CTB Servo Drives

1. Introduction

1.1MachMotion Spindleoffers Drivetwo Optionsseries the GH single axis and MAS multi axis drives.  The GH can be used as a single axis servo drive and can be connected to a range of PM motors or can be used to drive a AC induction spindle motor.  The MAS come in to versions 3 and 4 axis.

The drives all use EtherCAT for communication from the drive and controller.

Configuring a CTB Spindle:

The CTB drives can be configured to use the encoder on that is built into the motor or a external load encoder for position feedback. The encoder on the motor should always be connected to the drive with connector T5. Every spindle drive is expected to have the correct braking resistor installed.

1.2

External Load Encoder

The external encoder must be a 5V TTL quadrature encoder with A,B and marker pulse to be used for orientation of the spindle.  It is very important that the external encoder is mounted 1:1 ratio to the spindle load.

1. Encoder wiringwiring:
   

   Function	Cannon Plug	DB15 Pin Number
   0V	K	4
   5V	H	3
   A	A	2
   /A	N	1
   B	C	7
   /B	R	6
   Z	B	12
   /Z	P	11
   Shield		Shell

2. Encoder parameters:
   

   Parameter	Name	Descriptions	Factory Setting
   C1-03	Position Feedback Source	0: Motor Encoder (T5) 1: External Encoder (T4)	0
   C1-04	Position Operation Source	0: Invalid 1: Motor Encoder (T5) 2: External Encoder (T4)	1
   E1-15	External Encoder Type (T4)	0: Invalid 1: Quadrature	1
   E1-16	External Encoder Pules Count (T4)	0～16348	1024
   E1-17	External Encoder Direction (T4)	0: Clockwise 1: Counterclockwise	0

 

 

This manual gives the process for basic operation of a using the MachMotion control. The screen is shown below, followed by a brief summary of the different features of the screen. The number shown in the screenshot refers to a brief description below the image. 

Control Screen Overview: