Operating instructions Chapter 3
Flexi Classic
8011509/YPP0/2015-10-26 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 57
Subject to change without notice
Product description
3.8.7 Inputs and outputs
Assignment Description
I1-I4 Inputs for the connection of signal detectors or sensors (input A)
X1-X4
Test outputs: cross-circuit detecting control signals for controlling
sensors of the module (input A)
I5-I8 Inputs for the connection of signal detectors or sensors (input B)
X5-X8
Test outputs: cross-circuit detecting control signals for controlling
sensors of the module (input B)
For more informationen on this topic see section 4.12 “Grouping of subsystems” on
page 78.
3.9 UE410-2RO/UE410-4RO output modules
The UE410-2RO/UE410-4RO output modules make dual-channel contact-based outputs
with positively guided relay contacts available.
The output modules may only be operated in a system combination with a UE410-MU/XU.
A maximum of four UE410-4RO or eight UE410-2RO can be connected to a Flexi Classic
system.
The slot of an output module in the Flexi Classic system is on the end of the safety
assembly.
3.9.1 Output module UE410-2RO
The UE410-2RO has one control input (B1). This input controls two internal relays and
forms a redundant shutdown path comprising:
• two “safe enable current paths” (13/14, 23/24), dual-channel and floating,
• one “safe enable current path” (Y14), dual-channel and not floating,
• one “external device monitoring feedback circuit” (Y1/Y2), dual-channel and floating.
UE410-8DI
UE410-2RO
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