SMC02 Stepper Motor Driver & Pulse Generator Controller Board - With Manual Direction & Speed Control

ZK-SMC02 Stepper Motor Controller + Driver (Integrated)

Stepper Motor Driver & Pulse Generator Controller Board with Manual Direction & Speed Control

Product Overview

The ZK-SMC02 is an all-in-one stepper motor controller and driver designed for single-axis stepper motor control. It integrates motion control logic, pulse generation, and a high-current stepper driver in one compact module.

The controller supports manual operation, automatic operation, parameter setting, and TTL serial (MODBUS-RTU) control, and can operate independently without any external PLC or MCU. All motion parameters (distance, speed, delay, cycles, acceleration) are saved in non-volatile memory and retained after power loss.

Key Features 

• Integrated stepper motor controller + driver (no external driver required)
• Single-axis motion control
• Forward / Reverse rotation control
• Manual control via front panel buttons and rotary encoder
• Automatic cycle operation with programmable distance, delay, and loops
• Acceleration & deceleration control
• Pulse-based positioning (high precision)
• Non-volatile memory (parameters saved after power-off)
• TTL serial communication (MODBUS-RTU protocol)
• Reverse polarity protection on power input
• Designed for general industrial control applications

Electrical & System Specifications

Motion Control Parameters

Built-In Operation Modes (F-01)

The ZK-SMC02 includes 9 predefined motion flow modes, selectable via menu F-01:

1. P01 – Motor follows rotary encoder (manual speed control)
2. P02 – Rotate while button is pressed, stop on release
3. P03 – Press once to rotate continuously, STOP to halt
4. P04 – Fixed distance → delay → repeat (forward or reverse)
5. P05 – Fixed distance cycles → return to zero
6. P06 – Forward & reverse alternating cycles
7. P07 – Rotate → release → delay → return to zero
8. P08 – Time-based forward/reverse with delay and cycles
9. P09 – Auto forward & reverse cycles on power-up

User Interface

Front Panel Controls

• CW button – Forward rotation
• CCW button – Reverse rotation
• RUN/STOP button – Start / pause / exit
• Rotary encoder – Speed & parameter adjustment

Display

• LCD shows speed, delay time, cycle count, and mode status

Serial Communication (TTL)

• Interface: TTL UART
• Protocol: MODBUS-RTU
• Supported Function Codes: 0x03, 0x06, 0x10
• Address Range: 1 – 255
• Supports remote control, parameter read/write, and run commands

Mechanical Specifications

Typical Applications

• Automation fixtures
• Conveyor & indexing systems
• Linear motion platforms
• Rotating tables
• DIY & educational motion control
• General industrial stepper motor control

How to Set & Program the ZK-SMC02 Stepper Motor Controller

This controller is programmed entirely from the front panel using:

• Rotary encoder (knob)
• CW / CCW buttons
• RUN/STOP button

No computer is required.

1️⃣ Power On

• Connect DC 10–30V power supply
• Connect stepper motor to A+, A-, B+, B-
• The controller boots into the RUN (working) interface

2️⃣ Understanding the Two Interfaces

🔹 RUN Interface (Normal Operation)

Used during work:

• Shows speed, delay, or cycle count
• Knob adjusts speed
• CW / CCW buttons control direction
• RUN/STOP starts or stops motion

🔹 MENU Interface (Programming Mode)

Used to set all parameters:

• Accessed by long-pressing the rotary encoder

3️⃣ Enter Programming (MENU) Mode

1. Make sure controller is stopped
2. Long-press the rotary encoder
3. Display changes to:

   F-01
   

You are now in menu setting mode

4️⃣ Select a Program (Motion Mode – F-01)

Step:

1. When F-01 is shown
2. Short-press the encoder
3. Value starts flashing (P01 – P09)
4. Rotate encoder to select mode
5. Short-press encoder to confirm

Available Programs (F-01)

5️⃣ Set Motion Parameters (F-02 to F-13)

Navigation

• Rotate encoder → select F-02 … F-13
• Short-press → edit value
• Rotate → change value
• Short-press → move to next digit
• RUN/STOP → exit parameter edit

🔧 Main Programming Parameters

F-02 – Forward Pulse Count

• Range: 1 – 9,999,999
• Sets forward movement distance

F-03 – Forward Speed

• Range: 0.1 – 999 RPM

F-04 – Reverse Pulse Count

• Range: 1 – 9,999,999

F-05 – Reverse Speed

• Range: 0.1 – 999 RPM

F-06 – Cycle Count

• 0 = infinite loop
• 1–9999 = fixed cycles

F-07 – Forward Delay Time

• 0.0 – 999.9 seconds

F-08 – Reverse Delay Time

• 0.0 – 999.9 seconds

F-09 – Pulses Per Revolution

Used to match motor + microstepping

Example:

• 1.8° motor
• 8 microsteps
  → 1600 pulses / rev
  → set F-09 = 160

F-10 – Display Mode

• 00 → speed + delay
• 01 → speed + cycle count

F-11 – Stop Mode

• 0 → smooth deceleration stop
• 1 → immediate stop (emergency)

F-12 – Acceleration Level

• 1 (slow) → 100 (fast)

F-13 – Serial Address

• 1 – 255 (used for TTL MODBUS)

6️⃣ Save Settings

1. After finishing all parameters
2. Long-press the rotary encoder
3. Controller:
   • Saves settings
   • Returns to RUN interface

⚠️ If you power off before long-press, settings will NOT be saved.

7️⃣ Start the Program

• Press CW → forward operation
• Press CCW → reverse operation
• Press RUN/STOP → pause / stop

Controller executes the selected F-01 program using your parameters.

8️⃣ Example: Simple Auto Forward & Reverse Loop

Goal:

• Forward 1600 pulses
• Delay 1 sec
• Reverse 1600 pulses
• Repeat forever

Settings:

F-01 = P06
F-02 = 1600
F-03 = 100 RPM
F-04 = 1600
F-05 = 100 RPM
F-06 = 0
F-07 = 1.0
F-08 = 1.0

Save → RUN → Press CW

✅ Programming Summary (Quick)

1. Power ON
2. Long-press knob → MENU
3. Set F-01 program
4. Set distance, speed, delay, cycles
5. Long-press knob → SAVE
6. RUN