33
WWW.LCMETER.COM
LCI40
Series IOM
4. eleCtriCal ConneCtionS
4.10.4 Modular inputs/outputs and bus Systems
4.10 description of the inputs and outputs
Caution
Observe connection polarity.
Control input Passive, Modular i/os
•
3V
≤
U
ext
≤
32 VDC
•
I
max
= 9.5mA at U
ext
≤
24 V I
max
= 9.5mA at U
ext
≤
32
V
•
Switching point for identifying “contact open or
closed”:
Contact open (off): U0
≤
2.5 V with I
nom
= 1.9mA
Contact closed (on): U0
≥
3V with I
nom
= 1.9mA
•
X designates the connection terminals A or B,
depending on the version of the signal converter.
Control input Passive C
p
1. Signal
Control input active, Modular i/os
•
U
int
= 24 VDC
•
External c
ontact open:
U
0, nom
=22V
•
External contact closed:
I
nom
= 4 mA
•
Switching point for identifying “contact open or
closed”:
Contact closed (on): U0
≤
10 V with I
nom
= 1.9 mA
Contact open (off): U0
≥
12 V with I
nom
= 1.9 mA
•
X designates the connection terminals A or B,
depending on the version of the signal converter.
Control Input Active C
a
1. Signal
