KDA 2.1-100-3-A0S-U1
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The KDA 2.1-100-3-A0S-U1 spindle drive features air cooling and a rated current of 100A. Manufactured by Bosch Rexroth Indramat as part of the KDA Spindle Drives series, it operates on a 3x220…230V AC input within a 50/60 Hz range. The drive is CE compliant and compatible with resolver feedback systems.
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Product Description:
The Indramat’s drive KDA 2.1-100-3-A0S-U1 is designed for use with 2AD and 1MB spindle motors. It supports a rated peak current of 100 A and requires 300 VDC of nominal DC bus voltage. The drive’s main supply voltage is 3× 380–480 VAC at 50/60 Hz and its integrated blower fan operates at 150 VAC.
The KDA 2.1-100-3-A0S-U1 drive offers panel mounting and can be installed in a vertical position with blower at the bottom. Its dimensions are 440 mm height, 155 mm width and 280 mm depth. The drive uses an analog ±10 V speed command and it comes with auxiliary encoder input installed as well for connecting a second motor feedback. A standard RS-232C serial interface is available for parameter setting. Its motor feedback is read directly for speed control and motor protection. Its control interface includes enable input and fault status output. This KDA 2.1 drive also provides analog monitor outputs for speed and current. It maintains ambient temperature via a force cooling system combined with a heatsink. The drive includes internal thermal protection sensors for overheating control and its installation requires sufficient airflow above and below for proper ventilation.
The KDA 2.1-100-3-A0S-U1 drive comes with an IP10 protection rating and it needs to be installed in a controlled cabinet. It operates in a thermal range of up to 45 °C and its maximum allowed ambient temperature is 55 °C with derating. The drive operates up to 1000 m above sea level and it is rated for 75% of maximum relative humidity without condensation. It works with machines that need analog speed control and its integrated programming module stores firmware along with all parameters. This KDA 2.1 drive enables fast replacement and consistent drive configuration.
Frequently Asked Questions about KDA 2.1-100-3-A0S-U1:
Q: What is the role of the integrated blower fan in the Bosch Indramat KDA 2.1-100-3-A0S-U1?
A: The blower fan helps to maintain the proper ambient temperature by enhancing the cooling system. This ensures the drive operates at optimum efficiency even during heavy use.
Q: Why does the Bosch Indramat KDA 2.1-100-3-A0S-U1 require installation in a controlled cabinet?
A: The IP10 protection rating means the drive is not fully protected against dust or water. A controlled cabinet ensures better protection and enhances the drive's longevity.
Q: How does the auxiliary encoder input in the KDA 2.1-100-3-A0S-U1 improve motor performance?
A: The auxiliary encoder allows the drive to connect a second motor feedback for more accurate speed control and motor protection. This feature ensures better synchronization and reliability.
Q: Can the KDA 2.1-100-3-A0S-U1 be installed in any orientation?
A: It is designed for panel mounting and can be installed in a vertical position with the blower at the bottom. This configuration optimizes airflow for cooling and stability.
Q: How does the RS-232C interface enhance user experience in the KDA 2.1-100-3-A0S-U1?
A: The RS-232C serial interface allows for easy parameter setting and communication with external devices. This simplifies system integration and makes adjustments easier.
