I have salvaged quite a few of these motors from old DLT tape drives.
Part Number: PN12-60119-01
LBT79-002 DC12V 2.5A
I have found a little bit of info on the motors and I have had one spinning using the following pin out.
Pin 1 = Motor drive enable 0=Off 1=On
Pin 2 = Gnd
Pin 3 = Direction control 0=CCW, 1=CW
Pin 4 = Output from sensor A 2.5V centre
Pin 5 = +12V In
Pin 6 = Gnd (internally connected to pin 2)
Pin 7 = Output from sensor B 2.5V centre
Pin 8 = Output from sendor C 2.5V centre
Pin 9 = +5V In
It has been mentioned that it might be possible to use PWM to control the speed of this motor, which is my goal.
However I'm not sure exactly what type of PWM to feed PIN1. All of the information I have found on the net shows a driver and some sort of PID with the Hall sensors feeding the PID and the PID feeding the driver.
This motor already has a UPC1446C chip which is a "PREDRIVER FOR 3-PHASES BRUSHLESS DC MOTOR". It looks like the upc1246C chip feeds a MP6403 (Toshiba POWER MOS FET MODULE) 3-phase motor drive and bipolar drive of pulse motor - application.
Here is the question using a PIC or AVR how do I drive this motor using PWM? I hope that maybe I can feed a PID with step/dir commands and in turn control the motor. The board has hall sensors mounted in the proper place, it really looks like most of the driver parts are in place and I just need to proper logic (PWM). I found this site which has a ton of info but all in German and Google Translate does not do it justice. http://translate.googleusercontent....gle.ca&usg=ALkJrhivF9ATAFbJMTUOtgJO8MG2e3ZAJA
Here is a pic of the PCB with the chips marked.
Thanks for any help you guys can provide.
Part Number: PN12-60119-01
LBT79-002 DC12V 2.5A
I have found a little bit of info on the motors and I have had one spinning using the following pin out.
Pin 1 = Motor drive enable 0=Off 1=On
Pin 2 = Gnd
Pin 3 = Direction control 0=CCW, 1=CW
Pin 4 = Output from sensor A 2.5V centre
Pin 5 = +12V In
Pin 6 = Gnd (internally connected to pin 2)
Pin 7 = Output from sensor B 2.5V centre
Pin 8 = Output from sendor C 2.5V centre
Pin 9 = +5V In
It has been mentioned that it might be possible to use PWM to control the speed of this motor, which is my goal.
However I'm not sure exactly what type of PWM to feed PIN1. All of the information I have found on the net shows a driver and some sort of PID with the Hall sensors feeding the PID and the PID feeding the driver.
This motor already has a UPC1446C chip which is a "PREDRIVER FOR 3-PHASES BRUSHLESS DC MOTOR". It looks like the upc1246C chip feeds a MP6403 (Toshiba POWER MOS FET MODULE) 3-phase motor drive and bipolar drive of pulse motor - application.
Here is the question using a PIC or AVR how do I drive this motor using PWM? I hope that maybe I can feed a PID with step/dir commands and in turn control the motor. The board has hall sensors mounted in the proper place, it really looks like most of the driver parts are in place and I just need to proper logic (PWM). I found this site which has a ton of info but all in German and Google Translate does not do it justice. http://translate.googleusercontent....gle.ca&usg=ALkJrhivF9ATAFbJMTUOtgJO8MG2e3ZAJA
Here is a pic of the PCB with the chips marked.
Thanks for any help you guys can provide.
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