Description
⚙️ Product Overview
The B&R 8LSA78.R2030D600-3 is a high-torque synchronous servo motor from the B&R 8LSA family, identified as AB180-S2-P2. It is designed for precision motion-control applications requiring controlled speed, high torque, and reliable servo performance.
The listed motor is specified for 3000 RPM operation, 400 V supply, 44 Nm nominal torque, and 85 Nm stall torque. It features an IP65 enclosure rating and Class F insulation, making it suitable for demanding industrial machine environments when correctly installed.
The motor is also associated with an Apex Dynamics AB180-S2-P2 gearbox configuration, with a 4:1 ratio and approximately 5 arcmin backlash as identified for this particular unit. These gearbox characteristics should be considered when integrating the motor into an existing mechanical transmission.
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | B&R |
| Model | 8LSA78.R2030D600-3 |
| Series | 8LSA Synchronous Motor |
| Product Name | Synchronous Servo Motor |
| Product Type | AC Synchronous Servo Motor |
| Motor Model | AB180-S2-P2 |
| Nominal Speed | 3000 RPM |
| Nominal Torque | 44 Nm |
| Stall Torque | 85 Nm |
| Protection Rating | IP65 |
🔧 Key Features
- ⚡ B&R 8LSA synchronous servo motor
- 🔄 3000 RPM nominal speed
- 💪 44 Nm nominal torque
- 🚀 85 Nm stall torque
- 🔌 400 V motor voltage
- 🛡️ IP65 ingress protection
- 🌡️ Class F insulation with 40°C ambient reference
- 🏭 Self-cooled industrial motor design
- ⚙️ AB180-S2-P2 mechanical configuration
- 🔩 4:1 gearbox ratio identified for the listed configuration
- 🎯 Approximately 5 arcmin gearbox backlash
- 🏷️ Revision C8 identification
⚙️ Motor Performance
The 8LSA78 frame is intended for applications requiring substantially more torque than smaller B&R 8LSA motors.
For the identified configuration, the nominal operating point is 44 Nm at 3000 RPM, while the stall torque is approximately 85 Nm. The motor is therefore suitable for applications involving frequent acceleration, deceleration, positioning, and controlled torque output.
The motor’s actual permissible operating point depends on the connected B&R servo drive, duty cycle, ambient conditions, mechanical load, and motor parameter configuration.
🔩 Gearbox & Mechanical Integration
The listed AB180-S2-P2 designation is associated with an Apex Dynamics gearbox configuration. The identified specifications include a 4:1 reduction ratio and approximately 5 arcmin backlash.
With a geared servo arrangement, the output speed and torque are different from the motor shaft values. The gearbox must therefore be considered when calculating machine speed, output torque, positioning accuracy, acceleration, and reflected inertia.
Before replacing an installed motor/gearbox assembly, verify:
- Motor model
- Gearbox model
- Reduction ratio
- Output shaft configuration
- Mounting flange
- Shaft dimensions
- Backlash requirement
- Mechanical coupling
- Rotation direction
🔌 Servo System Integration
The 8LSA78 motor is intended for integration with B&R motion-control equipment. B&R’s 8LSA motor family is designed for use with compatible ACOPOS and ACOPOSmulti servo-drive platforms.
Correct motor-drive matching requires verification of the complete motor order code, nominal current, feedback system, brake configuration, motor parameters, and machine load.
When commissioning a replacement motor, the following should be confirmed:
- Motor identification
- Servo-drive compatibility
- Motor parameter set
- Feedback configuration
- Motor cable and connector
- Nominal current
- Brake configuration
- Mechanical transmission ratio
- Machine reference position
🛠️ Installation & Maintenance
- Disconnect the machine and servo-drive power before installation.
- Confirm the complete motor order code 8LSA78.R2030D600-3.
- Inspect the housing, shaft, flange, connectors, and cable connections.
- Check the gearbox and coupling for mechanical damage.
- Verify the 4:1 transmission ratio where the AB180-S2-P2 configuration is used.
- Install the motor with correct mechanical alignment.
- Connect power and feedback wiring according to the approved machine configuration.
- Load or verify the correct B&R motor parameters.
