Model Code Definition

DKR = Exclusive spindle drive product line of DIAX02 platform

02 = 2nd generation DIAX hardware generation

.1 = Hardware revision version 1

W = Built-in cabinet axial blower forced cooling design

200 = Continuous rated output current: 200Arms

Z = Onboard integrated internal brake chopper with embedded bleeder circuit, internal energy dissipation for regular deceleration without mandatory external braking resistor

BE = SERCOS optical fiber digital bus control board for CNC digital command transmission

23 = Card configuration specification: Sine-wave sinusoidal encoder + resolver dual feedback hardware, integrated dedicated circuit for C-axis positioning, rigid tapping and high-precision electronic gearing

01 = Fixed factory standard hardware configuration edition

FW = Pre-mounted removable firmware storage card, stores complete drive parameters, motor identification data and application firmware for quick spare replacement

Technical Specifications

Input Power Supply: 3Φ AC400~480V ±10%, 50/60Hz; isolated DC24V auxiliary control power input

Nominal DC Bus Voltage: 700VDC

Output Performance: Continuous rated 200A RMS, 250% overload sustainable for 300ms, 300% instantaneous peak overload; max output frequency 1200Hz, compatible with 42~55kW rated spindle motors

Braking Performance: Z-type integrated internal bleeder; standard light/medium-load deceleration via internal heat dissipation, external high-power braking resistor required only for frequent heavy-inertia emergency stop

Cooling Method: Built-in axial fan forced convection cooling, total internal power loss approx.1760W

Protection Class: IP20 per IEC standard, vertical cabinet installation

Ambient Operating Condition: Full-load operating temperature 0~+45℃, automatic output derating over +45℃; storage temperature -30~+85℃; installation altitude ≤1000m; relative humidity＜90% non-condensing

Overall Dimension: H1010×W435×D375mm, net weight ≈103.8kg

Interface & Communication Configuration

Power Terminals: L1/L2/L3 three-phase mains heavy input terminals, U/V/W high-current motor power output terminals

Command Interface(BE23): Full digital SERCOS fiber bus, optical fiber connection with upper CNC controller for speed/torque setpoint delivery

Feedback Connectors: Dual 15pin D-SUB ports separately for sine-wave encoder and resolver feedback signals (unique BE23 hardware layout)

Slot Layout: U1 fixed slot pre-installed with BE23 SERCOS mainboard; U2/U3/U4 spare slots for optional digital I/O or extended encoder modules

Debug Port: Front panel RS232 serial port for IndraWorks parameter setting, fault diagnosis and firmware upgrade

General I/O Terminals: Drive enable input, hardware emergency stop, motor thermal protection signal, spindle brake interlock, fault relay dry-contact output, drive ready status output terminals

FW Exclusive Slot: Dedicated front card slot for pluggable FW memory module for full parameter backup and migration

Core Functions

Full digital triple closed-loop control (position/speed/torque) customized for spindle application, featuring wide constant-power speed range, C-axis indexing positioning, rigid tapping and electronic gear synchronization embedded in standard firmware. Z-type onboard brake chopper reduces external wiring workload under conventional deceleration conditions. Complete multi-layer protection including overcurrent, DC bus over/undervoltage, power module overtemperature, feedback signal missing and cooling fan breakdown with front LED fault code display. Equipped FW card enables one-click full parameter copy during drive replacement, omitting repeated motor auto-tuning and identification work.

Application Fields

Vertical & horizontal CNC machining center main spindle driving unit, rotogravure rotary printing main transmission, heavy high-speed textile winding spindle, forging equipment main drive and old machine tool CNC renovation projects.

Operation & Maintenance Instructions

Only connect with rated three-phase AC400~480V industrial power; single-phase input will trigger persistent DC bus undervoltage alarm and lock full-load output.

Reserve minimum 90mm upper and lower ventilation clearance inside control cabinet to guarantee fan air circulation and avoid over-temperature shutdown caused by output derating.

Z-version with built-in brake chopper: internal bleeder satisfies regular deceleration; mount external high-power braking resistor for frequent heavy inertia emergency stop to prevent DC bus overvoltage trip.

Parameter commissioning needs matched SERCOS-edition IndraWorks software; BE-series SERCOS firmware cannot be interchanged with BA analog control board firmware.

During spare drive replacement: remove original FW card and plug into new replacement unit to restore all parameters instantly without secondary debugging.