UIrobot UIM24008 User manual

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UIM24002 / UIM24004 / UIM24008

UI Robot Technolo

gy

Co. LTD M24020100321EN

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UIM24002 / UIM24004 / UIM24008

UI Robot Technolo

gy

Co. LTD

M24020100321EN

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Features

Â Miniature size 42.3mm*42.3mm*13.5mm (L*W*H)

Â Integrally designed to fit onto motors seamlessly, as well as work standalone

Â Wide range input voltage 10-40VDC

Â Max 2A / 4A / 8A adjustable output current

Â 1 to 16th micro step resolution

Â Dual full H-bridge with PWM constant current control

Â Enable/shutdown input for power saving

Â Optoisolated inputs with common anode

Â Die-cast aluminum enclosure, improve heat radiation and durability

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Description

UIM240xx Miniature Stepper Motor Controller is a series of miniature, high performance

stepper motor controller. They can be mounted onto 42 / 57 / 86 / 110 series stepper

motor seamlessly through corresponding flanges. The thickness of these controllers is

less than 14 mm. UIM24002 is capable to provide 0-2A adjustable current. UIM 24004 is

capable for 1.6-4A adjustable current output and UIM24008 is capable for 2A-8A

adjustable current output. Their mixed-decay current control reduces the back-EMF

effect under high motor speed and improves the performance. Except that UIM24002

takes 10-35VDC input, UIM240xx series controllers can work on 12 to 40VDC input.

Enclosure is made of die-cast aluminum which provides a rugged durable protection and

improves the heat dissipation.

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UIM24002 / UIM24004 / UIM24008

Miniature Stepper Motor Controller

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UIM24002 / UIM24004 / UIM24008

UI Robot Technolo

gy

Co. LTD M24020100321EN

Terminal Description

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Screw Terminals

Terminal

No./ColorDescriptionMINNOMMAXUNIT

1/RedV+SupplyvoltageUIM24004‐812 40 VDC

UIM240021035

2/BlackGND Supplyvoltageground  0 VDC

3/WhiteVccOpto‐couplercommonanode  5(1) VDC

4/GreenDIRDirectioninput(2) GND Vcc VDC

5/BlueSTEP Steppingpulseinput(3) GND Vcc VDC

6/YellowSHDN Shutdownthecontroller(4) GND Vcc VDC

Note:

(1) Pleasereferto“opticallyisolatedinputinterface”sectionfordetails.

(2) Inputisconsideredhighlevelifthisterminalisnotconnected.

(3) Low‐levelpulsedurationshould>8μs.Maximumpulsefrequencyis50KHz.

(4) Anactivelow‐levelinputshutsdownpowersupplytothemotor.High‐levelinputorleftopenmakesthe

controllerfullyworking.Whenawakenfromshutdownmode,wait1millisecondbeforesendingpulse.

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Motor Wiring Pads

Pad A + / A- (at the bottom of the controller): Connect to the stepper motor phase A

Pad B + / B- (at the bottom of the controller): Connect to the stepper motor phase B

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DIP Switch

GND Vcc DIR

V+

Phase B

Phase A

B- B+ A+ A-

STEP SHDN

Toavoidlossofterminal

screws,pleasealwayskeep

screwstightened.

Note:Toavoiddamagingthecontroller,makesurethephasewindsare

connectedcorrectly.Resistancebetweendifferentphases’leadsisusually>

100KΩ.Resistancebetweendifferentphases’leadsisusually<100Ω.

!

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UIM24002 / UIM24004 / UIM24008

UI Robot Technolo

gy

Co. LTD

M24020100321EN

Typical Application

UIM240xx controller’s wiring is very straightforward as shown in following Figure.

Terminal 6 (SHDN) can be left open if offline is not needed.

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Optically Isolated Input Interface

UIM240xx controllers’ logic control inputs are all optically isolated. All opto-couplers

share one common anode (Vcc) as shown in above schematic diagram. Typically, Vcc is

5V. However, 3.3V or voltages higher than 5V are also acceptable, so long as the current

through the opto-coupler’s emitter is between 5~20mA.

Should a voltage higher than 5V be applied to Vcc, an additional resistor is needed for

every terminal to ensure that the current through each emitter does not exceed 20mA.

