CONTROL SYSTEMS SOLUTIONS
F O R P R E C I S I O N M O T I O N T E C H N O L O G Y
9415 Pioneer Ave. • Charlotte, NC 28273Phone: (704) 588-4610 • (800) 477-5002 Fax: (704) 588-1994 Email: [email protected]
www.duffnorton.com
© 2018 Duff-Norton, Inc., Columbus McKinnon Engineered Products. All Rights Reserved.
135 YEARS OF POSITIONING & PROCESS SOLUTIONS
PB-CNTL-01 01/18
Since 1883, Duff-Norton has been at the forefront
of precision motion technology. Providing a continued
commitment to leading edge manufacturing and highest
quality engineered products for the most advanced
industrial lifting, positioning and transfer needs for our
customers worldwide.
Motion technology today is expected to lift, move and
precisely position heavy loads, often under extreme or
adverse conditions. Whether it’s creating motion to twist
and pivot, open and close or keeping a production line
moving, Duff-Norton has the right solution to meet the
demand.
Our systems can be found in industries ranging from
aluminum, steel, agriculture, pharmaceutical, material
handling, energy, food and beverage, and automated
machinery.
ISO
9001:2015 10000677 Q
M15
Duff-Norton ®
Your First Choicefor Control Systems Solutions
www.duffnorton.com • Ph: (800) 477-5002 • Fax: (704) 588-1994 32
DUFF-NORTON CONTROLS . . . . . . . 4
FeaTUReS aND BeNeFiTS . . . . . . . . 5
CUSTOM CONTROLS . . . . . . . . . . . . . . . 6
SYNCHRONiZaTiON CONTROLS . . . . . . 7
VaRiaBLe SPeeD CONTROLS . . . . . . . . 8
POSiTiONiNG CONTROLS . . . . . . . . . . . 9
PeNDaNT CONTROLS . . . . . . . . . . . . . 10
DiGiTaL DiSPLaY CONTROLS . . . . . . . . 11
THRee PHaSe JOG CONTROLS . . . . .12
SiNGLe PHaSe JOG CONTROLS . . . . . 13
OPTiONaL aCCeSSORieS . . . . . . . . . . 14
CONTROL COMPaRiSON CHaRTS . . . . 14
TERmS OF SALE . . . . . . . . . . . . . .15
NOTE
Duff-Norton has made every effort to ensure that the information contained in the publication is accurate and reliable. Determining the suitability of our products for specific applications is the user’s responsibility.
WARNINGThe equipment shown in this catalog is intended for industrial use only and should not be used to lift, support, or otherwise transport people unless you have written statement from Duff-Norton which authorizes the specific actuator used in your applications as suitable for moving people.
TABLE OF CONTENTS
DUFF-NORTONCONTROL SYSTEMS
FOR PRECISION MOTION TECHNOLOGY
DUFF-NORTONCONTROL SYSTEMS
Whether you need a custom
turn-key solution, a standalone,
or an integration into a legacy
system our automated motion
control solutions bring together
the products and technology that
improve your processes and move
you into the future through each
stage of production.
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DUFF-NORTONCONTROL SYSTEMS FEATURES AND BENEFITS
DUFF-NORTONCONTROL SYSTEMS
Electric control systems support a wide range of applicationsDuff-Norton engineers a wide range of controls systems, and can provide turn-key solutions for applications
ranging from jogging controls to complex automated systems. We offer systems from fractional horsepower
sizes up to 200 HP.
■■ Synchronization controls
■■ Positioning controls
■■ PLCs
■■ HMis
■■ VFDs
■■ Safety relays
■■ PLC
■■ HMi
BeNeFiTS
iNDUSTRY eXPeRTiSe
STaNDaRD HaRDWaRe
STaNDaRD SOFTWaRe PROGRaMMiNG
STaNDaRD FeaTUReS
■■ all Duff-Norton controls are designed to meet UL508a
■■ NeMa enclosures provided for all applications
■■ Labeled terminal strip for ease of field connections
■■ Motor overload protection
■■ Short circuit protection for all control voltages
■■ external Main Disconnect Switch (MDS)
■■ all wires labeled for quick troubleshooting
■■ electrical schematics provided for all applications
■■ Fewer interfaces
■■ Better performance
■■ One integrated system
■■ Turn-key solutions
■■ Reduced downtime
■■ increased productivity
■■ Variable speed controls
■■ Jog Controls
■■ encoders
■■ Motor overloads
■■ Linear sensors
■■ Contactors
■■ VFD
■■ SERVO
Why use Duff Norton Controls?We are linear motion experts. We
know our linear motion products
better than anyone and understand
the challenges you face – navigating
a dynamic marketplace that demands
innovative technologies and the agility
to contend with a greater need for
increased productivity.
