Elmo ISP manual Table of Contents

		4
		TABLE OF CONTENTS
1.	Description		6
2.	Type Designation		7
3.	Technical specifications		7
4.	Operation of the servo control		8
	4.1	Inputs	8
	4.2	Velocity mode	9
		4.2.1 Velocity control using armature voltage feedback	10
	4.3	Current mode	10
	4.4	Current loop	11
	4.5	Current limits	11
		4.5.1 Time dependent peak current limit	11

4.5.2Dynamic contouring of continuous and peak current limits 12

	4.6	Operation of the shunt regulator		13
	4.7	Protective functions		14
		4.7.1	Short circuit protection	14
		4.7.2	Under/over voltage protection	14
		4.7.3	Temperature protection	14
		4.7.4	Insufficient load inductance	14
		4.7.5 Loss of velocity feedback signal		14
		4.7.6 Shunt regulator duty cycle		14
5.	Terminal Description			17
	5.1	Terminals for Horizontal and Rack mounting versions		17
	5.2	Mother Board terminals		20
	5.3	Terminals for ISP mounted in 3U size ENC		22
6.	Installation procedures			26
	6.1	Mounting		26
	6.2	Wiring	................................ .......................	26
	6.3	Load inductance		27
	6.4	AC power supply		27
	6.5	Wiring diagrams		28
7.	Start - Up Procedures			33
	7.1	Common procedures for all amplifiers types		33
		7.1.1 Inhibit and CW/CCW logic		33
		7.1.2	Velocity mode	36
		7.1.3	Current mode	36

ISP - Rev 6/95