KDA 2.1-050-3-L0S-U1
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The KDA 2.1-050-3-L0S-U1 is a drive controller designed for panel mounting with a rated current of 50 A. Produced by Bosch Rexroth Indramat as part of the KDA Spindle Drives series, it operates on a 3-phase 3 x 230 V AC rated voltage and internal blower cooling (L0S). It has a protection class of IP20.
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Product Description:
The KDA 2.1-050-3-L0S-U1 is a spindle drive that belongs to the KDA series and is designed by Bosch Rexroth. It operates with a 300 VDC DC bus voltage and provides a rated 50 A of output current while its peak load capability reaches 100 A for brief duration. This drive receives power from an external KDV supply module that converts three-phase AC to 300 VDC.
The KDA 2.1-050-3-L0S-U1 drive is compatible with asynchronous spindle 2AD Indramat motors and it features a SERCOS fiber optic interface. Its SERCOS enables digital communication with CNC controllers to ensure precise speed and position command inputs. The drive supports closed-loop speed control with motor encoder feedback and an RS-232C serial port is included for diagnostics and configuration. It manages cooling through a forced-air blower system to stabilize under continuous loads, while the attached blower system operates with a 115 V AC supply input and it is mounted externally on the drive’s heatsink. The KDA 2.1 drive supports vertical installation inside a control cabinet, while horizontal or angled installation is not supported. It comes with IP10 protection rating and its cabinet installation can achieve up to IP20 protection. This unit possess a removable programming module that stores firmware and parameters.
The KDA 2.1-050-3-L0S-U1 drive is presented in a dimensional measure of 440 mm height, 155 mm width and 280 mm depth. It operates efficiently up to 1000 meters of elevation and supports humidity conditions up to 0.9%, non-moist. This drive connects motor via U, V and W terminals. It requires a minimum 10 mm² of conductor size for grounding and its SERCOS/RS-232 interfaces are front-accessible. The KDA 2.1 drive supports precise C-axis spindle positioning and meets industrial safety and electromagnetic compatibility standards.
Frequently Asked Questions about KDA 2.1-050-3-L0S-U1:
Q: How does the SERCOS interface improve communication in the KDA 2.1-050-3-L0S-U1 drive?
A: The SERCOS interface in the KDA 2.1-050-3-L0S-U1 enables fast, reliable communication between the drive and CNC controllers. This ensures precise speed and position control during operation.
Q: Why is the KDA 2.1-050-3-L0S-U1 limited to vertical installation?
A: Vertical installation is recommended to ensure optimal cooling and airflow. The system is designed to work efficiently when mounted in this orientation, helping to manage the heat dissipation properly.
Q: What is the significance of the 115 V AC supply input for cooling in the KDA 2.1-050-3-L0S-U1?
A: The external blower system with a 115 V AC input ensures effective forced-air cooling. This keeps the drive at an optimal temperature, even under continuous load conditions.
Q: What kind of feedback system does the KDA 2.1-050-3-L0S-U1 use for precise motor control?
A: The drive uses motor encoder feedback to maintain closed-loop speed control. This ensures that the motor operates precisely according to the specified speed commands.
Q: How does the KDA 2.1-050-3-L0S-U1 maintain electromagnetic compatibility (EMC) standards?
A: The KDA 2.1-050-3-L0S-U1 adheres to EMC standards to minimize electromagnetic interference. This ensures the drive operates effectively in environments with strict electromagnetic regulations.
