Power Requirements Of The Components; Integrated Dc Power Supply - Siemens SIMATIC IPC477D Operating Instructions Manual

Technical information
8.4 Technical specifications
8.4.3

Power requirements of the components

Maximum power consumption of the auxiliary components
Auxiliary components
USB device
PCIe modules
1 2
PROFIBUS
The total power for PCIe
1
Not for PRO device, for built-in unit only
2
Note
Built-in unit may overheat!
For thermal reasons, the power loss of the PCIe expansion card may not exceed 5 W with
built-in units.
8.4.4

Integrated DC power supply

Input voltage
Power consumption
Power failure buffering
Efficiency
Power consumption depends on device configuration. The specified power consumption relates to
1
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
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.
224
Maximum permitted power
consumption
+5 V
High current 1 A
1
Per slot
500 mA
and USB expansions may not exceed 15 W
2
1
+3.3 V +12 V
- -
- 1.5 A 0.5 A
- -
24 V DC (-20%/+20%)
Max. 90 W
Hold-up time ≥20 ms with 20.4 V (DC_FAIL is active after >
5 ms)
>85 %
Operating Instructions, 11/2016, A5E31347228-AF
Max. total power
Built-in unit: 10 W for all USB
devices
PRO device: 5 W for all USB
devices
5 W for the whole device
SIMATIC IPC477D, IPC477D PRO