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ISP - Rev 6/95
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
4.5.2 Dynamic 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