ProScan III V31 Controller


The compact and modular design of the ProScan® III system is capable of controlling up to 16 individual stepper motor axes including; a motorized stage, focus motor, three filter wheels and three shutters with the speed, accuracy and precision required by today’s highly automated and demanding applications. Communication to the controller has been improved, as FTDI USB connection is now available making the unit compatible with Windows, Linux and Mac. Four programmable TTL inputs and outputs allow the unit peripherals or external cameras to be controlled via TTL. The advanced internal software allows for simple control of all accessories via Prior’s new Interactive Control Center (ICC) Joystick, RS232 or USB, and a SDK is supplied for easy integration into third party software. Access to acceleration, speed and even drive current is also made available for more advanced users to allow total customization of the unit.

ProScan® III provides a modular approach to minimize the footprint of the controller. The cubic design provides stylish looks with a footprint of only 177x177mm. The base unit is designed to accommodate a three axis system, e.g., a stage and focus. Additional functionality can be added to the unit via modular sections which allow for easy expansion. The ancillary box (as shown in the image to the right) accommodates any extra functionality required, e.g., three filter wheels and three shutters.

Accessories can be controlled in either the main cube or the ancillary boxes, providing a system which is totally configurable.

Note that customized units and individual boards can also be available.

CSA & MET Labs Certifications

Prior Scientific is proud to announce that the ProScan® III V31 Controller is CSA(Canadian Standards Association) certified. The CSA certification mark assures major retailers, distributors, regulators and consumers that the ProScan® III V31 Controller underwent rigorous testing to meet the U.S. and Canadian industry standards for safety and performance. To obtain CSA certification, Prior Scientific worked closely with MET Laboratories, a leading independent electrical testing and certification lab to obtain the certification.

Number of Axis Up to 16
Speed Range 0 – 70 rps, ultra smooth low speed motion
Communications 1 x USB 2.0, 2 x RS232 (up to 115K Baud)
TTL Communications 4 input /output programmable TTL connections
Power Requirements 150 W Max
Voltage 38 Volts
Dimensions 177 mm x 177 mm x 177 mm


  • Compact, space saving design.
  • Modular, expand to include the axes you need.
  • Control up to 16 axes
  • Drive stages at up to 300mms-1
  • Intelligent Scanning Technology (IST)
  • USB or RS232 communications
  • Programmable TTLs
  • Compatible with Interactive Control Centre
  • Encoder upgradable

Due to the versatility of the ProScan III control system, a number of different units are available, ensuring that the customer can select exactly the right control system for their application. We strongly recommend that ProScan controllers are used to control Prior equipment.

Note that customized units and individual boards can also be available. Other than that there is no functional difference.

‘XYZE’ indicates that the controller is capable of controlling an encoded or unencoded XY stage and a Z motor.

‘F’ indicates that it has the capability to control shutters and filter wheels, and/or other Prior equipment which uses these ports.

A ‘VLDXYZ’ indicates that it controls a linear, rather than a standard stepper, motorized stage.

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