KDA 3.1-150-3-L0S-W1
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The KDA 3.1-150-3-L0S-W1 is a spindle drive manufactured by Bosch Rexroth Indramat. As part of the KDA Spindle Drives series, it features a rated power of 150 W and operates on three phases. The drive uses forced air cooling and supports analog +/- 10V control signals. It weighs 5.8 kg.
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Product Description:
The Indramat’s control drive KDA 3.1-150-3-L0S-W1 is engineered to support asynchronous and frameless spindle motors. It delivers a rated continuous current of 150 A and it operates at a nominal DC bus voltage of 300 V. This drive includes a digital SERCOS interface for high-speed command input and it performs real-time controls using internal motor feedback.
The KDA 3.1-150-3-L0S-W1 drive maintain ambient thermal range through the provided forced-air heatsink blower, which is rated at 220V AC. It does not possess an auxiliary encoder input for connecting the feedback of a secondary motor. The drive’s built-in serial RS-232C port provides access for diagnostics and parameter transfer, while it manages parameter storage in the provided AS programming module. This AS module retains both machine or motor-specific settings and the stored parameter sets can be reused during hardware replacement without reprogramming. The KDA drive supports operation within a range of +5°C to +45°C, while its peak operating temperature is allowed up to +55°C with derated output and it tolerates installation altitude without performance reduction up to 1000 meters. It requires vertical mounting inside a sealed IP10-rated control cabinet and all its electrical connections follow standard terminal assignments. The drive includes a 37-pin X2 standard control interface and its feedback signals are connected using a 15-pin X3 motor feedback port, while the command signal input is processed via X4 optical SERCOS interface.
The KDA 3.1-150-3-L0S-W1 drive operates with a control voltage supply of ±15V and +24V. Its internal logic consumes 1.6 A from the 24V line to support high-resolution positioning. It is designed for high-speed and C-axis control. The unit meets industrial standards for EMI compliance and fault handling, while its housing includes mounting brackets and grounding points as well. It supports modular system expansion and adjacent module connections.
Frequently Asked Questions about KDA 3.1-150-3-L0S-W1:
Q: How does the SERCOS interface benefit the KDA 3.1-150-3-L0S-W1 drive?
A: The SERCOS interface ensures high-speed, real-time command transfer with minimal latency. This allows the drive to synchronize motion control efficiently in multi-axis applications.
Q: Why does the KDA 3.1-150-3-L0S-W1 use a forced-air heatsink blower?
A: The blower actively removes excess heat from power components to maintain efficiency. This prevents derating at higher currents and extends drive lifespan.
Q: What is the role of the AS programming module in the KDA drive?
A: The AS module stores motor-specific and machine parameters securely. It simplifies hardware replacement by reloading parameters without requiring reprogramming.
Q: Why is a ±15V supply included in the KDA 3.1-150-3-L0S-W1 design?
A: The ±15V supply powers analog control circuits. It ensures precise signal conditioning for stable drive and motor control operations.
Q: How does the RS-232C port improve usability of the KDA drive?
A: The RS-232C port allows parameter transfer and diagnostic checks via PC tools. This reduces troubleshooting time and enhances service accessibility.
