GBSM-34 Instruction Manual

Installation Schematic – Parts Identification

1. Flat Gasket

2. Nut

3. Bolt

4. Spring Gasket

5. Flat Gasket

6. Flat Gasket

7. Bracket

8. Bolt

9. Nut

10. Flat Gasket

11. Joint

12. Flat Gasket

13. Nut

14. Control Box

15. Motor

Settings & Features

1. Speed Setting

Speed is measured in Revolutions Per Minute (RPM) and is displayed on the screen when the motor is powered on.

• Press 【+】 to increase speed

• Press 【–】 to decrease speed

• Release the button once the desired speed appears on the screen

• Wait approximately 1 second for the setting to be saved

When “oE” appears on the display, the speed has been set successfully.

2. Rotation Direction Setting

To change the motor’s rotation direction:

1. Long-press 【R】 to enter the U Menu

2. Release the button when “U” appears on the screen

3. Press 【R】 repeatedly to scroll through settings U0 – U8

4. Select U2

5. Press 【+】 or 【–】 to change the value

6. 0 = Clockwise rotation

7. 1 = Counterclockwise (anticlockwise) rotation

Wait until “oE” appears on the screen to confirm the setting.

3. Needle Position Setting

(Requires synchronizer installation)

If a synchronizer is installed, you can set the needle stopping position:

• Press 【N】 once (single press)

• The screen will display the current needle position:

  • UP = Needle stops in the up position

  • DN = Needle stops in the down position

Note: This function only works when a synchronizer is connected to the controller.

4. Restore Factory Settings

To reset the controller to factory defaults:

• Long-press 【N】 for 5 seconds

• Release the button when “oE” appears on the display

The controller will then be restored to factory settings.

Common Problems and Solutions

Err1

Cause: The motor experiences extreme difficulty rotating and stops working.Solution: Restore the controller to factory settings.

Err2

Cause: Abnormal voltage or current (too high or too low).Solution:

• Check the power supply and voltage stability

• Correct any power issues

• Restore the controller to factory settings

Err4

Cause:

• Loose or improperly connected wires

• Possible hall sensor failure in the motor

Solution:

• Check and secure all wire connections

• Restore factory settings

• If the problem persists, send the unit for repair

⚠ Warning:Do NOT open the servo motor casing or expose live electrical components under any circumstances.