1. Product Overview
This RATTMMOTOR Electronic Leadscrew Controller Kit is designed to upgrade compatible lathes, such as the CD-210V, WM210V, and MX-210V models. It provides an advanced electronic leadscrew system for precise turning and threading operations, enhancing the functionality and accuracy of your lathe.
2. Safety Information
Always prioritize safety when working with machinery. Ensure all power is disconnected before installation or maintenance. Wear appropriate personal protective equipment (PPE), including safety glasses. Read and understand all instructions before operating the kit. Improper installation or use can lead to injury or damage to equipment.
3. Package Contents
The kit typically includes the following components:
- E-Leadscrew Controller (RC-210V)
- Nema 23 Stepper Motor
- HB556AC Microstep Driver
- Incremental Rotary Encoder (BKS3806B-1000-24C)
- Power Supply Unit (DC36V-5V)
- Synchronous Wheels (various inner diameters: 27mm, 45mm, 50mm)
- Timing Belt
- Mounting Brackets and Hardware
- Wiring Cables
Note: The synchronous wheel has three different inner diameters (27mm/45mm/50mm). Please purchase according to the actual measured dimensions of your lathe's spindle box. If you accidentally purchase the wrong size, a separate synchronous wheel can be acquired for replacement.
4. Specifications
4.1 E-Leadscrew Controller (RC-210V)
- Dimensions: 124mm (4.88in) x 80mm (3.14in) x 32mm (1.25in)
4.2 Nema 23 Stepper Motor
- Phase: 2 Phase
- Step angle: 1.8°±5%
- Motor length: 112mm
- Voltage: 4.2V
- Rated current: 3A/Phase
- Resistance: 1.6Ω ±10%/ Phase
- Inductance: 6.8mH ±20%/ Phase
- Holding torque: 280N.cm /Min
- Detent torque: 3N.cm Max
- Rotor inertia: 800g.cm
- Insulation class: 2B
- Leads cable: 4 wires (AWG22 UL1007)
- Weight: 1550g
- Dimensions: 56mm (Max) x 56mm (Max) x 112mm (Max)
4.3 Incremental Rotary Encoder (BKS3806B-1000-24C)
- Type: Encoder
- Model: BKS3806B-1000-24C
- Pulses: 1000 impulses/tour
- Structural tension: 5V-24V DC
- Signal form: A·B dual-mode
- Water depth: 2M
- Dimensions: Ø38mm body, Ø6mm shaft, 33mm body length
4.4 HB556AC Microstep Driver
- Dimensions: 118mm (4.65in) x 87mm (3.45in) x 35mm (1.38in)
4.5 Synchronous Wheels & Belt
- Outer diameter: 70mm
- Thickness: 15mm
- Inner diameters available: 27mm, 45mm, 50mm
5. Setup & Installation
Careful installation is crucial for the proper functioning of the electronic leadscrew system. Refer to the wiring diagram and interface definitions below.
5.1 Interface Definition
| Interface | Pin | Description |
|---|---|---|
| Power Supply | V+ | Positive pole of power supply (8-36V) |
| Gnd | Negative pole of power supply | |
| Stepper Motor | P+ | Pulse + (+5V) |
| P- | Pulse - | |
| D+ | Direction + (+5V) | |
| D- | Direction - | |
| Encoder | 5V | Positive pole of encoder power supply |
| Gnd | Negative pole of encoder power supply | |
| A | Encoder signal A+ | |
| B | Encoder signal B | |
| Limit Switch | LM1 | Limit switch input 1 |
| LM2 | Limit switch input 2 | |
| OV | Common terminal for LM1 and LM2 switch signals | |
| Button Inputs | K1-K5 | External button inputs |
| 5V | 5V for button LED power supply | |
| Gnd | Ground for button LED |
5.2 Wiring Diagram
The following diagram illustrates the complete wiring connections between the controller, stepper motor, driver, encoder, and power supply. Ensure all connections are secure and correctly polarized.
5.3 Driver DIP Switch Settings
Configure the HB556AC Microstep Driver using the DIP switches for current and subdivision settings as per the table below. Refer to the diagram on the driver for switch positions.
| Current (A) | SW1 | SW2 | SW3 |
|---|---|---|---|
| 1.0A | ON | ON | ON |
| 1.4A | OFF | ON | ON |
| 1.8A | ON | OFF | ON |
| 2.2A | OFF | OFF | ON |
| 2.7A | ON | ON | OFF |
| 3.1A | OFF | ON | OFF |
| 3.6A | ON | OFF | OFF |
| 4.0A | OFF | OFF | OFF |
| Subdivision | SW5 | SW6 | SW7 | SW8 |
|---|---|---|---|---|
| 800 | ON | ON | ON | ON |
| 1600 | OFF | ON | ON | ON |
| 3200 | ON | OFF | ON | ON |
| 6400 | OFF | OFF | ON | ON |
| 12800 | ON | ON | OFF | ON |
| 25600 | OFF | ON | OFF | ON |
| 5000 | ON | OFF | OFF | ON |
| 10000 | OFF | OFF | OFF | ON |
| 20000 | ON | ON | ON | OFF |
| 40000 | OFF | ON | ON | OFF |
6. Operating Instructions
6.1 Controller Buttons
| Button | Short Press Action | Long Press Action |
|---|---|---|
| KEY1 (Function/Exit) | Mode switching (in mode selection state); Exit current working mode (in auto thread/shuttle mode); Switch setting items (in auto thread/round trip setting state) | System Configuration (in mode selection state); Save setting parameters and enter working state (in auto thread/round trip setting state) |
| KEY2 (Left Move/Reduce) | Left shift screw (manual mode); Single reduction (setting state); Adjust feed length (knife walking/manual distance/auto round-trip) | Fast forward/rewind (manual mode); Continuous reduction (setting state); Automatically carry and adjust every 3 seconds (feed length adjustment) |
| KEY3 (Right Move/Add) | Right shift screw (manual mode); Single addition (setting state); Adjust feed length (knife walking/manual distance/auto round-trip) | Quick return/quick add (manual mode); Continuous addition (setting state); Automatically carry and adjust every 3 seconds (feed length adjustment) |
| KEY4 (Settings/Selection) | Enter settings and switch parameters (mode selection state); Exit current working mode (in auto thread/shuttle mode); Switch setting parameters (in auto thread/round trip setting state) | Save setting parameters and enter working state (in auto thread/round trip setting state) |
| KEY5 (Cancel/Start/Stop) | Cancel and exit parameter setting (setting state); Run and pause control (working mode) | Reset current position (working mode); Clear moved distance (manual distance movement) |
6.2 Knife Walking Function
This function synchronizes the spindle speed with the set feed length for turning operations. The direction can be switched at any time during operation.
