KDA 3.1-050-3-DQS-W1

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The KDA 3.1-050-3-DQS-W1 is a drive controller with three axes and air-cooling capabilities. Manufactured by Bosch Rexroth Indramat as part of their KDA Spindle Drives series, it operates with a rated current of 50 A and a voltage of 3 x 230/400 V AC. The unit weighs 14 kg and measures 194 mm wide, 390 mm tall.

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Product Description:

The motor control drive KDA 3.1-050-3-DQS-W1 from Bosch Rexroth is equipped with an LE4 blower that operates on 220 V AC at 50 - 60Hz frequency. Its blower unit uses forced cooling method through a heatsink that is mounted on the back panel to ensure efficient heat dissipation from the unit with an airflow of 3 to 4 m/s.

The KDA 3.1-050-3-DQS-W1 drive requires a DC bus voltage of 300.0 V and its maximum load capacity is specified as 50.0 A, while in continuous operating mode it manages 35.0 A of current at the output for stable and continuous power delivery to the connected motors. It weighs 16.60 kg alone, with an additional 1.70 kg of the mechanical mounting kit and 4.20 kg of the blower unit. This drive is presented in a compact dimension of 39 cm height, 15 cm width and 16.6 cm depth. It connects motor feedback at connector X3, which provides high-resolution feedback for spindle positioning and at X5 it supports secondary feedback as well of the specified encoders that produces 1 VSS of sin/cos waveform as output. The KDA drive’s speed command value is transmitted through a 16-bit parallel digital interface at X4 for providing precise motor control. It is protected by an IP10 protective enclosure, which shields it from objects larger than 50 mm but does not protect against liquid and minor dust particles. The unit operates efficiently in environments with a maximum humidity of 70%.

The KDA 3.1-050-3-DQS-W1 drive depends on RS232C interface for system integration and upgradation. Its AS3 removable programming module contains drive-specific parameter, values determined by INDRAMAT and user-specific values as per the setting configuration. The unit uses special cable for blower bus connectivity at X13 and it requires proper grounding through its provided bolts.

Blower Airflow
3–4 m/s
Blower Type
LE4 blower
Cooling Method
Air-cooled
Depth
223 mm
Height
390 mm
Number Of Axes
3
Operating Humidity
Up to 70%
Protection Class
IP20
Rated Current
50 A
Rated Voltage
3 x 230/400 V AC
Speed Command Connector X4
16-bit parallel digital interface
Supply Frequency
50/60 Hz
Type
Drive Controller
Weight
14 kg
Width
194 mm
  • KDA 310503DQSW1

Frequently Asked Questions about KDA 3.1-050-3-DQS-W1:

Q: What is the significance of the 16-bit parallel speed command interface in the KDA 3.1-050-3-DQS-W1?

A: The 16-bit parallel interface allows for high-resolution speed control, enabling precise adjustments in motor operations. This feature is crucial for applications requiring fine-tuned speed regulation.

Q: Why does the KDA 3.1-050-3-DQS-W1 use forced cooling with a heatsink blower?

A: The forced cooling system ensures effective heat dissipation, maintaining optimal operating temperatures and preventing thermal overload. This design enhances the drive's reliability and longevity in continuous operations.

Q: What role does the RS232C interface play in the KDA 3.1-050-3-DQS-W1?

A: The RS232C interface facilitates system integration and firmware upgrades, allowing for easy communication with external devices and ensuring the drive remains up-to-date with the latest software enhancements.

Q: Why is the mechanical mounting kit important for KDA 3.1-050-3-DQS-W1 drive?

A: The mechanical mounting kit provides the necessary hardware for secure installation, ensuring the drive is firmly positioned within the system. This stability is vital for maintaining consistent performance and reducing mechanical stress.

Q: What is the purpose of the AS3 removable programming module in the KDA 3.1-050-3-DQS-W1?

A: The AS3 module stores drive-specific and user-configured parameters, allowing for easy replacement and maintenance without the need for reprogramming. This feature simplifies servicing and reduces downtime.


Internal Product Review

  • ‘‘The KDA 3.1-050-3-DQS-W1 is a spindle drive designed for precision applications. It features a 50 A rated current, 300 V DC bus voltage and a digital 16-bit parallel speed command interface. This drive is ideal for CNC machine tools and automated production lines requiring accurate spindle control and reliable performance’’

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