Zapi EPS-AC0, User Manual, Page: 3 / 95

AEMZP0BA - EPS-AC0 - User Manual Page - 3/95
Contents
1 INTRODUCTION ...................................................................................................................6
2 SPECIFICATION................................................................................................................... 7
2.1 Technical specifications ............................................................................................. 7
2.2 Block diagram............................................................................................................. 7
2.3 Electrical specifications .............................................................................................. 7
2.4 Mechanical specifications........................................................................................... 8
2.4.1 Basic release ................................................................................................ 8
3 FUNCTIONS OF THE EPS-AC0 ........................................................................................... 9
3.1 Manual Mode Steering ............................................................................................... 9
3.2 Automatic Centering ................................................................................................. 10
3.3 Operational features ................................................................................................. 11
3.4 Diagnosis.................................................................................................................. 11
4 SYSTEM COMPONENTS ................................................................................................... 12
4.1 Steering Motor .......................................................................................................... 12
4.2 Gear Box and total reduction ratio............................................................................ 12
4.3 Eps-ac0 controller .................................................................................................... 12
4.3.1 Eps-ac0 PCB .............................................................................................. 13
4.4 Sensor in the steering handle................................................................................... 14
4.4.1 Stepper motor............................................................................................. 14
4.4.2 Twin pot ...................................................................................................... 14
4.5 Feedback sensors .................................................................................................... 15
4.5.1 Encoder in the motor shaft and a Feedback Potentiometer ....................... 15
4.5.2 Encoder in the motor shaft and one (two) toggle switch(es) ...................... 17
4.5.3 Feedback Encoder ..................................................................................... 18
5 AUTC MODE....................................................................................................................... 21
6 CONNECTING DIAGRAMS ................................................................................................ 22
6.1 Power Connecting Diagram ..................................................................................... 22
6.2 EPS-AC0 Stepper Motor diagram ............................................................................ 23
6.3 EPS-AC0 Twin pot diagram...................................................................................... 24
7 CONNECTIONS: SUGGESTIONS AND CAUTIONS ......................................................... 25
7.1 Stepper Motor connections ...................................................................................... 25
7.2 Twin pot connections................................................................................................ 25
7.3 Encoder connections ................................................................................................ 25
7.4 Feedback pot connections ....................................................................................... 25
7.5 Digital Inputs connections ........................................................................................ 26
7.6 Safety contacts ......................................................................................................... 27
7.7 Motor thermal sensor connections ........................................................................... 27
8 INSTALLATION: SUGGESTIONS AND CAUTIONS ......................................................... 28
8.1 Thermal consideration .............................................................................................. 28
8.1.1 Controller with Base Plate .......................................................................... 28
8.1.2 Controller with finned Heatsink................................................................... 28
8.2 General suggestion .................................................................................................. 29
8.3 Connection cables .................................................................................................... 29
8.4 Fuses........................................................................................................................ 30
8.5 Contactors ................................................................................................................ 30
8.6 Installation of a CAN Communication System.......................................................... 31
8.7 Wiring: I/O connections ............................................................................................ 33