SAME SKY | SERIES: AMT13 | DESCRIPTION: MODULAR INCREMENTAL ENCODER

date 09/12/2024 | page 2 of 9

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WAVEFORMS

MECHANICAL

parameter

conditions/description

min

typ

max

units

motor shaft length

13.5

mm

motor shaft tolerance

NOM +0/-0.015

mm

weight

weight varies by configuration

26

g

axial play

±0.3

mm

hub set screw to shaft torque

set screw size: M2.5x0.45

3

in-lb

rotational speed (at each

resolution)

48, 96, 100, 125, 192, 200, 250, 256, 384, 400, 500, 512,

800, 1000, 1024, 2048

8000

RPM

360, 768, 1600, 2000, 4096

4000

RPM

2500

2500

RPM

ENVIRONMENTAL

parameter

conditions/description

min

typ

max

units

operating temperature

-40

125

°C

humidity

non-condensing

85

%

vibration

10~500 Hz, 5 minute sweep, 2 hours on each XYZ

5

G

shock

3 pulses, 6 ms, 3 on each XYZ

200

G

RoHS

yes

SERIAL INTERFACE

parameter

conditions/description

min

typ

max

units

protocol

serial UART

controller

Driven by onboard Microchip PIC18F25K80. See Micro-

chip documentation for additional details.

data rate

8 data bits, no parity, 1 stop bit, least significant bit first

115200

baud

Z

A

B

I

P

T

S S S S

Quadrature signals with index showing

counter-clockwise rotation

Figure 1

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

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.

Note:

For more information regarding PPR, CPR, or LPR (Lines Per Revolution) view https://www.sameskydevices.com/blog/what-is-encoder-ppr-cpr-and-lpr

Additional Resources: Product Page | 3D Model