El1012, El1014, El1018 - Introduction; El1012 - Leds And Connection; Fig. 13 El1012 - Beckhoff EL10 Series Documentation

2.2

EL1012, EL1014, EL1018 - Introduction

Two-, four- and eight-channel digital input terminals 24 V
The EL101x digital input terminals acquire binary control signals from the process level and transmit them, in
an electrically isolated form, to the higher-level automation device. They differ in the number of channels and
the pin assignment. The digital input terminals of the EL101x series feature an input filter (10 µs) and
indicate their signal state through an LED for each channel.
2.2.1

EL1012 - LEDs and connection

Fig. 13: EL1012
EL1012 - LEDs
LED Color
INPUT 1 green
INPUT 2
EL1012 – Connection
Terminal point Description
Name No.
Input 1 1 Input 1
+24 V 2 Sensor supply for input 1 (internally connected to terminal point 6 and positive power contact)
0 V 3 Ground for input 1 (internally connected to terminal point 7 and negative power contact)
PE 4 PE (internally connected to terminal point 8)
Input 2 5 Input 2
+24 V 6 Sensor supply for input 2 (internally connected to terminal point 2 and positive power contact)
0 V 7 Ground for input 2 (internally connected to terminal point 3 and negative power contact)
PE 8 PE (internally connected to terminal point 4)
EL10xx, EL11xx
Meaning
off Signal voltage "0" (-3 V ... 5 V)
on Signal voltage "1" (11 V ... 30 V)
Version: 4.5
, 10 µs input filter
DC
Product overview
19