Description
Product Overview
The Oriental Motor ASD12C-S and ASD24A-A are advanced closed-loop stepper motor drivers engineered for the AlphaStep series. Utilizing proprietary rotor position detection technology, these drivers eliminate the risk of missed steps (out-of-step phenomenon) inherent in traditional open-loop systems. The control circuit dynamically switches to closed-loop mode during abrupt load fluctuations, ensuring continuous operation and precise positioning without the need for external sensors.
Technical Specifications
Manufacturer: Oriental Motor
Model Numbers: ASD12C-S, ASD24A-A
Product Type: Closed-Loop Stepper Motor Driver (AlphaStep)
Input Voltage (ASD12C-S): Single-Phase 200-230 VAC ±15%, 50/60 Hz
Input Voltage (ASD24A-A): Single-Phase 100-115 VAC ±15%, 50/60 Hz
Control Method: Closed-loop microstepping
Maximum Input Pulse Frequency: 250 kHz
Positioning Accuracy: ±3 arc minutes (0.05°)
Operating Temperature: 0 °C to +50 °C
Ambient Humidity: 85% or less (non-condensing)
Protective Functions: Overload, Overvoltage, Undervoltage, Overspeed, Sensor Error
Weight: 0.8 kg
Certifications: CE, RoHS, UL (cULus)
Operational Logic & Architecture
The ASD series drivers feature a built-in sensor interface that continuously monitors the motor shaft position. Under normal operational loads, the driver functions in open-loop mode to maximize responsiveness. Upon detecting a position deviation exceeding 1.8 degrees, the internal logic instantly transitions to closed-loop control, applying maximum torque to correct the discrepancy. This hybrid architecture provides the high-speed synchronization of a stepper motor with the reliability of a servo system.
Industrial Application
These drivers are critical for high-speed indexing applications, optical inspection machinery, and precision semiconductor wafer handling equipment. In environments where sudden load variations occur, the ASD12C-S and ASD24A-A ensure zero loss of synchronism, preventing catastrophic alignment failures in multi-axis robotic arms and automated dispensing systems.
Procurement & Lifecycle Value
Sourced through Original Engineering channels, these drivers guarantee exact Technical Compatibility with existing Oriental Motor AlphaStep configurations. Standardized integration minimizes downtime during control panel retrofits. Contact our logistics team for current Lead Time availability and global shipping schedules.
Key Attributes
Application: Electronic Equipment
Material: Aluminum, Plastic, Steel
Motor Type: Universal
Place of Origin: Guangdong, China
Model Number: ASD12C-S ASD24A-A
Brand Name: Oriental Motor
Product name: Control Circuit
Color: Picture Shown
Warranty: Used parts is 3 months, new parts is 1-year
Condition: Original
Feature: Easy To Operate
Shipping By: UPS, DHL, FEDEX, TNT And EMS
Payment term: TT, Western Union, MoneyGram
Service: 24 Hours Online Service
Packaging: Standard Original Packing
Quality: 100% Testing
Packaging and Delivery
Selling Units: Single item











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