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UIM240xx

Stepper Controller

10~40VDC

StepperMotor

A+ A- B+ B-

1

2

DC+

DC‐

UserDevice

3.3~5V

Direction

Pulse

SHDN

Vcc

5

4

6

3

UIM240xxController

+

‐

Vcc

User

Device

500

Ω

5~20mA

Additional

Resistor

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UIM24002 / UIM24004 / UIM24008

UI Robot Technolo

gy

Co. LTD M24020100321EN

Characteristics

Absolute Maximum Ratings

SupplyVoltage40VDC（UIM24002is35VDC）

StoreTemperature‐40℃～+125℃

WorkingTemperature‐20℃～+85℃

Workingunderenvironmentexceedingmaximumvaluecoulddamagethecontroller

Electrical Characteristics（Ambient Temperature 25℃）

SupplyPowerVoltage10V～40VDC（UIM24002is8V～35VDC）

MotorOutputCurrentMax2A/4A/8Aperphase(Adjustablethroughon‐boardtrimmer）

DrivingModePWMconstantcurrent

SteppingResolutionFull‐step,half‐step,quarter‐step,andsixteenth‐step

InsulationResistance>100MΩ

DielectricStrength0.5KVinoneminute

Communication (Ambient Temperature 25℃）

ParallelCommunication3‐wireinterface:Pulse,Direction,Shutdown

MicroStepResolution1,2,4,16setthroughon‐boardDIPswitch

Environment Requirements

CoolingFreeAir

Working

Environment

EnvironmentAvoiddust,oilmistandcorrosivegases

Temp erature‐20℃～+85℃

Humidity<80%RH，ncondensation,nofrosting

Vibration3GMax

StorageTemperature‐40℃～+125℃

Size and Weight

Size42.3mmx42.3mmx13.5mm(L*W*H)

Wight0.1kg

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UIM24002 / UIM24004 / UIM24008

UI Robot Technolo

gy

Co. LTD

M24020100321EN

Functional Description

Supply Voltage

UIM240xx controllers accept a wide range input voltage from 12 to 40VDC. (UIM24002

accepts 10~35VDC) In general, higher supply voltage improves motor performance under

high speed situation, but also increases the power loss and temperature raise.

Adjust Output Current

UIM24002 / UIM24004 / UIM24008 are capable of providing 2A / 4A / 8A per phase

maximum output current respectively. In specific application, the peak output current

needs to be adjusted to meet the rated motor current. A trimmer (potentiometer) is

provided to serve this purpose at the bottom of the controller, as shown in the following

figure. Measuring the mapped voltage (Va) when tuning the trimmer provides a easy way

to set the output current.

For UIM24002, a mapped voltage of 0 - 4V proportionally represents 0 ~ 2A.

For UIM24004, a mapped voltage of 0 - 4V proportionally represents 1.5 ~ 4A.

For UIM24008, a mapped voltage of 0 - 4V proportionally represents 3.0 ~ 8A.

Please note that the controller needs to be powered before the mapped voltage Va can be

measured. (The motor is not required to be connected at this time.)

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B‐B+A+A‐

BottomSide

Voltmeter

10~40VDC

DC+

DC‐

Trimmer

MappedVoltage

Va

Note:Vaexceed4Vwillbeinternallyclampedto4V.Vahigherthan4V

willincreasethepowerconsumptionandtemperature.

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UIM24002 / UIM24004 / UIM24008

UI Robot Technolo

gy

Co. LTD M24020100321EN

Set Micro Step Resolution

The micro step resolution is set by the DIP switch as shown in following figure.

UIM240xx controller can provide complete micro-stepping control at full-step, half-step,

quarter-step, and sixteenth-step resolutions.

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Dimension

Unit：mm

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Actuator

1/4 Step

ON

1 2

1/16Step

ON

1 2

Hal

f

‐Step

ON

1 2

Full‐Step

ON

1 2

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Page|9

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UIM24002 / UIM24004 / UIM24008

UI Robot Technolo

gy

Co. LTD

M24020100321EN



Installation of UIM240xx Controller

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4‐M3x10

UIMController

HeatSinkCompound

FlangeScrews

Flange

WindingLeads

(SoldertoController)

UIrobot UIM24008 User manual

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