42 Rockwell Automation Publication 440R-UM013G-EN-P - December 2022
Chapter 7 EMD Safety Relay Timing Functions
10. The B1 signal turns off before on-timer elapses. The safety outputs turn off immediately
and the off-timer starts.
11. The off-timer elapses. The logic link signal turns off to end Case 2.
Case 3
12. The logic link signal at terminal L12 is on. The B1 signal turns on. The jog on-timer starts,
and the safety outputs turn on.
13. The on-timer elapses and the safety outputs turn off. The off-timer starts.
14. During the off-timer cycle, the B1 signal is turned off and then quickly back on. The
safety outputs remain off.
15. The B1 signal must turn off before a new jog cycle can begin.
The L12 and B1 signals are interchangeable. If the B1 signal remains on and the L12
turns off before the on-timer elapses, the safety outputs turn off immediately.
The L12 and B1 signals are interchangeable. At least one of these two signals must
remain off throughout the off-timer cycle before a new jog cycle begins.
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