Siemens SIDOOR ATD4 W Series System Manual page 267

Note 2: With >45V, irreversible damage is done to the SIDOOR device!
In case of a fault scenario of the power supply unit the output voltage of the power supply unit
has to remain smaller than 60 V.
In case of a fault in the SIDOOR controller voltages of up to 60 V can occur.
Supply current
Normal operation requires an operational peak current of up to 14A for up to 3s as well as a
continuous current of up to 9A. Smaller current values can result in operating faults, depending
on the selected settings (ramps, end speeds, forces) and the door properties (friction, weight).
To ensure triggering of the automatic circuit breaker in case of a fault of the SIDOOR controller,
the utilized power supply unit must have the following properties (see figure below):
• ≥13A continuous current, even in case of a short-circuit
- OR -
• Effective short-circuit current ≤8ARMS, period duration ≤10s, peak current ≤55A
In the case of a fault on the part of the power supply unit or of the SIDOOR controller the current
is limited by the miniature circuit breaker C8 Automat according to EN 60898-1.
U
36 V
0 V
≥ 13 A I
Figure 7-9 Properties of the supplying power supply unit in case of an error of the SIDOOR controller
Fuse protection
A miniature circuit breaker according to EN 60898-1, 8A, C-characteristic of the type SIEMENS:
5SY4108-7 or 5SY4108-7KK11 is to be inserted into the supply network by the customer. It must
be ensured that the miniature circuit breaker is only operated within the permissible range. The
circuit breaker must be mounted close to the SIDOOR controller at a similar ambient
temperature.
Voltage immunity of the power supply unit at an energetic recovery system
The controller does not have an energetic recovery system protection.
This means the voltage at the terminals increases when the doors are braked. In normal
operation, this voltage is limited to values less than 42V by the ballast circuit integrated in the
controller. In faulty operation, however, this voltage can increase to values of less than 60V. This
must be considered when selecting the supply.
ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA
I
or I ≤ 55 A
Limit
0 A
7.5 Building DC voltage supply
I
RMS
t
t
on
T ≤ 10 s
Power supply
I
2
RMS
t ≤ × T
I
on
Limit
265