Stepper Motor Driver & Controller Manufacturer

Description:

This is a digital stepper driver (DM420) implemented with advanced stepper control technology. It is easy to use and it can be used to drive 2-phase stepping motors (from Nema 8-Nema 17 size) smoothly with less heat and noise. It works with 18 - 30VDC voltage and can provide max 2.0A peak current. You can set the DIP switches to get the current and microsteps you need.

DM420 Driver Features：

Average current control, two-phase sinusoidal current drive outputs.
Optically isolated signal input/output.
Step & direction(PUL/DIR) control.
Multi-Stepping for smooth motor movement.
Optically isolated inputs.
Input voltage 18 - 30VDC.
8 selectable micro-step resolutions of 400 -12800 via DIP switches
8 selectable output current settings of 0.3 – 2.0A via DIP switches
Over-voltage, under-voltage, over-current, phase-to-phase short circuit protection function.

Electrical Specifications:

Output Peak Current: 0.3A - 2.0A (1.4RMS)
Input Voltage: +18VDC - 30VDC

Operating Environment and other Specifications:

Gases: Flammable gases and electrically conductive dusts are prohibited.
Cooling: Natural Cooling or Forced cooling.
Environment: Avoid dust, oil fog and corrosive gases
Ambient Temperature: 0℃ － 65℃
Humidity: 40%RH－90%RH
Operating Temperature: 50℃ MAX
Storage Temperature: -20℃ － 80℃

Hybrid Stepper Motor Driver Description：

Brand	Leanmotor
Model	DM420
Driver Type	Stepper Driver
DC / AC	DC
Suitable Motor	Nema 8 11 14 16 17 Hybrid Stepper Motor
Input Voltage	18V - 30V
Output Current	0.3A - 2.0A
Subdivide Setting	8 (400 - 12800)
Storage Environment	-20℃ - 80℃

Features：

● Average DC control with two-phase sinusoidal AC drive outputs

● DC +18 ~ +30V power supply

● Optically isolated signal input/output

● Over-voltage, under-voltage, over-current and phase-to-phase short-circuit protections

● Current 8 steps, settable range 0.3A ~ 2.0A

● Subdivision 8 steps, range 400 ~ 12800

Interface Signal Description：

Pins	Functions
PUL	Pulse signal
DIR	Direction signal
VCC	Pulse direction enable power supply
ENA-	Enable signal
A+	A phase of stepper motor
A-	A phase of stepper motor
B+	B phase of stepper motor
B-	B phase of stepper motor
GND	DC power input：0V
VDC	DC power output：18 ~30V

DIP Switch Setting：

In order to drive different torque stepping motors, users can set the output phase current of the driver through the dip switches SW1, SW2, SW3 on the driver panel, the output current corresponding to each switch position, the output current corresponding to different models of the driver is different, details see the table below:

SW1	SW2	SW3	PEAK（A)	RMS（A）
ON	ON	ON	0.3	0.21
OFF	ON	ON	0.5	0.35
ON	OFF	ON	0.7	0.5
OFF	OFF	ON	1.0	0.71
ON	ON	OFF	1.3	0.92
OFF	ON	OFF	1.6	1.13
ON	OFF	OFF	1.9	1.34
OFF	OFF	OFF	2.0	1.42

Micro step subdivision setting：

Step/Rpm	SW5	SW6	SW7
400	ON	ON	ON
800	OFF	ON	ON
1600	ON	OFF	ON
3200	OFF	OFF	ON
6400	ON	ON	OFF
12800	OFF	ON	OFF
4000	ON	OFF	OFF
8000	OFF	OFF	OFF

Digital BLDC Motor Driver Dimension :

57/60 BLS Series BLDC Motor Driver Manual:

1, Q: The motor does not turn and no holding torque:

A: ① check whether the power line is connected to the wrong voltage is too low, need to increase the voltage or correct the power line

② check whether the motor wiring is correct, if not correct motor wiring. Check if the motor wiring is correct, if not, correct the motor wiring.

③ Whether the enable signal is valid, resulting in the motor does not work.

④ Is the subdividing parameter correct?

⑤ Is the current parameter correct?

2、Q：Motor does not rotate but has holding torque:

A: ① The phase sequence of motor wires is wrong, need to swap any two wires.

② Pulse signal input is wrong, need to check the pulse wiring.

3、Q: The motor torque is too small:

A: ① Phase current setting is too small, need to set the phase current corresponding to the motor.

② acceleration is too fast, reduce the acceleration value

③ motor blocking, need to rule out mechanical problems

④ drive and motor mismatch, need to replace the appropriate drive

4、Q：Motor steering error:

A: ① motor line phase sequence is wrong, need to swap any two wires

② motor line has a broken circuit, check and connect the right

5、Q：The alarm indicator light is on:

A: ① Is the motor wire connected incorrectly

② Whether there is over-voltage and under-voltage conditions

③ Motor or driver is damaged

6、Q：Motor acceleration blocking:

A: ① short acceleration time

② motor torque is too small

③ Low voltage or current