Mentor MP
Quantum MP – High performance three phase DC drive packagecULus Listed

45 A – 700 A (10 hp – 400 hp)

460 V

The Quantum MP is a packaged Mentor MP DC drive providing reliability, power and control to increase productivity for both new machines and applications in which DC motors are already installed. The Quantum MP package includes the drive, fusing, power switching and 115Vac interface making it the ideal choice for rapid retrofits with regenerative and non-regenerative modules available to suit your application. The Quantum MP saves engineering time and panel space making it ideal for North American customers.

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

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




(A) (H) (W) (D)
QMP45A4-xxx QMP45A4R-xxx 1A 45 8 22.8 in (578 mm) 13.0 in (330 mm) 8.7 in (221 mm)
QMP75A4-xxx QMP75A4R-xxx 75
QMP155A4-xxx QMP155A4R-xxx 1B 155 8 22.8 in (578 mm) 13.0 in (330 mm)  9.8 in (250 mm)
QMP210A4-xxx QMP210A4R-xxx 210
QMP350A4-xxx QMP350A4R-xxx 2A 350 20 35.0 in (889 mm)  20.3 in (516 mm) 13.0 in (330 mm)
QMP400A4-xxx QMP400A4R-xxx 400
QMP550A4-xxx QMP550A4R-xxx 2B  550 20 36.0 in (915 mm) 20.3 in (516 mm) 15.0 in (381 mm)
QMP700A4-xxx QMP700A4R-xxx 700
Keypads and parameter storage
MP Keypad
MP-Keypad is a multi-lingual, hot-pluggable, backlit LCD display for Mentor MP and Quantum MP DC drives
This memory device can be used to backup parameter sets and PLC programs and copy them from one drive to another
SM Keypad
SM-Keypad is a high-brightness LED keypad for Unidrive SP (except frame size 0), Mentor MP and Quantum MP drives

Drive interface units – Communications

CT USB Comms Cable
The USB Comms cable allows the drive to connect to a PC for use with Unidrive M’s PC tools*


Operator Interfaces and HMIThe powerful CTVue HMI (Human Machine Interface) line and integrated drivers for Control Techniques drives make it easy to integrate HMI with CT drives




Automation and motion option modules



SM-Applications Plus
SM-Applications Plus offers high performance programmable logic and motion control together with high-speed I/O and CTNet, a high-speed Fieldbus
SM-Applications Lite V2
User-programmable logic and motion control module for standalone drive applications or for when the drive is connected to a centralized controller via I/O or fieldbus
A flexible, high-performance solution for programmable motion requiring high-speed registration features
Communication option modules
CANopen interface supports various profiles including several drive profiles
SM-DeviceNET SM Option Module
Follower SM Option Module for high performance servo applications
Supports Ethernet/IP and Modbus TCP/IP and can generate emails; provides high-speed drive access, global connectivity and integration with IT network technologies
Interbus interface SM Option Module
Follower SM Option Module
PROFINET is an Ethernet-based industrial network protocol adapting Ethernet hardware and protocols
Input and output option modules
Flexible I/O system for remote connectivity with Control Techniques’ SM-Applications Plus and SM-Register Option Modules
SM IO 24V Protected
Overvoltage protected I/O SM Option Module
SM-IO 120V
Module that provides digital I/O rated to 120VAC
SM-IO 32
Extended digital I/O, adding 32 digital high speed bi-directional I/O points to the drive
SM-IO Lite
Extended I/O interface with reduced functionality
NAMUR standard I/O interface with high-speed I/O
SM-IO Plus
Extended I/O interface to increase the number of I/O points on a drive
SM-IO Timer
Extended I/O SM Option Module with real-time clock
Feedback option modules
SM-Encoder Output Plus
Incremental encoder input and SM Output Mption module enables connection with external motion controllers
SM-Encoder Plus
Incremental encoder input SM Option Module
SM-Universal Encoder Plus
Additional combined encoder input and output interface supports Incremental, SinCos, HIPERFACE, EnDAT and SSI encoders


External Field Control

FXMP25 – DC field controller (up to 25 A)
External field controller for DC motors with field currents up to 25 A



Power Accessories

  • Dynamic Braking Resistors
  • Line Reactors
  • EMC Filters
  • Field Supply Buck/Boost Transformers
  • DC Motors
Control Techniques Windows-based software packages connect using Ethernet, CTNet, Serial or USB connections. Ethernet communications allow the drives to be accessed remotely, anywhere in the world.


