Integrated Dc Power Supply - Siemens SIMATIC IPC477E PRO Operating Instructions Manual

9.4.6

Integrated DC power supply

Input voltage
Power consumption
Power failure buffering
Efficiency
Note
Inrush current
At least 5 A inrush current for 15 ms is required for device startup.
The peak value of the starting current depends on the input voltage and the impedance of
the 24 V DC power supply. Peak currents greater than 6.5 A are possible. This will not have
a negative impact on device functionality.
SIMATIC IPC477E PRO
Operating Instructions, 08/2017, A5E39912462-AA
24 V DC (-20%/+20%)
Max. 80 W
Hold-up time ≥20 ms with 20.4 V (DC_FAIL is active after > 5
ms)
>85 %
Technical specifications
9.4 Technical specifications
127