Technical specifications
8.5 Technical specifications
SIMATIC IPC427E
110 Operating Instructions, 09/2017, A5E37454814-AB
Power demand of the components
Maximum permitted power consumption of the auxiliary components
Maximum permitted power con-
sumption
10 W (for all USB devices)
PCIe mod-
ules
Per slot - 1.5 A 0.5 A 8 W for one slot
12 W for both slots
The total power for PCIe cards and USB devices may not exceed 15 W
To avoid overheating, the power loss per PCIe slot should not exceed 8 watts.
Integrated DC power supply
Output power of the power supply
Power failure buffering Hold-up time ≥20 ms with 20.4 V (DC_FAIL is active after > 5
Note
Inrush current
The device needs an inrush current of at least 6.5
A for 15 ms.
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
impact on device functionality.