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ID SRAC Series Two Phase AC Stepper Motor Drives
Advanced Current Control, Torque Ripple Smoothing, Anti-Resonance, Microstep Emulation
● Advanced Current Control
● Torque Ripple Smoothing
● Anti-Resonancelt
● Microstep Emulation
● Torque Ripple Smoothing
● Anti-Resonancelt
● Microstep Emulation
Brand Name: MOONS'
Price:
USD
325.0
-
385.0
EA
Payment Methods
Buyer Protection:
Free Exchange 
■ Description
SRAC series ac stepper motor drives are based on current PID control algorithm design cost-effective segment type drive, is a compact, powerful digital stepper motor drives.And can be used to drive the ac power input, compared with traditional dc power input type of drive, has excellent high-speed characteristics;Large torque output;Low noise;Low vibration, etc.Each drive has a variety of parameter setting, through dial switch or rotary switch can quickly set the required parameters.
■ Features
Anti-Resonance / Electronic Damping
Step motor systems have a natural tendency to resonate at certain speeds. The SRAC drives automatically calculates the system’s natural frequency and applies damping to the control algorithm. This greatly improves midrange stability, allows for higher speeds, greater torque utilization and also improves settling times. Delivers better motor performance and higher speedsMicrostep Emulation
With Microstep Emulation, low resolution systems can still provide smooth motion. The drive can take low resolution step pulses and create fine resolution motion. Delivers smoother motion in any application
Torque Ripple Smoothing
All step motors have an inherent low speed torque ripple that can affect the motion profile of the motor. By analyzing this torque ripple the system can apply a negative harmonic to counter this effect.This gives the motor much smoother motion at low speed. Produces smoother motion at low speedsCommand Signal Smoothing
Command Signal smoothing can soften the effect of immediate changes in velocity and direction, making the motion of the motor less jerky. An added advantage is that it can reduce the wear on mechanical components. Improves smoother system performance
Auto Setup & Self Test
At start-up the drive measures motor parameters, including the resistance and inductance,then uses this information to optimize system performance. The drive can also detect open and short circuits.■ Model Numbering System
■ Ordering Information
| Model | Current | Voltage | Selectable Microstep | Selectable Current |
|---|---|---|---|---|
| SRAC2 | 0.6-2.5A | 80-265VAC | 16 settings | 8 settings |
| SRAC4 | 0.4-4.0A | 80-265VAC | 16 settings | 16 settings |
| SRAC8 | 0.4-8.0A | 80-265VAC | 16 settings | 16 settings |
Specification
| General Specification | |
|---|---|
| Speed Range | Up to 50 rps |
| Operating Temperature | 0 - 40°C |
| Vibration Resistance | 5.9m/s² maximum |
| Storage Temperature | -10 - 70°C |
| Heat Sinking Method | Natural cooling or fan-forced cooling |
| Atmosphere | Avoid dust, oily mist and corrosive air |
| Mass | SRAC2/3SRAC2: Approx. 0.8kg SRAC4/SRAC8/3SRAC8: Approx. 1.2kg |
| Certification | RoHS ，CE (EMC): EN 61800-3:2004 ，CE(LVD): EN61800-5-1:2007 |
| Features | |
| Idle Current | Automatic idle current reduction to reduce heat after motor stops moving for 1 second Dip switch selectable, 4 selection 25%,50%,70%,90% for SRAC4/8, 2 selection 50%,90% for SRAC2/3SRAC2 |
| Anti-Resonance | Raises the system-damping ratio to eliminate midrange instability and allow stable operation throughout the speed range of the motor, dip switch selectable load inertia |
| Control Mode | Dip switch selectable Step&Dir or CW/CCW Pulse(SRAC2 和 3SRAC2 need internal jumpers) |
| Inupt Signal Filter | Digital filters prevent position error from electrical noise on command signals, Dip switch selectable 2MHz or 150KHz |
| Microstep Emulation | Switch selectable microstep emulation provides smoother, more reliable motion |
| Motor Database | Rotary switch easily selects from many popular motors |
| Self Test | Switch selectable automatic self test, while self test, drive will rotate the motor back and forth, two turns in each direction. |
| Protection | overvoltage, undervoltage, over current, motor automatic detection Open circuit |
| Fault Output | Optically isolated,30VDC max, 100MA max |
SRAC2
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Power Supply | 80 | — | 265 | VAC |
| Output Current (Peak) | 0.6 | — | 2.5 | Amps |
| Cost current of digital input signal | 6 | — | 15 | mA |
| Step Frequency | 2 | 10 | 2M | Hz |
| STEP minimum pulse width | 250 | — | — | ns |
| Direct pulse width | 80 | — | — | ns |
| Low-voltage protection point | — | 75*/135* | — | VAC |
| Over-voltage protection point | — | 145*/295* | — | VAC |
| Input Signal Voltage | 4.0 | — | 28 | VDC |
| Initialization time | — | — | 2.5 | S |
| OUT maximum output current | — | — | 100 | mA |
| OUT maximum voltage | — | — | 30 | VDC |
