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  • Ultra-compact driver measuring a mere 2.2 x 2.9 x 1.7 Inches.
  • Uni-polar constant current driver.
  • The micro-stepping feature may be selected from anyone of the following settings: 1/1 (full step), 1/2 (micro-step), and 1/4 (micro step).
  • Through the use of 3-bit external signals, electric current settings may be specified to any one of 8 different settings from 0.33 - 2.00 A/phase.
  • Input commands may be selected from either direction-of-rotation separate serial pulse signals or a combination of directional signals and pulse signals.
Unit of Measure

Applicable Motor

N/A KH4234-B901 KH4238-B901 KH4238-B902 KH4242-B901 KH4242-B902 KH4248-B901 KH4254-B901

Product Type

N/A Stepper Motor


N/A Driver

Winding Method

N/A Unipolar

2-Phase Hybrid Stepping Motor Drivers

Accessory-Leadwire Assembly

Connector Specifications

Explanation of Dynamic Torque Curves

Functions Setting and Connections (FSD2U2P14-01)

Input Circuit

Input Signal and Motor Direction Relation

Input Signal Specifications

Power Supply Specification

Required Operating Environment