System Functions; Initial Run/Reference Run After Restart - Siemens SIDOOR ATD4 W Series System Manual

SIDOOR functions

4.2 System functions

SIDOOR ATD420W / ATD430W
The DCOPS signal can be sent as shown in Figure 5-5 Sensor signals (Page 166), via the process
image (see Table A-17 DCMD expansion bits (Page 320)) and/or via the local sensor input ("Input
1" via p4600 - see Table 5-31 Other parameters (Page 188)).
Note
• The status of the control unit must be considered when using the DCOPS signal (process
image). The process data are only valid in the status "S4: Z_ operation" (see AUTOHOTSPOT).
• The light barrier and DCOPS functions can be implemented simultaneously by connecting to
a fieldbus system (process image).
• The DCOPS, ESPE, light barrier or pressure sensitive edge functions cannot be implemented
simultaneously as sensor functions at Input 1.
You can find more detailed information on DCOPS in section Overview (Page 166).
4.2 System functions
Introduction
The system functions described below enable better monitoring and diagnostics of the system.
4.2.1

Initial run/reference run after restart

Function description
After a restart, the control unit is in initial mode. Initial mode is necessary because there is no
absolute value encoder. The control unit must therefore verify the previously learned end stops
after the restart (= reference run). As long as both end stops OPEN and CLOSE have not been
verified by reaching them, the drive only moves with a slowed driving profile (initial driving
profile). Force limitation is active in accordance with the learned parameters (friction
compensation is active). The tolerance with which the learned end stops are detected in the
initial mode can be adjusted.
• Speed Initial speed of the drive is defined by the parameters p3667 "Slow initial speed open"
or p3671 "Slow initial speed close".
• Force limit during the initial drive and in normal operation, "Static force limit open" is
defined by the parameter p3682 and "Static force limit close" by the parameter p3683.
• Door width tolerance with which the learned end stops are detected in initial mode is
adjustable via the parameter p1208.
SIDOOR ATD420W/ATD430W
After the restart, the control unit is in state "S1: Z_Switch-on inhibit" (see Fig. 4-4 State graph
(Page 163)Sequential control (Page 163)).
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ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA