Hello,Welcome to our Website | English Chinese | 
TEL:
+86-519-85138377
Stepper motor
stepper motor supplier & manufacturer
  • DQ2722MA Model:DQ2722MA
    DQ2722MA is a new-generation digital 2-phase stepper motor driver based on DSP control. The driver combines advanced DSP control technique and unique control circuit. The driver voltage is AC110-230V and driver current is below 7.0A. The driver can be used......

Introduction
Relevant





DQ2722MA is a new-generation digital 2-phase stepper motor driver based on DSP control. The driver combines advanced DSP control technique and unique control circuit. The driver voltage is AC110-230V and driver current is below 7.0A. The driver can be used for types of 2-phase stepper motor with external diameter 86-130mm. The driver adopts circuit similar to servo control, so the motor can run smoothly with little vibration and noise. And the maximum positioning accuracy could reach 40,000 steps/rev. The product is widely used in big and medium-sized CNC equipment with higher resolution, such as engraving machine, medium-sized CNC machine tool, computer-controlled embroidery machine, packing machine, etc. 

 


●  High performance, low price

●  The driver features 16-grade micro-stepping with equal angular degree and constant torque; the highest resolution may reach 40,000 steps/rev.

●  The highest response frequency can reach 500Kpps

●  When the step-by-step impulse has halted for over 100ms, the coil current will automatically reduce to half of the set value, to effectively reduce motor warming.

●  Photoelectric isolation signal input/output

●  Driver current from 1.0A / phase to 7.0A / phase, adjustable with 16 grades

●  Single power input, voltage range: AC 110V to 230V

●  Phase memory function (when the input has stopped unexpectedly or powered off, the driver will automatically memorize motor phase at that time.)

●  I/O signal, the driver uses photoelectric isolation technique and signal level is 5V ~ 24V, compatible

●  Function of pulse smooth technique makes the motor run stably at low speed. The level of smooth can be adjusted.

●  It features motor inductance adjustment function, giving full play to the adaptive motor.

 



Port Function


Port definition

Pin number

Mark symbol

Function

Notes

RS-232

1

RX

Receiving data

Connected to serial port RX of upper computer (function preservation)

2

TX

Sending data

Connected to serial port TX of upper computer (function preservation)

3

GND

Ground wire

Connected to serial port ground of upper computer (function preservation)

4

5V

5V power

Connected to serial port power of upper computer (function preservation)

Signal port

1

PU+

Positive terminal of input photoelectric isolation signal

Can be driven by +5 V-+24 V

2

PU-

DP5 = OFF, PU is step-by-step impulse signal

Falling edge is effective; whenever the impulse drops from high to low, the motor moves one step.

Requirements: pulse width> 2.5μS

DP5 = ON, PU is positive step-by-step impulse signal

3

DR+

Positive terminal of input photoelectric isolation signal

Can be driven by +5 V-+24 V

4

DR-

DP5 = OFF, DR is direction control signal

Used to change turning direction of the motor.

Requirements: pulse width> 2.5μS

DP5 = ON, DR is negative step-by-step impulse signal

5

MF+

Positive terminal of input photoelectric isolation signal

Can be driven by +5 V-+24 V

6

MF-

The motor release signal

When it is active (at low level), the motor wiring current is turned off, and the driver stops working; the motor is in a free mode.

7

RDY+

The driver is ready to output positive photoelectric isolation signal.

When the driver is in normal state, ready to receive controller signal, the signal is active (at low level).

8

RDY-

The driver is ready to output negative photoelectric isolation signal.

 

Motor wiring

 

power supply terminal

1

B-

Motor wiring

 

2

B+

3

A-

4

A+

5

Ground wire

Groundconnected to aluminum cover

6

L

Power supply

Power Supply: AC110 ~230V 

7

N


 

 Signal Input Wiring


Common anode connection of input signal

           Controller                          Driver

 

Common cathode connection of input signal

           Controller                          Driver

 

 

Current & Micro-step Setting

 

 

 


Current setting

The working current of the driver is set by DIP-1 terminal, the working current is normal working output current (note: the current is effective current)

Working currentA

1.0

1.5

2.0

2.3

2.5

3.0

3.3

3.6

4.0

4.5

5.0

5.4

5.8

6.2

6.6

7.0

D1

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

ON

ON

ON

ON

ON

ON

ON

ON

D2

OFF

OFF

OFF

OFF

ON

ON

ON

ON

OFF

OFF

OFF

OFF

ON

ON

ON

ON

D3

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

D4

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

 

Micro-step setting

The micro-step is set by DIP-2 with 16 levels. The first 4 dip of DIP-2 is for micro-step setting and the last 2 dip is for function setting.

The attached table: steps (pulse/rev)

Step No.

200

400

800

1000

1600

2000

3200

4000

5000

6400

8000

10000

12800

20000

25600

40000

D1

ON

ON

ON

ON

ON

ON

ON

ON

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

D2

ON

ON

ON

ON

OFF

OFF

OFF

OFF

ON

ON

ON

ON

OFF

OFF

OFF

OFF

D3

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

D4

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

D5

ON, double pulsePU is positive step pulse signal, DR is negative step pulse signal

OFF, single pulsePU is step pulse signal DR is direction control signal

D6

Self-test switch (OFF: receive output pulse ;ON: run at 30rev/min)

 

                                                                                                 

 


 

‘ Possible problems & Solutions

 


Problem

Possible reason

Measure

Motor not run

No light with “POW” or ”ALM” indicator light

To check if the power supply is normal    

ALM indicator light is on

To check overcurrent or overheating, motor missing

The motor shaft is locked, the motor cannot operate.

To check external control signal

Indicator light shows normal, and the motor shaft is unlocked

To check if MF signal is active

Motor blocked

The max speed is set too high

To lower the max speed

The time for speeding up is too short

To lengthen the time or increase the pulse filtering constant of the driver

Inaccurate position

The micro-stepping number is not correct

To select the correct micro-stepping number

Excessive load for the motor

To replace the motor or moderately increase running current of the driver

"Leakage" phenomenon

The driver and motor is not reliably grounded

To reliably ground the driver and the motor

Severe warming of the driver and the motor

Large running current of the driver or bad external thermal conditions

To moderately reduce driver running current or improve ventilation of the driver and the motor

 


 

’  Caution


1、  The input voltage is lower than AC270V.

2.    Falling edge is effective of input pulse signal. If you need the rising edge to be effective, please set inner parameter of the driver.

3.    When the driver temperature goes beyond 75 degrees, it will halt working, and the fault indicator ALM will be on. Until the temperature drops to 50 degrees, the driver may resume work after a second-time power-on. In case of such overheat protection, please install heat sink.

4.    In case of overcurrent (short circuit of load), the fault indicator ALM will be on. Please check motor wiring and other fault of short circuit; after the fault is removed, it will resume upon a second-time power-on.

5.    In case of no motor, the fault indicator ALM will be on. Please check motor wiring; after the fault is removed, it will resume upon a second-time power-on.

 


 

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