Cross-circuit monitoring
The following prerequisites apply for cross-circuit monitoring:
•
Cross-circuit monitoring is only done for devices which have a supplementary
change number “(Rev. no.)” on the type label in the Ident No. field.
•
When combining several devices, all devices must have a supplementary change
number “(Rev. no.)” on the type label in the Ident No. field, otherwise cross-circuit
monitoring is not provided.
Prerequisites for the protective function of the safety light curtain miniTwin4
The miniTwin4 safety light curtain can only fulfill its protective function when the follow‐
ing requirements are satisfied:
•
It must be possible to electrically influence the control of the machine.
•
It must be possible to change the dangerous state of the machine into a safe
state.
•
The miniTwin4 safety light curtain must be arranged so that objects are reliably
detected upon entry into the hazardous area.
•
The reset button must be mounted outside of the hazardous area so that it cannot
be actuated by a person who is inside the hazardous area. In addition, the opera‐
tor must have a complete overview of the hazardous area when actuating the reset
button.
•
When setting up and using the devices, the applicable statutory and regulatory
requirements must be observed.
Further topics
•
•
•
•
•
"Dimensional drawings", page 94
3.2
Product characteristics
3.2.1
Device overview
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Figure 3: Device with system plug and system connection
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System plug
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System connection
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Device connection
PRODUCT DESCRIPTION
3
8012624/10OM/2018-08-09 | SICK
O P E R A T I N G I N S T R U C T I O N S | miniTwin4
13
Subject to change without notice