Commissioning and monitoring software


CTSoft - Drive configuration tool for Control Techniques drives
CTSoft is a drive configuration tool for commissioning, optimizing and monitoring Control Techniques drives
CTScope - Real-time software oscilloscope
CTScope is a real-time, full-featured software oscilloscope for viewing and analyzing changing values within the drive

Automation and motion programming software


SyPTPro - System programming toolkit for drive automation systems
SyPTPro provides a full featured programming environment for PLC and motion control onboard Control Techniques AC, DC and servo drives
SyPTLite - Fast user program editor for Control Techniques drives
SYPTLite is a ladder diagram editor allowing users to develop simple programs for Control Techniques drives and SM Option Modules
Connectivity software
CTOPCServer - OPC compliant server
CTOPCServer is an OPC compliant server for interfacing your PC software with Control Techniques


HMI software

CTVue HMI Software
Control Techniques CTVue human interface software tool enables the operator to easily configure drive-related control variables.

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User Guides

Title Issue File
Size Lang
CTNet I/O User Guide 3 pdf 1.27 MB EN
CTNet Remote I/O Basics 1 pdf 2.09 MB EN
CTNet User Guide 8 pdf 1.92 MB EN
Quantum MP (sizes 1 and 2) Users Guide A4 pdf 12 MB EN

Issue Guides

Title Issue File
Size Lang
A guide to Control Techniques option modules 1 pdf 1.95 MB EN
A guide to Electromagnetic Compatibility (EMC) for variable speed drives 1 pdf 4.97 MB EN
A Guide to Popular Fieldbus Systems for use with Variable Speed Drives 2 zip 6 MB EN
A Guide to Supply Harmonics and other low frequency disturbances 2 pdf 3.78 MB EN


Title Issue File
Size Lang
CTVue Configurator 3 Software Build 662-0 Compatible with all color touch screens (Use CTVue Configurator 2 for monochrome panels) 662 zip 69 MB EN
PowerTools Pro version 5.3 5.3 zip 18 MB EN

2D Drawings

Title Issue File
Size Lang
QMP Size 1A 1.0 dwg 1.40 MB EN
QMPsize2_Install 1.0 dwg 1022 KB EN