Our industrial experience combined
with the latest controls technologies
and our broad assortment of linear
motion products make us the ideal
partner to work closely with you to
design and implement your system
solutions.
We know how to get the highest
performance out of our linear motion
products. Through our control solutions
we can meet the most advanced
industrial lifting, positioning, and transfer
demands needed to help you gain a
competitive advantage in the global
marketplace.
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Synchronization Controls Synchronization controls provide smooth, reliable
synchronization of multiple axis of motion. We
offer a variety of solutions for synchronizing from
two to six axis of motion. Our synchronization
packages are designed with reliability and
safety in mind. Most importantly, to hold the
tolerances for your specific application.
SYNCHRONIZATION CONTROLS
DUFF-NORTONCONTROL SYSTEMS
MeTHODS
FeeDBaCK
OPTiONSSynchronization Control Methods■■ Motor starters with motor overload protection
■■ Variable Frequency Drives (VFDs)
■■ Servo motors with absolute encoders
Synchronization Control Feedback Options■■ incremental encoders
■■ absolute encoders
■■ Potentiometers
■■ Linear transducers
Synchronization Control Options■■ Line reactors/filters for longer motor cable lengths
■■ 4 - 12 inch color touch screens (HMi)
■■ Pendant controls
■■ Live positioning display
■■ Strobe/stack light for motion
■■ additional e-Stops
■■ UL or cUL certifications
MCR FAULT
OUTPUTS INPUTS
SAFETY RELAY LIMITS OK
Local Message Display
DRIVE READY
O0:0 POWER LIGHTO0:1 MCR POWERO0:2 RUN FORWARDO0:3 RUN REVERSEO0:4 SPAREO0:5 DRIVE FREQ 1O0:6 DRIVE FREQ 2O0:7 DRIVE ENABLEO0:8 RELEASE BRAKEO0:9 SPAREO0:10 SPAREO0:11 SPARE
I0:0 ENCODER CH AI0:1 ENCODER CH BI0:2 SPAREI0:3 SPAREI0:4 E-STOP ACTIVEI0:5 MCR IS ONI0:6 DRIVE READYI0:7 DRIVE FAULTI0:8 SPAREI0:9 SPAREI0:10 SPAREI0:11 SPAREI0:12 BRAKE RELEASEDI0:13 SPAREI0:14 SPAREI0:15 SPAREI0:16 SPAREI0:17 SPAREI0:18 EXTEND LIMITI0:19 RETRACT LIMIT
I/O SCREEN150 T
MAIN MANUAL FAULT INFO
Custom Controls Duff-Norton realizes no two applications
are the same. We work closely with
you to understand your application
and provide the best possible solution.
Control packages can be highly
customized to meet your needs.
We offer a wide variety of options to
meet demanding control requirements.
Package options can easily be
implemented to best fit your application
and provide you with complete turn-key
solutions.
CUSTOM CONTROLS
DUFF-NORTONCONTROL SYSTEMS
Local Message Display
PEDESTAL
RAISEPEDESTAL 2
15 HZ
40 HZ
50 HZ
60 HZ
15 HZ
40 HZ
50 HZ
60 HZ
LOWERPEDESTAL 2
RAISESOUTH SIDE
LOWERSOUTH SIDE
RAISEAFT SIDE
LOWERAFT SIDE
RAISENORTH SIDE
LOWERNORTH SIDE
RAISEFORWARD SIDE
LOWERFORWARD SIDE
RAISEPEDESTAL 1
LOWERPEDESTAL 1
15 HZ
40 HZ
50 HZ
60 HZ
RAISEPEDESTAL 4
LOWERPEDESTAL 4
MANUAL SCREEN 2
MENU SCREEN 2
RAISEPEDESTAL 3
RAISEPEDESTALS
LOWERPEDESTALS
15 HZ
40 HZ
50 HZ
60 HZLOWER
PEDESTAL 3
1 - FORWARD LEFT
2 - FORWARD RIGHT
3 - AFT RIGHT
4 - AFT LEFT
N.NNN
N.NNN
N.NNN
N.NNN
NNNNN
NNNNN
NNNNN
NNNNN
POSITION LOAD
MANUAL SCREEN 1
■■ Multiple axis of motion
■■ aC or DC controls
■■ Load sensing
■■ Servo applications
FeaTUReS & BeNeFiTS OPTiONSAdditional Custom Control Options
■■ Stack lights
■■ HMi pendants
■■ Programming ports
■■ Quick disconnects
■■ enclosure heaters
■■ explosion proof enclosures
■■ Remote pushbutton stations
■■ Motor cables
■■ Feedback cables
■■ Console enclosures
■■ NeMa type 4/4x enclosures
■■ LeD indicators
UL, cUL Requirementsa large majortity of our control panels can be
made available with UL or cUL certifications.
