Siemens SIMATIC IPC427C Operations Instructions Page 105

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Technical specifications
14.2 Power requirements of the components
SIMATIC IPC427C
Operating Instructions, 10/2010, A5E02414743-03
105
14.2 Power requirements of the components
Maximum power consumption of the auxiliary components
Auxiliary components Maximum permitted power
consumption
Max. total power
+5 V +3.3 V +12 V -12 V
USB device High current 500 mA -- -- -- 10 W (for all USB devices)
Per slot 1.5 A 1.5 A 0.3 A 0.2 A PC/104
modules
Total 2 A 2 A 0.5 A 0.5 A
9 W (for the whole device)
1) The total load for PCI-104 and USB expansion is max. 15W.
NOTICE
Device can overheat!
For thermal reasons, a 3 watt power loss per PCI/104 slot should not be exceeded.
14.3 Integrated DC power supply
Technical specifications
Input voltage 24 VDC (19.2 to 28.8 VDC)
Power consumption
1
max. 72 W
Power failure buffering Hold-up time > 15 ms
(after > 5 ms DC_FAIL becomes active)
Maximum continuous output power
1
60 W
Degree of protection IP 20
Protection class Safety class I (A protective conductor must be
connected to the device)
1
The performance specifications apply to the power supply component, but not to the IPC427C
device.
Note
Inrush current
A minimum of 4.5 A inrush current for 15 ms is required for starting the IPC427C.
The peak value of the inrush current depends on the input voltage and the impedance of the
24V source; peak values higher than 4.5 A are possible. This will not inhibit the operation of
the IPC427C.
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