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Operating Instructions
Chapter
3
C 4000
Product description
8 009 221/16-11-00
©
SICK AG • Safety Systems • Germany • All rights reserved
13
3.4.1
Restart interlock
Fig. 5: Outline drawing of the
protective operation
The dangerous state of the machine (
) is interrupted if the light curtain (
) is disrupted
and will not be reinstated (
) until the user actuates the restart button.
The restart interlock can be implemented in two different ways:
·
With the internal restart interlock of the C 4000:
The C 4000 controls the restart.
·
With the restart interlock of the machine:
The C 4000 has no control over the restart.
The possible combinations are shown in the following table:
WARNING
Always configure the C 4000 with restart interlock!
The C 4000 is unable to verify if the restart interlock of the machine is connected. If you
deactivate both the C 4000 and the machine-internal restart interlock, the users and oper-
ators of the machine will be at an acute risk of injury.
The electrical connection of the restart button is described in the chapter “Reset button/
restart button” on page 34.
n
Device symbol
C 4000 receiver
, context menu
Configuration draft
,
Edit
, file card
General
,
option
Restart interlock
.
Reset
If you activate both the C 4000 and the machine-internal restart interlock, each restart
interlock will have its own button designated to it.
When actuating the button for the internal restart interlock
·
the C 4000 will reset its switch outputs
·
the light curtain changes to green
Restart interlock of
the C 4000
Restart interlock of
the machine
Permissible application
deactivated
deactivated
Only if the light curtain cannot be stood
behind. Observe EN 60204-1!
deactivated
activated
All
activated
deactivated
Only if the light curtain cannot be stood
behind. Observe EN 60204-1!
activated
activated
All. Restart interlock of the C 4000 handles
the reset function (see below).
Tab. 1: Permissible
configuration of the restart
interlock