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Product description
3.1
Product identification
The part number of the safety system is located on the packaging.
Further topics
•
"Ordering information", page 45
3.2
Application description
The Safe Entry Exit safety system is used on machines in which it is not possible to
enter the hazardous area as long as the machine is in a dangerous state. Appropriate
protective devices (e.g., fixed guards) prevent access to the hazardous area. The haz‐
ardous area can only be accessed via an opening that enables the material to pass
through via the conveyor.
Safe Entry Exit is used to monitor the opening provided for material transport and to
place the machine in the safe state if anything other than the expected material passes
through the opening. To accomplish this, the safety system monitors the time it takes
for the expected material to pass through the Type 4 electro-sensitive protective device,
but not the height of the material,
see "Construction and function", page 14
3.3
Components of the safety system
Safe Entry Exit components (hardware and software)
•
Flexi Soft safety controller main module
•
Flexi Soft safety controller expansion module – I/O module (8 inputs, 4 outputs)
•
Optional, if the conveyor is going to switch between different speeds: Flexi Soft
safety controller, expansion module – I/O module (8 inputs)
•
Memory Plug (MLP)
•
Type 4 electro-sensitive protective device
•
Higher-level control
•
Hold to run device
•
Pushbutton for reset function
•
Configuration file for the Flexi Soft safety controller
Implementing all the safety functions for the application requires a complete system
consisting of sensors, a controller, actuators, and control switches. This safety system
comprises sensors and a controller only and is therefore only a subsystem. The user is
responsible for the safe design of the complete system and all safety functions.
3.4
Components required
The following components are essential for using the Safe Entry Exit safety system in an
application:
•
Type 4 electro-sensitive protective device
•
Flexi Soft safety controller main module
•
Flexi Soft safety controller expansion module
•
Higher-level control
•
Hold to run device
•
Pushbutton for reset function
PRODUCT DESCRIPTION
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8021675/ZV26/2019-05-13 | SICK
O P E R A T I N G I N S T R U C T I O N S | Safe Entry Exit
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Subject to change without notice