DKR02.1-W200B-BE23-01-FW | Bosch Rexroth Indramat DIAX02 Spindle Servo Drive
June 04, 2026

DKR02.1-W200B-BE23-01-FW | Bosch Rexroth Indramat DIAX02 Spindle Servo Drive

Product Overview OEM part number: R911310562, DIAX02 high-power spindle-specific servo driver, equipped with pre-installed standard DSM02.3 firmware module (FW suffix indicates version), featuring built-in braking chopper + onboard BE23 specification SERCOS optical fiber bus card, the entire machine integrates axial flow fan for forced air cooling, the firmware is of detachable plug-and-play design, and the parameters are stored on the FW firmware board; compatible with 2AD/ADF AC spindle motors, 1MB frameless spindle, LAF/LSF linear motors, targeting heavy-duty CNC, offset printing, and forging equipment spindle drives.

Description

Model Code Defin

Model Code Definition

DKR = DIAX02 spindle drive product series

02 = DIAX second-generation hardware platform

.1 = Hardware revision version 1

W200 = Rated continuous output 200 Arms, W = Built-in fan air-cooling

B = Integrated built-in energy braking chopper (built-in discharge circuit, different from N-type grid feedback models)

BE = SERCOS optical full-digital communication bus interface

23 = Interface configuration code: dual 15-pin D-SUB, compatible with resolver + TTL incremental encoder dual feedback, standard C-axis spindle positioning hardware

01 = Factory hardware configuration version number

FW = Factory Wired / Preloaded Standard Firmware, the entire machine is pre-installed with DSM02.3 independent firmware storage card, the firmware is separated from the drive body and can be separately disassembled for backup parameters Technical Specifications

Main Input: 3-phase AC 400~480V ±10%, 50/60Hz; Independent DC 24V control auxiliary power supply

DC bus nominal voltage: 700VDC (400V industrial power supply grade)

Output capacity: Continuous rated 200A, 250% overload can last for 300ms, maximum output frequency 1200Hz; Matching motor continuous power 42~55kW

Built-in braking: Type B integrated chopper, continuous discharge power 1.5kW, peak braking energy 240kW·s, normal deceleration does not require external braking resistor

Cooling: Integrated axial fan of the entire machine for forced air cooling, total power loss of the machine is approximately 1800W

Protection grade: IP20, cabinet installed vertically

Environmental conditions: Full-load operation 0~45℃, 55℃ reduced-load operation; Storage -30~+85℃, altitude ≤1000m, relative humidity <90% without condensation

Shape and weight: H720×W320×D380mm, net weight ≈104kg Interface & Communication Configuration

Power terminals: Large-sized connection terminals L1/L2/L3 for three-phase incoming lines, U/V/W for motor three-phase output

Feedback interface: Dual 15-pin D-SUB, one for rotary encoder, one for TTL encoder for dual closed-loop feedback (fixed hardware layout of BE23)

Slot configuration: U1 slot pre-installs BE23 type SERCOS optical communication board, U2 to U5 are reserved for function expansion slots

Communication bus: SERCOS optical digital bus, for multi-drivers synchronous linkage; front-mounted RS232 debugging serial port for IndraWorks parameter reading and writing, firmware upgrade

I/O terminals: Drive enable, hard limit, spindle orientation, motor brake linkage, fault relay with passive contact output

Firmware configuration: FW is standardly equipped with detachable DSM02.3 firmware card, all machine parameters are saved in the firmware module, changing the driver can directly transplant the firmware without redefining parameters Core Functions

Three-axis full closed-loop control (position / speed / torque), fully functional spindle control for CNC machines: rigid tapping, C-axis indexing positioning, constant power wide-speed range speed regulation; built-in B chopping circuit for emergency stop / power failure rapid energy consumption braking; complete protection: overcurrent, bus over/under voltage, IGBT over-temperature, feedback break, fault LED code display; FW firmware standardly includes spindle basic program, and reserves electronic cam, master-slave synchronization expansion hardware resources. Application Fields

Heavy-duty vertical/lateral machining center spindle, large-scale offset rotary printing equipment, heavy-duty chemical fiber high-speed winding spindle, large-stroke linear servo equipment, hot forging forming main drive device. Operation & Maintenance Instructions

It is only compatible with three-phase 400~480V industrial power supply. Single-phase 220V power supply will continuously report bus undervoltage and insufficient output torque.

The cabinet is reserved with a minimum of 160mm ventilation space on the top and bottom to ensure the air intake and exhaust of the fan and avoid overheating and power-off due to excessive temperature.

For high-frequency and high-inertia emergency stop conditions, the built-in chopper is used. Only for ultra-high-frequency cycle braking, an additional large-power external discharge resistor needs to be selected.

For the FW model, the core maintenance: the DSM02.3 firmware card can be unplugged and inserted to back up parameters. Drivers of the same model can be mutually interchangeable with firmware; debugging must use the IndraWorks software with the matching DSM02.3 firmware version; the firmware cannot be mixed with BA analog quantities, other BExx specifications models.

When replacing the same model driver during maintenance, simply migrate the original FW firmware to restore the device parameters with one click.


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