
Chapter
4
Operating Instructions
UE 440/470
26
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
8 010 432/P097/14-03-05
Configurable functions
Pay attention to the way in which the emergency stop function works!
The emergency stop integrated in the safety application switches off all outputs belonging
to the safety application.
An emergency stop input device for the safety application implemented with the
UE 440/470 may only be connected to the UE 440/470. Connection to a connected
protective device is not permissible.
Take into account the response time of the emergency stop function. The response time of
the emergency stop function is increased by an input delay configured for the emergency
stop input devices (see Page 42).
Check the connected emergency stop input devices regularly!
Using organisational measures, ensure that the emergency stop input devices are
actuated once after a certain interval.
This is necessary, so that the UE 440/470 can identify error conditions of an emergency
stop input device which have arisen up until then. The interval is to be defined to suit the
specific case dependant on the application.
Always check whether the switching outputs on the UE 440/470 are deactivated on the
operation of the emergency stop input device.
Single channel emergency stop
For a single channel emergency stop input device, you configure…
$
whether testing is to occur constantly (see Page 42).
$
whether an input delay is necessary (see Page 42).
You must use an N/C contact as the single channel emergency stop input device.
Context menu device symbol UE 440/470, command
Edit configuration draft…
in
Edit
configuration draft
window, context menu element symbol
single channel emergency
stop
, command
Element wizard…
.
The electrical connection of a single channel emergency stop is described in Chapter 6
"Electrical installation" on Page 50.
Dual channel emergency stop
For a dual channel emergency stop, you configure...
$
whether you evaluate both channels of the emergency stop complementary or
equivalent (see Page 41).
$
for equivalent evaluation, on which input you use N/C contact or N/O contact.
$
whether testing is to occur constantly (see Page 42)
$
whether an input delay is necessary (see Page 42).
$
whether a discrepancy time is necessary (see Page 43).
With equivalent input evaluation, an emergency stop input device with two N/C contacts
must be used.
Context menu device symbol UE 440/470, command
Edit configuration draft…
in
Edit
configuration draft
window, context menu element symbol
dual channel emergency stop
,
command
Element wizard…
.
The electrical connection of a dual channel emergency stop is described in Chapter 6
"Electrical installation" on Page 51.
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ATTENTION
Note
!
Note
!