- Perform an initial low-speed rotation test.
- Monitor current, temperature, vibration, speed, and positioning behavior during commissioning.
⚠️ Servo motors can generate dangerous mechanical movement immediately after power-up. Installation and commissioning should be performed by qualified personnel using the machine manufacturer’s safety procedures.
🔍 Troubleshooting Guide
Motor does not rotate:
Check servo enable status, power wiring, feedback connection, drive alarms, and motor parameters.
Feedback alarm occurs:
Inspect the feedback connector and cable. Verify that the configured feedback system matches the installed motor.
Motor overheats:
Check machine load, acceleration profile, duty cycle, ambient temperature, ventilation, and servo-drive current.
Output speed is incorrect:
Check the gearbox ratio and servo-drive scaling. A 4:1 reduction changes the relationship between motor speed and gearbox output speed.
Positioning accuracy is poor:
Inspect gearbox backlash, coupling alignment, mechanical play, feedback configuration, and servo tuning.
Excessive vibration or noise:
Check shaft alignment, gearbox condition, coupling balance, mounting bolts, bearings, and machine load.
🧪 Inspection Checklist
For a used or surplus B&R 8LSA78.R2030D600-3, inspect:
- Model and nameplate
- AB180-S2-P2 identification
- Revision C8
- Motor housing
- Shaft condition
- Mounting flange
- Motor connector
- Feedback connector
- Gearbox condition
- Oil leakage or seal damage
- Mechanical backlash
- Bearing noise
- Insulation condition
- Rotation performance
- IP65 housing integrity
The physical condition and operating status should be verified against the actual unit before installation.
❓ Frequently Asked Questions
Q1: What type of motor is the 8LSA78.R2030D600-3?
It is a B&R 8LSA synchronous servo motor designed for industrial motion-control applications.
Q2: What is the nominal speed?
The identified configuration has a nominal speed of 3000 RPM.
Q3: What is the nominal torque?
The identified motor configuration has a nominal torque of 44 Nm and a stall torque of approximately 85 Nm.
Q4: What voltage does this motor use?
The listed configuration is specified for 400 V.
Q5: What does IP65 indicate?
IP65 indicates protection against dust ingress and water jets when the motor is properly installed with its required connectors and sealing arrangements.
Q6: What is AB180-S2-P2?
AB180-S2-P2 identifies the mechanical/gearbox configuration associated with the listed motor assembly.
Q7: What is the gearbox ratio?
The identified AB180-S2-P2 configuration has a 4:1 ratio.
Q8: Is this motor compatible with any B&R servo drive?
No. The complete motor order code, feedback, current requirements, brake configuration, and machine application must be checked against the servo drive before commissioning.
Q9: What is the maximum speed?
The 8LSA78 family has configurations with maximum speed above the 3000 RPM nominal operating point. The exact maximum permissible speed should be verified for the complete 8LSA78.R2030D600-3 configuration before operation.
🔄 Recommended B&R Models
- B&R 8LSA75.R2030D300-3 Synchronous Servo Motor
- B&R 8LSA78 Series Synchronous Servo Motor
- B&R 8LSA76 Series Synchronous Servo Motor
- B&R 8LSA73 Series Synchronous Servo Motor
- B&R 8LSA85 Series Synchronous Servo Motor
- B&R 8LSA86 Series Synchronous Servo Motor
- B&R 8LSA66 Series Synchronous Servo Motor
- B&R 8LSA63 Series Synchronous Servo Motor
- B&R 8LSA56 Series Synchronous Servo Motor
- B&R 8LSA53 Series Synchronous Servo Motor
📦 Spare-Parts Planning
The 8LSA78.R2030D600-3 is a relatively large servo motor assembly, and replacement compatibility should be managed using the complete order code rather than the general 8LSA78 family designation.
For critical production machinery, maintain records for the motor order code, feedback configuration, gearbox ratio, mounting position, associated servo drive, machine axis, and commissioning parameters.
Because the listed configuration includes a gearbox, stocking only a similar 8LSA motor may not provide a mechanically equivalent replacement. The motor + gearbox + feedback + shaft configuration should be treated as one replacement specification when planning critical spare inventory.
