is diagnosed as normal. If the output
signal does not include an OFF pulse signal due to short-circuit, etc, the receiver diagnoses a failure in
the output circuit or wiring, and it enters the Lockout state.
 F3SG-RA Series
*1
ON
OSSD 1
OFF
ON
OSSD 2
OFF
*1. Approx. 15 to 35 ms
*2. Signal when in 2-segment or 3-segment cascade.
*3. Signal when in 3-segment cascade.
*4. An OFF pulse signal of safety output may extend to about 100 μs
due to the effect of the connected load (mostly capacitive load ).
 F3SG-RE Series
ON
OSSD 1
OFF
Approx. 100 ms
ON
OSSD 2
OFF
*An OFF pulse signal of safety output may extend to about 100 μs due
to the effect of the connected load (mostly capacitive load ).
Approx. 90 to 240 ms
*1
*2 *3
Approx.
45 to 120ms
Approx. 40 us *4
Approx. 200 ms
Approx. 40 us *
System Operation and Functions
E
F3SG-R
29
User's Manual