Product Description

UIM**3 self-pulsing stepper motor controller

work standalone

UIM****1 for **1A phase current stepper motor;

UIM****2 for **2A phase current stepper motor;

self-pulsing,work standalone, starts working when powered on, no need for PLC etc.;

speed adjustable either through on-board trimmer, or through user's own potentiometer;

*0 - *0VDC voltage, Max 2A adjustable phase current (UIM****2);

*6th micro-stepping;

Dual full H-bridge with PWM constant current control;

Switch control run/stop, direction, enable/shutdown;

Embedded microcontroller;

Acceleration function, 0.*5 - ***0 RPM.

DETAILS:

Miniature Integral Design
− Miniature size *2.3mm x *2.3mm x *6.5mm (L x W x H)
− Integrally designed to fit onto motors seamlessly, as well as work standalone
− Die-cast aluminum enclosure, improved heat dissipation and durability

Motor Driver Features
− *0 - *0VDC voltage, Max 2A adjustable phase current
− *6th micro-stepping
− Dual full H-bridge with PWM constant current control

Control Features
− Embedded microcontroller
− Self pulse generation, automatic run on power-up
− Speed control through on-board trimmer 0.*5 - ***0 RPM (UIM****2A)
− Speed control through external potentiometer 0.*5 - ***0 RPM (UIM****2B)
− Speed control through 0 - 5V voltage 0.*5 - ***0 RPM (UIM****2B)
− Acceleration function
− Switch control run/stop, direction, enable/shutdown
− Automatic current reduction / power saving

Description

UIM****2 stepper motor controller is a microprocessor embedded, voltage control, miniature stepper motor controller.
With the UIM****2, the motor speed can be controlled by an analog voltage in three optional ways:
1) the on-board trimmer, 2) an external potentiometer or, 3) an external voltage. Run/stop, direction, high/low speed range and, enable/disable can be controlled simply by shorting the corresponding terminal to the ground. UIM****2 controllers can run the motor without user control device.

The microprocessor of the UIM****2A/B is capable to ramp up the current speed to the desired speed within 0.3 seconds, even when the speed control voltage is changing. This feature makes the sudden increase of the desired speed become possible.

UIM****2 can provide 0 - 2A adjustable phase current. Their mixed-decay current control reduces the back-EMF effect under high motor speed and improves the performance.

UIM****2 can be mounted onto NEMA *7 / *3 series stepper motor seamlessly through adapting flanges. The enclosure is made of die-cast aluminum which provides a rugged durable protection and
improves the heat dissipation.