A 2 Switch-Off Time Of The Msi 100/200 System; Figure A-1 Switch-Off Time For The Safety Function - Leuze electronic MSI 200 Series User Manual

Required switch-off time
Actual switch-off time
Maximum response time
Leuze electronic
A 2 Switch-off time of the MSI 100/200 system
The required switch-off time is dependent on your safety application.
The actual switch-off time for the safety function must always be less than the required switch-
off time.
The actual switch-off time for the safety function (t
mula:
= t + t (+ t ) + t
t
S MSI200 4RO
SF
t t
S MSI200
Figure A-1 Switch-off time for the safety function
Legend:
Reaction time of the sensor/transducer
t
S
Max. reaction time of the MSI 100/200 system
t
MSI200
Max. reaction time of the MSI-EM200-4RO module
t
4RO
Reaction time of the actuator
t
A
Stopping time of the machine
t
STOP
The maximum guaranteed reaction time (t
maximum reaction time t
MSI200
modules. An exception here is the MSI-EM200-4RO relay module.
When using one or more relay modules, the maximum reaction time of the MSI-EM200-4RO
module (t ) must be added once due to the mechanical release time of the relay. The
4RO
maximum reaction time t
4RO
Switch-off time of the MSI 100/200 system
) is determined using the following for-
SF
+ t
A STOP
(+t ) t
4RO A
t
SF
) of the MSI 100/200 system is 30 ms. The
MSI200
applies independent of the number of used safe extension
is 50 ms.
MSI 100/200
t
STOP
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