Application Notes

Title Issue File
Size Lang
Application Note Directory (CTAN) 4.0 pdf 294 KB EN
CTAN120 – S-Ramp Accel/Decel Ramps – All CT Products 1.2 pdf 136 KB EN
CTAN131 – Remote Modem Communication with Drives 1.2 pdf 329 KB EN
CTAN132 – Line Reactors 1.5 pdf 58 KB EN
CTAN144 – Application of Line Reactors and Isolation Transformers for AC and DC Drives 1.4 pdf 122 KB EN
CTAN154 – Driving External Relays 1.5 pdf 144 KB EN
CTAN179 – Dynamic Braking Resistor Selection Chart (Per Horsepower of Load) 1.1 pdf 100 KB EN
CTAN242 – Driving Analog Meters 1.0 pdf 81 KB EN
CTAN275 – Extra Digital inputs and outputs 1.0 pdf 88 KB EN
CTAN283 – Using CTNet I/O 1.2 pdf 239 KB EN
CTAN290 4-20mA Current Loop Extensions 1.2 pdf 139 KB EN
CTAN297 – SM-Ethernet save restore and re-init 1.1 pdf 77 KB EN
CTAN305 Creating Motor Over Temperature Trip 1.2 pdf 237 KB EN
CTAN306 – SM-DeviceNet save restore and re-init 1.3 pdf 263 KB EN
CTAN313 SM-Keypad Plus as a Startup Tool 1.1 pdf 145 KB EN
CTAN316 Drive Parameter Menu Structure 1.1 pdf 73 KB EN
CTAN331 Creating a UniPolar Analog Speed Output 1.2 pdf 166 KB EN
CTAN332 Time of day and day of week applications 1.2 pdf 103 KB EN
CTAN336 Using the Drives +24vdc Supply for External Devices 1.3 pdf 61 KB EN
CTAN345 Stabilizing Erratic Signals 1.1 pdf 111 KB EN
CTAN349 Inverting the Sense of Speed Command Signals 1.1 pdf 69 KB EN
CTAN352 Backing Up Using the Smart Card 1.2 pdf 750 KB EN
CTAN353 Backing Up Critical Drive Setup Info Using CTSoft 1.1 pdf 630 KB EN
CTAN354 Eliminating Speed Creep- Low End Analog Drift 1.0 pdf 190 KB EN
CTAN361- Field Weakening Feedback Loss and the Speed Estimator 1.1 pdf 58 KB EN
CTAN362 – Using the Quantum MP with 24vdc PLC Control 1.0 pdf 186 KB EN
CTAN364 – Quantum MP with Motorized Potentiometer (MOP) 1.0 pdf 92 KB EN
CTAN365 – Masking Faults and Stopping on Trip Conditions 1.0 pdf 151 KB EN
CTAN366 – Mentor / Quantum MP Security Code 1.0 pdf 35 KB EN
CTAN369 – Quantum MP Default Files 1.1 pdf 385 KB EN
CTAN375 Quantum III to Quantum MP Conversion Guide 1.1 pdf 678 KB EN
CTAN376 Configuring the Quantum MP for Ramp Stop/DB Stop 1.0 pdf 57 KB EN
Quantum MP / Mentor MP Application Notes 4.0 pdf 82 KB EN

EMC Datasheets

Title Issue File
Size Lang
FXMP25 EMC Datasheet 1 pdf 159 KB EN
LV and EMC Directive Declaration FXMP25 Issue 1 pdf 83 KB EN

Technical Library

Title Issue File
Size Lang
Alphabetically Listed Topical Directory of Technical Resources 1.11 pdf 249 KB EN

Cable Drawings

Title Issue File
Size Lang
Communications Cables 1.0 pdf 164 KB EN
CTVUE-DC-485_810889-000-01.pdf 1 pdf 109 KB EN
ENCO A3 1 dwg 170 KB EN

Product Support Videos

Title Issue File
Size Lang
Masking Trips 1 wmv 10 MB EN

Technical Notes

Title Issue File
Size Lang
CTTN157 – Essential Codes 1 pdf 28 KB EN

Video Instructions

Title Issue File
Size Lang
CTVI129 – Masking Trips 1 wmv 10 MB EN

Troubleshooting Guides

Title Issue File
Size Lang
CTTG136 – Input Power Problems 1 pdf 34 KB EN
CTTG139 – Input Power Problems 1.6 pdf 115 KB EN

Software Archive

Title Issue File
Size Lang
CTNet I/O Example Files 1 zip 152 KB EN
CTScope (now supports Unidrive M200-M700) V2.1 zip 27 MB EN
CTSoft V 1.14.02 1.14.02 zip 64 MB EN
CTVue Configurator 3 Software Build 515 – Compatible with all color touch screens (Please read the readme.txt before installing) 3 zip 81 MB EN
CTVue Configurator 3 Software Build 587-1 – Compatible with all color touch screens (Please read the readme.txt before installing) 1 zip 68 MB EN
PowerTools Pro version 5.1 5.1 zip 18 MB EN
PowerTools Pro version 5.2 5.2 zip 18 MB EN
QMP Defaults 1 zip 652 bytes EN