schmersal PSC1 - Response Times in Standard Operation

Installation manual
HB-37420-810-01-25F-EN PSC1-C-100 Installation manual - V2.2.docx Page 146 of 201
Version: 25F
6.1 Response times in standard operation
The basis for the calculation of response times is the cycle time of the PSC1. system. This can
be selected in 3 stages and is in operation T_cycle = 16 / 24 / 32 ms. The response times
stated correspond to the related maximum propagation time within the PSC1-C-100 module for
the specific application. Depending on the application, further application-dependent response
times for the sensors and actuators used must be included in the calculation to obtain the total
propagation time.
Function Response time [ms] Explanation
Cycle time 16 24 32
Activation of a monitoring function
by means of ENABLE with
subsequent shutdown via digital
output
16
*)
24
*)
32
*)
Activation of a monitoring function by means of
the ENABLE signal.
Activation of a monitoring function
by means of ENABLE with
subsequent shutdown via safety
relay
39
*)
47
*)
55
*)
Activation of a monitoring function by means of the
ENABLE signal.
Response of an already activated
monitoring function including
PLC processing for position and
speed processing via digital output
36
*)
56
*)
70
*)
If a monitoring function is already activated via
ENABLE, the module requires one
cycle to calculate
the actual speed value. In the next cycle, after the
calculation of the monitoring function, the
information is further processed and output by the
PLC, i.e. based on the logic implemented this
results, e.g., in the switching of an output.
Response of an already activated
monitoring function including
PLC processing for position and
speed processing via safety relay
59
*)
79
*)
93
*)
If a monitoring function is already activated via
ENABLE, the module requires one
cycle to calculate
the actual speed value. In the next cycle, after the
calculation of the monitoring function, the
information is further processed and output by the
PLC, i.e. based on the logic implemented this
results, e.g., in the switching of an output.
Activation of digital output via
digital input
32 48 64
Activation of an input and switching the output
Activation of output relay via digital
input
42 58 74
Activation of an input and switching the output
Deactivation of digital output via
digital input
32 48 64
Deactivation of an input and therefore deactivation
of the output
Deactivation of output relay via
digital input
55 71 87
Deactivation of an input and therefore deactivation
of the output
Mean value filter (for setting see
encoder dialogue box SafePLC2)
0 - 64 0 - 64 0 - 64
Group propagation time for the averager. This
propagation time only acts on monitoring functions
related to position / speed / acceleration, however
not on the logic processing.
Activation of digital output via
2 manual elements
32 ms
Activation of the 2 manual elements and therefore
deactivation of the output
Deactivation of digital output via 2
manual elements
32 ms
Deactivation of the 2 manual elements and therefore
deactivation of the output
Note:
*)
When using a mean value filter, its response time must be added