*Note: When the AC input switch is selected on 115V, under voltage protection point is 75VAC, over voltage protection point is 145VAC. When the input switch is selected on 230V status, under voltage protection point is 135VAC, over voltage protection point is 295VAC. | ||||
SRAC4
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Power Supply | 80 | — | 265 | VAC |
| Output Current (Peak) | 0.4 | — | 4.0 | Amps |
| Cost current of digital input signal | 0.4 | — | 8 | Amps |
| Step Frequency | 2 | — | 2M | Hz |
| STEP minimum pulse width | 250 | — | — | ns |
| Direct pulse width | 80 | — | — | ns |
| Low-voltage protection point | — | 80 | — | VAC |
| Over-voltage protection point | — | 295 | — | VAC |
| Input Signal Voltage | 4 | — | 28 | VDC |
| Initialization time | — | — | 2.5 | S |
| OUT maximum output current | — | — | 100 | mA |
| OUT maximum voltage | — | — | 30 | VDC |
SRAC8
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Power Supply | 80 | — | 265 | VAC |
| Output Current (Peak) | 0.4 | — | 8.0 | Amps |
| Cost current of digital input signal | 6 | 10 | 15 | mA |
| Step Frequency | 2 | — | 2M | Hz |
| STEP minimum pulse width | 250 | — | — | ns |
| Direct pulse width | 80 | — | — | ns |
| Low-voltage protection point | — | 80 | — | VAC |
| Over-voltage protection point | — | 295 | — | VAC |
| Input Signal Voltage | 4 | — | 28 | VDC |
| Initialization time | — | — | 2.5 | S |
| OUT maximum output current | — | — | 100 | mA |
| OUT maximum voltage | — | — | 30 | VDC |
■ Dimensions (Unit : mm)
□ SRAC2
□ SRAC4/8
■ Communication Port
□ SRAC2
□ SRAC4/8
2D Drawings
| Title | Type | Size（KB） | Download |
|---|---|---|---|
| SRAC8_2D Drawings.pdf | 57 | ||
| SRAC4_2D Drawings.dwg | DWG | 337 | |
| SRAC4_2D Drawings.pdf | 58 | ||
| SRAC8_2D Drawings.dwg | DWG | 341 | |
| SRAC2_2D Drawings.pdf | 91 | ||
| SRAC2_2D Drawings.dwg | DWG | 321 |
3D Model
| Title | Type | Size（KB） | Download |
|---|---|---|---|
| SRAC4 3D.step | STEP | 603 | |
| SRAC8 3D.STEP | STEP | 5021 | |
| SRAC2 3D.stp | STEP | 5191 |
Brochure
| Title | Type | Size（KB） | Download |
|---|---|---|---|
| SRAC Series Brochure.pdf | 1417 |
User Manual
| Title | Type | Size（KB） | Download |
|---|---|---|---|
| SRAC8_UserManual_EN20210610.pdf | 5985 | ||
| SRAC4_UserManual_EN20210610.pdf | 5309 | ||
| SRAC2_UserManual_EN20210610.pdf | 4831 |
Specifications
| Title | Type | Size（KB） | Download |
|---|---|---|---|
| SRAC8_Specifications.pdf | 1022 | ||
| SRAC4_Specifications.pdf | 1071 | ||
| SRAC2_Specifications.pdf | 812 |
Catalog
| Title | Type | Size（KB） | Download |
|---|---|---|---|
| Stepper Products General Catalog_20180531.pdf | 27992 |
Quick Start
| Title | Type | Size（KB） | Download |
|---|---|---|---|
| SRAC8_Quick Start.pdf | 641 | ||
| SRAC4_Quick Start.pdf | 679 | ||
| SRAC2_Quick Start.pdf | 752 |
Certification
| Title | Type | Size（KB） | Download |
|---|---|---|---|
| ROHS declaration-2024-A0.pdf | 522 | ||
| CE Certification for SRXAC&SRAC.pdf | 1660 |
Software
| Title | Type | Size（KB） | Download |
|---|---|---|---|
| Stepper Suite Setup 4.0.24.0316.zip | ZIP | 22840 |
Delivery & Packaging
Ensure your ordered products are always safely packaged from easy click to fast delivery to your handsProfessional Product Label
Considering all possible harsh application environments, MOONS' specially designed labels for each product, which pass water-resistance test, durability rub test, high temperature resistance and corrosion resistance tests.Besides, our product labels are attached with QR code linking to product details, which is convenient for clients to view the detail product page with their mobile phones.
Note: This label design is suitable for products of stepper motor.
(Professional packing box and unique appearance design)
(Single item packed with EPE)
(Multi-products packed with another box)
Safely Packaging
In order to ensure your shipments withstand the long trip and arrive safely and intact, MOONS' specially designed Individual package to pass the drop test with its stable structure.Besides，the package is made from recyclable materials, providing you with professional safety delivery.
Whether just single item or multi-products the clients buy, all products are packed twice to avoid the damage further.
Shipping Visualization
For each case, products are carefully packed by experienced warehouse staff and the key processes are recorded by photos, which are then posted on our website, so that clients could clearly know the packing process and logistics status after placing order.
(Product in the box)
(Add the invoice)
(Label the commodity)
(The logistics waybill attached)
Fast Delivery
Fast Cross-Border DeliveryMOONS' chooses DHL as our main international express shipping partner. As the world's leading logistics specialist, DHL provides our customers with fast and professional inter- national door-to-door delivery service.
Estimated Delivery Time: e.g. China-USA major cities 3 business days.
Professional
Warehouse Management
