zx-motor3a_e

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ZX-MOTOR3A : 2-Channel 3A DC motor driver board documentation l 1

ZX-MOTOR3A 2-Channels 3A DC motor driver board l Drive DC motor 2 channels with bi-color LED indicator. l L298 driver Max. load current 3000mA (3A). l Fully 3-Control signal wires l Suitable supply voltage +9 to 24Vdc. l Opto-isolation for separating ground of control voltage (+5V) and Motor voltage (+Vm).

IC3 L298D 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

K2 MOTOR-1 K4 MOTOR-2 C1 0.1µF R5 1k

R14 1k

R7 1k

D1 1N5819

D2 1N5819

R15 1k

R13 1k

R6 1k C1 0.1µF

R12 1k

D3 1N5819

LED3 ON

D4 1N5819

IC6 HT7150A C3 100µF 6.3V

IC1 PC817

IC2 PC817

ZD1 4V7

R4 1k

R3 1k

IC4 PC817

LED1 CH-1

ZD3 4V7

R11 1k

ZD4 4V7

R10 1k R9 1k

R1 1k

R8 1k

K3 CH-2 A B G

Figure 1: ZX-MOTOR3A board schematic

A B G

IN C4 470µF 35V

K5 Vm +9 - 24Vdc

LED2 CH-2

1k

K1 CH-1

GND

IC5 PC817

ZD2 4V7

R2 1k

OUT

S1 POWER


2 l ZX-MOTOR3A : 2-Channel 3A DC motor driver board documentation

The heart of DC motor driver circuit is L298 driver IC. It requires 2 or 3 control signal from any microcontroller.

0

0

-

Free

0

1

-

Forward

1

0

-

Backward

1

1

-

Free

M

Vm CH-1

CH-2

A B G

A B G

OUT1A

Motor power source 9 to 24V 3A (min)

ON

OUTPUT

CH-2

G

CH-1

B

ZX-MOTOR3A

A

MOTOR-1

M

MOTOR-2

The figure 2 to 4 show the connection diagram of any microcontroller in 2 and 3 wires control.

OUT1B OUT2A

OUT2B

Microcontroller

0

0

0

Free

0

1

0

Forward

1

0

0

Backward

1

1

0

Brake

"0" because connect to Ground always

M

Vm CH-1

CH-2

A B G

A B G

ON

OUTPUT

CH-2

G

CH-1

B

ZX-MOTOR3A

A

MOTOR-1

M

MOTOR-2

Figure 2 : 2-wire control connection diagram of ZX-MOTOR3A board

Motor power source 9 to 24V 3A (min)

OUT1A OUT1B OUT2A OUT2B

Microcontroller

Figure 3 : 2-wire control with ground connection diagram of ZX-MOTOR3A board


0

0

Free

0

1

0

Forward

1

0

0

Backward

1

1

0

Brake

x

x

1

Free

CH-1

CH-2

A B G

A B G

ON

0

CH-2

OUTPUT

CH-1

G

ZX-MOTOR3A

B

M

Vm

MOTOR-1

M A

MOTOR-2

ZX-MOTOR3A : 2-Channel 3A DC motor driver board documentation l 3

Motor power source 9 to 24V 3A (min)

OUT1A OUT1B PWM1 OUT2A OUT2B PWM2

Microcontroller

Figure 4 : 3-wire control connection diagram of ZX-MOTOR3A board The figure 5 and 6 show the connection diagram of i-BOX3.0 Logo microcontroller

0

0

-

Free

0

1

-

Forward

1

0

-

Backward

1

1

-

Free

M

Vm CH-1

CH-2

A B G

A B G

ON

OUTPUT

CH-2

G

CH-1

B

ZX-MOTOR3A

A

MOTOR-1

M

MOTOR-2

L298 outputs connect to DC motor and provides LED status for motor supply voltage. If supply in DIRECT, LED will lights in Green. The opposite, if red LED lights, it means supply voltage is INVERT. Users can use the different color for defining direction.

Motor power source 9 to 24V 3A (min)

AB AB Low power motor output (L293D) i-BOX3.0 Microcontroller

Figure 5 : 2-wire connection diagram of ZX-MOTOR3A with i-BOX3.0


4 l ZX-MOTOR3A : 2-Channel 3A DC motor driver board documentation

0

0

0

Free

0

1

0

Forward

1

0

0

Backward

1

1

0

Brake

"0" because connect to Ground (battery's negative polarity) always

M

Vm CH-1

CH-2

A B G

A B G

ON

OUTPUT

CH-2

G

CH-1

B

ZX-MOTOR3A

A

MOTOR-2

MOTOR-1

M

Motor power source 9 to 24V 3A (min)

AB AB Low power motor output (L293D) i-BOX3.0 Microcontroller

Figure 6 : 2-wire connection diagram of ZX-MOTOR3A with i-BOX3.0 for braking the motorÂ’s shaft ZX-MOTOR3A requires DC voltage supply during +9 to +24V. The supply current will depend on the motor. The 3A power source is recommended for motor rating not over 1A and 5A or higher for motor 3A. ZX-MOTOR3A can drive motor 3A maximum.

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