Technical information
8.4 Technical specifications
SIMATIC IPC477D, IPC477D PRO
224 Operating Instructions, 11/2016, A5E31347228-AF
Power requirements of the components
Maximum power consumption of the auxiliary components
Maximum permitted power
consumption
USB device
1
High current 1 A - - Built-in unit: 10 W for all USB
devices
PRO device: 5 W for all USB
devices
PCIe modules
1 2
Per slot - 1.5 A 0.5 A 5 W for the whole device
The total power for PCIe
2
and USB expansions may not exceed 15 W
2
Not for PRO device, for built-in unit only
Note
Built-in unit may overheat!
For thermal reasons, the power loss of the PCIe expansion card may not ex
ceed 5 W with
-in units.
Integrated DC power supply
1
Power failure buffering Hold-up time ≥20 ms with 20.4 V (DC_FAIL is active after >
Efficiency >85 %
Power consumption depends on device configuration. The specified power consumption relates to
the maximum device configuration.
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
V DC power supply. Peak currents greater than 6.5 A are possible. This will not have
a negative impact on device functionality.