Siemens PC 670 用户手册
Hardware Information
Release 04/02
7-37
Panel PC 670 Computing Unit, Equipment Manual
7.7
Power 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
T1
T2
T3
Power Good signal
Input voltage
+5 V secondary voltage
POWER GOOD
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