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Flexible system integration

Quantum MP is a modern packaged DC drive that has unparalleled flexibility through the integration of Control Techniques' AC control platform on a DC drive. The Quantum MP inherits system integration flexibility such as:

  • Two open SM Option Module slots for automation control, I/O, feedback devices and communications
  • Smartcard for PLC program and parameter storage
  • Software tools for easy configuration and monitoring

Additional features include:

  • Patented (pending) galvanic isolation protects control circuits against poor quality industrial power supplies and high voltage circuitry
  • Powerful onboard intelligence fine-tunes the drive’s functionality to the application and allows the removal of troublesome analog control circuits
  • Fieldbus options include Ethernet, Profibus and DeviceNet allowing Quantum MP to be integrated within an automation system
  • CTSoft, a windows-based software package, provides an intuitive environment for configuring the drive's functionality
  • Quantum MP integrates closely with Control Techniques AC drives using CTNet drive-to-drive communications 

Technology for reliability and performance

Quantum MP takes a step forward in performance, robustness and reliability:

  • High performance motor control:
    • 32-bit microprocessor
    • 35μs current sampling time
    • Speed controller and ramps update 250μs
    • Autotune features for armature, field current loops and speed loop
  • Galvanic isolation (patent pending) between power and control protects the control circuits and other equipment connected to the drive from the high voltages on the power circuit. This feature is unique on DC drives
  • Protection system against poor industrial power supplies and lightning strikes
  • Integrated drive and motor protection for:
    • Over current
    • Over temperature
    • Phase loss
    • SCR junction temperature
    • Feedback loss
    • Field loss
    • Armature open circuit

Flexible field control

Internal field controller with intelligent field weakening means that 90% of applications require no additional external controller

  • Integrated field control on frame size 1 to 8 A
  • Integrated field control on frame size 2 to 20 A
  • Flux control for enhanced open-loop performance
  • External FXMP25 field control to 25 A
    • Digital link for field control from Quantum MP or Quantum III
    • Standalone digital control mode for simple applications
    • Flux control for enhanced open-loop performance
    • Intelligent field weakening
    • Field forcing - for high dynamic machine reversal
    • Field reversal - low dynamic machine reversing using two quadrant main stack


  •  High-speed semiconductor fusing for reliable circuit protection
  • 115 Vac control interface to coordinate signals and commands to the drive
  • DC loop contactor (with DB pole up to 250 hp @ 480 Vac) disconnects the Quantum MP drive from the motor armature when stop command is given or in the event of a power failure
  • DC output fuse on all regen models helps avoid nuisance trips
  • Regenerative and non-regenerative modules available to best match application needs
  • Multiple fieldbus options including Ethernet, Profibus and DeviceNet are used to integrate Quantum MP drives into automation systems


  • Ambient operating temperature:  32° to 131°F (0° to 55°C )
  • Derate current 1.5% per °C from 104° to 131°F (40° to 55°C )
  • Cooling method QMP25-QMP45 natural convection
  • QMP75 and larger forced convection
  • Humidity 90% relative humidity at 122°F (50°C)
  • Storage temperature:  -40° to 131°F (-40° to 55°C )
  • Altitude: 0 to 9,842 ft (0 to 3,000 m), derate 1% per 380 ft (100 m) between 3,280 ft (1,000 m) and 9,842 ft ( 3,000 m)
  • Enclosure IP00

AC Supply Requirements

  • Supply voltage 208 to 480VAC ±10%
  • Frequency 48 to 65 Hz
  • Supply fault current 100 kA
  • Drive efficiency 99%
  • Armature voltage (max.) non-regen drives — 1.35 X input VAC; regen drives — 1.15 X input VAC
  • Field voltage (max.) 0.9 X input VAC with 1-phase input


  • Analog input resolution: 16-bit plus sign, 250μs (Qty 1), 10-bit plus sign, 250μs (Qty 2)
  • Speed loop:  250μs loop update
  • Current loop:  35μs current sampling time
  • Feedback methods
  • Encoder (resolution 0.01%)
    • DC tachometer (resolution 0.1%); AC tachometer (resolution 1%) (300V max.)
    • Armature Voltage (resolution 5% )
  • Optional additional incremental and absolute encoders (Qty 2)
  • Field control current regulated with flux control
  • QMP25-QMP 8A
  • QMP350-QMP7000 20 A
  • Optional FXMP25 25 A
  • Serial communications:  2- or 4-wire RS422 or RS485, optically-isolated
  • Protocol:  ANSI x 3.28-2.54-A4 or Modbus RTU
  • Baud rate: 300 to 115,200

Protection & Diagnostics

  • Control galvanic electrical isolation, 24 VDC power supply
  • Supply loss, undervoltage, overvoltage, transient suppression, semiconductor fuses
  • Armature open circuit, I2t overload, instantaneous overcurrent, semiconductor fuse (regen only)
  • Field loss, overcurrent
  • Motor: motor over-temp switch or thermistor overtemperature trips
  • Drive thermal heatsink, SCR junction, control board and option module(s)
  • Current loop Loss:  Loss of analog current reference

24 VDC I/O

  • Digital inputs: 3 x 24 VDC
  • Digital input/outputs:  3 x 24 VDC
  • Analog inputs:  1 x 16-bit differential
  • 0-10 V, 2 x 10-bit voltage or mA
  • Analog outputs:  2 x 10 bit voltage or mA

120 VAC I/O


    - STOP
    - RUN
    - JOG
    - FWD/REV
    - RESET
  • Outputs DRIVE ON
  • Relays (QTY 2)
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