Operating Instructions (compact)
1.6 Connecting
SIMATIC Panel PC 577
1-14
Operating Instructions, Release 04/2006, A5E00795255
Note
Power factor correction
The power supply contains an active PFC (Power Factor Correction) circuit to conform to the
EMC directive.
Uninterruptible AC power supplies (UPS) must supply a sinusoidal output voltage in the
normal and buffered mode when used with SIMATIC PCs with 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-....”.
Country-specific connection information
For the USA and Canada
A UL-listed power supply cable must be used in the United States and Canada.
Power cables are provided as an accessory for the specific country of delivery.
•
110 V supply voltage
Use a flexible power cable with UL approval and the following features: Type SJT with
three leads, min. 18 AWG conductor cross-section, max. 4.5 m long and parallel
grounding plug 15 A, min. 125 V.
•
230 V supply voltage
Use a flexible power cable with UL approval and the following features: Type SJT with
three leads, min. 18 AWG conductor cross-section, max. 4.5 m long and tandem
grounding plug 15 A, min. 250 V.
For countries other than the USA and Canada
•
230 V supply voltage
This device is equipped with a safety-tested power cable which may only be connected to
a grounding outlet. If you choose not to use this cable, you must use a flexible cable of
the following type: Min. 18 AWG conductor cross-section and 15 A / 250 V grounding
plug. The cable set must be compliant with the safety regulations and stipulated IDs of
the country where the system is to be installed.