USER HANDBOOK 1.2 | ECC DIO / ECC AIO
Berghof Automation GmbH | Harretstrasse 1 | 72800 Eningen | www.berghof.com
250000600_ECC-DIO-AIO_Anwenderhandbuch_EN.docx
16
5.1.1. Connecting power supply
WARNING
Uncontrolled and unpredictable operational behaviour!
If the device is operated without both the ground terminals connected,
uncontrolled and unpredictable operational behaviour may occur at both the
inputs and outputs.
Make sure that both the ground terminals – GND and GND IO – are
connected to the common GND of the machine/system.
CAUTION
Live parts!
Before starting any work on the device, switch off all power feeds,
including the feeds to peripherals.
Connect the power supply to plug X1 according to the following table.
Fig. 4: Power supply at plug X1 with Power LEDs
Power supply plug X1
Pin
ECC DIO 16/16
ECC AIO 12/6
Des.
Assignment
Des.
Assignment
1
GND IO
Digital inputs / outputs ground
GND
Device ground
2
+24 V IO
Supply 24 V DC to digital I/O
+24 V
Supply 24 V DC to device
3
GND
Device ground
GND
Device ground
4
+24 V
Supply 24 V DC to device
+24 V
Supply 24 V DC to device
–
L+
Device power supply LED
L+
Device power supply LED
–
L1+
Digital outputs power supply LED
–
–
The following counterparts have been tested with the SC-SMT 3.81 (Weidmüller) plug-in connector and are
approved for use with the device:
Weidmüller BCZ 3.81/04/180 (F, LH)
Weidmüller BCF 3.81/04/180 (F, LH)
ECC DIO 16/16: L+ and GND, and L1+ and GND IO are two separate circuits, which are not
connected internally. Both circuits must be connected or externally bridged.