Video 1: Demonstration of Knife Walking Function and Speed Adjustment
- Use the Left Move/Reduce (KEY2) and Right Move/Add (KEY3) buttons to adjust the feed length.
- The display shows the feed length (e.g., X.XXmm) and the corresponding spindle speed (±XXX.XX).
6.3 Manual Speed Movement Function
Allows manual movement based on a set speed. Use the Left Move or Right Move buttons to control movement, and switch directions when the movement is stopped.
- Adjust the movement speed using the Left Move/Reduce (KEY2) and Right Move/Add (KEY3) buttons.
6.4 Manual Distance Movement Function
The system will automatically stop after moving a set distance, pause, and then restart to continue moving the remaining distance.
- Adjust the movement distance parameter using the Left Move/Reduce (KEY2) and Right Move/Add (KEY3) buttons.
- A short press adjusts the parameter in one go. A long press continuously adjusts the parameter and automatically carries over every 3 seconds.
- Long press Cancel/Start/Stop (KEY5) to clear the distance already moved.
6.5 Automatic Threading Function
Performs automatic threading based on configured thread type, length, and size.
- Enter this mode by pressing the Sub Function button.
- Parameter List:
- Thread Types: Metric, Imperial, Non-standard precision threads.
- Thread Size: Set pitch size for metric/non-standard threads, or teeth per inch for imperial threads.
- Thread Length: Set the desired thread length (e.g., XXX.XXmm). If 0, it indicates the thread length has not been set.
- Start Turning Mode: Manual button operation, immediate automatic operation, or delayed automatic operation.
- Start Rollback Mode: Manual button operation, immediate automatic operation, or delayed automatic operation.
- Automatic Running Delay Time: 1-30 seconds.
- Long press Function (KEY1) or Sub Function (KEY4) to save parameters and enter the working state.
- Short press Reset/Cancel (KEY5) to cancel parameter settings and return to the mode selection interface.
6.6 Automatic Round-trip Function
Synchronizes spindle movement according to the set turning length and feed length, and automatically retracts after completing the set turning length.
- In the set state, short press the Sub Function button to switch between setting parameters.
- Long press the Save/Enter button to save parameters and automatically enter the working state.
- Short press the Reset/Cancel button to cancel parameter settings and return to the mode selection interface.
- In a paused or running state, short press Start/Stop (KEY5) to activate or pause.
- Adjust feed length using Left Move/Reduce (KEY2) or Right Move/Add (KEY3) buttons.
- Short press Function/Exit (KEY1) to stop the current operation and exit to mode selection.
7. System Configuration
Access system settings to configure language and buzzer options.
- In the mode selection state, long press the Function/Exit (KEY1) button to enter the system settings interface.
- Parameters:
- Set language: Chinese, English.
- Set buzzer: On and Off.
- Short press the Function (KEY1) or Sub Function (KEY4) button to switch between setting parameters.
- Long press the Function/Exit (KEY1) or Save/Enter (KEY4) button to save parameters and return to the mode selection interface.
- Short press the Reset/Cancel (KEY5) button to cancel parameter settings and return to the mode selection interface.
7.1 Encoder and Stepper Motor Parameters
- Stepper motor configuration requirements: The stepper motor should have 1600 pulses per revolution and move 2mm per revolution.
- Encoder requirement: 1000 pulses per revolution, with a gear ratio of 2:1 between the spindle and encoder (spindle rotates 1 revolution, encoder rotates 2 revolutions).
8. Troubleshooting
- System not working or partial components non-functional: Verify all wiring connections according to the diagram (Figure 8). Ensure the power supply is providing the correct voltage. Check individual components (stepper motor, driver, encoder) for proper functionality.
- Stepper motor speed too high: If the synchronous spindle speed of the stepper motor is excessively high, the spindle speed needs to be reduced. Adjust the settings accordingly.
- Incorrect synchronous wheel size: If the installed synchronous wheel does not match your lathe's spindle box, a replacement wheel with the correct inner diameter (27mm, 45mm, or 50mm) can be purchased separately.
9. User Tips
- Compatibility: This kit is designed for lathes such as the CD-210V, WM210V, and MX-210V models.
- Synchronous Wheel Selection: Always measure the spindle box of your lathe to ensure you select the correct inner diameter for the synchronous wheel (27mm, 45mm, or 50mm).
- Component Replacement: If an incorrect synchronous wheel size is purchased, it can be replaced by buying a separate wheel of the correct dimension.
- PDF Manual: A detailed user manual in PDF format is available for further reference. You can access it at: Electronic Leadscrew Controller Kit User Manual (PDF).
10. Warranty & Support
For warranty information and technical support, please contact the seller or manufacturer directly. Keep your purchase records for any claims.