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3.2
System functions
Introduction
The system functions described below enable better monitoring and diagnostics of the
system.
3.2.1
Restart after power failure
Description of function
After a power failure, the controller has to redetermine the end positions of the door travel.
To do this, the door travels at reduced speed (initial speed) until the controller has detected
the OPEN and CLOSED end positions. The door then resumes traveling at normal speed.
The door travels at normal speed immediately if the DCPS is installed (see section DCOPS
(door closed/opened position sensor) (Page 49)). In this case, the door must be in the
CLOSED position for the restart.
SIDOOR ATD410W/ATD420W/ATD430W
After Power ON, the sequential control system is in the "S1: Switching On Inhibited" mode
(see Figure 4-4 Sequential control state graph (Page 149)).
ATD4xxW Door Controller for Industrial Applications
System Manual, 01/2017, A5E38080677-AB
SIDOOR functions
3.2 System functions
51
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