Chapter
3
Operating instructions
Flexi Classic
32
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
8011509/YPP0/2015-10-26
Subject to change without notice
Product description
3.4.5
Inputs
Connection of the emergency stop pushbutton for the global emergency stop
(I1 and I2)
A two-pole equivalent safety switch must be connected to the inputs I1 and I2 as the
emergency stop pushbutton for the global emergency stop. The emergency stop push-
button is tested via the connection of X1–I1 and X2–I2.
Connection of the sensors for the local emergency stop (I3 and I4)
The sensors for the local emergency stop are connected to the inputs I3 and I4 (see sec-
tion 3.7 “UE410-GU programs” on page 49). The sensors are tested via the connection of
X1–I3 and X2–I4.
Connection of the external device monitoring (EDM) (I5)
The external device monitoring (EDM) is connected to I5.
Before each enable it is checked whether I5 is high. If this condition is not met, the safety
output Q1 is not set to high.
Connection of the reset button (I6)
The reset button must be connected to input I6.
•
The reset button acts both as a reset button for the global emergency stop and for the
local emergency stop, if a program with manual reset is set for the local emergency stop
(program 2, 4, 6 or 8) (see section 3.7 “UE410-GU programs” on page 49).
•
If a program with automatic reset is set for the local emergency stop, then the reset
button only acts on a global emergency stop, i.e. if a global emergency stop has been
triggered on the module and the module has the status Reset required.
3.4.6
Outputs
Lay the single-channel connection in a protected area!
To achieve SIL3 or category 4, you must lay the single-channel connection Q1 to K1/K2
such that cross-circuits to other electrical signals can be excluded, e.g. by laying
in pro-
tected areas
such as in a control cabinet or in separate plastic-sheathed cables.
Safety-relevant devices must be suitable for safety-relevant signal requirements!
Serious injury may occur due to breakdown of safety outputs or loss of required safety
functions.
•
Do not connect loads that exceed the rated value of the safety outputs.
•
Wire the Flexi Classic system so that 24 V DC signals cannot contact the safety outputs.
•
Connect the GND wires of the power supply to earth so that the devices do not switch
on when the safety output line is applied to frame potential.
•
All UE410-GU modules that are on a common global emergency stop cut-off path must
be connected to the same GND connection.
•
Use appropriate components or devices in accordance with regulations and standards.
Notes
WARNING
WARNING
