AMT2030250-3000-C [CUI]
MODULAR ENCODER; 模块化编码器
| 型号： | AMT2030250-3000-C |
| 厂家： | 
CUI INC |
| 描述： | MODULAR ENCODER |
| 文件： | 总7页 (文件大小：524K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
date 02/12/2013
page 1 of 7
SERIES: AMT203 │ DESCRIPTION: MODULAR ENCODER
FEATURES
• 12 bit (4,096 positions)
• SPI communication
• small size 37mm
• incremental line count up to 1,024
• single pulse index
• capacitive ASIC technology
• modular locking hub design for ease of installation
• SPI adjustable settings
• ’One Touch’ zero position
ELECTRICAL
parameter
conditions/description
min
typ
5
max
units
V
power supply
4.5
5.5
10
current consumption
quadrature resolution
incremental output signals
incremental output waveform
output current
with unloaded outputs
8
mA
PPR
96, 192, 200, 250, 400, 500, 512, 1024
quadrature A, B signals and index Z
TTL voltage square wave
sink/source
2
mA
SPI output
natural binary
SPI bus
PIC 16F690 (see datasheet)
SPI resolution
12
bit
position accuracy
0.2
deg
1. All resolutions stated are before quadrature decoding. (example: 1000 ppr x 4 = 4000 counts)
MECHANICAL
parameter
conditions/description
min
typ
max
units
max. rotational speed
mounting options
8,000
RPM
A) 2 each M1.6 on 16 mm (0.63”) bolt circle
B) 2 each #4 on 19.05 mm (0.75”) bolt circle
C) 2 each M1.6 or M2 on 20 mm (0.787”) bolt circle
D) 3 each M1.6 or M2 on 20.9 mm (0.823”) bolt
circle with washers in option B holes
E) 3 each M1.6 or M2 on 22 mm (0.866”) bolt circle
F) 4 each M1.6 or M2 on 25.4 mm (1”) bolt circle
ENVIRONMENTAL
parameter
conditions/description
min
typ
max
125
85
units
°C
%
operating temperature
humidity
-40
non-condensing
vibration
10 ~ 500 Hz, 5 min sweep, 2 hour each XYZ
3 pulses, 6 ms, 3 each XYZ
5
G
shock
200
G
cui.com
CUI Inc │ SERIES: AMT203 │ DESCRIPTION: MODULAR ENCODER
date 02/12/2013 │ page 2 of 7
PART NUMBER KEY
The AMT203 is designed for 12 bit binary (4,096) operation. For customers who may use the optional quadrature output, one of the resolutions below may be
selected as the default quadrature output.
AMT203XXXX - XXXX - X
Base Number
Resolution(ppr):
0096
0192
0200
0250
0400
0500
0512
1024
Sleeve Bore Diameter:
2000 = 2 mm
3000 = 3 mm
3175 = 3.175 mm (1/8”)
4000 = 4 mm
4760 = 4.76 mm (3/16”)
5000 = 5 mm
6000 = 6 mm
6350 = 6.35 mm (1/4”)
8000 = 8 mm
Options:
“blank” = standard connector
C = locking connector
D = conformal coating with
standard connector
E = conformal coating with
locking connector
AMT203-V KIT
In order to provide maximum flexibility for our customers, the AMT203 series is provided in kit form standard. This allows the user to implement the encoder
into a range of applications using one sku#, reducing engineering and inventory costs.
SLEEVES
1/4 inch
3/16 inch
(4.76mm)
Yellow1
1/8 inch
8mm
6mm
5mm
4mm
3mm
2mm
(6.35mm)
(3.175mm)
Blue
Snow
Red1
Green1
Gray60
Purple1
Orange
Light Sky Blue
TOOL A
SHAFT
ADAPTER
TOOL C
BASE
TOP COVER
cui.com
CUI Inc │ SERIES: AMT203 │ DESCRIPTION: MODULAR ENCODER
date 02/12/2013 │ page 3 of 7
ENCODER INTERFACE
Standard Connector Option
Locking Connector Option
PINOUT CONNECTOR 1
FUNCTION
#
14
13
12
11
10
9
SPI
T_Bit
N/A
X
N/A
A
N/A
B
8
B
B
7
MOSI
5 V+
SCK
GND
MISO
CSB
N/A
6
5
4
3
2
13 11
9
7
8
5
6
3
4
1
13 11
9
7
8
5
6
3
4
1
1
14 12 10
2
14 12 10
2
Mating Connector:
Samtec ISDF-07-D
Mating Connector:
Samtec ISDF-07-D-L
DETAIL B
DETAIL B
SCALE 4 : 1
SCALE 4 : 1
Demo Board Side
Encoder Side
1' 0.25"
(304.8)
28 AWG
10 conductor
1.27 mm pitch
Demo Board Cable
Samtec
ISDF-07-D
(Cable available without Demo Board Connector)
cui.com
CUI Inc │ SERIES: AMT203 │ DESCRIPTION: MODULAR ENCODER
date 02/12/2013 │ page 4 of 7
MECHANICAL DRAWING
10.34 0.407
R15.49 0.610
15.30 0.602
15.33 0.604
37.39 1.472
28.58 1.125
10.93 0.430
A (3 PLCS)
22.00 0.866
2.00 0.079
(4 PLCS)
21.45 0.844
12.60 0.496
OꢂLERAUCE:
19.05 0.750
20.90 0.823
2.95 0.116
(2 PLCS)
R2.10 0.083
0.05ꢀꢀ ꢁULESS ꢂOTERꢃISE
SPECIFIED
1.70 0.067
(2 PLCS)
0.55
DEOAIL A
SCALE 4 : 1
RoHS
25.48 1.003
16.00 0.630
18.60ꢀꢀ
AMO203 ABS ꢃꢃYY
ꢁS Patent Uo. 6892590
R1.20ꢀꢀ
SCALE 5:1
cui.com
CUI Inc │ SERIES: AMT203 │ DESCRIPTION: MODULAR ENCODER
date 02/12/2013 │ page 5 of 7
APPLICATION NOTES
Encoder operational mode
• Initialization mode: At power up the encoder goes through an initiation and stabilization procedure.
