Technical data

Hardware Information
8-47
SIMATIC Box PC 620 Manual
C79000-G7076-C639-02
8.11 Power Supply (DC)
Technical Specifications
Voltage Max. Current Voltage Stability
+ 12 V 1.7 A  4 %
– 12 V 0.2 A  6 %
+ 5 V 10 A  3 %
– 5 V 0.1 A  5 %
+ 3.3 V 4.2 A  5 %
+ 18 V (potential-free) 0.08 A  5 %
Voltage
Input voltage 24 V DC
Power consumption  120 Watt
Jumpering on power failure 20 ms at nominal voltage
Maximum continual power output 84 W
Degree of protection IP20 (when fitted)
Protection class VDE 0106
Certification EN 60950/IEC 950, UL/cUL1950, UL/cUL508
Power-Good-Signal
T1 T2 T3
Power–Good–Signal:
Input voltage
+5 V secondary
POWER GOOD
T1: preset time 100 ... 500 ms
T2: hold–up time 16,6 ms minimum
T3: save time 1 ms mimimum
voltage
Figure 8-12 Time Characteristics of the Power Good Signal