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1.UIM240xx CNC Stepper driver, 2.PWM constant current, 2 A /4A/8A., 3.Miniature Size 42.3mm*42.3mm*13.5mm - details see: https://www.machineto.com/cnc-stepper-driver-for-cnc-milling-machine-or-cnc-router-10271441

UIM240xx CNC Stepper driver Overview

UIM24002/24004/24008 parallel port stepper driver are a series of miniature, high performance stepper motor driver. They can be mounted onto NEMA17, 23, 34 and 42stepper motorsseamless through corresponding flanges. The thickness of these stepper motor driver is less than 14mm, UIM 24002 is capable to provide 0.5-2A adjustable current. UIM 24004 is capable for 1.6-4A adjustable current output. UIM24008 is capable for 2A-8A.adjustable current output. Their mixed-decay current control reduces the back-EMF effect under high speed running condition and improves the performance. Except the UIM24002 takes 10-35VDC input, UIM240xx series stepper motor driver can work with 12 to 40VDC input.. Enclosures of the UIM240xx stepper driver are made of die-cast aluminum which provide a rugged and durable protection and improve the heat dissipation..

Absolute Maximum Rating

Supply Voltage 12~40VDC (10~35VDC for UIM24002)

Current input at logic pins: +/- 30mA

Storage Temperature -20 - +125

Operating Temperature -20 - +85

Note: Stresses beyond these listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

Electrical Characteristics (Ambient Temperature Ta = 25)

Supply Voltage: 12-40V DC (10~35VDC for UIM24002)

Output Pahse Current: Max 2A/4A/8A⁽¹⁾

Current Control: Constant, PWM control

Microstepping: Full-, Half-, Quarter- and 16^th-step⁽²⁾

Photocoupler Isolation voltage: 2500 Vrms (min)

Photocoupler Input current: MAX +/- 45mA

Note:

(1) adjustable through on-board POT

(2) adjustable through on-board DIP switch

Communication: 3-wire, Step, Direction, and Enable signals

Handling, Storage and Size:

Cooling Type: Free air

Working Environment: Free of heavy dust, oil mist and corrosive gas

Ambient Tempareture: -20 +50

Humidity: Lower than 80%RH, no condensation and frost

Vibration: 1G Max

Storage Tempareture: -20 - +125

Dimensions: 42.3mm*42.3mm*13.5mm

Weight: 0.1kg

Micro-stepping Motor Driver

Further morestepper controller with rs232andcan bus stepper controllerand smart self-pulsing stepper controller are available.