Description
Key Technical Specifications
- Model: 8LSA36.R2030D000-3
- Manufacturer: B&R Automation
- Series: 8LS synchronous motors
- Motor Type: Synchronous servo motor
- Mounting: Flange-mounted
- Cooling: Natural cooling
- Feedback: Multi-turn absolute encoder
- Protection: IP65
- Input Voltage: 3 x 400 VAC to 3 x 480 VAC, ±10%
- Rated Speed: 2,000 rpm
- Rated Torque: 30 Nm
- Weight: 3 kg
Product Introduction
B&R 8LSA36.R2030D000-3 is an 8LS series synchronous servo motor used in industrial motion control systems. It is a flange-mounted motor with natural cooling and encoder feedback, which makes it a common fit for precision axis applications.
The buying decision here is mostly about exact part-number matching, encoder compatibility, and mechanical fit. The motor is typically sourced for replacement work in B&R automation systems, so confirming the full suffix before ordering saves a lot of install rework.
- 8LSA36.R2030D000-3
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Motor does not rotate | Drive fault, wiring issue, or no supply voltage | ❌ Low | Measure drive output and check motor cable continuity | Verify the drive and cabling before replacing the motor |
| Axis hunts or oscillates | Encoder mismatch, tuning issue, or feedback fault | ✅ High | Compare encoder type and check alarm history in the drive | Confirm feedback compatibility before swapping the motor |
| Overtemperature alarm | Cooling problem, overload, or long duty cycle | ✅ High | Check cabinet temperature and motor load at the drive | Reduce load and verify airflow before replacing hardware |
| No encoder feedback | Feedback cable fault or connector seating issue | ✅ High | Inspect the encoder plug and test signal continuity | Reseat connectors and check cable integrity first |
| Excessive vibration | Coupling misalignment, bad bearing, or mounting issue | ✅ High | Check coupling alignment and mounting torque | Realign the axis before blaming the motor |
| Drive trips on startup | Wrong motor data, parameter mismatch, or shorted phases | ✅ High | Verify motor parameters and measure phase resistance | Match the motor file and inspect phase wiring |
If you are stuck, send photos of the nameplate, connector ends, and drive alarms to technical support.
Frequently Asked Questions
Is this a direct replacement for 8LSA36.R2030D000-3?
Yes, if the full suffix matches. On B&R motors, the suffix carries the details that matter for mechanical and feedback compatibility.
Can I install it without checking the encoder type?
No. That is one of the fastest ways to end up with an axis that powers up but will not run correctly.
Is this motor hot-swappable?
No. Shut the machine down first and follow the lockout procedure. Motors are not the place to cut corners.
What condition is this usually sold in?
Most units in the secondary market are New Surplus or tested used. That is normal for industrial servo hardware with limited factory stock.
Why is the price lower than buying new from B&R?
Because surplus inventory is often pulled from spare stock, overstock, or machine decommissioning. The lower price does not change the need to verify fit and feedback details.
What should I verify before ordering?
Check the full part number, mounting face, shaft details, encoder style, and drive compatibility. A near match is not enough.
What is the most common install mistake?
Ignoring feedback compatibility and assuming all 8LS motors behave the same. They do not, and that mistake usually costs a shift.


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