MET
LISTED
US
Complies withUL 508AE212326
SN160ENCLOSED INDUSTRIAL CONTROL PANEL
No. A 06621181
®C UL US LISTEDMET
LISTED
US
Complies withUL 508AE212326
SN160ENCLOSED INDUSTRIAL CONTROL PANEL
No. A 06621181
®C UL US LISTED
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Variable Speed Controls Many applications require a variation of
speeds during the motion process. Our
Variable Speed Controller allows the
speed pot to be adjusted between 0%
and 100%, even while the application
is in motion. We offer preset, select-
able speed controls with a choice of
three different speeds (25%, 50% and
100%). if custom speeds are desired,
they can be easily entered into a nu-
meric keypad as a percentage ranging
from 0 to 100%. You have a choice of
a pushbutton controller or color touch
screen operator for your application.
Standard VFD Synchronization Enclosure Dimensions
HP HEIGHT WIDTH DEPTH
1/2
42 in30 in 8 in
3/4 - 1
1-1/2
2
3
5
48 in7-1/236 in 10 in
10
VARIABLE SPEED CONTROLS
CONTROLCOMPONENTS
BeNeFiTS OPTiONS
Variable Speed Control Advantages■■ allows greater flexibility for motion
applications
■■ Multiple processes can be achieved with the same equipment by adjusting speeds
■■ eliminates the need for additional equipment for fast or slow processes
■■ eliminates equipment hard starts and stops
■■ Prolongs equipment life
Variable Speed Controls Options■■ Door mounted Speed Pot adjustable from
0 to 100%.
■■ Preset, selectable speeds using a panel mounted selector switch
■■ Numeric entry speed using a HMi touch screen
■■ UL or cUL certifications
Positioning Control Positioning applications can be complicated
and time consuming. We offer an adaptable
range of options to precisely position single
or multiple axes of motion. Locations can be
easily entered with our numeric entry position
controls anywhere along a desired axis and
then activated with the Move-To pushbutton.
Duff-Norton’s versatile, programmable entry
position control allows up to five preset
positions. Positions can be programmed,
stored and changed at any time.
MCR FAULTSAFETY RELAY LIMITS OK DRIVE READY
CURRENT POSITION: INCH MMNNN.NN
NN.NN NN.NN NN.NN NN.NN NN.NN NN.NN
NNN.NN
Local Message Display
MOVE TOSETPOINT 1
MOVE TOSETPOINT 2
MOVE TOSETPOINT 3
MOVE TOSETPOINT 4
MOVE TOSETPOINT 5
MOVE TOPOSITION
STORE ASSETPOINT 1
STORE ASSETPOINT 2
STORE ASSETPOINT 3
STORE ASSETPOINT 4
STORE ASSETPOINT 5
MOVEPOSITION
MANUAL SCREEN 1
MANUAL I/O FAULT INFO AUTOSTOP
POSITIONING CONTROL
CONTROLCOMPONENTS
FEATURES MeTHODS
Standard Position Control Features■■ Panel mounted emergency stop
(e-Stop)
■■ Labeled terminal block for field connections
■■ Fused and shafted Main Disconnect Switch (MDS)
■■ Short circuit protection
■■ Color touch screen (HMi)
■■ NeMa type 12/13 wall mount
Position Control Methods■■ Numeric position entry
■■ Programmable entry positions
enclosure
■■ Two-channel safety relay
■■ Brake relay, if required
■■ illuminated POWeR ON indicator
■■ UL or cUL certifications
MET
LISTED
US
Complies withUL 508AE212326
SN160ENCLOSED INDUSTRIAL CONTROL PANEL
No. A 06621181
®C UL US LISTEDMET
LISTED
US
Complies withUL 508AE212326
SN160ENCLOSED INDUSTRIAL CONTROL PANEL
No. A 06621181
®C UL US LISTED
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Pendant Controls Duff-Norton pendant controls
provide ease of movement around
applications. We offer an option of
3, 5, 7, and 9 button pendants. each
pendant control comes standard with
an easily accessible emergency stop
(e-Stop) button on the pendant.
