Proper use The safety light curtain C 4000 must be used only as defined in the chapter 2.2 “Range of uses of the device”. It must be used only by qualified personnel and only on the machine where it has been installed and initialized by qualified personnel.
• The operating instructions must be made available to the user of the machine where the safety light curtain C 4000 is fitted. The machine operator is to be instructed in the use of the device by specialist personnel and must be instructed to read the operating in- structions.
No commissioning without a thorough check-up by qualified personnel! Before you operate a system protected by the safety light curtain C 4000 for the first time, make sure that the system is first checked and approved by qualified personnel. Please WARNING note the notices in the chapter “On safety”...
Notes automatically deactivates the alignment mode. • If you wish to readjust the alignment later, switch the power supply of the C 4000 off and back on again. • The host in a cascaded system remains on red until all guests have been accurately aligned.
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(see 4.2 “Steps for mounting the device” on page 25). Note In both tests, the receiver of the C 4000 must show the red LED only. Fig. 28: Daily checks of the pro- tective device "...
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The external voltage supply must be capable of buffering brief mains failures of 20 ms as specified in EN 60204. Suitable power supplies are available as accessories from SICK (Siemens type series 6 EP 1). Within the limits of U Applies to the voltage range between U and 0 V.
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