CUI AMT-OTZ-1 User manual

AMT-OTZ-1 User Guide
C
U
I
I
N
C

Table of Contents
Introduction & Features ...........................................................................................
What You’ll Need ......................................................................................................
Components & Assembly ........................................................................................
Zeroing Procedure ....................................................................................................
Using Test Points .......................................................................................................
1
2
3
4
10

| Revision 1.0
Introduction & Features
The AMT-OTZ-1 One Touch Zero module is a simple and intuitive alignment tool for the AMT31 series commutation
encoder. The module allows unprecedented time savings during the encoder alignment process. With the simple press of
a button, the AMT31 series encoder can be instantly aligned to a brushless dc (BLDC) motor, eliminating the traditionally
time consuming alignment process and removing the need for a motor back-driving xture and oscilloscope. Because of
the compact size of the AMT-OTZ-1 module and its common 9V size battery source, it is perfect for use anywhere, from an
engineer’s desk to the manufacturing oor.
Features:
1
Easy “One Touch Zero”
A/B/Z/U/V/W test points
LEDs indicating status of each commutation signal
Universal 9 V battery source
ON/OFF switch for power saving
Small handheld size

| Revision 1.0
C
U
I
I
N
C
What You’ll Need
2
AMT31 Encoder AMT One Touch Zero
1 Universal 9 V Battery
(not included)
AMT Viewpoint™GUI
(optional)
A Windows PC
(Vista or newer OS required)
(optional)
AMT313: AMT-14C-1-012-OTZ
AMT312: AMT-17C-1-012-OTZ

| Revision 1.0
Components & Assembly
3
Attach 9 V battery to the board
Place board on top of base
Fasten the board and base
together with the two screws and
nuts provided
1
2
3
Assembly:
AMT One Touch Zero Board
AMT One Touch Zero Base
2 Screws and Nuts
AMT Cable
AMT-OTZ-1 Includes:

| Revision 1.0
Zeroing Procedure
1 2
Optional: Program AMT31 series commutation encoder
with correct resolution, pole conguration, and direction
settings using AMT Viewpoint™.
Mount the encoder to your motor using all tools provided
with the AMT31-V kit. Watch the assembly video for step-
by-step directions.
4

| Revision 1.0
Zeroing Procedure
3 4
Turn on the AMT-OTZ-1 module. Connect AMT31 encoder.
5
C
U
I
I
N
C

| Revision 1.0
Zeroing Procedure
5 6
The LINK LED will be illuminated if properly connected. Energize or lock the motor windings into place where the
encoder’s U channel should have its rising edge. Once
aligned this will be the zero position. Contact the motor
manufacturer for additional information on commutation
phase and timing diagrams.
6

| Revision 1.0
Zeroing Procedure
7 8
Press the button to align the encoder to the motor. The ALIGNED LED will turn on briey, and then ash three
times to signify that alignment was a success.
7

| Revision 1.0
C
U
I
I
N
C
Zeroing Procedure
910
Green LEDs near the test points will indicate the
commutation signals are now positioned at the rising edge
of the ‘U’ channel.
Disconnect the cable from the encoder and unlock the
motor’s windings.
8

| Revision 1.0
11
Zeroing Procedure
12
Repeat steps 1-9 for all other encoders requiring
alignment.
Be sure to turn the AMT-OTZ-1 module o after usage to
preserve battery life.
9
C
U
I
I
N
C

| Revision 1.0
Using Test Points
1 2
The AMT-OTZ-1 module has test points for quadrature
and commutation signals. These can be used for verifying
encoder alignment or quick access to debugging the
encoder.
An oscilloscope probe or similar device may be used with
the test points.
10

| Revision 1.0
Using Test Points
3 4
Attach probes to the corresponding test points of interest. Use an oscilloscope or logic capture device to observe
encoder signals.
11

Thank you for using the AMT-OTZ-1.
If you have any questions you can contact us at [email protected].
© 2016 CUI Inc. All rights reserved. 03/2016
CUI Inc and AMT Viewpoint are trademarks of CUI Global, Inc. in the U.S. and/or other countries. All other trademarks mentioned are the property of their respective owners.