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
15
5.
Connection
WARNING
Uncontrolled and unpredictable operational behaviour!
Failure of certain components in electronic control systems may result in
uncontrolled and unpredictable operational behaviour.
All types of failure and the associated protection systems must be taken
into account at system level.
Comply with all automation system manufacturer instructions.
5.1. Power supply
The device is powered by a 24 V DC external power supply. It is not designed to be connected to a DC mains
supply.
Before plugging in the device, ensure that the external power supply meets the required specifications
(type K to 61131-2).
External power supply (24 V DC)
Supply voltage
+24 V DC SELV (–15% / +20%)
Ripple current
proportion
Max. 5%
The direct voltage level must not fall below 20.4 V.
Power consumption
Total max. 0.25 A at +24 V DC (typ. 0.05 A electronic)
Energy buffering
10 ms
Internal power supply
The power supply unit that supplies the system electronics is specified for an input voltage of 24 V DC (–15%
/ +20%) and is incorporated within the device. The power supply has integrated protection against reverse
polarity and surge current protection (0.5 A).
Installation
All connections and cables must be laid so as to prevent inductive and capacitive interference causing
any damage to the device.
Ensure that the infeed lines provide adequate current and voltage carrying capacity.