1. Product Overview
The UX-52 Speed Motor Controller is a versatile device designed for precise control of AC motor speeds. It incorporates MCU digital control technology, offering rich functions and excellent performance. Key features include a digital display for easy setting modification, soft-start and slow acceleration/deceleration capabilities, and robust protection mechanisms.
Figure 1: Front view of the UX-52 motor speed controller with connected wires.
Key Features:
- MCU Digital Control Technology: Provides rich functions and excellent performance.
- Digital Display: Allows for quick and convenient modification of settings. The display magnification and target value can be adjusted.
- Soft-Start Function: Enables slow acceleration and slow deceleration for smooth motor operation.
- Flexible Operation: Can be operated via the control panel or controlled by external switches.
- Speed Regulating Potentiometer: The panel knob automatically matches the maximum speed, ensuring convenient and safe adjustment.
- Protection Functions: Includes over voltage protection and blocking-protection (locked rotor overload protection).
- Cycle Operation: Supports an added cycle operation function.
Figure 2: Key features of the UX-52 Speed Controller.
2. Specifications
| Attribute | Value |
|---|---|
| Model Number | UX-52 |
| Motor Type | AC Motor |
| Input Voltage | AC110-240V |
| Frequency | 50/60Hz |
| Max Current | 3A |
| Max Power | 400W |
| Dimensions (H x W x D) | 90mm (3.5in) x 60mm (2.4in) x 100mm (3.9in) |
| Origin | Mainland China |
| Certification | None |
Figure 3: Dimensions of the UX-52 Speed Motor Controller.
3. Setup and Wiring
Before installation, ensure the power supply is disconnected. Proper wiring is crucial for safe and effective operation. Refer to the wiring diagram below.
Figure 4: Wiring Diagram for Panel-Based Speed Controller/Governor.
Wiring Instructions:
- Power Supply (N, L): Connect the AC110-240V power supply to the N and L terminals. Ensure the supply voltage matches the governor's specifications.
- Circuit Breaker (QF): An external circuit breaker (QF) is recommended for protection against short circuits. Refer to the 'QF Circuit Breaker Current Specification' table for appropriate current ratings based on motor power.
- Motor Connections (U1, U2, Z1, Z2): Connect your AC motor's main and secondary windings to the corresponding terminals. Ensure the motor's power is consistent with the governor's rated power (up to 400W).
- Velocity Feedback (S1, S2): Connect any velocity feedback sensors to S1 and S2 if applicable.
- External Switches (K1, K2): For external control of motor operation, connect K1 and K2 switches. If using external switches, ensure they are installed and configure parameter F-03 accordingly (select '2' or '3' for external switch control). If not using external switches, they do not need to be installed, and F-03 should be set to '1' for panel button control.
- Direction Control (REV, FWD): These terminals are for reverse and forward rotation control.
QF Circuit Breaker Current Specification:
Use the following table to select the appropriate circuit breaker current based on your motor's power at 220V supply.
| Supply Voltage | Motor Power | QF Current |
|---|---|---|
| 220V | 6-20W | 0.5A |
| 220V | 25W | 1A |
| 220V | 50W | 2A |
| 220V | 100W | 4A |
| 220V | 200W | 6A |
| 220V | 400W | 8A |
4. Operating Instructions
The UX-52 controller features a digital display and several buttons for precise control. The speed regulating potentiometer allows for quick and intuitive speed adjustments.
Figure 5: Control panel layout and button functions.
Control Panel Functions:
- MODE: Enters/exits parameter setting mode. Long press to enter.
- ▲ (Up Arrow): Increases parameter values or navigates menu.
- ▼ (Down Arrow): Decreases parameter values or navigates menu.
- ENTER: Confirms selection or displays current parameter value.
- REV (Reverse): Initiates reverse rotation of the motor.
- STOP: Stops the motor.
- FWD (Forward): Initiates forward rotation of the motor.
- Speed Regulating Potentiometer: Adjusts the motor speed from 0 to 10 (relative scale).
Parameter Settings:
To access and modify parameters, long press the MODE key. Use the ▲ and ▼ buttons to select a parameter code (e.g., F-01, F-02). Press ENTER to view its current setting. Use ▲ and ▼ again to change the value, then press ENTER to save. Press MODE to exit the parameter setting mode.
