Release 04/02

Hardware Information

7.7Power supply (AC and DC)

Technical Data

 

Voltage

 

Max. current

Voltage stability

 

 

 

 

 

+12 V

 

2.5 A

 

" 4%

 

 

 

 

 

–12 V

 

0.3 A

 

" 5%

 

 

 

 

 

+ 5 V

 

13.5 A

 

" 3%

 

 

 

 

 

+3.3 V

 

8.5 A

 

" 3%

 

 

 

 

 

Voltage

Input voltage

120/230V AC

+15%/–20%

 

24V DC

+20%/–15%

 

 

 

Power consumption

v 132 Watt

 

 

 

Stored energy time upon power failure

20 ms at rated voltage

 

 

 

Maximum continual power output

105 W

 

 

 

Degree of protection

IP20 (when installed)

 

 

 

Protection class

VDE 0106

 

 

 

Approvals

EN 60950/IEC 950, UL/cUL1950, UL/cUL508

 

 

 

Power-Good-Signal

Power Good signal

Input voltage

+5 V secondary voltage

POWER GOOD

 

 

T1

 

 

T2

 

T3

T1:

preset time

100 to 500 ms

 

 

T2:

hold-up time

16.6 ms minimum

 

 

T3:

save time

1 ms minimum

 

 

Figure 7-11 Time Characteristics of the Power Good Signal

Panel PC 670 Computing Unit, Equipment Manual

7-37

Page 169
Image 169
Siemens PC 670 manual Power supply AC and DC, Technical Data, Voltage, Power-Good-Signal