Overload Protection Of The Geared Motor; Vandalism Protection/Continuous Door Monitoring - Siemens SIDOOR ATD4 W Series System Manual

Using an end position sensor
You can skip initial mode by connecting a DCOPS end position sensor (Door Closed/Opened
Position Sensor). Depending on the application, 1 end position sensor can be used in the open
or closed position or 2 end position sensors can be used in both end positions. The responsibility
for verification of the learned end positions is thus transferred to the user (see section DCOPS
(door closed/opened position sensor) (Page 67)).
4.2.2

Overload protection of the geared motor

Function description
The overload protection should prevent a thermal overload of the motor. While the overload
protection is active, the 7-segment display (H401) shows the fault code "4". The overload
protection is activated by the cases listed below:
• If the geared motor placed under a high load with frequent OPEN DOOR and CLOSE DOOR
commands in quick succession, the hold-open time is automatically lengthened. The next
closing movement is delayed even if a DOOR CLOSE command is present.
An extension of the hold-open time may occur if the dwell time of the door in both end
positions together, per drive cycle, is less than 12 seconds on average.
• If the drive is operated continuously for more than 65 seconds in one direction, fault "4" is
displayed and the motor stops. After acknowledgment of the fault a restart of the control unit
takes place. This can occur only with extremely high system friction, low door speeds and
large door widths.
• If the door is blocked longer than 5 seconds outside the obstruction detection area (p3856,
p3857, p3873, p3874), the motor current is reduced to the nominal motor current. If a
motion of the door in the drive direction is detected, the motor current is increased in
accordance with the parameterized force limit and fault "4" is terminated.
4.2.3

Vandalism protection/continuous door monitoring

Description of function
The vandalism protection/continuous door monitoring function offers protection against
undesired external system motion. If the motor is deenergized, the motor speed is monitored by
the controller.
If the maximum speed of 250 mm/s is exceeded, the controller actively decelerates the motor to
50 mm/s, and then switches the drive back to "deenergize".
As of V1.10: With the M5 and MDG5 motors, the maximum speed at which vandalism protection
is applied is 200 mm/s.
SIDOOR ATD420W / ATD430W
If the maximum configurable speed (p1200) is exceeded, the controller actively decelerates the
motor to 50 mm/s, and then switches the drive back to "deenergize".
ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA
SIDOOR functions
4.2 System functions
69