MFC-2000 Z-Axis Drive and Controller

About the MFC-2000

The MFC-2000 has been specifically designed to provide a high resolution and highly repeatable, means of controlling the focus/Z position of the microscope stage. Precise control of the microscope’s focus is obtained through the use of a closed-loop DC servomotor employing high resolution encoders for positioning feedback. By using closed-loop control of the focus position, there is no chance that the focus point can be lost as can occur with open-loop stepper motors.

Rather than a one-size-fits-all design, the Z-axis drive is custom designed for each microscope, and when installed, they become an integral part of the microscope. A switch located on the control console operates a clutch that disengages the motor drive from the fine focus shaft when the drive is not needed. When disengaged, the position still displays and is still available for interrogation by computer, and the microscope can be focused manually without any drag or twisting cables.

Installation of the Z-axis drive requires no modification to the microscope other than removal of the fine focus knob and replacement of a back plate or base plate, depending on the particular microscope. All of the necessary hardware components, tools and detailed instructions, including a videotape on installing the drive, are provided with every unit.

The microprocessor-controlled MFC-2000 control unit provides for RS-232 communication with a host computer. High-speed serial communication using USB is also possible.

More Info

Features
MFC-2000 Features
  • Closed- loop DC servo control of z-axes for precise positioning and highly repeatable focusing
  • Compact ergonomic tabletop control unit size is 6″D x 9″W x 3″H
  • Backlit LCD display shows Z coordinates
  • Utilizes ASI’s proven Z-axis drives
  • Microprocessor control with RS232-C serial communications
  • Z-axis clutch for easy switching between manual and motor-driven focus control
  • “Zero” and “Home” button for simple stand-alone operations
  • USB serial computer interface
Specifications
Specifications For Standard Configuration
Z axis resolution (encoder step) 0.05 μm
Z axis repeatability ±0.1 μm
Z axis maximum velocity 0.6mm/sec
Linear Encoder Options
For Z-Axis
Type Model Resolution Stroke
Heidenhain MT 1271 50 nm 12 mm
Heidenhain MT 2571 50 nm 25 mm
Datasheets