Customize your pendant with
selector switches, momentary
pushbuttons, indicators, and
nameplates to meet your application
need. Pendant controls are available
to control packages for jogging,
synchronization, positioning, and
variable speed uses.
PENDANT CONTROLS
CONTROLCOMPONENTS
Digital Display Controls Positioning applications are becoming
increasingly popular in today’s industry.
Duff-Norton controls provide easy-to-read, live,
positioning feedback and can be used with
encoder, linear transducer, or potentiometer
feedback. Scaling a linear application is easy
using the panel mounted pushbuttons on the
digital display.
DIGITAL DISPLAY CONTROLS
CONTROLCOMPONENTS
Additional Pendant Control Options■■ LOCaL/ReMOTe keyed switch
■■ illuminated e-Stop
■■ Customizable pendant cable lengths
■■ UL or cUL certifications
Five Button Control Pendant
Nine Button Control Pendant
Three Button Control Pendant
Digital Display Controls Features
Display Resolution
Input Types Power
0.001 inches• Potentiometer (0 - 10K OHM)• encoder• analog 4 - 20 Ma
aC and DC models available
BeNeFiTS OPTiONS
Standard Benefits of Digital Display Controls■■ Digital display controls can easily be “zeroed”
with the press of a single button
■■ Digital display controls offer live feedback for precise positioning
■■ Displays can be set up to display up to five decimal positions
■■ No need for excitation power supplies for potentiometer applications
■■ additional pull-up resistors are not required for encoder applications
Digital Display Controls Options■■ Multiple displays can be used
in the same control panel
■■ Optional outputs for indicators or alarms
■■ Displays can be provided for existing applications
■■ UL or cUL certifications
MET
LISTED
US
Complies withUL 508AE212326
SN160ENCLOSED INDUSTRIAL CONTROL PANEL
No. A 06621181
®C UL US LISTED
FEATURES OPTiONS
Standard Pendant Control Features■■ Three, five, seven, and nine button pendants
■■ emergency Stop (e-Stop) on pendant
Custom Pendant Control Features■■ Selector switches
■■ Momentary pushbuttons
■■ indicators
■■ Custom nameplates
MET
LISTED
US
Complies withUL 508AE212326
SN160ENCLOSED INDUSTRIAL CONTROL PANEL
No. A 06621181
®C UL US LISTED
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Three Phase Jog ControlDuff-Norton standard three phase
jogging motor controls provide simple
operation and reliable service. To start
motion simply press and hold the extend
or retract pushbutton. To stop motion
release either the extend or retract
pushbutton. Our three phase jogging
motor controls come standard with a
power on indicator to inform users that
the panel is under power. Standard three
phase jog panels include an auxiliary
brake relay if fast stopping is required.
Labeled terminal strips are included for
easy termination of end-of-travel limit
switches.
Single Phase Jog Control Duff-Norton offers single phase jogging control
panels that meet a wide variety of single phase
voltages. all of our control panels come standard
with short circuit protection devices as well as
adjustable motor overload protection.
