Operating Instructions Chapter 4
C 4000 Standard/Advanced
8 009 861/OE59/19-11-04 © SICK AG • Industrial Safety Systems • Germany • All rights reserved
21
Configurable functions
4.3 Emergency stop
The C 4000 has an input for a two-channel emergency stop button.The emergency stop
monitoring in the device corresponds to stop category 0 in accordance with EN 418. You
can connect e.g. a door contact or an emergency stop button to the emergency stop input.
The operation of the emergency stop button has the following effect:
$ The safety light curtain deactivates the OSSDs.
$ The host switches to red.
$ The 7-segment display on the host indicates Z.
The emergency stop function deactivates the OSSDs even if the bypass function is
activated.
Take into account the response time of the emergency stop function! The response time of
the safety light curtain on interruption via the emergency stop input is up to 200 ms.
Pay attention to the way in which the emergency stop function works!
The emergency stop button connected to the extension connection on the C 4000 affects
only the switching outputs (OSSDs) on the C 4000.
$ The C 4000 checks after switch on whether an emergency stop has been configured and
whether a door switch or similar switch is connected. If the configuration and the elec-
trical connection do not match, the system locks completely (lock-out). The 7-segment
display will then show the error message ;O'.
$ The safety light curtain has a output signal (ADO) at which the status of the emergency
stop input can be signalled. For details refer to the next section.
Regularly check the connected emergency stop button or door contact!
By means of organisational measures ensure that the emergency stop button or door
contact is operated once at a specified interval.
This is necessary so that the C 4000 can detect any fault that has occurred on the
emergency stop button or door switch. The interval is to be defined to suit the specific
case dependant on the application.
Always check whether the switching outputs on the light curtain are deactivated on the
operation of the emergency stop button or door switch.
The electrical connection of the emergency stop is described in chapter 6.7 “Emergency
stop” on page 53.
Device symbol C 4000 Host (receiver), context menu Configuration draft, Edit, file card
General, option Emergency stop active.
Notes
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WARNING
Notes
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WARNING
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