Siemens A1 List of Tables

Contents International English

Figure 7-1	Fan Application.......................................................................................	35
Figure 7-2	Extractor System using Closed Loop Flow
	Control....................................................................................................	37
Figure 7-3	Lift Door Operation .................................................................................	39
Figure 7-4	Conveyor Application.............................................................................	41
Figure 7-5	Material Handling Application .................................................................	43
Figure 7-6	Exercise Machine ...................................................................................	45
Figure 8-1	A Typical Closed Loop Controller ...........................................................	48
Figure 8-2	Graph showing the Motor acting as a Generator ....................................	49
Figure 8-3	Absorbing Regenerated Current.............................................................	50
Figure 8-4	Braking Methods.....................................................................................	51
Figure 8-5	Vector Diagram. Load Current against Flux
	Current....................................................................................................	53
Figure 8-6	Comparison. DC Motor/AC Motor..........................................................	54
Figure 8-7	Position Fedback via a Motor Shaft Encoder..........................................	54
Figure B-1	Practical Assemblies. Gearbox..............................................................	61
Figure B-2	Practical Assemblies. Conveyor ............................................................	62
List of Tables
Table 7-1	Fan Application with Manual Control ......................................................	36
Table 7-2	Fan Application with Closed Loop Control..............................................	38
Table 7-3	Key Parameters. Lift Door Operation.....................................................	40
Table 7-4	Key Parameters. Conveyor Application .................................................	42
Table 7-5	Key Parameters. Material Handling Operation ......................................	44
Table 7-6	Key Parameters. An Exercise Machine
	Operation................................................................................................	46
Table A-1	Protection levels (IP Rating) ...................................................................	59

viii MICROMASTER Applications Handbook