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The most economical way to add digitally precise, PID speed regulation to standalone or multi-section systems

The Dynapar™ brand MSJR4 improves the speed regulation and adds new capabilities to variable speed drives. Regulating extruders, mixing pumps or material handling conveyors eliminates speed variations from temperature, power line voltage or motor load changes, and results in consistently higher quality production. The MSJR4 also operates in minutes and seconds, for food and beverage applications that need to control the cooking time of ovens and broilers.
Unit of Measure

Technical Specs

Brands

 N/A
Dynapar™

Model

 N/A MSJR4

Type

 N/A Motion Controller

Display

 N/A 5 digit, 0.56 in. bright red 7-segment LED; 9 program and status display annunciators

Operating Temperature

 N/A 32 to 122 ºF0 to 50 ºC

Input Power

 N/A Universal, 85 to 265 VAC, 50-60 Hz, 18 VA

Sensor Power

 N/A Selectable, 5 or 12 VDC ± 10%, 0 to 125 mA max.

Alarms

 N/A High and low; programmable as actual value or percentage of sepoint

Security

 N/A 3 levels: Program (Disable/Enable); Setup (Off/On) and Setpoint Adjustment (Incremental/Digit by Digit/Both/None)

Signal Inputs

 N/A Feedback and Reference: squarewave (pulse) or sinewave (magnetic), 20 kHz max each

Control Inputs

 N/A Auto/Manual; Trim Reset/Jog; Ramp Hold

Analog Output

 N/A 0 to 10 VDC at 5 mA max using internal reference; or 0 to external Reference voltage, 15 VDC max

Features

N/A

  • Leader or follower operation
  • Speed or Process Time (inverse speed) setpoints
  • PID with velocity feedforward
  • Programmable Accel/Decel ramp rate
  • Speed display calibration in engineering units
  • High and Low alarms in setpoint units or percentage of setpoint
  • Three level security of setpoints, loop gains and program data
  • NEMA4/IP66 front panel washdown rating
  • Nonvolatile memory
Installation is simplified through the use of pluggable terminals and simple input and output diagnostics. The rugged metal enclosure and isolated drive output provide complete immunity from electrical noise and the universal power input is fully filtered for low emissions.

Additional Information

N/A In the follower mode, the MSJR4 will precisely match the speed of one motor, machine section or manufacturing process to another. With the assurance of zero cumulative error (drift) over time, it economically automates transfer lines, coating or draw of plastics film, and paper or plastics winding/unwinding.

Inherent in the MSJR4 is a large, LED display of actual process time or speed, which can be scaled into meaningful units (feet per minute, gallons per second, or RPM) for operator ease in monitoring and setting the desired speed.