SINGLE PHASE JOG CONTROL
CONTROLCOMPONENTSTHREE PHASE JOG CONTROL
CONTROLCOMPONENTS
FEATURES FEATURESOPTiONS OPTiONS
Standard Features for all Control Boxes■■ Twist-to-release, illuminated LeD
eMeRGeNCY STOP button
■■ Labeled terminal block for field connections
■■ Fused and shafted Main Disconnect Switch (MDS)
■■ Fused 120VaC transformer for control voltage
■■ NeMa type 12/13 wall mount enclosure
■■ interlocked reversing contactor
■■ adjustable motor overload
■■ Brake relay provided for fast braking applications
■■ illuminated POWeR ON indicator
■■ Momentary eXTeND/ReTRaCT pushbuttons
Standard Features for all Control Boxes■■ Twist-to-release illuminated LeD eMeRGeNCY
STOP button
■■ Labeled terminal block for field connections
■■ Door mounted Main Disconnect Switch (MDS)
■■ NeMa type 12/13 wall mount enclosure
■■ electrical/mechanical interlocked motor starters
■■ adjustable motor overload
■■ illuminated POWeR ON indicator
■■ Momentary eXTeND/ReTRaCT pushbuttons
Additional Feature Options■■ illuminated eXTeND/ReTRaCT
pushbuttons
■■ MOTOR OVeRLOaD indicator
■■ Pendant controls
■■ Strobe/stack light alarm
■■ Maintained operations
■■ 230/575V available
■■ UL or cUL certifications
Additional Feature Options■■ Shafted interlocked MDS
■■ illuminated eXTeND/ReTRaCT pushbuttons
■■ MOTOR OVeRLOaD indicator
■■ Pendant controls
■■ Strobe/stack light alarm
■■ Maintained operation
■■ UL or cUL certifications
Three Phase Jog Controls Specifications
Motor Sizes VoltageEnclosure
DimensionsEnclosure Mounting
Up to 10 HP 460 VaC/3 PH/60 Hz 20"H x 16"W x 6"D Wall Mount
Single Phase Jog Controls Specifications
Motor Sizes
VoltageEnclosure
DimensionsEnclosure Mounting
Up to 1.5 HP
110/115/120 VaC/1 PH/ 50/60 Hz220/230/240 VaC/1 PH/ 50/60 Hz
16"H x 14"W x 6"D Wall Mount
MET
LISTED
US
Complies withUL 508AE212326
SN160ENCLOSED INDUSTRIAL CONTROL PANEL
No. A 06621181
®C UL US LISTED
MET
LISTED
US
Complies withUL 508AE212326
SN160ENCLOSED INDUSTRIAL CONTROL PANEL
No. A 06621181
®C UL US LISTED
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OPTIONAL ACCESSORIES & COMPARISON CHARTS
CONTROLCOMPONENTS
Optional Controls Accessoriesat Duff-Norton our goal is to provide high quality, reliable control solutions that get your application up and
running fast. Our optional accessories include the following: motor cables, VFD cables, sensor cables and cord
grips. With minimal time and effort, you’ll have all the parts you need to install your new control system.
Comparison Charts
Black
BrownBlue
White
encoder Cable
Strain Relief
Cord Grip
encoder cables are available in four standard lengths 4, 10, 15, and 20 meters. ask about custom lengths.
OPTiONaL aCCeSSORieSControl Accessory Options■■ encoder cables
■■ Limit switch cable
■■ Potentiometer cable
■■ VFD cable
■■ Motor cable
■■ Linear transducer cable
■■ Cord Grips
■■ Strain reliefs
■■ Switches - mechanical/ electrical
Servo - Linear
Transducer
Control Type - Feedback Device
0.60
0.50
0.40
0.30
0.20
0.10
0.00
Positioning / Synchronization Accuracy By Control Type and Feedback Device
Servo -Absolute Encoder
VFD -Linear
Transducer
VFD - Encoder
VFD -Potentiometer
Contactors -Linear Sensor
Contactors -Encoder
Contactors - Potentiometer
0.01 0.013 0.015 0.017
0.25
0.3
0.5
0.32
Potentio-meter
Device
Positioning Device Accuracy
Encoder Servo Linear Sensor
Acc
urac
yA
ccur
acy
(Inch
)
Selector Switch
Variable Speed Device
Variable Speed Device Flexibility
Speed Pot
HMI Entry
Flex
ibili
ty
Motor Contactors
Motor Control Device
Synchronization Device Accuracy
VFDs Servo Motors
Acc
urac
y
Note: accuracy is dependent on speed and type of actuator. The above chart is a general guideline for accuracy.
GlossaryHMI – Human Machine Interface. Typically a 4 – 10 inch color touch screen used as a central point for system input. HMis reduce the need for
multiple pushbuttons, indicators, and selector switches. HMis are extremely versatile and completely customizable. HMis relay information
about a systems i/O, status, status of switches and sensors, as well as specific fault messages. HMis reduce setup time, troubleshooting,
maintenance, and down time.
VFD – Variable Frequency Drives. VFDs or inverters are used to vary the speed of an electric aC or DC motor. VFDs can use single phase or
three phase aC input voltage to drive three phase aC motors. VFDs are extremely beneficial in applications where synchronization, positioning,
or variable speed is required. VFDs can be programmed to ramp up, accelerate, or ramp damp, decelerate, over a specific period of time.
PLC – Programmable Logic Controller. PLCs are controllers that utilize microprocessors to make quick calculations and control peripheral
devices. PLCs are often used to read analog inputs as well as encoder inputs. PLCs are flexible and easily allow for process changes as well
as equipment upgrades.
