Siemens SIMATIC 627B, Operating Instructions Manual

Page: 138 / 244

Specifications
14.3 AC voltage supply
SIMATIC Box PC 627B
136
Operating Instructions, 06/2008, A5E00927393-02
14.3 AC voltage supply
Specifications
Degree of protection IP20 (in installed state)
Protection class VDE 0106
Note
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-....".
Output voltages
Voltage Max. current
+ 12 V 6,5 A peak 8 A
- 12 V 0.3 A
+ 5 V 16.5 A
1)
Peak 18.5 A
+ 3.3 V 8.5 A
2)
1)
The max. permitted accumulated power of the +5 V and + 3.3 V is 90 W.
Power Good signal of the AC power supply
,QSXWYROWDJH
9VHFRQGDU\YROWDJH
32:(5*22'
7
SUHVHWWLPH
PV
KROGXSWLPH PVPLQLPXP
7
7 7