BLIII-D75A

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The Okuma BLIII-D75A is part of the BL Servo Drives series and operates at a voltage of 156 V AC with approximately 90% efficiency. This foot-mounted servo drive features an IP65 protection class and supports 3-phase electrical connections. It has a rated speed of 2000 RPM and weighs around 5.5 kg.

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Product Description:

The BLIII-D75A Servo Drive ensures efficient power delivery and control for servo motors. It is manufactured by Okuma with a durable metal enclosure. It incorporates heat dissipation features for thermal management. It operates with a power unit capacity of 75 A.

The BLIII-D75A servo drive features a robust power unit with an enclosed metal casing equipped with ventilation slots for optimal cooling. The cooling mechanism includes large aluminum heatsinks and perforated casing to enhance airflow. The enclosure is secured with screws to ensure safety and durability. This servo drive is designed to support multiple connectivity options including a large terminal block for motor power connections labeled U, V, and W. It also features multi pin connectors for control signal input and output, an RS-232 communication port and a CN1 port for system integration. This model includes configurable motor current limits via DIP switches. This drive operates on a three phase input voltage. This drive unit is equipped with comprehensive protection mechanisms including overvoltage (OV) protection, loss protection and current overload (OCS) protection. Fault indications are displayed via built in LEDs. Before operating this servo drive unit, carefully inspect both the inlet and outlet connections to ensure they are properly and securely connected. Incorrect or loose connections can result in malfunction.

The BLIII-D75A servo drive offers advanced signal processing for precise motor control and a reset function via SW1 with an operational status indicator in the form of an OP lamp. This unit consists of a radiator plate, a power board and an SVCII control board. These components collectively contribute to the efficient operation of this drive. This model is engineered to ensure reliable communication, seamless motor control and enhanced safety during operation.

Cooling Method
Natural Convection
Current Limit
22.5 A
Electrical Connection
3-phase
Encoder Feedback
Incremental Encoder
Mechanical Dimensions
Standard BL series dimensions
Mounting Type
Foot-mounted
Operating Temperature Range
0°C to 55°C
Operating Voltage
156 V AC
Operational Efficiency
Approximately 90%
Protection Class
IP65
Rated Current
14.7 Arms
Rated Output Power
3 kW
Rated Speed
2000 RPM
Weight
Approximately 5.5 kg

Frequently Asked Questions about BLIII-D75A:

Q: What protection mechanisms does the BLIII-D75A Servo Drive offer?

A: The BLIII-D75A Servo Drive includes overvoltage protection, loss protection, and current overload protection. It ensures safe operation by displaying fault indications via built-in LEDs for quick troubleshooting.

Q: How does the BLIII-D75A handle heat dissipation?

A: The BLIII-D75A Servo Drive features large aluminum heatsinks and a perforated metal casing to optimize airflow. This cooling system effectively manages heat to ensure continuous operation without thermal issues.

Q: What connectivity options are available on the BLIII-D75A Servo Drive?

A: The BLIII-D75A Servo Drive supports multiple connectivity options. It includes a large terminal block for motor power connections, an RS-232 port, and a CN1 port for seamless system integration.

Q: How can I set motor current limits on the BLIII-D75A Servo Drive?

A: Motor current limits on the BLIII-D75A can be configured using DIP switches. This flexibility allows fine-tuning of motor control for specific applications, optimizing performance and protecting the system.

Q: What components contribute to the operation of the BLIII-D75A?

A: The BLIII-D75A Servo Drive consists of a radiator plate, power board, and SVCII control board. These components work together to ensure efficient motor control and reliable communication during operation.


Internal Product Review

  • ‘‘The BLIII-D75A Servo Drive by Okuma is designed for precise motor control with advanced signal processing. It supports overvoltage protection, configurable motor current limits, and multiple communication ports like RS-232 and CN1. The durable metal casing and thermal management features ensure long-lasting reliability. Ideal for high-performance applications.’’

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