Siemens 620 appendix Power Supply with 105W power output AC and DC

Hardware Information

7.8Power 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

Power–Good–Signal:

Input voltage

+5 V secondary voltage

POWER GOOD

		T1		T2	T3
T1:	preset time		100 ... 500 ms
T2:	hold–up time		20 ms minimum
T3:	save time		1 ms mimimum

Figure 7-12 Time Characteristics of the Power Good Signal

SIMATIC Box PC 620 Manual	7-37
A5E00131465-01