Note: Parameters related to motor operation (e.g., F-04, F-05) can only be modified when the motor is in a stopped state.
| Parameter Code | Function | Setting Range | Default |
|---|---|---|---|
| F-01 | Show contents | 1. Motor speed setting | 1.0 |
| F-02 | Magnification setting | 1.0-999.9 | 1.0 |
| F-03 | Operation control mode | 1. Operation panel button control, no external switch 2. External switch control, stop is valid 3. External switch control, stop is not valid |
1 |
| F-04 | Operation mode | 1. Forward and reverse rotations are allowed 2. Forward rotation is allowed, reverse rotation is prohibited 3. Reverse rotation is allowed, forward rotation is prohibited |
1 |
| F-05 | Reverse rotation direction | 1. Reversion | 1 |
| F-06 | Adjustment mode of maximum speed | 1. Panel ▲▼ buttons | 2 |
| F-07 | Maximum speed | 500-3000 | 1400 |
| F-08 | Minimum speed | 90-1000 | 120 |
| F-09 | Acceleration time of forward rotation | 0.1-10.0s | 0.3 |
| F-10 | Stop mode of forward rotation | 1. Free deceleration stop 2. Slow deceleration stop |
1 |
| F-11 | Deceleration time of forward rotation | 0.1-10.0s | 0.1 |
| F-12 | Acceleration time of reverse rotation | 0.1-10.0s | 0.3 |
| F-13 | Reverse time mode | 1. Free deceleration stop 2. Slow deceleration stop |
1 |
| F-14 | Slow deceleration time of reverse rotation | 0.1-10.0s | 0.1 |
| F-15 | Alarm mode | 1. Valid alarm 2. Invalid alarm |
1 |
| F-16 | Cycle rotation mode | 1. Invalid 2. Valid |
1 |
| F-17 | Number of turns | 1-9999s | 2 |
| F-18 | Forward rotation time | 0-9999s | 5 |
| F-19 | Reverse rotation time | 0-9999s | 5 |
| F-20 | Operation interval | 1-9999 | 5 |
| F-21 | Forward velocity | 90-3000 | 1000 |
| F-22 | Reverse velocity | 90-3000 | 1000 |
| F-23 | Factory reset | 1. Do not restore factory settings 2. Restore factory settings |
1 |
5. Maintenance
The UX-52 Speed Motor Controller is designed for reliable operation with minimal maintenance. To ensure longevity and optimal performance:
- Keep Clean: Regularly clean the exterior of the controller to prevent dust and debris accumulation, especially around ventilation slots.
- Environmental Conditions: Operate the controller within its specified environmental conditions (temperature, humidity) to prevent damage.
- Wiring Integrity: Periodically check all wiring connections for tightness and signs of wear or corrosion. Loose connections can lead to intermittent operation or damage.
- Ventilation: Ensure adequate airflow around the unit to prevent overheating. Do not block ventilation openings.
6. Troubleshooting
If you encounter issues with your UX-52 Speed Motor Controller, refer to the following common troubleshooting steps:
- Motor Not Running:
- Verify that the power supply is connected and active.
- Check all motor and control wiring for correct connections and continuity.
- Ensure the motor power is consistent with the governor's rated power.
- If using external switches (K1, K2), confirm they are correctly installed and parameter F-03 is set appropriately.
- Abnormal Motor Behavior / Alarm:
- If an alarm is triggered (check F-15 parameter setting), disconnect and reconnect the power supply to disarm the alarm.
- Inspect for any abnormal counteracting force between the governor and the motor, which might indicate a mechanical issue or incorrect motor pairing.
- The controller has locked rotor overload protection. If the motor is stalled or overloaded, the controller may stop operation to protect the motor. Reduce load or clear obstruction.
- Unable to Change Settings:
- Ensure the motor is in a stopped state when attempting to modify operational parameters (e.g., F-04, F-05). Some settings can only be changed when the motor is not running.
- Inaccurate Speed Control:
- Check parameter F-02 (Magnification setting) and adjust according to your display needs and desired target value.
- Ensure the speed regulating potentiometer is functioning correctly.
7. User Tips
No specific user tips were available from reviews or Q&A for this product. However, general best practices for motor controllers include:
- Always double-check wiring before applying power to prevent damage to the controller or motor.
- Familiarize yourself with the parameter settings table to fully utilize the controller's features, especially for soft-start and cycle operations.
- Consider the operating environment; avoid excessive dust, moisture, or extreme temperatures.
8. Warranty and Support
Please refer to your purchase documentation for specific warranty terms and conditions. For technical support or further assistance, contact your seller or the product manufacturer with your model number (UX-52) and a detailed description of the issue.





