dc spindle speed controller

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DC Spindle Speed Controller Overview This is a speed control circuit for our DC spindles. You can control the spindle through the full range of speed using a knob or from a PWM source. Power Source This can be used with DC voltages up to 52V or AC voltages up to 110VAC. If you use a voltage higher than the spindle is rated for (typically 48V) you must limit the range on the pot or PWM proportionally. Use of AC voltage exposes lethal voltages and could over power your circuit or spindle if you turn up the speed too far. This should only be done by qualified electricians. It is highly recommended to use a 48VDC power supply. Setup Power Supply: The circuit is compatible with AC or DC voltages, so it does not matter which side is positive or negative, just connector one polarity to each of the power supply terminals Motor: Connector the motor to Motor + and Motor . If for some reason your motors spins the wrong way when powered, swap these wires. Potentiometer Knob Control: Hook up the cable to the connector as shown. The jumper should be on the left (labeled IP) pins as shown in the image. PWM Control: If you want to use PWM control from a program like Mach3, use the terminals provided and move the jumper to the right (labeled CP) pins. The PWM voltage should be 5V. Inventables 5/14/2014

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Page 1: DC Spindle Speed Controller

DC Spindle Speed Controller  Overview  This is a speed control circuit for our DC spindles.  You can control the spindle through the full range of speed using a knob or from a PWM source.  Power Source  This can be used with DC voltages up to 52V or AC voltages up to 110VAC.  If you use a voltage higher than the spindle is rated for (typically 48V) you must limit the range on the pot or PWM proportionally.  Use of AC voltage exposes lethal voltages and could over power your circuit or spindle if you turn up the speed too far.  This should only be done by qualified electricians.  It is highly recommended to use a 48VDC power supply.  Setup  

  

● Power Supply: The circuit is compatible with AC or DC voltages, so it does not matter which side is positive or negative, just connector one polarity to each of the power supply terminals 

● Motor: Connector the motor to Motor + and Motor ­.  If for some reason your motors spins the wrong way when powered, swap these wires. 

● Potentiometer Knob Control: Hook up the cable to the connector as shown.  The jumper should be on the left (labeled IP) pins as shown in the image.   

● PWM Control: If you want to use PWM control from a program like Mach3, use the terminals provided and move the jumper to the right (labeled CP) pins.  The PWM voltage should be 5V. 

Inventables ­ 5/14/2014