MDS – Main Disconnect Switch. MDSs are used to turn the facility service to a control panel on and off. MDSs can be locked out and tagged
out to keep personnel safe while maintenance is being performed.
E-Stop – Emergency Stop. e-Stops are typically an illuminated or non-illuminated pushbutton used to stop equipment in the case of an
emergency. e-Stops are hardwired to disconnect power to an electric motor(s) as well as de-energize control relays.
Terminal Strip – Terminal strips consist of several individual terminal blocks aligned in a row. Terminal blocks pass wires from one point in a
control panel to another point. Terminal blocks are extremely advantageous when wiring field installed devices such as encoders, motors, and
switches. Terminal blocks allow wiring of these devices to be terminated at the terminal block as opposed to being terminated at a PLC, VFD,
or motor contactor.
Panel Meter – Panel meters are used to display feedback from a number of input devices. Panel meters are digital displays that provide visual
indication of a devices current position. Panel meters use input from potentiometers, linear sensors, encoders, or other analog devices. The
signals are then scaled using the panel meter to display position in a meaningful value such as inches or percentage.
Types of feedbackIncremental encoders – incremental encoders provide digital pulses or counts back to a PLC or VFD. a PLC can be programmed to use encoder
pulses to synchronize, position, or vary the speed of an electric motor. incremental encoders can be mounted on limit switches, reducers, or
electric motors. incremental encoders offer a variety of different pulses per revolution (PPR). incremental encoders can provide as little one
pulse per revolution up to several thousand pulses per revolution.
Absolute encoders – absolute encoders work similarly to incremental encoders. Pulses or counts are monitored by a PLC or VFD. ethernet/iP
encoders communicate with a PLC over an ethernet cable. Unlike incremental encoders, absolute encoders do not lose position or counts
when power is cycled. There is no need to reference or home absolute encoders after a power cycle.
Potentiometers – Potentiometers provide a 0 – 10 VDC analog output signal. This analog signal can be used by a PLC to scale the position of
a device. Potentiometer feedback can be found in rotary or string type devices. Rotary potentiometers can be mounted on limit switches.
String type potentiometers are usually mounted to equipment. Potentiometers are useful when an extremely precise degree of accuracy is not
needed.
Linear Sensors – Linear sensors output a 0 – 10 VDC, or 4 – 20ma analog output signal. Like a potentiometer this analog signal can be used
by a PLC to scale and position or control an electric motor. Depending on the location of the linear sensor in an application, linear sensors
provide the highest degree of accuracy. Linear sensors come in a variety of configurations. Rod, magnetic, and non-contact sensors are most
frequently used.
Load Cells – Load cells are feedback devices that detect load. Load cells can detect load in tension, compression, or both tension and
compression. Load cells are ideal for applications where load detection or load processes are needed. Load cells like linear sensors come in a
variety of configurations such as pancake, donut, or pin style.
Types of motionJogging – Jogging motion is the simplest and most common type of motion. Jogging an electric motor can be accomplished in two ways,
momentary or maintained. Momentary jogging dictates continual input from a user. The user must press and hold a pushbutton to jog the
motor in one direction or the other. Maintained jogging is accomplished through a one-time command such as pressing and releasing a
pushbutton. Momentary jogging stops when the user releases a pushbutton. Maintained jogging stops when the user presses the stop
pushbutton or the motor reaches a limit switch.
Positioning – Positioning applications move an electric motor to a specific position. Positioning can be accomplished using an aC, DC, or servo
motor along with a feedback device. Servo motors and certain aC and DC motors have encoders mounted on the motor. These devices run
in a closed loop to accurately move the electric motor to a desired position. Positioning devices typically use a HMi and input from a user to
position the electric motor.
Synchronization – Synchronization motion allows two or more electric motors to be moved in the same direction together. Synchronization motion
is most useful in applications that cannot be mechanically coupled. Synchronization provides a means to electrically couple the electric
motors. Synchronization uses positional feedback from multiple motors to hold a tolerance between the motors. Synchronization motion uses
multiple types of feedback as well as motor control devices.
Variable Speed – Variable speed motion allows an electric motor to be moved at various speeds. Variable speed applications are common in
applications where the manufacturing process changes frequently. Variable speed applications are useful in applications where the motor
needs to start slowly and ramp up to speed. HMis, speed pots, and selector switches can be used to vary the speed of an electric motor.
HMis provide the most flexibility by allowing the user to input a desired speed.