
Operating Instructions
Chapter
4
UE 440/470
8 010 432/P097/14-03-05
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
29
Configurable functions
Safety notes
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Ensure that the person who actuates the reset button can fully see the hazardous area.
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Attach the Reset button so that it cannot be actuated by a person located in the
hazardous area.
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The safety application must be configured with restart interlock if the protective field can
be exited via the hazardous area and if it is not possible to see a person at any point in
the hazardous area! Check whether exiting of the protective field via the hazardous area
can be prevented via a physical structure, if necessary.
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Note the warnings and function descriptions for restart of protective devices connected
to the safety controller!
Context menu device symbol UE 440/470, command
Edit configuration draft…
in Edit
configuration
window, context menu element symbol
release module
, command
Element
wizard…
,
Restart interlock
tab.
Reset
If you want to activate the restart interlock on the UE 440/470 (internal) and also a restart
interlock on the machine (external), then each restart interlock gets a reset button.
After actuating the reset button for the internal restart interlock (providing the initial
conditions are in effect)…
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the UE 440/470 switches the OSSD(s) on.
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the neighbouring LED of the respective OSSD illuminates green.
The external restart interlock prevents the machine from restarting. The operator must
also actuate the restart button of the machine control after resetting the UE 440/470.
Ensure that the proper sequence is followed!
The machine control must be implemented in such a way that the machine only starts up
again when the UE 440/470 is reset and the restart button of the machine control is then
pressed.
Reset button
You can configure up to two connections for reset buttons.
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You must use a single channel N/O contact as the reset button.
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The operator must
press
and
release
the reset button to trigger the function (LOW-HIGH-
LOW sequence).
The electrical connection of a reset button is described in Chapter 6 "Electrical installation"
on Page 51.
"Reset required" signal lamp
You can configure up to two connections for "Reset required" signal lamps. The connected
signal lamps flash at 1 Hz if all initial conditions for switching on again are in effect after
the assigned OSSDs of the UE 440/470 were switched off.
The electrical connection of a "Reset required" signal lamp is described in Chapter 6
"Electrical installation" on Page 56.
%
ATTENTION
!
-
red
,
,
green
,
-
yellow
%
ATTENTION
Notes