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MD882ES

Date: 2021-05-08
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MB882ES is a stepper motor driver with constant angular moment and high subdivision, which adopts the precise current control technology of servo pure method. The technology can significantly improve the noise and stability of the motor. The maximum driving current is 7.8A, and the maximum positioning accuracy of 64 subdivisions can reach 12800 steps/turn typical operating voltage of 68VDC.



application area

Suitable for all kinds of automation equipment and instruments in the field of motion control, such as electronic processing and testing, semiconductor packaging, laser cutting and welding, laser phototypesetting, packaging machinery, marking machine of engraving machine, cutting machine, clothing plotter, numerical control machine tool, automatic assembly equipment, etc. It is the first choice in the field where users expect low noise, high speed performance and cost-effective competition.

Driver Function Description

1) Micro-step fraction setting:

Four dial switches SW5-SWB are used to set the driver's maximum step fraction. I have 16 micro-step fractions. When the user sets the micro-step subdivision, the driver should stop running first. For setting the number of steps, please specify the layout of the actuator.

2) Output current setting:

The output current of the driver can be set by three code-assisted switches SW1-SW3. Specific output current settings, please see the driver layout instructions.

3) Automatic half-stream function:

Users can use SW4 to set the driver's automatic half-stream function. OFF means that the static current is set to half of the dynamic current, and ON means that the static current is the same as the dynamic current. SM4 should be set as OFF in general use to reduce the heat of motor and driving screen and improve the reliability. About 0.4 seconds after the stop of the pulse train, the current automatically decreases to - half (60% of the actual value), and the projection theory decreases by 36%.

4) Signal interface:

PUL + and PUL - for controlling the positive and negative DIR + and DIR - for directional signal positive and negative ENA + and ENA for enabling signal positive and negative.

5) Motor interface:

The positive and negative ends of phase A windings of A + and A-connected stepping motors and the positive and negative ends of phase B windings of B-connected stepping motors. When the B two-phase windings are switched, the direction of the motor can be reversed.

6) Power interface:

Using DC power supply, the working voltage of Fanyuan is 24-80VDC, and the power supply is more than 300 W.

7) Indicator lights:

The driver has two red and green lights. Among them, the green light is the power indicator. When the driver is powered on, the green light always lights up the red light as the fault indicator. When there is over-voltage and over-current fault, the Jinghai light always lights up. The red light goes out after the trouble is cleared. When the driver starts to block, only re-energizing and re-energizing can remove the block.

8) Installation instructions:

The size of the driver is 140x97x48 mm. The distance between mounting holes is 133 mm. It is suggested that the driver be mounted vertically or visually. When installed, it should be tightly attached to the metal cabinet to facilitate heat dissipation.


Parameter setting

MDBB2ES driver uses 8-bit dial switch to set subdivision accuracy, dynamic current and half-current. 


Detailed description is as follows:


MD882ES


Working current setting:



Output peak current

Output mean current

SW1

SW2

SW3

1.8A

1.3A

off

off

off

2.5A

1.8A

on

off

off

3.5A

2.5A

off

on

off

4.3A

3.1A

on

on

off

5.2A

3.7A

off

off

on

6.0A

4.3A

on

off

on

7.0A

5.0A

off

on

on

7.8A

5.6A

on

on

on


Micro-setting:

Steps / turn

SW5

SW6

SW7

SW8

200

off

off

off

off

400

on

off

off

off

500

off

on

off

off

800

on

on

off

off

1000

off

off

on

off

1250

on

off

on

off

1600

off

on

on

off

2000

on

on

on

off

2500

off

off

off

on

3200

on

off

off

on

4000

off

on

off

on

5000

on

on

off

on

6400

off

off

on

on

8000

on

off

on

on

10000

off

on

on

on

12800

on

on

on

on


Installation dimensions:


MD882ES


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