Reaction Times; Stopping Distances - Siemens SIDOOR ATD4 W Series System Manual

5.7.3

Reaction times

The reaction time to an interrupted light array (ESPE) or a pressure-sensitive edge can be
determined by measuring the motor current reduction. To this end, the ESPE or pressure-
sensitive edge system can be activated (interrupted or triggered) during constant travel so that
the drive reverses.
The reaction times are independent of the sensor type (ESPE or pressure-sensitive edge). The
minimal response time amounts to 70 ms and the maximum response time amounts to 90 ms.
The delay caused by additional switchgear in the signal chain and by the sensor technology itself
must be added.
5.7.4

Stopping distances

The following table shows the expected stopping distances depending on the different
declaration ramps and different initial speeds, under consideration of a response time of 90 ms
(ESPE and / or pressure-sensitive edge, see section Reaction times (Page 171)).
Table 5-27
ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA
Expected stopping distances [mm] under consideration of the ESPE execution time (90 ms)
Initial speed
[mm/s]
1400
300
350
400
450
500
550
600
650
700
750
5.7 Sensors and external sensor interface module
Set deceleration ramp [mm/s
1200 1000
59 65 72
75 83 93
93 103 116
113 125 142
134 149 170
158 176 201
183 204 234
209 235 270
238 267 308
268 302 349
Controllers
2 ]
800 600 400
83 102 140
108 134 185
136 169 236
167 209 294
201 253 358
239 302 428
279 354 504
323 411 587
369 471 676
419 536 771
171