Siemens PANEL PC 877 ユーザーズマニュアル

ページ / 288
 
Connecting 
 
6.2 Connecting the 100 V to 240 V AC power supply 
SIMATIC Panel PC 877 
Operating instructions, Release 07/2006, A5E00877780-01 
6-5
 
Power Factor Correction 
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-....”. 
 
 
Notice 
Risk of damage 
Operation of the device on a non-sinusoidal mains voltage can cause damage to the power 
supply unit. 
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. 
• 
120 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 15 A 
ground contact connector, minimum rating 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 15 A 
ground contact connector, minimum rating 250 V. 
For countries other than the USA and Canada 
• 
Please note local supply voltages 
This device is equipped with a safety-tested power cord which may only be connected to 
a ground contact power 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 
shockproof connector. The cable set must be compliant with the safety regulations and 
stipulated IDs of the country where the system is to be installed. 
Connecting the power supply 
 
Steps for connecting the device to the 100 / 240 V AC power supply 
1  Switch off the AC power source 
2  Connect the power supply using the connector 
Power consumption 
The maximum AC power consumption is 360 W.