BAI20-320 Aerotech BA-Intellidrive Single-Axis Servo Indexer

Description

Product Introduction

The Aerotech BAI20-320 is a single-axis servo amplifier and indexer belonging to the robust BA-Intellidrive (BAI) product family. Designed for high-precision industrial automation machinery, this hardware controller processes motion commands from a central host controller and translates them into regulated high-voltage power outputs to drive brushless servo motors with exact positional accuracy.

Within complex motion platforms, the BAI20-320 combines internal power regulation, an integrated control board, and high-frequency switching architecture to maintain tight velocity and torque loops. Its durable analog and digital interface configuration makes it a trusted drop-in replacement for aging precision stages, laser machining cells, and automated positioning equipment without requiring complete controller overhauls.

Key Technical Specifications

Application Scenarios & The “Trench” Experience

Picture this: It is 3:30 AM during a high-speed precision machining run when an automated wafer inspection stage faults out with a severe drive overcurrent error. Troubleshooting isolates the failure to a blown output stage on an aging Aerotech servo amplifier that has run continuously for over a decade. Every hour the inspection cell sits idle halts downstream semiconductor shipments, costing thousands in delay penalties. You don’t have time to re-engineer the motion control topology or wait months for a modern drive redesign. You pull a pre-tested, certified surplus BAI20-320 off the shelf, verify the jumper configurations and “D” connector wiring, slide it into the cabinet, and re-enable the axis to resume production before morning shift rotation.

• Semiconductor Manufacturing & Wafer Inspection: Driving high-accuracy X-Y positioning stages under strict thermal and velocity tolerances.
• Laser Micro-Machining & Cutting: Regulating smooth, jitter-free axis movement for high-precision optical path routing.
• Automated Precision Metrology: Controlling closed-loop positioning axes on optical measurement and testing equipment.

BAI20-320

BAI20-320

Transparency SOP: Quality Assurance & Testing

We don’t just ship boxes; we test them on actual Aerotech motion test benches. Every surplus BAI20-320 unit goes through a strict verification protocol before leaving our warehouse:

1. Inbound Inspection: Physical check for chassis integrity, connector pin alignment, and OEM label legibility.
2. Low-Voltage Bench Test: Applying 24V control power and low-voltage bus power without a motor connected to verify status LED handshakes and clear internal fault registers.
3. Dynamic Load Testing: Connecting to a matched brushless test motor to verify PWM modulation stability, current loop bandwidth, and thermal dissipation under load.
4. Firmware & Revision Logging: Verifying internal board revisions and logging serial numbers against QA records.
5. Final QC & Anti-Static Packaging: Sealed in anti-static moisture barrier bags with high-density ESD foam cushioning.

The Veteran’s Tech Trap Guide (Crucial Value-Add)

• ⚠️ Always Perform a Low-Voltage Startup: Never apply full 240 VAC main power on a freshly installed drive without first verifying control power and checking for fault codes on low-voltage bus checks. Rushing power-up can destroy output IGBTs if a shorted motor winding exists.
• ❗ Verify Current Limits: Ensure the amplifier’s internal current limit potentiometer or software parameters match your motor’s continuous and peak rating. Setting limits too high will overheat your motor windings during rapid acceleration cycles.
• ⚠️ Check Feedback Shielding: Always ensure resolver or encoder feedback cable shields are terminated correctly to the designated chassis ground lug. Floating shields will pick up electrical noise from nearby switching inverters, causing erratic velocity jitter.

Frequently Asked Questions (FAQ for Conversion)

Q: Is the BAI20-320 still in active production by Aerotech?

A: No. Aerotech has officially discontinued the BA-Intellidrive (BAI) series. Finding direct factory-new units requires sourcing certified new surplus inventory.

Q: Can I use the BAI20-320 with third-party servo motors?

A: Yes, provided the motor’s voltage, winding impedance, and feedback type (resolver/encoder) match the amplifier’s specifications. Always verify commutation parameters before enabling the axis.

Q: Are these units brand new or refurbished?

A: Our inventory consists primarily of New Surplus and Factory Sealed stock sourced from industrial automation liquidations. Every unit undergoes live bench testing prior to shipment.

Q: What warranty is included with purchase?

A: Every BAI20-320 ships with our comprehensive 12-month replacement warranty.