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400W Spindle Wiring

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 excepted

1.0 Introduction

2.0 Wiring Diagram

Figure 1

NOTE: There may be some variations based on board layout or etc, but the essential connections remain consistent. That is, +ve and -ve from power supply to PWM Speed Controller and +ve and -ve from PWM Speed Controller to Spindle.

3.0 Spindle Specifications

  • Work voltage: 12-48VDC
  • Rotation speed: 3000-12000 RPM
  • Power: 400W
  • Torque: 500 mN.m
  • Insulation resistance: > 2Megohm
  • Dielectric strength: 400V
  • Motor Length : 186mm
  • Diameter: 52mm
  • Axis collet Length: 48mm
  • Diameter of Axis collect holder: 16mm
  • Repeat accuracy: 0.01-0.03mm

4.0 PWM Speed Controller Specifications

  • Input supply voltage: DC 6V ~ 60V
  • The maximum output power: 1000W
  • The maximum continuous output current: 10A
  • The overload and short circuit protecting current is 15A
  • PWM frequency: 16KHz
  • Duty Cycle adjustable: 0% ~ 100%
  • The operation environment temperature: -20°C ~ 40°C
  • The 20A fuse with reverse connection of power supply and control voltage over-voltage protection function
  • Can adjust the speed by an external 0V ~ 5V signal
  • Size: 64 x 59 x 28mm

5.0 Power Supply Specifications

  • Output Voltage-Channel 1: 48 V
  • Output Power: 350.4 W
  • Open Frame/Enclosed: Enclosed
  • Input Voltage: 90 VAC to 132 VAC/180 VAC to 264 VAC, 240 VDC to 370 VDC
  • Output Current-Channel 1: 7.3 A
  • Mounting Style: Chassis
  • Length: 215 mm
  • Width: 115 mm
  • Height: 30 mm
  • Input Frequency: 47 Hz to 63 Hz
  • Unit Weight: 760 g
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