HDS03.2-W100N-HS91-01-FW

HDS Drive Controllers

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{"paragraphs":["The HDS03.2-W100N-HS91-01-FW from Bosch Rexroth Indramat offers a rated current of 100 A and utilizes a SERCOS command communication interface. Part of the HDS Drive Controllers, it belongs to the DIAX04 family and uses internal air blower cooling.","It supports Line 03 with no other versions and carries a Function ID code 91 within the HDS product group. The unit is Version 2 with a Function ID version 1."]}

Technical Specifications

Command Communication Interface
SERCOS

Controller Family
DIAX04

Cooling Method
Built-in Internal Air Blower

Line
03

Other Versions
None

Product Type
HDS Drive Controller

Rated Current
100 A

Version
2

Function ID Code
91

Product Group
HDS

Version of Function ID
1

Frequently Asked Questions

What is special about the Bosch Rexroth Indramat HDS03.2-W100N-HS91-01-FW’s handling of continuous current at high switching frequencies?

At 8 kHz switching frequency its continuous current drops (for similar 100A drives) to around ~35A, meaning at high speeds the thermal load and switching losses increase significantly. Thus for high-speed or high-frequency applications, derate the motor current or ensure excellent cooling.

How should the cooling be managed when installing this drive in a control cabinet?

The internal blower must have unobstructed airflow, and cabinet design should avoid condensate or humid air; fans should run even when the machine is off until temperature equalizes to avoid condensation risks.

What are the safety or shutdown triggers related to temperature in these drives?

There are built-in overtemp warnings and shutdowns for the motor and the amplifier heatsink; e.g. if the heatsink exceeds its limit or internal blower fails, the drive will reduce output or shut down to protect itself.

How does insulation class C affect installation and maintenance?

Insulation class C means the drive can tolerate higher internal insulation temperatures (up to ~140-155°C or more depending on motor), but still requires attention to ambient temperature, ventilation, and heat dissipation to avoid long-term degradation.

In what real-world automation scenarios is a 100A rated DIAX04 series drive particularly advantageous?

In applications with high inertia loads—e.g. robotic arms, large machine tools, printing or packaging equipment—where large torque and rapid acceleration are required, the 100A rating gives headroom; also in systems needing regeneration or braking, the power handling helps

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Internal Product Review

The HDS03.2-W100N-HS91-01-FW, by Bosch Rexroth Indramat, is a drive controller designed for high-efficiency operation. It features a 100 A rated current and utilizes SERCOS communication for seamless integration with the DIAX04 controller family. This product is ideal for use in automation, robotics, and CNC machinery where precise control and cooling are essential.