Additional Resources: Product Page 3D Model date 02/21/2020 page 1 of 6 SERIES: NEMA08-AMT112S DESCRIPTION: STEPPER SERVO MOTOR FEATURES CUI Devices AMT112S encoder + LIN Engineering stepper motor stepper motor with encoder for closed-loop mode when paired with a controller small, compact NEMA 08 frame size up to 4 oz-in (0.028 N-m) holding torque patented capacitive encoder ASIC technology incremental resolutions up to 4096 PPR resolutions programmable with AMT Viewpoint PC software digitally set zero position IN PARTNERSHIP WITH step current/ resistance/ inductance max max body length MODEL angle phase phase /phase holding optimal torque speed typ typ max (A) (10%) (mH20%) (oz-in) (RPS) (inch) () NEMA08-13-01D-AMT112S 1.8 0.60 6.5 1.7 3.0 1 1.3 NEMA08-17-01D-AMT112S 1.8 0.80 5.4 1.5 4.0 1 1.7 cuidevices.comAdditional Resources: Product Page 3D Model CUI Devices SERIES: NEMA08-AMT112S DESCRIPTION: STEPPER SERVO MOTOR date 02/21/2020 page 2 of 6 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 difference A leads B for CCW rotation (viewed from front) 48, 96, 100, 125, 192, 200, 250, 256, 360, 384, 400, 500, 1 quadrature resolutions PPR 512, 768, 800, 1000, 1024, 1600, 2000, 2048, 2500, 4096 2 index one 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 48, 96, 100, 125, 192, 200, 250, 256, 384, 400, 8000 RPM 500, 512, 800, 1000, 1024, 2048 rotational speed (at each resolution) 360, 768, 1600, 2000, 4096 4000 RPM 2500 2500 RPM ENCODER WAVEFORMS Figure 1 Quadrature signals with index showing counter-clockwise rotation I Z A T S S S S P B The following parameters are defined by the resolution selected for each encoder, where R = resolution. 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 cuidevices.com