The AT6701B stepper motor drive power supply is a fully programmable high-performance device designed by Changzhou Onmeas Precision Instruments. It is controlled by a high-performance ARM microprocessor and features a 5-inch high-resolution capacitive touch screen with a full numeric keypad and the Onmeas ATOS operating system for clearer display and more convenient operation.
The instrument is designed for the development, production testing and burn-in testing of micro stepper motors and integrates a DC regulated voltage and current power supply, computer signal processing and drive circuits. The AT6701B provides single-channel testing (multi-channel can be customised on request) and supports forward and reverse operation, multiple phase sequences and multiple working modes.
| Parameter | AT6701B | AT6702B | AT6703B | AT6704B | AT6705B | |
|---|---|---|---|---|---|---|
| Basic Specifications | ||||||
| Channels | 1 channel | - | ||||
| Voltage Adjustment Range | 0~36.0V (adjustable) | - | ||||
| Current Adjustment Range | 0~2A (adjustable) | - | ||||
| Pulse Frequency Range | 1—9999Hz (meeting test requirements from low to high speed) | - | ||||
| Voltage Measurement Accuracy | 0.5% ±1 digit | - | ||||
| Current Measurement Accuracy | 0.5% ±1 digit | - | ||||
| Frequency Accuracy | <1% | - | ||||
| Main Functions | ||||||
| Frequency | The power supply supports adjustment of input pulse frequency for controlling motor speed. The frequency range can be set according to actual requirements for stepless speed control. | - | ||||
| Mode | Provides multiple operation mode selections: single step, continuous, preset count, counting, forward/reverse, allowing users to switch flexibly according to precision and torque requirements. | - | ||||
| Phasing Sequence | Provides 3 phasing sequence modes (1-1, 1-2, 2-2) for flexible adaptation to different motor types. | - | ||||
| Pulse Count | The motor rotation angle can be precisely controlled by input pulse quantity, with each pulse corresponding to a specific step angle, enabling high-precision position control. | - | ||||
| 5 Comparator Function (Sorting Function) | Built-in comparator for detecting current feedback signals, ensuring current in motor windings remains stable within the set range, improving drive efficiency and protecting circuit safety. | - | ||||
| General Parameters | ||||||
| Dimensions | Instrument Dimensions | 355 (W) x 140 (H) x 286 (D) mm | - | |||
| Package Dimensions | - | |||||
| Weight | Net Weight | 5 kg | - | |||
| Gross Weight | - | |||||
| Power Requirements | Voltage: 100~240VAC; Frequency: 50Hz/60Hz | - | ||||
| Interface | RS232 / RS485 / LAN / USB interfaces | - | ||||
| Communication Protocol | SCPI and Modbus (RTU) | - | ||||
| Other | 5-inch TFT-LCD true color display, keyboard lock, screenshot function; Accessories: ATL509 test cable, power cord | - | ||||