8 power supply with 105w power output (ac and dc) – Siemens Simatic 620 User Manual
Page 169
Hardware Information
7-37
SIMATIC Box PC 620 Manual
A5E00131465-01
7.8
Power Supply with 105W power output (AC and DC)
Technical Specifications
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 %
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
20 ms minimum
T3:
save time
1 ms mimimum
voltage
Figure 7-12 Time Characteristics of the Power Good Signal