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6-10
Chapter
6
SAFETY
I/O INTERF
ACE
1.5
Dedicated input signal connections
c
CAUTION
See "7. I/O connections" in Chapter 3 for a defi nition of NPN and PNP
specifi cations.
■
NPN specifications
+
1 DI.COM
3 SERVICE
2 INTERLOCK
Photocoupler
External 24V
power supply
■
PNP specifications
+
1 DI.COM
3 SERVICE
2 INTERLOCK
Photocoupler
External 24V
power supply
n
NOTE
The NPN or PNP specifi cations can be selected by connecting DI.COM to
the positive or negative terminal of the external DC 24V power supply.
1. SAFETY I/O interface overview
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