Lenze i950 Series, Руководство пользователя

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19.24 Response times
The overall system must be taken into account when determining the response time following
a safety function request.
Parameter set acceptance from the SD card
Safe parameter set acceptance is supported by means of a safe parameter set saved in the
device.
The following are all crucial in determining the response time:
•
Response time of the connected safety sensor technology
•
Input delay of safety inputs
•
Internal processing time
•
When using a safety bus:
-
Monitoring time for cyclic services
-
Monitoring time in the safety PLC
-
Processing time in the safety PLC
•
Delay times due to additional modules
t
1
t
2
t
ps
t
4
t
3
t
5
t
i
μC
μC
S
SF
t = 0
Fig. 84: Response times to the request of a safety function
1
Standard device
2 Integrated safety
3 Safety PLC
4 Safety bus
μC Microcontroller
S Safety sensors
SF Safety function triggered
Response times of inputs
Response time when reacting to an event in the safety sensor technology [ms]
t
1
Response time of the safety sensor technology According to manufacturer information
t
2
Input delay of safe inputs
0x211A:002 0...100
Input filter 2
t
i
Processing time in the integrated safety sensor
technology 4
Safety function begins after Ʃ
Tab. 3: Response time when reacting to an event in the safety sensor technology
Response time of safe output
Response time of safe output to a safety function [ms]
Safe output SD-Out 1 switches after 4
Tab. 4: Response time of safe output
Safety functions
Response times
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