Overview

NDM872H is a digital two-phase hybrid motor drive launched by Noketech. It adopts the latest DSP technology 

of Ti, and taking advanced digital filtering technology, anti-resonance technology and real-time precision current control technology to make it realize precise smooth operation, extra low noise. It’s especially suitable for semiconductor, electronic processing equipment, laser processing, medical equipment and small CNC equipment.

Adoptive motor: 57/60 series three-phase hybrid stepping motor.

Parameter setting switch description

1）Working (dynamic) current setting

2） Quiescent  (static) current setting

Static current can be set by SW4 DIP switch, on means that static current is the half of dynamic current, off means that the quiescent current is the same as the dynamic current.In general use, SW4 should be set to on 

to reduce the heat of the motordrive and improve the reliability.  About 0.4S  after the pulse train stops , the current is automatically reduced to about half (60% of the actual value), and the calorific value is theoretically reduced to 36%.

3）Micro step setting

NDM872H is a precision two-phase hybrid stepping drive, which can provide a maximum of 512 subdivision settings, the specific settings are shown as below.

Typical wiring case

The wiring diagram of NDM872H when using PLC control.

Typical wiring diagram when the control is PLC