Description:

The Okuma BL Servo Motor Type BL-MC100E-30SB is a high-performance,3 kW(3000 RPM)brushless AC servo motor,an integral part of Okuma’s renowned BL Servo Motor Series.Manufactured by OKUMA,a global leader in CNC machine tools,this motor is engineered for precision and efficiency in demanding industrial automation applications.It comes equipped with an integrated ER-FC-2048D Absolute Encoder,ensuring highly accurate positional feedback and speed control.The BL-MC100E-30SB provides dynamic response,high continuous torque,and robust operation,making it ideal for critical machine axes where precise,repeatable,and powerful motion is paramount.

Application Scenarios:

Consider a high-precision mold manufacturing facility that relies on an OKUMA vertical machining center for creating complex injection molds with incredibly fine details.The quality of the final mold,and thus the molded plastic part,depends entirely on the accuracy and smoothness of the machine’s axis movements,especially during finishing passes.The machine’s primary feed axis,driven by an Okuma BL-MC100E-30SB servo motor,must maintain consistent speed and precise positioning under varying cutting loads to achieve the required surface finish and dimensional accuracy.The BL-MC100E-30SB’s 3 kW output,8 Nm continuous torque,and integrated ER-FC-2048D absolute encoder provide the essential combination of power and feedback resolution.This ensures the cutting tool follows the programmed path flawlessly,minimizing chatter and eliminating surface imperfections.The reliable performance of this motor-encoder combination directly addresses the pain points of mold rejection,costly rework,and the critical need for uncompromising precision in high-value manufacturing processes.

Parameter:

Main Parameters

Value/Description

Product Model

BL-MC100E-30SB

Manufacturer

OKUMA

Product Type

Brushless AC Servo Motor

Rated Output Power

3 kW(Kilowatts)Continuous–High power output suitable for demanding applications.

Rated Speed

3000 RPM(Revolutions Per Minute)–Optimal speed for high-throughput machining.

Rated Voltage

133 V(Volts)AC,3-Phase–Standard operating voltage for the motor windings.

Continuous Torque

8 Nm(Newton-meters)–Sustained torque capability for consistent load handling.

Stall Torque

10 Nm(Newton-meters)–Maximum torque at zero speed,for high initial acceleration.

Rated Current

13.4 A(Amperes)–Nominal current draw at rated load.

Number of Poles

8 Poles–Ensures smooth operation and efficient torque delivery.

Insulation Class

Class F–High-temperature insulation for increased durability and reliability.

Protection Class

IP65–Protected against dust ingress and low-pressure water jets,suitable for industrial environments.

Encoder Type

ER-FC-2048D Absolute Encoder–Provides direct and absolute position feedback.

Encoder Resolution

2048 Pulses/Revolution(or up to 16-bit)–High resolution for precise positional accuracy.

Encoder Functionality

Multi-turn/Single-turn capable;retains position on power loss–Ensures robust and reliable feedback.

Shaft Type

Straight Shaft–Standard shaft configuration for direct coupling.

Frequency

200 Hz–Operating frequency of the motor.

Technical Principles and Innovative Values:

The Okuma BL-MC100E-30SB Servo Motor with its integrated ER-FC-2048D Encoder represents a synergy of advanced motor technology and high-resolution feedback,crucial for modern CNC performance.

Innovation Point 1:Optimized Permanent Magnet Design for High Efficiency and Torque Density:The BL-MC100E-30SB utilizes a highly optimized permanent magnet synchronous motor(PMSM)design with 8 poles.This configuration maximizes the magnetic field strength and interaction,resulting in high torque density(8 Nm continuous,10 Nm stall)within a compact frame.The permanent magnets contribute to significant energy efficiency by minimizing rotor losses,leading to lower operating temperatures and reduced energy consumption compared to traditional induction motors,while providing consistent torque across its 3000 RPM speed range.

Innovation Point 2:Integrated High-Resolution Absolute Encoder(ER-FC-2048D):The motor is seamlessly integrated with the ER-FC-2048D absolute encoder.Unlike incremental encoders,this absolute encoder generates a unique digital code for every shaft position,meaning it retains its exact position even after power cycles or interruptions.With a resolution of 2048 pulses per revolution and multi-turn capabilities,it provides extremely precise positional feedback to the servo drive.This high-resolution absolute feedback is critical for closed-loop control systems,enabling superior accuracy,faster settling times,and eliminating the need for homing routines after power loss,significantly improving machine setup and operational efficiency.

Innovation Point 3:Robust Industrial Construction with IP65 Protection:Engineered for the demanding conditions of CNC machining and industrial automation,the BL-MC100E-30SB features a rugged construction with an IP65 protection rating.This ingress protection ensures the motor is sealed against dust penetration and resistant to low-pressure water jets,safeguarding internal components from contaminants common in machine shop environments.Combined with Class F insulation,which protects against high temperatures,this robust design ensures long-term durability,reliable operation,and extended service life even under continuous,high-stress operating conditions.

