CS-D403 Closed Loop Stepper Drive User Manual
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1. Introduction
Leadshine CS-D403 is a closed loop stepper drive designed to solve the loss of step problem in open loop stepper
control systems, thus increase system reliability at minimal cost increase. It implements advanced control algorithm of
Leadshine based on its tens of years’ experience in stepper and servo controls. The CS-D403 is highly reliable and
affordable and performs excellent in many industrial applications such as CNC, medical, electronics, packaging...
The CS-D403 can power 2-phase NEMA 8,11, 14 and 17 stepper motors with incremental encoders. Compared with
traditional open loop stepper systems, a CS-D403 adopted closed loop step system can eliminate potential loss of step,
make real-time position error correction, and do not need torque reservation (100% torque implementation). Also it can
power the driven stepper motor with reduced heating, lower noise, low vibration…
1.1 Features
No loss of step
No torque reservation
No hunting or overshooting
No tuning for easy setup
A configurable digital output for the option of Fault Output, In Position, or Brake Control
Low noise and vibration, smooth motion
Enhance performance at low speed application( <60RPM)
20-50VDC supply voltage, max 3A output current
Max 200 KHz input frequency
15 micro step settings of 800-51,200 via DIP switches, or 200-51,200 via software (increase by 200)
Protections for over voltage, over current and position following error
1.2 Applications
When a CS-D403 closed loop stepper drive is implemented with a compatible stepper motor with encoder, the closed
stepper system can be adopted in many small to median speed applications such as CNC routers, CNC mills, CNC
laser cutters, CNC plasma, lab automation instruments, plotters, medical equipment, electronic equipment, small
packaging machines, etc.
