Model Code Definition

DKR = DIAX02 dedicated spindle drive product line

02 = 2nd generation DIAX hardware platform

.1 = Hardware Revision Version 1

W200 = Continuous rated output current 200Arms; W = integrated cabinet blower forced cooling

Z = Built-in internal brake chopper (onboard bleeder resistor circuit), internal energy dissipation without mandatory external braking resistor for normal deceleration

BE = SERCOS fiber-optic digital bus control board for CNC digital command linkage

23 = Board configuration code: Sinusoidal sine-wave encoder + resolver dual feedback, embedded C-axis positioning, rigid tapping and high-precision electronic gearing hardware circuit

01 = Factory standard fixed hardware configuration version

Technical Specifications

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

Nominal DC Bus Voltage: 700VDC

Output Performance: Continuous rated 200A RMS, 250% overload sustain 300ms, 300% short-duration peak overload; maximum output frequency 1200Hz, compatible with 42~55kW rated spindle motors

Braking Characteristic: Z-type with integrated internal brake chopper; regular deceleration via onboard bleeder heat dissipation, only high-inertia frequent emergency stop needs external high-power braking resistor

Cooling Mode: Integral cabinet axial fan forced-air cooling, total internal power loss approx.1760W

Protection Grade: IP20, standard cabinet vertical mounting per IEC specification

Ambient Condition: Full-load operating temperature 0~+45℃, automatic output derating above +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 input terminals, U/V/W heavy-duty motor power output terminals

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

Feedback Ports: Dual 15pin D-SUB connectors for sine-wave sinusoidal encoder and resolver signals (unique BE23 hardware layout)

Slot Layout: U1 fixed for BE23 SERCOS mainboard; U2/U3/U4 reserved for optional digital I/O or extended encoder modules

Debug Port: Front-panel RS232 serial port for IndraWorks parameter setting and firmware upgrade

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

Core Functions

Full digital triple closed-loop regulation (position/speed/torque) dedicated for spindle application, wide constant-power speed range, C-axis indexing positioning, rigid tapping and electronic gear synchronization embedded firmware functions. Z-type built-in brake chopper simplifies wiring for conventional deceleration scenarios. Comprehensive multi-protection logic including overcurrent, DC bus over/undervoltage, power module overtemperature, encoder signal loss and cooling fan failure, with front LED fault code indication. Compatible with optional detachable FW firmware card for full parameter backup and cross-unit parameter transplantation.

Application Fields

Legacy vertical/horizontal CNC machining center spindle drive, gravure rotary printing main transmission, high-speed textile winding spindle, traditional forging main drive and old equipment CNC retrofitting projects.

Operation & Maintenance Instructions

Only connect to rated three-phase 400~480V industrial mains; single-phase incoming power causes persistent DC bus undervoltage alarm and prohibits full-load output.

Reserve minimum 90mm upper and lower ventilation clearance inside cabinet to guarantee smooth fan airflow and avoid over-temperature derating shutdown.

Z variant owns onboard brake chopper: common light/medium-load deceleration relies on internal bleeder; install external high-power braking resistor for frequent heavy-inertia emergency stop to prevent DC bus overvoltage trip-off.

Parameter commissioning needs matched DIAX02 SERCOS version IndraWorks software; BE-series SERCOS firmware cannot be interchanged with BA analog control board firmware.

Units with optional FW suffix: replace spare drive by directly transplanting original firmware card to restore all parameters without repeated motor identification and auto-tuning.