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TB6600 Stepper Motor Driver

Safety Statement
The author of this document is not liable or responsible for any accidents, injuries, equipment damage, property damage, loss of money or loss of time resulting from improper use of electrical or mechanical or software products.
Assembling electrical and mechanical CNC machine components like power supplies, motors, drivers or other electrical and mechanical components involves dealing with high voltage AC (alternating current) or DC (direct current) and other hazardous items which can be extremely dangerous and needs high attention to detail, experience, knowledge of software, electricity, electro-mechanics and mechanics.
BEFORE MAKING ANY CONNECTIONS OR DISCONNECTIONS POWER MUST BE REMOVED FROM THE DEVICE AND THE CONTROLLER. FAILURE TO DO SO WILL VOID ANY AND ALL WARRANTIES.
Before starting please read through all the instructions.Note: : Any Mains power connections must be installed by a Licensed electrician or suitability qualified person.
Errors and omissions excepted1.0 Introduction
The TB6600 Stepper Motor Driver is a two-phase stepper motor driver. It supports speed and direction control. You can set its micro step and output current with 6 DIP switches. There are 7 kinds of micro steps (1, 2 / A, 2 / B, 4, 8, 16) and 8 kinds of current control (0.5A, 1A, 1.5A, 2A, 2.5A, 2.8A, 3.0A, 3.5A). All signal terminals adopt high-speed optocoupler isolation, enhancing its anti-high-frequency interference ability.
1.1 Features
- Supports 8 levels of current control
- Supports 7 levels of micro step adjustment
- Interfaces adopt high-speed optocoupler isolation
- Automatic semi-flow to reduce heat
- Large area heat sink
- Anti-high-frequency interference ability
- Input anti-reverse protection
- Overheat, over current and short circuit protection
1.2 Electrical Specifications
Input Current: | 0-5.0A |
Output Current: | 0.5-4.0A |
Power (MAX): | 160W |
Micro Step: | 1, 2/A, 2/B, 4, 8, 16 |
Temperature: | -10~45℃ |
Humidity: | No Condensation |
Weight: | 0.2 kg |
Dimensions: | 96x56x33 mm |
1.3 Application
Suitable for a variety of small and medium sized automation equipment and instruments, such as engraving machines, marking machines, cutting machines, laser typesetting, plotters, CNC machine tools, and handling devices.
2.0 Input & Output:
2.1 Signal Input
The TB6600 driver accepts step and direction inputs, typically in the form of digital pulses, where each pulse on the step input causes the motor to move one step in the direction specified by the direction input.
PUL+ | Pulse + |
PUL- | Pulse – |
DIR+ | Direction + |
DIR- | Direction – |
EN+ | Off-line Control Enable + |
EN- | Off-line Control Enable – |
2.2 Motor Machine Winding
The TB6600 is designed to drive bipolar stepper motors, which typically have two windings or phases. It’s critical to correctly identify and connect the motor windings to the TB6600’s output terminals. Incorrect wiring can result in erratic motor behaviour or failure to rotate.
A+ | Stepper motor A+ |
A- | Stepper motor A- |
B+ | Stepper motor B+ |
B- | Stepper motor B- |
2.3 Power Supply
We recommend using the Mean Well Power Supply to power up the TB6600 Stepper Motor Driver
VCC | VCC (DC9-42V) |
GND | GND |
2.4 Wiring Instructions
There are three input signals
Step pulse signal | PUL +, PUL-; |
Direction signal | DIR +, DIR-; |
Enable signal | EN +, EN-. |
The driver supports common-cathode and common-anode circuit, you can select one according to your requirements.
2.4.1 Common-Anode Connection
Connect PUL +, DIR + and EN + to the power supply of the control system. If the power supply is + 5V, it can be directly connected. If the power supply exceeds +5V, a current limiting resistor R must be added externally to ensure that the controller pin can output 8 – 15mA current to drive the internal optocoupler.
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Pulse signal connects to PUL-; direction signal connects to Dir- ; Enable signal connects to EN-. As shown below:
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2.4.2 Common-Cathode Connection
Connect PUL -, DIR – and EN – to the ground terminal of the control system. Pulse signal connects to PUL+; direction signal connects to Dir+ ; Enable signal connects to EN+. As shown below:

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Note: When “EN” is in the valid state, the motor is in a free state (Off-line mode). In this mode, you can adjust the motor shaft position manually. When “EN” is in the invalid state, the motor will be in an automatic control mode.
2.5 Microcontroller Connection
Below is a common-anode connection (“EN” not connected).
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Note: Always disconnect the power when making connections and ensure the power polar is correct. Or it will damage the controller.
2.6 Stepper Motor Wiring
Two-phase 4-wire, 6-wire, 8-wire motor wiring, as shown below:
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3.0 DIP Switch Settings
3.1 Micro-Step Settings
The follow table shows the TB6600 Driver Micro step settings. The first 3 DIP switches are used to set the micro steps.
Step Angle = Motor Step Angle / Micro Step
E.g. A stepper motor with a 1.8° step angle, the final step angle under “Micro step 4” will be 1.8°/4=0.45°
Micro Step | Pulse/Rev | S1 | S2 | S3 |
NC | NC | ON | ON | ON |
1 | 200 | ON | ON | OFF |
2/A | 400 | ON | OFF | ON |
2/B | 400 | ON | OFF | OFF |
4 | 800 | OFF | ON | ON |
8 | 1600 | OFF | ON | OFF |
16 | 3200 | OFF | OFF | ON |
NC | NC | OFF | OFF | OFF |
3.2 Current Control Setting
Current (A) | S4 | S5 | S6 |
0.5 | ON | ON | ON |
1 | OFF | ON | ON |
1.5 | ON | OFF | ON |
2 | OFF | OFF | ON |
2.5 | ON | ON | OFF |
3 | OFF | ON | OFF |
3.5 | ON | OFF | OFF |
4 | OFF | OFF | OFF |
4.0 Enable/Off-Line Function
If you turn on the Enable / Off-line function, the motor will enter a free state, you will be able to turn the motor shaft freely and any pulse signal will be ignored. If you turn it off, the driver will be in automatic control mode.
Note: Generally, EN terminal is not connected.
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Support
For any questions or concerns, please contact us at [email protected]
Australian customers: For more project ideas and solutions, please visit makerstore.com.au
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Credits
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