Contents

I

Table of Contents

1. Introduction, Features and Applications.................................................................... 1

Introduction ........................................................................................................... 1

Features ................................................................................................................. 1

Applications........................................................................................................... 1

2. Specifications ............................................................................................................ 2

Electrical Specifications ........................................................................................ 2

Mechanical Specifications..................................................................................... 2

Elimination of Heat ............................................................................................... 2

Operating Environment and other Specifications.................................................. 3

3. Pin Assignment and Description ............................................................................... 3

Connector P1 Configurations ................................................................................ 3

Selecting Active Pulse Edge and Control Signal Mode......................................... 4

Connector P2 Configurations ................................................................................ 4

4. Control Signal Connector (P1) Interface ................................................................... 4

5. Connecting the Motor................................................................................................ 5

Connections to 4-lead Motors................................................................................ 5

Connections to 6-lead Motors................................................................................ 5

Half Coil Configurations ............................................................................... 6

Full Coil Configurations................................................................................ 6

Connections to 8-lead Motors................................................................................ 6

Series Connections ........................................................................................ 6

Parallel Connections...................................................................................... 7

6. Power Supply Selection............................................................................................. 7

Regulated or Unregulated Power Supply .............................................................. 7

Multiple Drivers .................................................................................................... 8

Selecting Supply Voltage....................................................................................... 8

7. Selecting Microstep Resolution and Driver Output Current ..................................... 8

Microstep Resolution Selection............................................................................. 9

Current Settings..................................................................................................... 9

Contents

II

Dynamic current setting .............................................................................. 10

Standstill current setting .............................................................................. 10

8. Wiring Notes............................................................................................................ 10

9. Typical Connection.................................................................................................. 11

10. Sequence Chart of Control Signals........................................................................ 11

11. Protection Functions .............................................................................................. 12

Over-current Protection ............................................................................... 12

Over-voltage Protection............................................................................... 12

Phase Error Protection................................................................................. 12

Protection Indications.................................................................................. 12

12. Frequently Asked Questions.................................................................................. 13

Problem Symptoms and Possible Causes ............................................................ 13