I designed a STAND alone CNC DRIVER Test board.
No need for PC, Software, etc. Does BASIC checkout
of Driver electronics, stepper motor, etc.
I am using SOC-Robotics Bipolar driver cards (4) that plug into
an interface card that then connect to PC and Power supply.
I occasionally have to repair the driver card (replace the big
Motor Drive IC) and wanted an easy way to test the driver card/stepper motor
before risking the interface card/PC.
What I came up with is a small PC board with a 555 timer used as an astable vibrator
to generate the pulses, a regulator to drop the Motor voltage down to needed logic
voltage, plus can vary speed, Direction, test Reset and Enable, etc. Just the basics,
but quickly tells if driver card is doing the basic functions. I use a dedicated
24V supply (BIG) I had on my pile. WORKS GREAT.
Power switches allow logic power to be on before motor voltage is turned on.
Quick plug in of driver cards. Should work with many brands of drivers.
Schematic and photos attached.
GORT
No need for PC, Software, etc. Does BASIC checkout
of Driver electronics, stepper motor, etc.
I am using SOC-Robotics Bipolar driver cards (4) that plug into
an interface card that then connect to PC and Power supply.
I occasionally have to repair the driver card (replace the big
Motor Drive IC) and wanted an easy way to test the driver card/stepper motor
before risking the interface card/PC.
What I came up with is a small PC board with a 555 timer used as an astable vibrator
to generate the pulses, a regulator to drop the Motor voltage down to needed logic
voltage, plus can vary speed, Direction, test Reset and Enable, etc. Just the basics,
but quickly tells if driver card is doing the basic functions. I use a dedicated
24V supply (BIG) I had on my pile. WORKS GREAT.
Power switches allow logic power to be on before motor voltage is turned on.
Quick plug in of driver cards. Should work with many brands of drivers.
Schematic and photos attached.
GORT