BERGHOF DC2004 - Page 36

USER HANDBOOK 2.0 | DC20XX, ET20XX, ECC21XX SLIM
Berghof Automation GmbH | Harretstrasse 1 | 72800 Eningen | www.berghof.com
Dialog-Controller-DC20XX_EN.docx
36
Fig. 21: Circuit diagram of the principles of positive switching output
Data from the digital inputs
Feature
Value
Description
Type of inputs
Type 1, 3
To IEC 61131-2
Current-consuming (positive switching)
Cable length
max. 30 m
For unshielded connection cables
Cables over 30 m in length must be shielded
Cable cross-section in
control cabinet
0.14–1.5 mm²
(26-16 AWG)
Aim for plug connector limits to UL specifications.
Field wiring
according to regulations
and standards
Comply with all local regulations and the
stipulations of DIN EN 61131-2.
Rated load voltage
24 V DC (SELV)
–
Delay time
1 ms
Applies for transitions from 0 to 1 and 1 to 0
Signal evaluation
cyclical
Dependent on the cycle time set in the
programming system
Protection against
reverse polarity
yes
–
Potential isolation
no
–
Status display
yes
One orange LED per input
Lights at logical 1