Hello,Welcome to our Website | English Chinese | 
TEL:
+86-519-85138377
Stepper motor
stepper motor supplier & manufacturer
  • DQ420MA Model:DQ420MA
    DQ420MA  is a type  of two-phase hybrid stepping motor driver, The drive voltage of which is from 12VDC to 36VDC. It is designed for use with 2-phase hybrid stepper motor of all kinds with 20mm to 42mm outside diameter and less than 2.0A phase current. This circuit that it adopts is similar to the circuit of ......

Introduction
Relevant

  

1.    Introduction:

DQ420MA is a type of two-phase hybrid stepping motor driver, the drive voltage of which is from 12VDC to 36VDC. It is designed for use with 2-phase hybrid stepper motor of all kinds with 20mm to 42mm outside diameter and less than 2.0A phase current. This circuit that it adopts is similar to the circuit of servo control which enables the motor to run smoothly almost without noise and vibration. Holding torque when DQ420MA driver runs at high speed is also significantly higher than other two-phase drivers, what’s more, the positioning accuracy is also higher. It is widely used in middle and big size numerical control devices such as curving machine, CNC machine, and computer embroider machine, packing machines and so on.

Features:

l  High performance, low price

l  Average current control, 2-phase sinusoidal output current drive

l  Supply voltage from 12VDC to 36VDC

l  Opto-isolated signal I/O

l  Over-voltage, under voltage, over-current, phase short circuit protection

l  8 channels subdivision and automatic idle-current reduction

l  8 channels output phase current setting

l  Offline command input terminal

l  Motor torque is related to speed, but not related to step/revolution

l  High start speed

l  High holding torque at  high speed

 

 

 

 

Electrical specification:

 

Input voltage

12-36VDC

Input current

2A

Output current

0.44A- 2.83A

Consumption

Consumption40W 

Temperature

Working Temperature -1045℃;

Stocking Temperature -40℃~70

Humidity

No condensation, no water droplets

gas

Prohibition of combustible gases and conductive dust

weight

70G

 

 

2.    Pins assignments and description:

 

1)     Connector Pins    Configurations

Pin Function

                Details                                                          

PUL

Pulse signal input terminal

DIR

DIR signal input terminal

+5V

All positive signal input terminal

ENA+

 

Enable signal input terminal offline state

 

Enable signal in Offline state is reset for correcting drive malfunctions, prohibiting any valid pulse, when the output power device of drivers is turned off, the motor will be without holding torque.

 

2) Pins wiring diagram:

PC’s control signals can be active in high and low electrical level. When the high electrical level is active, all control negative signals will be connected together to GND. When low electrical level is active, all control positive signals will be connected together to public port. Now give two examples (Open collector & PNP), please check them:

 

                     Fig 1. Input port circuit (Positive connection)

                            PC open connector output

 

 

Note: When VCC=5V, R=0

        When VCC=12V, R=1K, >1/8W

       When VCC=24V, R=2K,>1/8W

R must connect in the control signal part

 

3. Function choice (Using DIP pins to achieve this function)

 1) Microstep resolution is set by SW 5,6,7,8 of the DIP switch as shown in the following table:

 

SW5

ON

OFF

ON

OFF

ON

OFF

ON

OFF

SW6

ON

ON

OFF

OFF

ON

ON

OFF

OFF

SW7

ON

ON

ON

ON

OFF

OFF

OFF

OFF

Pulse/rev

200

400

800

1600

3200

6400

12800

25600

Micro

1

2

4

8

16

32

64

128

 

 

 

2) Standstill current setting

SW4 is used for this purpose. ON meaning that the standstill current is set to be half of the selected dynamic current and OFF meaning that standstill is set to be the same as the selected dynamic current.

3) Output current setting:

The first three bits (SW 1, 2, 3)of the DIP switch are used to set the dynamic current. Select a setting

Closest to your motor’s required current 

SW1

SW2

SW3

PEAK

RMS

ON

ON

ON

0.44 A

0.31 A

OFF

ON

ON

0.62 A

0.44 A

ON

OFF

ON

0.74 A

0.52 A

OFF

OFF

ON

0.86 A

0.61 A

ON

ON

OFF

1.46 A

1.03 A

OFF

ON

OFF

1.69 A

1.20 A

ON

OFF

OFF

2.14 A

1.51 A

OFF

OFF

OFF

2.83 A

2.00 A

 

4) Semi-flow function:

Semi-flow function is that there is not step pulse after200 ms, the driver output current automatically reduced to 40% of rated output current, which is used to prevent motor heat.

 

 

4.  Pins of motor & power:

 

Motor and power pins

1

A+

Motor’s wiring

 

2

A-

3

B+

4

B-

5,6

DC+

DC-

Power supply

Power supply DC12-36VDC

The peak input current cannot be up to 2A

 

5. Mechanical Specification:

To have 20mm of space around, it cannot be placed near to other heating devices. What’s more, avoid dust, oil mist, corrosive gas, heavy humidity and high vibration. (Unit=mm)

 

6. Adjustment of troubleshooting

1)  The status on light’s indication
PWR: green, normal work light.
ALM: red, failure light, the motor with phase short-circuit, overvoltage and under-voltage protection.

2) Troubles

Alarm indicator

Reasons

Measures

LED off turn

Wrong connection for power

Check wiring of power

Low-voltages for power

Enlarge 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

Without input pulse signal

Adjust PMW & signal level

Motor runs wrong direction

Wrong wires’ connection

Change connection for any of 2 wires

Wrong input direction signal

Change direction setting

Motor’s holding torque is too small

Too small relative to current setting

Correct rated current setting

Acceleration is too fast

Reduce the acceleration

Motor stalls

Rule out mechanical failure

Driver does not match with the motor

Change a suitable driver

 

 

 

 

About Us
Company Profile
Culture
Certificate
Mail System

Products
Hybrid Stepper Motor
Brushless Dc Motor
Gearbox Stepper Motor
Driver
Learn More>>

News
Company News
Industry News

Services
Guest Book
Contact Us

   
 
Find
 
     
 
 
     
JiangSu WanTai Motor Co.,Ltd Copyright © 2007-2018   ICP07508477