SAME SKY | SERIES: AMT33 | DESCRIPTION: MODULAR COMMUTATION ENCODER

date 09/12/2024 | page 2 of 11

sameskydevices.com

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

COMMUTATION CHARACTERISTICS

parameter

conditions/description

min

typ

max

units

channels

CMOS Voltage (S)

Line Driver (D)

A, B, Z, U, V, W

A, A, B, B, Z, Z, U, U, V, V, W, W

motor poles4

2, 4, 6, 8, 10, 12, 20

waveform4

CMOS voltage square wave

phase difference

WYE motor winding configurations

120

electrical

degrees

Notes:

4. Pole counts and waveform direction set via AMT Viewpoint™ PC software. Default poles set to 4 poles and counter-clockwise direction.

¯

¯

¯

¯

¯

¯

Additional Resources: Product Page | 3D Model