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MC-1000 Motor Controllerfor SQL and SQ-100 SQUIGGLE MotorsThe MC-1000 motor controller generates ultrasonic signals to drive the SQ-100 Series and some SQL Series SQUIGGLE motors. The credit-card sized controller is designed for easy integration into OEM instruments. It can be used for open-loop or closed-loop systems.MC-1000 Motor Controller card is only 2 x 3 inches for easy integration into OEM instruments. Driving the motor An MC-1000 motor controller sends drive signals to a SQUIGGLE motor based on the input from a computer, analog input, or manual handset. Computer control – connect the MC-1000 to a PC through an RS-232 port. The ActiveX command library makes operation easy, from either the New Scale user interface or third-party software such as Visual Basic. You can also build custom scripts using the intuitive scripting interface. Analog control – provide a 0 volt to 3.3 volt input command, which corresponds to +/- the maximum velocity. Manual control – use the optional handset. Each MC-1000 drive card operates a single SQUIGGLE motor. You can control multiple drive cards simultaneously from a single computer screen using the software provided. Open-loop operation When using the MC-1000 controller in an open-loop configuration, you can calibrate a motor’s average step size in response to a number of drive pulses. Position resolution is listed on the motor data sheets. We recommend closed-loop operation when repeatable step size, absolute position or precise velocity control is needed. The MC-1000 accepts analog or digital input from a remote position sensor for closed-loop motion control. Software provides point-and-click PC control via RS-232 port. The Closed-loop operation (See the application note, Creating Closed-Loop Positioning Systems Using SQUIGGLE Motors.) ActiveX command library includes commands for open-loop and closed-loop operation. With an analog position sensor, closed-loop position resolution is determined by the A/D converter, the resolution of the position sensor, and the resolution of the motor. The A/D converter must be capable of resolving the position sensor feedback signal into small enough increments to allow signals to the motor at its best resolution. SQUIGGLE motor Phase 1 Phase 2 The MC-1000 drive card has a 10-bit A/D converter. The MC-1000HR (high-res) drive card has a 16-bit A/D converter. With a digital (incremental) encoder as a position sensor, the resolution is determined by the resolution of the encoder. The MC-1000 drive card accepts digital position feedback signals directly to the RS-422 input. New Scale Technologies, Inc. ~ www.newscaletech.com ~ Phone (585) 924-4450 |
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