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> MM120 2.5A bipolar microstepping stepper motor driver
MM120 2.5A bipolar microstepping stepper motor driver
The MM120 is a microprocessor controlled Single Axis 2.5A/phase bipolar microstepping Stepper driver. The MM120 supports full, half, quarter and one eigth micro step. An onboard ATmega168 8bit RISC microprocessor interprets commands sent to the driver on a parallel header. The MM120 is capable of 24-35V operation. Logic power of 5VDC must be supplied to the board. A potentiometer sets driver current and optionally reference voltage. A large heat sink keep the driver chip cool during heavy loads. Step, direction, I2C SDA, I2C SCL, limit switch and eStop inputs are fed to the onboard processor that in turn controls the driver chip. The MM120 is designed for high performance bipolar stepping applications. The MM120 is ideal for small mill and lathe CNC applications.
The MM120 has an I2C TWI port. Software on the onboard ATmega168 processor recognizes commands sent to the MM120 via the I2C port. The MM120 has a single line G Code like command set so it is possible to send linear motion control commands directly to the MM120 and have the ATmega168 drive the driver chip directly. Alternatively step/direction signals can be sent directly to the device.
The MM120 can be driven by the MK1, MK4, MK5, MK54 or MK200 Stepper Motor Controllers. The MK1 is a simple breakout board. The MK4 and MK5 are 4 and 5 axis controllers that route a PC parallel port DB25 signals to each of the driver ports, limit switchs and auxiliary IO.
For detailed technical information (pdf): MM120 Technical Reference Manual
* Single Axis bipolar stepper motor driver
* 1, 2, 4, 1/8 microstepping modes supported
* Step, direction, SDA, SCL, limit switch and eStop digital inputs
* I2C interface with on board I2C command recognition
* On board ATmega168 processor for custom software control
* Compatible with Mk1, MK4, MK5, MK54 and MK200 controllers
This is a new unit direct from the manufacturer and includes warranty and technical support.
