Banner SC22-3E Safety Controller with Ethernet - Manual (Page 32)

Cancel OFF-Delay Devices. This feature provides the option to cancel a configured OFF-delay time. It functions in one of two ways:
• Keeps the Safety Output ON, or
• Turns the Safety Output OFF immediately, after the Controller receives a Cancel OFF-Delay signal.
A new Status Output (O.K. to Cancel Output's OFF-Delay Status) will indicate when a Cancel Delay Input can be activated, in order to
keep the OFF-delayed Safety Output ON.
Safety Input(s)
(Manual or Auto)
Cancel Delay Input
(Monitored Option Shown)
Safety Output
(Cancel Off Delay)
Status Output
(OK to Cancel OFF-Delay)
Off Delay
Started
Off Delay
Ended
Run
Stop
Run
Reset
Active
Inactive
ON
OFF
Off Delay
Normal End
Cancel Delay
Performed
Off Delay
0.5 sec.
2
2 1
1
Note 1 - If “turn output off” function is selected
Note 2 - If “keep output on” function is selected
Figure 11. Cancel Delay Timing: Safety Input remains in Stop mode
Safety Input(s)
(Manual or Auto)
Cancel Delay Input
(Monitored Option Shown)
Safety Output
(Cancel Off Delay)
Status Output
(OK to Cancel OFF-Delay)
Off Delay
Started
Off Delay
Ended
Run
Stop
Run
Reset
Active
Inactive
ON
OFF
Off Delay
Normal End
On (Auto)
Off (Manual)
Cancel Delay
Performed
Off Delay
0.5 sec.
Figure 12. Cancel OFF-Delay Timing: "Turn Output OFF" function
SC22-3/-3E Safety Controller Instruction Manual
32 www.bannerengineering.com - tel: 763-544-3164 P/N 133487 rev. C