Cross-circuit monitoring
T
he 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
T
he 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
•
"D
ata sheet", page 89
•
"Deflector mirrors", page 104
•
"Weld spark guard", page 99
•
"Technical data", page 89
•
"Dimensional drawings", page 94
3.2 Product characteristics
3.2.1 Device overview
Figure 3: Device with system plug and system connection
!
System plug
"
System connection
§
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