CENTRALINE I/O MODULES – INSTALLATION & COMMISSIONING INSTRUCTIONS
EN1Z-0973GE51 R0119
34
Technical Data
Table 37. Binary input module data
Input type Dry-contact or open collector
Current rating (closed
input)
2 mA
Open contact voltage 16…22 VDC
Protection
Protected against 24 VAC and
40 VDC overvoltage as well as
against short-circuiting
Status LED Behavior
Using the engineering tool, the status LEDs can be con-
figured individually for use as either alarm LEDs (red/green)
or as status LEDs (yellow/OFF [default]).
Given a state of "logical ON," the LED will be lit (yellow or
red).
Configuration as Fast Totalizer
Using the engineering tool, the binary inputs can be con-
figured as fast totalizers for operation in conjunction with
devices equipped with an open collector output.
Table 38. Binary inputs used as fast totalizers
Frequency max. 20 Hz
Pulse ON min. 25 ms
Pulse OFF min. 25 ms
Bounce max. 5 ms
FAST
TOTALIZER
DRY CONTACT
4 ... 40 VDC = OPEN
0 ... 2 VDC = CLOSED
150 kOHM
10 kOHM
18 VDC (NOT STABILIZED)
+V
BI
GND
Fig. 43. Configuration of a binary input as a fast totalizer
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