KDA 3.1-100-3-DYI-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KDA 3.1-100-3-DYI-W1 is a spindle drive in the KDA Spindle Drives series. It operates with a rated current of 100 Amps and uses a mounted heatsink blower with forced cooling. The drive features a second encoder input, synchronous input, and a digital 16-bit parallel speed command value.
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Product Description:
The KDA 3.1-100-3-DYI-W1 belongs to the KDA Spindle Drives series manufactured by Bosch Rexroth Indramat. As a spindle drive, it regulates high-speed motor shafts in machining centers and related automation equipment, converting digital speed commands into controlled three-phase power for the connected spindle motor. The unit incorporates an integral heat sink blower, so it can be installed inside a control cabinet without external ducting and still maintain directed airflow across the cooling surfaces.
The drive delivers a continuous output of 100 A, which is the maximum current the power stage can supply to the spindle under rated thermal conditions. Its intermediate circuit operates from a 300 V DC bus, so the upstream supply and regeneration modules must maintain that level for stable operation. The heat sink blower is fed from a separate 220 V at 50/60 Hz source, isolating cooling power from the main DC link and allowing the fan to run during coast-down or standby. Overall thermal management uses forced cooling, and speed references arrive as a 16-bit parallel digital word, which lets the supervising CNC transmit precise commands without analog drift or additional conversion hardware in the command path.
The permissible ambient range is 5 to 45 °C, supporting installation in standard shop floor enclosures where cabinet temperatures remain within normal industrial limits. Performance is maintained up to 1000 m above sea level, after which derating is required because of reduced air density. For feedback distribution to auxiliary controllers, the front panel offers an incremental encoder output, and a separate channel accepts a second encoder input and synchronous input for dual-feedback arrangements such as spindle orientation or master-follower operation without external splitters.
Frequently Asked Questions about KDA 3.1-100-3-DYI-W1:
Q: What AC source voltage and frequency is needed for the heatsink blower on the KDA 3.1-100-3-DYI-W1?
A: The KDA 3.1-100-3-DYI-W1 requires a 220V AC power source at 50-60Hz for its heatsink blower.
Q: What kind of additional interface is available on the KDA 3.1-100-3-DYI-W1 spindle drive?
A: This model provides an incremental encoder output as an additional interface.
Q: What ambient temperature range is supported by the KDA 3.1-100-3-DYI-W1?
A: The KDA 3.1-100-3-DYI-W1 operates optimally in ambient temperatures from 5 to 45 degrees Celsius.
Q: How is the KDA 3.1-100-3-DYI-W1 cooled during operation?
A: This spindle drive uses forced cooling with a mounted heatsink blower for thermal management.
Q: What is the rated current specification for the KDA 3.1-100-3-DYI-W1?
A: The rated current for this device is 100 A, allowing for high-power spindle applications.
