42HS Series Hybrid Stepping Motors 42HS Series Hybrid Stepping Motors General Specifications Step Angle Degree Accuracy ±5%(full step，no load) 1.8º Temperature Step Angle Accuracy Rise 80°CMaxstep，no load) ±5%(full Ambient Temperature Temperature Rise -10°C ——+50°C 80°CMax InsulationTemperature Ambient Resistance 100MΩmin.500VDC -10°C —— +50°C Dielectric Strength Insulation Resistance 500VAC for one minute 100MΩmin.500VDC Shaft Radial Dielectric Strength Play 0.06 Max.(450g-load) 500VAC for one minute Shaft Radial Axial Play Play 0.08 max.(450g-load) 0.06 Max.(450g-load) Shaft Axial Play 0.08 max.(450g-load) Electrical Specifications Model Number 42HS02 Connection － Motor Holding Length L Torque Oz-in inch (mm) (Nm) 1.34（40） 31.15（0.22） (Bipolar) Parallel 42HS03 (Bipolar) Series Unipolar Number of Leads 4 66.55（0.47） 1.89（48） 66.55（0.47） 48.14（0.34） 8 Phase Phase Current Resistance (Amps) (Ohm) 0.4 12.5±10% 1.4 2.3±10% 4±20% 0.7 9.2±10% 16±20% 1.0 4.6±10% 4±20% Phase Inductance Rotor Inertia (mH) Oz-in-sec² (g.cm²) Detent Torque Weight Oz Oz-in (g.cm) (kg) 21±20% 0.000809（57） 2.21（153） 8.47（0.24） 0.001164（82） 2.83（204） 11.99（0.34） * Above motors are our typical models, and if you need a customization motor, please contact us. Mechanical Specifications (Unit=mm, 1 inch=25.4mm) Figure 1: Mechanical specification of 42HS02 Tel: +086 0755-26434369 Email: [email protected] Page: 1/3 Web Site: www.leadshine.com 42HS Series Hybrid Stepping Motors Figure 2: Mechanical specification of 42HS03 Wiring Diagrams （a） 42HS02 connection （b） 42HS03 (bipolar)series connection （c） 42HS03 (bipolar) parallel connection （d） 42HS03 unipolar connection Figure 3: Wiring diagrams Tel: +086 0755-26434369 Email: [email protected] Page: 2/3 Web Site: www.leadshine.com 42HS Series Hybrid Stepping Motors Speed-Torque Characteristics Unipolar and bipolar half coil, because we’re using less turns, doesn’t give us great low speed torque, but because of the low inductance, holds the torque out to high speeds. Bipolar series uses the full coil so it gives very good low speed torque. But because of the high inductance, the torque drops off rapidly. Bipolar parallel also uses the full coil so it gives good low speed performance. And its low inductance allows the torque to be held out to high speeds. But remember, we must increase current by 40% to get those advantages. Speed-torque curves show the maximum torques that can be output at a given speed. When selecting a motor, make sure the required torque falls within the particular curve. l 42HS03 Figure 4: Speed-torque curves of the 42HS03 Remarks: 1. Title "42HS03 Rated current/phase: Parallel, 1.4A (RMS); Series, 0.7A (RMS); Half-coil, 1.0A (RMS)" means "When the 42HS03 used in parallel mode, its current/phase is 1.4A (RMS); When the 42HS03 used in series mode, its current/phase is 0.7A (RMS); When the 42HS03 used in half-coil or unipolar mode, its current/phase is 1.0A (RMS)". 2. Legend "42HS03, Parallel, HA335, 35VDC, 2.0A (Peak), Half Step" means "This speed-torque curve of the 42HS03 (connected in parallel mode)was done with the HA335 driver. The settings of the HA335 are 2.0A (Peak), Half Step and use 35VDC power supply ". 3. The actual characteristics will vary depending on the driver used. Please use these curves only for reference purposes when selecting a motor. You must also conduct a thorough evaluation with the actual driver to be used. Please consult “Leadshine Motor and Driver Packages” for more information about this issue. Tel: +086 0755-26434369 Email: [email protected] Page: 3/3 Web Site: www.leadshine.com