Formula Description
t
FRL2
Fault reaction time of the logic (two-channel actuator circuit)
t
CYCL
Program cycle time of the MSS 3RK3
t
DELAY
Input delay for monitoring functions and input cells at the inputs
t
TIMER
Timer functions in the logic (timer)
6.1.5 Reaction times "sensor - actuator"
Dependencies
The total reaction times of the MSS 3RK3 depend on the functions that the MSS 3RK3 performs
in each case. In both graphics below, all times that can occur are shown in compact form.
These times are dependent on two factors:
• Type of terminals used to connect the sensor or actuator to the logic of MSS 3RK3, e.g.
terminal on the device or via AS-i bus
• Signal change:
– "OFF signal" means the change from the ON state to the OFF state (1 → 0).
– "ON signal" means the change from the OFF state to the ON state (0 → 1).
Operation
6.1 Response times
SIRIUS 3RK3 Modular Safety System
174 Equipment Manual, 07/2020, NEB926253002000/RS-AC/006
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