Elmo SSA Series - Default Chapter; Table of Contents

4
SSA - Rev 6/98
TABLE OF CONTENTS
1. DESCRIPTION..........................................................................................................................7
2. TYPE DESIGNATION...............................................................................................................8
3. TECHNICAL SPECIFICATIONS...............................................................................................8
4. OPERATION OF THE SERVO CONTROL.............................................................................10
4.1 Inputs ..............................................................................................................................................................................10
4.2 Velocity mode..................................................................................................................................................................11
4.2.1 Velocity control using armature voltage feedback.......................................................................................................12
4.3 Current mode..................................................................................................................................................................12
4.4 Current loop....................................................................................................................................................................12
4.5 Current limits .................................................................................................................................................................12
4.5.1 Time dependent peak current limit.............................................................................................................................13
4.6 Protective functions.........................................................................................................................................................14
4.6.1 Short circuit protection ..............................................................................................................................................14
4.6.2 Under/Over voltage protection ...................................................................................................................................14
4.6.3 Temperature protection..............................................................................................................................................14
5. TERMINAL DESCRIPTION ....................................................................................................17
5.1 Terminals of the basic SSA.............................................................................................................................................17
5.2 Terminals for SIB-SSA...................................................................................................................................................19
6. INSTALLATION PROCEDURES............................................................................................ 20
6.1 Mounting.........................................................................................................................................................................20
6.2 Wiring.............................................................................................................................................................................20