KDA 3.1-100-3-DYD-U1
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The Bosch Rexroth Indramat KDA 3.1-100-3-DYD-U1, part of the KDA Spindle Drives series, features internal fan cooling and a robust IP20 protection class. It delivers a rated output current of 100 Amps with a power input of 3 x 230/400 V AC at 50/60 Hz. The drive supports analog/digital communication.
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Product Description:
The Bosch Rexroth Indramat KDA 3.1-100-3-DYD-U1 Spindle Drive requires a rated current of 100 A for supporting heavy-duty spindle applications. The DC bus voltage of this drive is 300 V to support efficient energy transfer.
In continuous operation, the KDA 3.1-100-3-DYD-U1 drive has a continuous current rating of 70 A for long production runs, ensuring stability in the drive system. Its motor connection needs a 5 Nm tightening torque to provide a safe coupling between the motor and drive for reliable power delivery. The cooling process of this drive is done via forced cooling by a heatsink blower, which provides reliable heat dissipation over prolonged periods. This blower unit has a 4.2 kg weight for supporting cooling efficiency without excessive bulk, and it functions with a separate AC source of 115 V. This blower also supports a frequency range of 50–60 Hz to ensure stable air flow. In this drive, a position command value interface is presented in a digital 16-bit parallel input, which allows for accurate positioning and precise control. Similarly, this drive’s speed command value is processed through a digital 16-bit parallel input, providing timing synchronization between system commands and spindle reaction.
This spindle drive’s operating ambient temperature is defined from +5 °C up to +45 °C to ensure stability in regular production conditions. The storage and transportation temperature range of this drive is -30 °C to +85 °C for non-operation conditions to provide tolerance in shipping and handling. The KDA 3.1-100-3-DYD-U1 spindle drive is permissible to install at up to 1,000 meters above sea level. For protection, this spindle drive is rated under the category of electrical protection IP 10 as per DIN 40 050 for basic ingress protection.
Frequently Asked Questions about KDA 3.1-100-3-DYD-U1:
Q: How does the continuous 70 A current rating benefit KDA 3.1-100-3-DYD-U1?
A: It provides consistent spindle performance during prolonged industrial tasks. This rating ensures uninterrupted production without overheating concerns.
Q: Why is a parallel 16-bit interface chosen for speed control?
A: The interface minimizes delays in processing command inputs. It enables faster synchronization between drive and spindle motor.
Q: How does the 300 V DC bus voltage support system stability?
A: It reduces ripple effects during power transfer. This ensures smooth spindle acceleration and deceleration.
Q: What role does the 115 V blower supply play in KDA 3.1-100-3-DYD-U1?
A: It powers the heatsink blower independently of drive circuitry. This separation maintains consistent cooling even during voltage fluctuations.
Q: Why is transport temperature tolerance up to +85 °C important?
A: It allows the unit to withstand higher heat during storage. This durability reduces risk of component failure in transit.
