COMMUTATION ENCODER. AMT31 Datasheet

AMT31 ENCODER. Datasheet pdf. Equivalent

AMT31 Datasheet
Recommendation AMT31 Datasheet
Part AMT31
Description MODULAR COMMUTATION ENCODER
Feature AMT31; For more information, please visit the product page. SERIES: AMT31 │ DESCRIPTION: MODULAR COMMUTATIO.
Manufacture CUI
Datasheet
Download AMT31 Datasheet




CUI AMT31
For more information, please visit the product page.
SERIES: AMT31 DESCRIPTION: MODULAR COMMUTATION ENCODER
FEATURES
• patented capacitive ASIC technology
• low power consumption
• U, V, W commutation phase channels
• 2, 4, 6, 8, 10, 12, 20 motor poles w/ incremental resolutions up to 4096 PPR
• resolutions and poles programmable with AMT Viewpoint™ PC software
• differential line driver versions
• digitally set zero position with AMT One Touch Zero™ module or serial commands
• compact modular package with locking hub for ease of installation
• radial and axial cable connections
• -40~125°C operating temperature
date 10/10/2018
page 1 of 11
ELECTRICAL
parameter
power supply
start up time
current consumption
single ended channels
differential RS-422 channels
conditions/description
VDD
with unloaded output
output high level
output low level
output current (per channel)
rise/fall time
output high level
output low level
output current (per channel)
rise/fall time
min
4.5
VDD-0.1
3
7
typ
5
200
16
8
11
max
5.5
0.1
15
0.1
20
20
units
V
ms
mA
V
V
mA
ns
V
V
mA
ns
INCREMENTAL CHARACTERISTICS
parameter
waveform
phase difference
quadrature resolutions1
index2
accuracy
quadrature duty cycle
conditions/description
min
typ
max
units
CMOS voltage square wave
A leads B for CCW rotation (viewed from front)
90 degrees
48, 96, 100, 125, 192, 200, 250, 256, 360, 384, 400, 500,
512, 768, 800, 1000, 1024, 1600, 2000, 2048, 2500, 4096
PPR
one pulse per 360 degree rotation
0.2 degrees
50 %
COMMUTATION CHARACTERISTICS
parameter
conditions/description
min
typ
max
units
channels
CMOS Voltage (S)
Quadrature Line Driver (Q)
Commutation Line Driver (C)
Line Driver (D)
A, B, Z, U, V, W
A, A¯, B, B¯, Z, Z¯, U, V, W
A, B, Z, U, U¯, V, V¯, W, W¯
A, A¯, B, B¯, Z, Z¯, U, U¯, V, ¯V, W, W¯
motor poles3
2, 4, 6, 8, 10, 12, 20
waveform2
phase difference
CMOS voltage square wave
WYE motor winding configurations
120
electrical
degrees
Notes:
1. Resolutions programmed with AMT Viewpoint™ PC software. Default resolution set to 2048 PPR. Listed as pre-quadrature, meaning final number of counts is PPR x 4.
2. Zero position alignment set with AMT One Touch Zero™ module, AMT Viewpoint™ PC software, or serial commands
3. Pole counts and waveform direction set via AMT Viewpoint™ PC software. Default poles set to 4 poles and counter-clockwise direction.
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CUI AMT31
For more information, please visit the product page.
CUI Inc SERIES: AMT31 DESCRIPTION: MODULAR COMMUTATION ENCODER
date 10/10/2018 page 2 of 11
MECHANICAL
parameter
motor shaft length
weight
axial play
rotational speed (at each
resolution)
ENVIRONMENTAL
parameter
operating temperature
humidity
vibration
shock
RoHS
SERIAL INTERFACE
parameter
protocol
controller
data rate
conditions/description
weight varies by configuration
48, 96, 100, 125, 192, 200, 250, 256, 384, 400,
500, 512, 800, 1000, 1024, 2048
360, 768, 1600, 2000, 4096
2500
min
9
conditions/description
non-condensing
10~500 Hz, 5 minute sweep, 2 hours on each XYZ
3 pulses, 6 ms, 3 on each XYZ
2011/65/EU
min
-40
conditions/description
min
serial UART
driven by onboard Microchip PIC18F25K80. See
Microchip documentation for additional details.
8 data bits, no parity, 1 stop bit, least significant bit first
typ
15.7
typ
max
±0.3
8000
4000
2500
max
125
85
5
200
typ max
115200
units
mm
g
mm
RPM
RPM
RPM
units
°C
%
G
G
units
baud
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CUI AMT31
For more information, please visit the product page.
CUI Inc SERIES: AMT31 DESCRIPTION: MODULAR COMMUTATION ENCODER
date 10/10/2018 page 3 of 11
WAVEFORMS
Figure 1
Quadrature signals with index showing
counter-clockwise rotation
I
Z
A
T
B P SSSS
The following parameters are defined by the resolution selected for each
encoder. The encoders resolution is listed as Pulses Per Revolution (PPR), which
is the number of periods (or high pulses) over the encoders revolution.
Parameter Description
Expression
Units
Notes
PPR resolution
Pulses Per Revolution
This is the user selected value and the
format all resolutions are listed in
CPR
counts
PPR x 4
Counts Per Revolution
This is the number of quadrature counts
the encoder has
T
period
360/R
mechanical degrees
P pulse width T/2 mechanical degrees
S A/B state width T/4
mechanical degrees
This is the width of a quadrature state
I
index width
T/4
mechanical degrees
The width of a once per turn index is the
state width for A & B lines
Note:
For more information regarding PPR, CPR, or LPR (Lines Per Revolution) view https://www.cui.com/blog/what-is-encoder-ppr-cpr-and-lpr
Figure 2
Commutation signals with index (The programmable
direction setting dictates in which direction of
rotation U will lead V, and V will lead W)
I
Z
U SSSSSS
V
C
P
W
T
The following parameters are defined by the resolution and pole count
selected for each encoder, where PPR = resolution and M = motor poles.
Parameter Description
T period
P pulse width
I index width
S
U/V/W state
width
C
phase
spacing
Expression
360/M
T/2
360/(PPR*4)
60
T/6
120
T/3
Units
mechanical degrees
mechanical degrees
mechanical degrees
electrical degrees
mechanical degrees
electrical degrees
mechanical degrees
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