Coding Against Interference; Edm - Pilz PSEN sc M 3.0 08-12 Operating Manual

Function description
Automatic reset
With the automatic reset function the safety laser scanner is set to normal operation when
the safety laser scanner was in an error state, and the error was rectified.
When the function of the automatic reset is activated, there is an attempt to restore normal
operation automatically 10 seconds after an error state is determined.
The automatic reset function is permanently deactivated when the PSEN sc M 3.0/5.5
08-12 series switches to an error state more than 5 times within 15 minutes with an INTFx
error.
The PSEN sc M 3.0/5.5 08-12 series must be switched off and then on again.
4.9

Coding against interference

Safety laser scanners that can influence each other can be operated in the same room
when beam coding of the safety laser scanner is set up.
A code is specified for each laser scanner and assigned to this safety laser scanner.
Four codes can be selected that are assigned to a safety laser scanner each during config-
uration (Configure detection capability).
The selected code extends the response time per measurement cycle of the safety laser
scanner.
For the four codes there are the following response time extensions per measurement
cycle.
Code
0
1
2
3
4.10

EDM

Contactors outside the safety laser scanner can be monitored (External Device Monitoring
= EDM, also known as feedback loop monitoring).
EDM only needs to be activated if the contactors are controlled directly.
A test is performed to see that the N/C contacts switch if the state of the OSSDs changes
and so is used to monitor and detect malfunctions on the contactors. If a malfunction is de-
tected, the safety laser scanner switches to a safe condition and stops the connected ma-
chine. This check is carried out each time the OSSDs are triggered and before restarting.
The EDM function is available:
} Only when using the 12-pin connection
}
Only for the OSSD pairs 1 and 2.
Operating Manual PSEN sc M 3.0/5.5 08-12
1005055-EN-03
Response time per measurement cycle
30 ms
30.5 ms
31 ms
31.5 ms
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