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date 06/26/2018 │ page 2 of 6CUI Inc │ SERIES: NEMA11-AMT112S │ DESCRIPTION: STEPPER SERVO MOTOR
AMT112S ENCODER
ELECTRICAL
parameter conditions/description min typ max units
power supply VDD 4.5 5 5.5 V
start up time 200 ms
current consumption with unloaded output 16 mA
output high level VDD-0.1 V
output low level 0.1 V
output current (per channel) 15 mA
rise/fall time 8 ns
INCREMENTAL CHARACTERISTICS
parameter conditions/description min typ max units
channels CMOS Voltage: A, B, Z
waveform CMOS voltage square wave
phase dierence A leads B for CCW rotation (viewed from front)
quadrature resolutions148, 96, 100, 125, 192, 200, 250, 256, 360, 384, 400, 500,
512, 768, 800, 1000, 1024, 1600, 2000, 2048, 2500, 4096 PPR
index2one pulse per 360 degree rotation
accuracy 0.2 degrees
quadrature duty cycle 50 %
Notes: 1. Resolution programmed with AMT Viewpoint™ PC software. Default resolution set to 400 PPR.
2. Zero position alignment set with AMT One Touch Zero™ module, AMT Viewpoint™ PC software, or serial commands
MECHANICAL
parameter conditions/description min typ max units
weight 15.7 g
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
ENCODER WAVEFORMS
Z
A
B
P
T
S S S S
Quadrature signals with index showing
counter-clockwise rotation
Figure 1
Parameter Description Expression Units
T period 360/R mechanical degrees
P pulse width T/2 mechanical degrees
I index width P/2 mechanical degrees
S A/B state width P/2 mechanical degrees
The following parameters are dened by the resolution selected for each
encoder, where R = resolution.
Additional Resources: Product Page | 3D Model