Ac Power Supply - Siemens SIMATIC IPC847D Operating Instructions Manual

8.4.4

AC power supply

Output voltage
Voltage
+ 12 V
+ 12 V
- 12 V
+ 5 V
+ 3.3 V
+ 5 V Aux
The accumulated power of the +5 V and + 3.3 V supply may not exceed 190 W
1
Maximum inrush current at:
110 VAC = 25 A / 5 ms
230 VAC = 30 A / 5 ms
Power Good Signal
Note
Operation at an uninterruptible power supply (UPS)
The power supply contains an active PFC (Power Factor Correction) circuit to conform to the
EMC guidelines.
Uninterruptible AC power systems (UPS) must supply a sinusoidal output voltage in the
normal and buffered mode when used with SIMATIC PCs with an active PFC.
UPS characteristics are described and classified in the standards EN 50091-3 and IEC
62040-3. Devices with sinusoidal output voltage in the normal and buffered mode are
identified with the classification "VFI-SS-...." or "VI-SS-....".
SIMATIC IPC847D
Operating Instructions, 01/2014, A5E32997454-AA
Max. current
11 A
14 A
0.3 A
25 A
1
20 A
1
2 A
Technical specifications
8.4 Technical data
Voltage stability
+/- 5 %
+/- 5 %
+/- 10 %
+/- 5 %
+/- 5 %
+ 5 % / - 3 %
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