Stepper Motor Drivers

DQ542MA Stepper Motor Driver View larger

DQ542MA Stepper Motor Driver

HWPRDQ542MA

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The DQ542MA Stepper Motor Driver offers high torque at all speeds – Ideal for CNC, 3D printing and machines requiring precise numerical value control.

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The DQ542MA is one of the best value-for-money hybrid stepping motor drivers on the market, and is designed to drive bipolar hybrid stepper motors with outside diameters of between 42mm and 86mm at less than 4.0A phase current. By utilizing a similar circuit to typical servo control methods, the DQ542MA runs smoothly at both high and low speeds – with little to no noise or vibration.

Some of the top features of this stepping motor driver, when compared to more affordable alternatives like the TB6560, is that it maintains a high torque regardless of the speed at which it’s running. Additionally, this enhances the positional accuracy as well, making it ideal for professional applications within machines such as 3D printers, CNC milling machines and other machines with numerical control devices.

The DQ542MA also offers a semi-flow function, which automatically reduces the current down to 70% of the output current. This activates when the driver receives no pulse signals for 500ms, and essentially acts as a “semi-sleep” mode, to reduce power usage and prevent possible overheating between uses. To further prevent overheating or heat related problems, be sure to install this stepping motor driver away from other heating devices, and allow for 20mm of open space surrounding the unit for effective heat dispersion.

 

Electrical Specifications:

Input voltage

– 18VDC to 50VDC

Input current

– Less than 4.0A

Output current

– 1.0A~4.2A Peak (3.00A RMS)

Consumption

– Consumption : 80W   ;   Internal Limit : 6A

Working Temperature

– -10~45℃

Storage Temperature

– -40℃~70℃

Humidity

– No condensation, no water droplets. <90% RH

Gas

– Prohibition of combustible gases and conductive dust

Weight

– 300g

 

Features and Technical Specifications:

Average Current Control

– 2-Phase Sinusoidal Output Current Drive

Input/Output Method

– Opto-isolated Signal

Command Input Terminal

– Offline

Phase Current Setting Output Channels

– 8

Subdivision Channels

– 15

Motor Torque Control

– Relative to Speed ; Not Relative to Steps/Revolutions

Short Circuit Protection

– Overvoltage; Under-voltage; Overcurrent; Phase

Additional Features

– High Starting Torque and Speed

 

– High Holding Torque at All Speeds

 

– Automatic Idle-Current Reduction

 

– Exceptional Performance/Low Price

 

 

Connector Pin Assignments and Descriptions

Pin Function

                                Details

 

 

PUL +,PUL-

Pulse signal:       PUL+ is the positive end of pulses input pin

                                PUL- is the negative end of pulse input pin

DIR+,DIR-

DIR signal:          DIR+ is the positive end of direction input pin

                                DIR- is the negative end of direction input pin

ENBL+

Enable signal:    ENBL+ is the positive end of direction input pin. This signal is used                                 for enabling/disabling the driver. High level for enabling the driver                                 and low level for disabling the driver.

ENBL-

ENBL- is the negative end of direction input pin. Often left unconnected (Enabled)

 

 

DIP Pin Functions and Function Choices

The DQ542MA Stepper Motor Driver utilizes the SW1 to SW8 DIP pins to control the function of the stepper motors, the output current, as well as whether the current must be on standstill or not. The first three (SW1, SW2 and SW3) pins define the output current settings and should be adjusted according to the dynamic current necessary for your motor. The next pin (SW4) determines the current standstill setting, and is essentially a soft on/off switch, which sets the current to half when the motor is not in use. The final four pins (SW 5, SW6, SW7 and SW8) are for setting the micro step resolution, defining the amount of pulses per revolution.

 

DIP Pins SW4 to SW8: Micro Step Revolution Settings Chart

SW5

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

SW6

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

SW7

ON

ON

ON

OFF

OFF

OFF

OFF

ON

ON

ON

ON

OFF

OFF

OFF

OFF

SW8

ON

ON

ON

ON

ON

ON

ON

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

PULSE/REV

400

800

1600

3200

6400

12800

25600

1000

2000

4000

5000

8000

10000

20000

25000

 

 

DIP Pins SW1 to SW3: Output Current Settings

When deciding on these settings, be sure to check your stepper motors and set the output current to a value that best caters to your motors’ input current requirement.

Output Current (A)

SW1

SW2

SW3

PEAK

RMS

ON

ON

ON

1.00

0.71

OFF

ON

ON

1.46

1.04

ON

OFF

ON

1.91

1.36

OFF

OFF

ON

2.37

1.69

ON

ON

OFF

2.84

2.03

OFF

ON

OFF

3.31

2.36

ON

OFF

OFF

3.76

2.69

OFF

OFF

OFF

4.20

3.00

 

 

Troubleshooting Chart

If you are experiencing problems relating to the DQ542MA Stepper Motor Driver, utilize the following chart, which notes some of the most common problems, as well as reasons for the problems and possible solutions.

Problem / Alarm

Potential Reasons

Possible Solution

 

 

 

LED off turn

Wrong connection for power

Check wiring of power

Low-voltages for power

Increase voltage of power

Motor doesn’t run, without holding torque

Wrong connection of stepper motor

Correct its wiring

RESET signal is effective when offline

Make RESET ineffective

Motor doesn’t run, but maintains holding torque

Low or absent input pulse signal

Adjust PMW & signal level

Motor runs wrong direction

Wrong wires’ connection

Change connection for any 2 wires

Wrong input direction signal

Change direction setting

Motor’s holding torque is low or ineffective

Too small relative to current setting

Correct rated current setting

Acceleration is too fast

Reduce the acceleration

Motor stalls

Check for mechanical failure

Driver does not match with the motor

Change to a more suitable driver

 
 

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DQ542MA Stepper Motor Driver

DQ542MA Stepper Motor Driver

The DQ542MA Stepper Motor Driver offers high torque at all speeds – Ideal for CNC, 3D printing and machines requiring precise numerical value control.

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