Leadshine Stepper Drives Quick Start Guide
Page 8 of 17Leadshine Stepper Drives Quick Start Guide – First Edition – 11/04/2019
The DM322E is a compact drive capable of pulse and direction
operations, with auto-motor configuration on power up.
0�3–2�2 A peak
(0�2–1�6 RMS)
12–30 VDC
(24 VDC typical)
PUL
5V signal, single-ended input� High input is
4-5V, Low input is 0-0.5 V. Minimum pulse width = 2.5 μs.
Add a 1kꭥ resistor for +12V signals, 2kꭥ for +24V signals.
5V signal, single-ended input� High input is 4-5V,
Low input is 0-0.5 V. Minimum pulse width = 2.5 μs. Add a
1kꭥ resistor for +12V signals, 2kꭥ for +24V signals.
requires 5μs setup time.
see DIP switch SW14�
OPTO
This input is the voltage supply for the Pulse, Direction, and
Enable opto-couplers. Connect 5VDC (or +12V, +24V with
appropriate resistors on Pulse, Direction, and Enable inputs)�
5V signal, single-ended input� High input is
4-5V, Low input is 0-0.5 V. Minimum pulse width = 2.5 μs.
Add a 1kꭥ resistor for +12V signals, 2kꭥ for +24V signals.
Close (pull low) to disable the drive�
Power supply ground connection�
+V Power supply positive connection�
Motor phase A connections. Connect motor A+ wire to A+
pin, motor A- wire to A- pin�
Motor phase B connections. Connect motor B+ wire to B+
pin, motor B- wire to B- pin�
4-lead motors are the easiest to connect, and the speed – torque of the motor depends on winding
inductance. To determine the output current of the drive, multiply the nameplate motor phase current
by 1.4 to determine the peak output current. If the motor runs too hot then multiply by 1.2 instead. For
6-lead and 8-lead motor wiring information, please refer to the drive User Manual.
The drives are designed to operate within a specific voltage input (see specifications table). When
selecting a power supply, choose a power supply with an output range within the minimum and
maximum of the drive and be sure to leave room for power supply fluctuation and motor back-EMF.
The DM322E drive can be connected for either sinking or differential control signals. Wire the
connections to the motor, power supply, and controller according to the diagrams on the next page:
