Technical specifications
8.4 Technical specifications
SIMATIC IPC277E
110
Operating Instructions, 11/2019, A5E35783335-AE
DC power supply
Input voltage
24 VDC (19.2 to 28.8 VDC)
Power consumption
1
Max. 32 W
Power failure buffering
Hold-up time > 15 ms
(DC_FAIL becomes active after > 5 ms)
Maximum continuous output power
1
30 W
1
The power specifications apply to the power supply component not to the device.
Note
Differences in power supply performance
A power supply with a maximum continuous output power of 27 W or 30 W can be installed
on the 7" and 9" devices. However, these differences in performance have no influence on
the other properties of the device.
Note
Inrush current
The inrush current of the device at an input voltage of 24 V amounts to at least 2 A for a
period of 25 ms.
The peak value of the inrush current depends on the input voltage and the impedance of the
24 V source; peak currents in excess of 2.0 A are possible. This will not have a negative
impact on device functionality.
