Operating instructions

Chapter 7 Operating Instructions
C4000 Standard/Advanced
64 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8009861/WA65/2012-06-12
Subject to change without notice
Commissioning
 Switch the power supply off and then back on again and check via the 7Csegment
d
isplay whether the alignment is correct after tightening the clamping bolts (Tab. 21).
T
he display values have the following meaning:
Display Meaning
 The receiver cannot synchronise with the sender; the alignment is very
poor.
 Some light beams do not hit the receiver.
 All the light beams hit the receiver, but the alignment is still slightly off.
No display
or 
The alignment is now true; the devices must be locked in this position.
Display  appears if the device is operated with reduced resolution
and/or with blanking.
 If the optimum alignment (= no display) persists for longer than 2 minutes, the system
automatically deactivates the alignment mode.
 If you wish to readjust the alignment later, switch the power supply of the C4000 off and
back on again.
 The host in a cascaded system remains on red until all guests have been correctly
aligned.
7.3 Test notes
The purpose of the tests described in the following is to confirm the safety requirements
specified in the national/international rules and regulations, especially the safety
requirements in the Machine and Work Equipment Directive (EU Conformity).
These tests are also used to identify if the protection is affected by external light sources
or other unusual ambient effects.
These tests must therefore always be performed.
7.3.1 Tests before the first commissioning
 Check the effectiveness of the protective device mounted to the machine, using all
selectable operating modes as specified in the checklist in the annex (see 13.2 on
page 116).
 Ensure that the operating personnel of the machine protected by the safety light curtain
are correctly instructed by qualified safety personnel before being allowed to operate
the machine. Instructing the operating personnel is the responsibility of the machine
owner.
 Annex 13.2 of this document shows a checklist for review by the manufacturer and
OEM. Use this checklist as a reference before commissioning the system for the first
time.
7.3.2 Regular inspection of the protective device by qualified safety personnel
 Check the system, following the inspection intervals specified in the national rules and
regulations. This procedure ensures that any changes on the machine or manipulations
of the protective device are detected before use/re-use.
 If any modifications have been made to the machine or the protective device, or if the
safety light curtain has been changed or repaired, the system must be checked again as
specified in the checklist in the annex.
Tab.
21
:
Display values
during the alignment of
sender and receiver
Notes