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6
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6
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Figure 6-13 Signal ow of example 3 for MSS 3RK3 Advanced No. 1
The reaction times of subsystem 1 are calculated as follows:
W
6
6
0665.
W
5/B
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Figure 6-14 Reaction times MSS 3RK3 Advanced No. 1 - example 3
Reaction time "sensor - actuator"
(in error-free operation)
Subsystem 1
t
RSA_3-1
= t
S
+ t
CYCL_1
+ t
RL_1
+ (2x t
CYCLasi
)
Fault reaction time "sensor - actuator";
for AS-i output signal identical to t
RSA_1
Subsystem 1
t
FRSA_3-1
= t
RSA_3-1
t
RL
= t
FRL
Formula Description
t
RSA_3-1
Reaction time "sensor - actuator" in error-free operation; only subsystem 1 is considered.
t
FRSA_3-1
Fault reaction time "sensor - actuator"; only subsystem 1 is considered; for AS-i output
signal identical to t
RSA_3-1
t
S
Reaction time of the sensor (EMERGENCY STOP), see the documentation of the sensor.
t
CYCL_1
Set cycle time of MSS 3RK3 Advanced No. 1
When AS-i is used, values between 15 ms and 60 ms can be set.
t
RL
Reaction time of the logic of the MSS 3RK3 in error-free operation
Operation
6.1 Response times
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006 183
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