Application Cases and Industry Value:

In an automotive component manufacturing plant,an OKUMA multitasking machine was producing critical engine parts requiring extremely fine surface finishes and tight dimensional tolerances on complex geometries.The machine’s primary X-axis feed,driven by the Okuma BL-MC100E-30SB servo motor,was crucial for achieving these requirements.The motor’s 3 kW continuous power and 8 Nm continuous torque,coupled with the precise feedback from the ER-FC-2048D absolute encoder,ensured the cutting tool maintained perfect control,even during intricate contouring and heavy material removal.This combination led to a 10%reduction in cycle time and a significant decrease in rejected parts due to improved surface quality and dimensional accuracy,underscoring the direct impact of high-performance motors on production efficiency and quality control in automotive manufacturing.

Another impactful case involved a manufacturer of heavy construction equipment,using a large OKUMA horizontal boring machine to bore precise holes in thick steel frames.The accuracy of the boring head’s position along the Y-axis was critical.The Okuma BL-MC100E-30SB motor,with its powerful torque output and the absolute positioning capability of the ER-FC-2048D encoder,provided the necessary rigidity and control for these heavy-duty operations.Its reliable performance meant that boring operations were completed with consistent accuracy,reducing rework on massive,expensive components.Furthermore,the motor’s IP65 rating provided crucial protection against coolant and metal chips prevalent in such an environment,ensuring long-term reliability and minimizing maintenance needs,thus contributing to lower operational costs and consistent output.

Related Product Combination Solutions:

The Okuma BL-MC100E-30SB Servo Motor with ER-FC-2048D Encoder is typically integrated into an OKUMA CNC system,working in conjunction with:

OKUMA BLII-D Series Servo Drives(e.g.,BLII-D7575A,BLII-D100A,or similar drives compatible with 133V motors):These are the dedicated servo drives that power and control the BL-MC100E-30SB motor.

OKUMA OSP Series CNC Controllers(e.g.,OSP-5020M/L,OSP-7000M/L,OSP-P Series):The central brain of the machine,responsible for generating motion commands and receiving feedback from the encoder.

OKUMA Power Supply Units(PSU)for Drives:These units provide the necessary power to the servo drive system.

OKUMA Machine Cables(Power and Feedback):Specific shielded cables designed for reliable connection between the servo motor/encoder and the servo drive/controller,ensuring signal integrity.

OKUMA Spindles and Tooling:Often part of the same machine,benefiting from the precise axis movements driven by the servo motors.

OKUMA BLIV Series Servo Drives:While the BL-MC100E-30SB is part of the BL series,newer BLIV drives are often backward compatible and can provide enhanced control features.

Installation,Maintenance,and Full-Cycle Support:

The installation of the Okuma BL-MC100E-30SB Servo Motor and its integrated ER-FC-2048D Encoder demands meticulous attention to both mechanical and electrical procedures to ensure optimal performance,accuracy,and longevity.Prior to any installation or replacement,it is paramount to completely disconnect and lock out all power sources to the CNC machine.The motor must be securely mounted to the machine’s mechanical structure,ensuring proper alignment with the driven load to prevent excessive bearing wear and vibration.The mechanical coupling between the motor shaft and the machine’s lead screw or gearbox must be precisely aligned and torqued according to OKUMA specifications.All electrical connections—including power cables(U,V,W phases),ground wire,and the delicate multi-pin connector for the ER-FC-2048D encoder—must be correctly wired and secured to prevent intermittent signals or power loss.Post-physical installation,a thorough commissioning process is essential,which typically involves parameter settings on the associated servo drive,calibration of the encoder feedback,and fine-tuning the servo loop gains to achieve optimal motion control and responsiveness,often using specialized OKUMA diagnostic software.

Routine maintenance for the Okuma BL-MC100E-30SB Servo Motor primarily involves ensuring a clean operating environment and regular inspections.Despite its IP65 protection,it is advisable to keep the motor free from excessive coolant,metal chips,and dust accumulation.Periodically check the motor casing for any signs of physical damage,overheating(discoloration),or unusual noise during operation,which could indicate bearing wear or internal issues.Inspect all cable connections for tightness and any signs of wear or fraying,especially where cables bend or flex.The encoder’s connection should be kept clean and secure,as precise feedback is vital.While the ER-FC-2048D absolute encoder is designed for reliability and requires minimal maintenance,protecting it from physical impact and extreme temperatures(outside 0°C to+40°C)is crucial.Our dedicated technical support team offers comprehensive assistance,from initial installation guidance and performance optimization to expert troubleshooting and sourcing of genuine replacement parts,ensuring your Okuma BL-MC100E-30SB Servo Motor continues to deliver reliable and precise motion control throughout its extensive operational life.

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