Siemens SIDOOR ATD4 W Series System Manual page 59

You can find more information on individual drive orders in the sections linked in the "Combining
door commands and door command expansion bits" table above.
Stop with disable DCU
The door command is a separate command without DCMD extension or no combination with
DCMD extension bits. It has the value 8 in the "DCMD signals" table. Causes a stop and the door
commands via the other source, such as service buttons, are disabled.
Shutdown/deceleration functions
In an unlimited system, the shutdown and deceleration functions are split into the following:
"rapid stop", "ramp stop" and "coasting down". These definitions do not apply in a door system
because these are to be considered as limited systems.
Table 4-4 Shutdown/deceleration functions in an unlimited system
Function Description
Rapid stop Decelerates the drive to standstill with the maximum deceleration ramp (taking into account technical
and safety-related limit areas).
Ramp stop Same meaning as rapid stop, but a configured ramp is used to decelerate the drive to standstill.
Coasting down The drive is not actively braked, it can run freely and is only slowed by the friction inherent in the system
(e.g. gearing).
In SIDOOR systems, coasting down is equivalent to the Deenergize (no current) door command.
For safety reasons, however, direct coasting down must not take place due to the limits
implemented in a door system (safety reasons). This is why the following definitions apply to the
SIDOOR door drive:
Table 4-5 SIDOOR door drive shutdown/deceleration functions (limited system)
Function Description
Not a door com‐ Decelerates the drive with a configured ramp (p3674 "DecRampOp" or p3677 "DecRampCIs") down to a
mand/Deenergize standstill and subsequently goes into free running mode.
Special stop
Stop Decelerates the drive with a configured ramp (p3674 "DecRampOp" or p3677 "DecRampCIs") down to a
standstill and subsequently goes into virtual short-circuit mode (50% PWM → EMF brake active).
Reverse Direction of travel reversal by local sensor (e.g. light curtain and pressure-sensitive edge) or "Open →
Close" or "Close → Open" drive order change.
Decelerates the drive to standstill with a configured ramp (p3675 "RevRampOpToCls" or p3678 "Re‐
vRampClsToOp"). The further behavior depends on the current system state and the parameterized
reversing behavior.
ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA
SIDOOR functions
4.1 Basic functions
57