MB450A Two-phase hybrid stepping motor driver user manual

Overview:

MB450A Subdivision-phase hybrid step motor driver , DC 18~50V power supply suitable for driving voltage 24V~ 50V Current is less than 4 .2A Outer diameter 42 ~86 mm of two-phase hybrid stepping motor. This drive using current loop control of AC servo drive and motor torque fluctuations are small, low speed operation is very smooth , almost no noise and vibration. High speed torque is also significantly higher than the other two drives, high positioning accuracy. Widely used in engraving machine, CNC machine tools, packaging machinery, and other devices with high resolution requirements.

Main features:

1 Average current control, two-phase sinusoidal current driver output

2 DC 18~50V power supply

3 Opto-isolated input / output

4 Overvoltage, undervoltage, overcurrent, short circuit protection

5 16 segment and automatically half streaming

6 Eight output current setting

7 With Offline command input terminals

8 The torque of the motor and its speed, and has nothing to do with the number of motor steps per revolution

9 High starting speed

10 High speed torque

Electrical parameters:

Input voltage	Streaming 18~ 5 0V Enter
Input current	Less than 4 amps
Output current	1.0A ~ 4 .2A
Power consumption	Power consumption:80W; internal insurance:6A
Temperature	Working temperature -10~45℃ storage temperature -40℃ ~ 70 ℃
Humidity	No dew, there must be no water
Gas	Prohibition of the combustible gases and conductive dust
Weight	200 G

Note: dip switch on not turn well, no live action, remember that!

Control signal connector:

Figure 1 drive wiring diagram

Control signal definitions

PLS+ : Step pulse signal input positive or positive step pulse signal input positive

PLS- : Step pulse signals enter a negative or positive step pulse signal input negative terminal

DIR+ : Step into the direction positive or negative step signal input pulse signal input end

DIR- : Step into the direction of signal input negative terminal or negative step pulse signal input negative terminal

ENA+ : Offline enable reset signal input positive

ENA- : Offline enable reset signal input negative terminal

Offline enable signal effectively reset the drive failure, and no effective pulse, drive the output power devices is turned off, motor keep torque.

Note: VCC to 5V Shi,r short;

VCC Values for 12V Shi,r 1K, is greater than the 1/8W resistance;

VCC For 24V Shi,r 2K, is greater than the 1/8W resistance;

R End must be connected to the controller signals

Wiring diagram:

 

Feature selection (drive Panel on DIP switch)

Set the number of motor steps per revolution

Drive motor steps per revolution can be set separately for the 400and the800, and1000, and1600, and2000and the3200, and4000, and5000, and6400, and 8000, and10000, and12800, and20000, and25000and the25600 steps. Users can drive front panel on dip switch SW5, andSW6, andSW7, andSW8 to set the number of drives (table 1):

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

Number of steps

400

800

1600

3200

6400

12800

25600

1000

2000

4000

5000

8000

10000

20000

25000

Table 1

Control mode selection

Dip switch SW4 -bit can be set in two modes:

When set to "OFF" when for half a function.

When set to "ON", the half-free streaming.

Set the output of the current

Different torque stepping motor to drive, users can drive front-panel dip switches SW1, andSW2, andSW3 to set the drive's output current (RMS) amp, switch position corresponds to the output current, the output current value is different for the different types of drives. As shown in table 2.

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

Table 2

Half function

Half stream means no step pulse 500ms Hou, drive rated output current output current is automatically reduced to 70%to prevent motor heating.

Power interface:

+V And theGND: connect drive power

+V : DC power stage, power supply voltage DC 18~50V.

GND : DC Power level.

A+ A- B+ B- : Connect the two phase hybrid stepping motor

Two-phase hybrid stepping motor and drive are connected by four-wire, motor windings are connected in parallel and serial connections and joining method, high-speed performance, but the drive current ( for motor winding current of 1.73 times ),

Series connection drive current equal to the motor winding current.

Size chart:

Troubleshooting:

Status lights indicate

RUN : Green light is working correctly.

ERR : The Red fault light, motor phase short circuit, over voltage and under voltage protection.

Malfunctions and their elimination

Fault	Reason	Solutions
LED Does not light	Power supply connected to the wrong	Check the power connections
	Low power supply voltage	Increase the power supply voltage
Motor does not turn, and no keep torque	Motor wired wrong	Correct electrical connection
	Enables offline RESET signal	RESET invalid
Motor does not turn, but to keep the torque	No pulse signal input	Adjusting the pulse width and signal level
Direction of motor rotation error	Power phase sequence error	Swap any two phase wires
	Wrong signal input	Changes the direction setting
Motor torque is too small	Phase current is set too small	Correctly set the phase current
	Speed too fast	Reduced acceleration
	Motor locked rotor	Troubleshoot mechanical problems
	Drive motor does not match	Swapping the right drive