User Documentation

5 Assemblyandinstallation | Connecting the IO-Link device
21Manual Communication module UR20-4COM-IO-LINK2547720000/03/09.2019
WARNING
Explosion risk!
During installation work, sparks can form and
surfaces may become excessively hot
▶ Before starting any work, make sure that
there is not a potentially explosive atmos-
phere!
▶ For applications in explosive risk zones,
observe the installation and construction
requirements of EN60079-15 and coun-
try-specific regulations.
WARNING
Dangerous contact voltage!
▶ Carry out assembly and wiring work only
when the power supply disconnected.
▶ Make sure that the place of installation
has been disconnected from the power
supply!
ATTENTION
The product can be destroyed by elec-
trostatic discharge!
u-remote products can be destroyed by elec-
trostatic discharge.
▶ Please make sure that persons and work
equipment are adequately earthed!
▶ In addition, always refer to the complete doc-
umentation in the u-remote IP20 manual.
▶ Carry out all work during the installation/removal and
replacement of components as described in the u-remote
manual.
5.1 Connecting the IO-Link device
ATTENTION
The module can be destroyed!
The voltage between C/Q and L- must not be greater that
the voltage between L+ and L-.
▶ Only connect the devices as shown.
Use unshielded cables of maximum 20 m length
to connect IO-Link devices.
Connecting IO-Link device for class A port
&4
/
/
',









/
/
&4
',
85&20,2/,1. ,2/LQNGHYLFH
Connecting IO-Link device for class A port (DI connection optional)
▶ Connect the IO-Link device as shown in the figure.
The use of the additional digital input at the DI
connection is optional. You can use this digital
input, e.g. if the IO-Link device provides an
additional switching signal.
5 Assembly and installation