I use velleman K8004 PWM controller card to drive DC motor.
DC TO PULSE WIDTH MODULATOR
The voltage from my PSU to the K8004 PWM kit is 12V
The motor is rated for 12V
The Amps rating on motor is unknown but I assume no more than 2-2.5Amps
When I adjust the resistor on K8004 PWM kit (configuration C internal reference voltage 1K POT) the voltage on motor changes.
At start there is 0V then 8.4V at Max speed. This is the same for forward and back spin direction.
To change the spin direction I use 3 position switch on K8004 PWM kit that just changes wire polarity connecting the kit to PSU.
The voltage on the 1K pot changes too, at start there is 0V - at Max speed 4.8V
Manual: http://www.velleman.be/downloads/0/illustrated/illustrated_assembly_manual_k8004_rev3.pdf
I have Canon Printer Carriage Motor QK1-1500
TN425813 12V DC.
I control the motor via 1K pot. I use internal reference voltage to control the motor speed. But as the load changes so does the motor speed.
How can I adjust the speed like I do now via POT but be able to lock it?
Please see manual page 8 for connection options.
The K8004 is just a motor driver PWM circuit. But I can adjust speed by connecting it like diagram A (Use separate control voltage). I mean it can be driven by another circuit board that adjusts voltage according to the motor speed.
Back emf might speed control or IR sensor speed control?
I would like to have another circuit that I can plug-in to the PWM withoud modyfying it because my simulator doesn't have the parts to simulate this and I don;t want to damage the PWM that is working fine
Thank you.
DC TO PULSE WIDTH MODULATOR
The voltage from my PSU to the K8004 PWM kit is 12V
The motor is rated for 12V
The Amps rating on motor is unknown but I assume no more than 2-2.5Amps
When I adjust the resistor on K8004 PWM kit (configuration C internal reference voltage 1K POT) the voltage on motor changes.
At start there is 0V then 8.4V at Max speed. This is the same for forward and back spin direction.
To change the spin direction I use 3 position switch on K8004 PWM kit that just changes wire polarity connecting the kit to PSU.
The voltage on the 1K pot changes too, at start there is 0V - at Max speed 4.8V
Manual: http://www.velleman.be/downloads/0/illustrated/illustrated_assembly_manual_k8004_rev3.pdf
I have Canon Printer Carriage Motor QK1-1500
TN425813 12V DC.
I control the motor via 1K pot. I use internal reference voltage to control the motor speed. But as the load changes so does the motor speed.
How can I adjust the speed like I do now via POT but be able to lock it?
Please see manual page 8 for connection options.
The K8004 is just a motor driver PWM circuit. But I can adjust speed by connecting it like diagram A (Use separate control voltage). I mean it can be driven by another circuit board that adjusts voltage according to the motor speed.
Back emf might speed control or IR sensor speed control?
I would like to have another circuit that I can plug-in to the PWM withoud modyfying it because my simulator doesn't have the parts to simulate this and I don;t want to damage the PWM that is working fine
Thank you.
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