Siemens A1 Table of Contents

International English Contents

	Table of Contents
1	Introduction ...............................................................................................................	1
1.1	What is a Variable Speed Drive? ................................................................................	1
1.2	The Variable Frequency Inverter.................................................................................	3
2	Siemens Drives Product Range...............................................................................	7
3	Selecting a Drive .......................................................................................................	9
3.1	Overall Considerations................................................................................................	9
3.2	Supply Side Requirements..........................................................................................	9
3.3	Motor limitations ..........................................................................................................	12
3.4	Load Considerations ...................................................................................................	13
3.5	Acceleration and Braking requirements ......................................................................	15
3.6	Environmental Considerations ....................................................................................	16
4	Getting Started with an Inverter...............................................................................	17
4.1	Mounting the Inverter ..................................................................................................	17
4.2	Cooling ........................................................................................................................	17
4.3	Wiring up the Inverter..................................................................................................	17
4.4	First Switch On ............................................................................................................	20
5	Applications and Possibilities .................................................................................	21
5.1	Using a Potentiometer with the Analog Input..............................................................	21
5.2	Using all the Digital Inputs...........................................................................................	21
5.3	Selecting and Using the Fixed Frequencies ...............................................................	22
5.4	Using other digital input features.................................................................................	22
5.5	Using the control outputs ............................................................................................	23
5.6	Current Limit and Protection Systems.........................................................................	24
5.7	Other Protection Features...........................................................................................	24
5.8	Some Additional Features...........................................................................................	25

MICROMASTER Applications Handbook v