This includes microprocessor stabilization and the program for combining Coarse
and Fine channel of the encoder for getting the absolute start position. This
less than 0.1 seconds.
takes
• Tracking mode: Only the Fine channel is active and the MCU internal position register is updated with
data from Fine:
– MCU 12 bit position register is updated from Fine every 48 μs.
– For accurate position update without above time delay, outputs for incremental A quad B
or Count and Up/Dwn from the Fine channel are provided. These outputs are operational up to
8000 RPM and there is no speed error. There is an acceleration error dependent on an internal
filter constant of about 100 μs.
– When using the incremental output there also is an Index output available, with one index
pulse per turn.
Serial Peripheral Interface Commands
The SPI or Serial Peripheral Interface Bus is a standard interface promoted by Motorola and Microchip among
others. It consists of 4 signals:
MOSI: Master Out Slave In
MISO: Master In Slave Out
SCK: Serial Clock
CSB: Chip Select (active low)
SPI BUS
The SPI bus runs full duplex and transfers multiples of 8 bits in a frame. The SPI type is the most common
(CPOL=0, CPHA=0), also known as Microwire. Data is captured on the rising edge of SCK and the output data
is changed after the falling edge of SCK.
MISO
SCK
LSB
MSB
Terminology
MSB = most significant byte
LSB = least significant byte
msb = most significant bit
lsb = least significant bit
MOSI
CSB
LSB
MSB
Setup
Serial Peripheral Interface Bus (SPI) on AMT203
Figure 7: SPI BUS Timing Diagram
The msb data out on MISO is valid soon after CSB goes low. The MOSI data is valid soon after the falling edge
of SCK. The Encoder drives data out on MISO as long as CSB is low.
Normally, CSB goes low, then after 8 clocks the command is interpreted. CSB high resets the
clock counter, and terminates any command sequence.
cui.com
CUI Inc │ SERIES: AMT203 │ DESCRIPTION: MODULAR ENCODER
date 02/12/2013 │ page 6 of 7
SPI Commands:
The commands are all 8 bits long, the msb is shifted in first, and is the leftmost bit shown in Figure 7.
Encoder Protocol Considerations:
The Encoder is designed to operate with a high speed SPI link, in full duplex mode. This implies the host can
issue commands and read data as quickly as necessary but there has to be an acknowledgement from the
slave just before the data is transferred.
Essentially the host issues a command, receives zero or more wait sequences (0xA5 or 1010,0101) then the
echo of the command followed by an optional payload.
So, for example to read the position, the host issues rd_pos (0x10 or 0001,0000), receiving a series of wait
sequences (0xA5) then a reflected rd_pos (0x10), then the MSB data followed by the LSB data.
It is recommended that the host leave a 20 us gap between reads to avoid extending the read time by forcing
wait sequences.
Command 0x00: nop_a5
This command is ignored by the Encoder and simply causes the next data to be read. The encoder responds
with 0xA5 if there is nothing else to send.
Command 0x10: rd_pos
This command causes a read of the current position.
The sequence is as follows:
1) issue read command, receive idle character
2) issue NOP, receive idle character 0xA5 or 0x10
3) repeat step 2 if it is 0xA5
4) issue NOP and receive MSB position (4 bits valid data)
5) issue NOP and receive LSB position (8 bits valid data)
Note that it is possible to overlap commands, so instead of NOP is several steps above
the user could start another operation. The read and write FIFOs for the PCI streams are
16 bytes long and it is up to the user to avoid overflow.
Command 0x70: set_zero_point
This command sets the current position to zero and saves this setting in the EEPROM. The host
should send nop_a5 repeatedly after sending this command, the response will be 0xa5 while update
is proceeding and 0x80 is the response when update is finished.
cui.com
CUI Inc │ SERIES: AMT203 │ DESCRIPTION: MODULAR ENCODER
date 02/12/2013 │ page 7 of 7
REVISION HISTORY
rev.
description
date
1.0
initial release
updated pin-out
05/01/2010
10/01/2010
01/01/2011
09/16/2011
1.01
1.02
1.03
updated application note
updated SPI commands
addition of shock and incremental output current data, correction of
vibration data, updated part number key
1.04
09/30/2011
1.05
1.06
1.07
updated Part Number Key
updated tools
03/09/2012
07/13/2012
02/12/2013
added locking connector drawing
The revision history provided is for informational purposes only and is believed to be accurate.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
techsupport@cui.com
CUI offers a one (1) year limited warranty. Complete warranty information is listed on our website.
CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is
assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical
component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to
affect its safety or effectiveness.
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