KDA 3.1-100-3-DPS-U1

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The KDA 3.1-100-3-DPS-U1 spindle drive from Bosch Rexroth Indramat features a rated current of 100 amps, single-axis operation, and external cooling via DPS. Part of the KDA Spindle Drives series, it supports feedback via resolver or encoder and offers panel mounting with a weight range of approximately 18–25 kg.

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Product Description:

The KDA 3.1-100-3-DPS-U1 from Rexroth Indramat is a KDA Spindle Drive designed for dependable industrial automation applications. It is specified for high accuracy spindle operation in challenging applications. The motor runs at a rated current of 100 A that guarantees a constant power supply.

The KDA 3.1-100-3-DPS-U1 spindle drive has a DC bus voltage rating of 300 V that helps to provide efficient energy management. It relies on forced cooling to provide reliable high work thermal regulation. The drive heatsink fan offers good air circulation to the internal components. Its adherence to DIN 40 040 makes it safe to work under the allowed humidities. The drive built in display screen and controls enable direct status readings and parameter control. It incorporates an auxiliary encoder input to check the motor feedback. The KDA 3.1-100-3-DPS-U1 spindle drive global power standards are supported at 50 to 60 Hz. Its three-phase auto selection provides good smooth operational features in industries. The drive sustained current rating of 70 A enables constant operation when operating in the long term. Its digital 16-bit parallel command input provides the correct speed control in spindle activities. The drive can work in an ambient temperature between 0°C and 45°C.

The KDA 3.1-100-3-DPS-U1 spindle drive is constructed with an AC source of supply of 115 VAC specifically to serve the heatsink blower. It is produced with enclosure protection class IP10 as per DIN 40 050 standards. The drive is capable of working up to 1000 m high without derating. It is provided with a dual LED system which marks the ready state and fault condition. The drive sustains a performance at 5 to 95 % of non-condensing humidity. Its weight of 17.1 kg gives strong construction and easy handling in installation.

Communication
U1 variant (specific configuration, usually analog command interface)
Cooling Method
DPS – Direct Power Supply (external cooling)
Dimensions
Approx. 440 mm x 320 mm x 185 mm
Feedback Type
Resolver or Encoder
Input Voltage
3 x 230/400 V AC
LEDs
2 LED ( Ready LED and Fault LED)
Mounting
Panel mount
Number Of Axes
Single axis
Output Current
Up to 100 A (depends on configuration)
Perm. humidity
F per DIN 40 040
Protection Class
IP 10 (typically for open unit installations)
Rated Current
100 A
Supported Motors
Compatible with Indramat AC motors
Weight
Approx. 18–25 kg (varies by mounting & options)
  • KDA 311003DPSU1

Frequently Asked Questions about KDA 3.1-100-3-DPS-U1:

Q: What is the purpose of the forced cooling in the KDA 3.1-100-3-DPS-U1?

A: The forced cooling system ensures optimal thermal regulation, preventing overheating during continuous operation. This improves the overall reliability and longevity of the KDA 3.1-100-3-DPS-U1.

Q: Why is the KDA 3.1-100-3-DPS-U1 equipped with a DC bus voltage of 300 V?

A: The 300 V DC bus voltage enhances energy efficiency by providing stable power management across varying loads. This feature is crucial for the KDA 3.1-100-3-DPS-U1 to meet industrial standards.

Q: How does the 16-bit parallel command input benefit the KDA 3.1-100-3-DPS-U1?

A: The 16-bit parallel command input ensures precise speed control, which is essential for spindle operations requiring high accuracy. This functionality is particularly beneficial in fine-tuned industrial applications.

Q: How does the KDA 3.1-100-3-DPS-U1 perform at high altitudes?

A: The drive operates up to 1000 m above sea level without derating, maintaining full performance in high-altitude environments. This feature makes the KDA 3.1-100-3-DPS-U1 suitable for diverse geographical locations.

Q: What is the importance of the KDA 3.1-100-3-DPS-U1's auxiliary encoder input?

A: The auxiliary encoder input provides precise motor feedback, ensuring accurate control and performance. This is essential for maintaining the precision of the KDA 3.1-100-3-DPS-U1 during complex tasks.


Internal Product Review

  • ‘‘The KDA 3.1-100-3-DPS-U1 spindle drive offers excellent thermal regulation, supported by forced cooling and an efficient 300 V DC bus voltage. It ensures smooth, reliable operation under demanding conditions with its 100 A rated current. This drive is vital for high-precision industrial automation applications.’’

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