Siemens SIDOOR AT40 System Manual page 141

Energy requirements
The entire energy requirements are derived from the following three physical effects:
• Energy requirements of the control unit → W
Quiescent current consumption of the controller over the time to be bridged
• Energy requirements due to holding powers → W
Current consumption due to continuous torques
• Energy requirements due to door movement W
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:
The corresponding mathematical equations of these terms are as follows:
Energy requirements of the control unit
Energy requirements of the holding powers
Energy requirements of the door movement
Energy requirements of the UPS ACCU
Definitions of tags
Tag Unit
F N
FR
F N
HC
F N
HO
I A
O24
m kg
D
N –
C
s m
D
T s
HC
T s
HO
T s
STBY
v m/s
C
v m/s
O
AT40 and ATD400V for elevators
System Manual, 06/2022, A5E42192709-AH
Definition
Friction force door
Holding power door closed
Holding power door open
Current consumption 24 V external
Door weight
Number of OPEN/CLOSED cycles
Distance door leaves
Holding time CLOSED
Holding time OPEN
Standstill time without holding power
Closing speed
Opening speed
7.4 Uninterruptible power supply (UPS)
AT
HOLD
MOVE
Power supply
139