26
P/N 133487
Banner Engineering Corp.
•
Minneapolis, U .S .A .
www .bannerengineering .com • Tel: 763 .544 .3164
SC22-3 Safety Controller
Instruction Manual
System Installation
+24V dc
MPCE 1
SO 1
MPCE1
Safety Input
Device
EDM
SC22-3
MPCE 2
MPCE2
Single-channel EDM used to
monitor both MPCE feedback
signals. If one or both channels
do not close, the system goes
into a Lockout condition.
Figure 3-7. One-channel EDM hookup
+24V dc
MPCE 1
SO 1
MPCE1
Safety Input
Device
EDM
EDM
SC22-3
MPCE 2
MPCE2
Dual-channel EDM is used to
monitor both MPCE feedback
signals. If the channels are not in
the same state, the system goes
into a Lockout condition.
Figure 3-8. Two-channel EDM hookup
Safety Output
Closed
Open
OFF
ON
EDM
Don’t Care
Don’t Care
Don’t Care
Don’t Care
250 ms
Max.
250 ms
Max.
Figure 3-9. One-channel EDM status, with respect to safety
output
Safety Output
250 ms
Max.
250 ms
Max.
250 ms
Max.
250 ms
Max.
Don’t Care
Closed
Open
Closed
Open
EDM 1
EDM 2
Figure 3-10a. Two-channel EDM, timing between channels
Safety Output
Closed
Open
Closed
Open
OFF
ON
EDM 1
EDM 2
Must Match EDM 1
Must Match EDM 1
Don’t Care
Don’t Care
Must Match EDM 2
Must Match EDM 2
Don’t Care
Don’t Care
Figure 3-10b. Two-channel EDM status, with respect to safety
output