CONTENTS i

Table of Contents
Introduction..............................................................................................................1
Product Description.........................................................................................1
Specification....................................................................................................1
Power Connections.........................................................................................2
Motor Connections..........................................................................................2
General Wiring & Earthing Recommendations............................................... 2
Transformer Primary Connections.................................................................. 5
Control Signals................................................................................................8
Setting Up the Drive........................................................................................10
Motherboard Link .................................................................................10
Current Programming...........................................................................11
Stepping Mode Selection .....................................................................11
Standby Current................................................................................... 12
Boost Current....................................................................................... 12
Anti-resonance Dropout Speed............................................................12
Current Profile Setting (Half-step Mode).............................................. 13
Fuses.............................................................................................................. 14
Test Points...................................................................................................... 14
MS20 Microstep Card ..............................................................................................15
Description...................................................................................................... 15
Setting Up the Microstep Card........................................................................16
Operation of the Drive Protection Systems...........................................................17
Overload Protection ........................................................................................17
Supply Failure Protection................................................................................17
Overtemperature Protection............................................................................17
Fault-finding Guide..................................................................................................19
Returning the System......................................................................................20