Siemens 620 appendix Power Supply with 85W power output AC and DC, Technical Specifications

Hardware Information

7.7Power Supply with 85W power output (AC and 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 %
+ 3.3 V		4.2 A		" 5 %

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 (AC), 7 ms minimum (DC)
T3:	save time		1 ms mimimum

Figure 7-11 Time Characteristics of the Power Good Signal

7-36	SIMATIC Box PC 620 Manual
	A5E00131465-01