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7.

Mechanical Dimensions

8.

Power Supply

The driver can work normally with power supply range between DC12V to DV40V, it is

better to use unregulated DC power supply, or it is workable to use transformer + bridge

+ filter capacitance, the capacitance can be 1100 uF or so.

Be reminded that the voltage

peak value not exceed 40V after adjusting current, otherwise the driver will be damaged.

It is recommended to use 24-36V DC power supply, it can avoid the voltage fluctuation

exceed the rate voltage range. MotionKing can supply the suitable DC power supply.

Using regulated switch power supply, please set the output current range to be the

maximum.

Attention:

1.

Not to reverse the power positive and negative when connecting;

2.

It is recommended to use non-stable power

3.

The voltage not to exceed the max. when the electric net power supply is fluctuant.

4.

When using unregulated supply, the current output rating must more than the driver

setting current by 60%.

Using regulated power supply, must more than the driver’s

setting current.

5.

In order to lower the cost, two or three drivers can share the same power supply.

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9.

Selection Microstep resolution and driver current

This driver uses a 6-bit DIP switch to set microstep resolution, dynamic current and standstill

current, details as below:

Microstep Resolution Selection

Microstep resolution is set by SW4, SW 5, SW 6 of the DIP switch as shown in the

following table:

Microstep

Steps/rev.(for1.8o motor)

SW4

SW5

SW6

1

200

ON

ON

ON

2

400

OFF

ON

ON

4

800

ON

OFF

ON

8

1600

OFF

OFF

ON

16

3200

ON

ON

OFF

32

6400

OFF

ON

OFF

64

12800

ON

OFF

OFF

Current Settings

Peak current (A)

SW1

SW2

SW3

0.21A

OFF

ON

ON

0.42A

ON

OFF

ON

0.63A

OFF

OFF

ON

0.84A

ON

ON

OFF

1.05A

OFF

ON

OFF

1.26A

ON

OFF

OFF

1.50A

OFF

OFF

OFF

Note: Due to motor inductance, the actual current in the coil may be smaller than the

dynamic current settings, particularly under high speed condition.