SICK Safe Entry Exit, Operating Instructions Manual

Page: 15 / 52

2
Logic (safety relay or safety controller)
3
Sub-safety function
4
Wiring between sensors and logic
5
Wiring between safety system components and components outside the safety system
6
Limit of the safety system
7
Components outside the safety system, e.g., actuators, safety capable input devices, or
higher-level controller
3.7 Functions
The Safe Entry Exit safety system offers the following functions:
• Muting function
°
The safety controller monitors the signal change from requesting the muting
function and from the output signal switching devices of the Type 4 electro-
sensitive protective device and if necessary, switches to the safe state,
see
"Muting function", page 40 .
• Time Extension Function
°
After a correct initiation sequence of the muting function, the maximum dura‐
tion of the muting function can be extended,
see "Time Extension Function",
page 41 .
• Hold to run device
°
When the safety system has switched to the safe state, the hold to run device
is used to place the conveyor in motion while the material is blocking the pro‐
tective field of the Type 4 electro-sensitive protective device.
see "Hold to run
device", page 42 .
• 1 of n timing sets
°
This function makes it possible to select different transport speeds and mate‐
rial lengths,
see "1 of n timing sets", page 43 .
PRODUCT DESCRIPTION
3
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 15
Subject to change without notice