Chapter
6
Operating Instructions
UE 440/470
50
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
8 010 432/P097/14-03-05
Electrical installation
You can use complementary (
) or equivalent input devices and sensors for the input
devices and sensors. You can use N/C contacts (
) or N/O contacts (
) if you use
equivalent input devices or sensors. If you have configured input devices or sensors
without testing, connect them to 24 V. If you have configured input devices or sensors with
testing, connect them to the test outputs of the safety controller.
You can use N/C contacts or N/O contacts with equivalent input devices. With
complementary evaluation, you decide the connection to which the N/C contact or
N/O contact is attached during configuration.
6.2.3
Two-hand control
24 V
I 1.0
I 1.1
I 1.2
I 1.3
You can connect two two-hand control input devices to the UE 440/470.
6.2.4
Single channel emergency stop
You can connect one emergency stop for each safety application. You must use
N/C contacts for a single channel emergency stop.
Fig. 15: Example for the
connection of dual channel
input devices or sensors
Fig. 16: Example for the
connection of a two-hand
control input device
Fig. 17: Example for
connection of a single
channel emergency stop
Connection to
24 V DC
Connection to
test outputs