Siemens SIDOOR ATD4 W Series - Uninterruptible Power Supply (UPS)

7.6 Uninterruptible power supply (UPS)
Overview
The SIDOOR drive system can be supplied with an uninterruptible power supply (UPS) for a
certain period of time The criteria on the design of the UPS described below must be taken into
account here.
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Figure 7-10 SIDOOR system block diagram
In the observation, three main criteria need to be considered:
1. The peak power of the UPS (for approx. 3 seconds) should be ≥ 600 W.
2. With the use of the transformer, the UPS must be designed as an online double converter.
Classi󹪝cation: VFI (according to IEC 62040-3)
3. The energy storage of the UPS must be adapted to the entire drive system and the time to be
bridged.
Energy requirements
The entire energy requirements are derived from the following three physical e󹪜ects:
• Energy requirements of the control unit → W
AT
Quiescent current consumption of the control unit over the time to be bridged
• Energy requirements due to holding powers → W
HOLD
Current consumption due to continuous torques
• Energy requirements due to door movement W
MOVE
Current consumption during traversing due to system friction and acceleration of the door
leaves
The energy to be stored by the UPS is therefore derived as follows:
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Power supply
7.6 Uninterruptible power supply (UPS)
ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA 267