WhatsApp: +86 16626708626
Email: 
Phone: +86 16626708626Description
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Type | Single-axis Intellidrive amplifier |
| Motor Compatibility | Brush or brushless |
| Control Modes | Indexer, Clock & Direction |
| Integration | Amplifier + control board + internal power supply |
| Series Family | BAI 10/20/30 (and higher current variants) |
| Typical Applications | Precision motion, positioning systems |
| Status | Legacy / limited availability |
Exact continuous current, voltage rating, and peak current for the -320 variant should be verified against the unit nameplate or original Aerotech documentation, as published details vary by specific hardware revision.
4. Product Introduction
The Aerotech BAI20-320 belongs to the BA-Intellidrive family of single-axis servo amplifiers. It combines a power amplifier, control board, and internal power supply into one package capable of driving either brush or brushless motors.
Engineers use this unit when they need integrated indexing or clock-and-direction control without a separate external drive and controller. It remains a practical spare for existing BA-series motion systems in precision positioning, automation, and test equipment where the original amplifier has failed.
BAI20-320
BAI20-320
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No motor motion | Drive disabled, no power, or command missing | ✅ High | Verify supply voltage and Enable signal | Confirm power and command inputs first |
| Motor faults or over-current | Wiring short, mechanical bind, or internal fault | ✅ High | Measure motor resistance; check for mechanical obstruction | Clear bind or replace drive if internal fault confirmed |
| Position error or loss of steps | Feedback or tuning issue | ✅ High | Inspect encoder/resolver connections | Check feedback cables and shielding |
| Intermittent operation | Loose connectors or noise | ✅ Medium | Reseat all connectors; verify grounding | Improve cable routing and grounding |
| Drive does not respond to clock/direction | Interface mismatch | ✅ High | Verify signal levels and polarity | Match controller output to drive input specs |
If the fault persists, record LED status (if present), supply voltage, and command signal presence, then contact technical support with connection photos.
6. Frequently Asked Questions (FAQ)
Q: Is the BAI20-320 still in production?
A: Availability is limited. New-surplus and tested refurbished units are the primary supply path for maintaining existing BA-Intellidrive installations.
Q: What motors does it support?
A: Both brush and brushless motors. Confirm motor current and voltage ratings match the specific amplifier variant.
Q: Does it require external software for setup?
A: Older BA-Intellidrive units often used Aerotech BAI DOS or related configuration tools. Have the original parameters available when replacing the unit.
Q: Can it operate in pure clock-and-direction mode?
A: Yes. The series supports both indexer and clock-and-direction operation.
Q: Is an external power supply required?
A: The BAI design includes an internal power supply. Confirm the exact input voltage requirements on the unit nameplate.
Q: Can I hot-swap this amplifier?
A: No. Always remove power and disable the axis before connecting or disconnecting the motor or control cables.
Q: Why choose a tested refurbished unit?
A: These integrated drives are no longer widely stocked as new. Fully tested units restore axis capability quickly while carrying a warranty.
