Model Code Definition

DKR = DIAX02 dedicated spindle drive product family

02 = 2nd generation DIAX hardware platform

.1 = Hardware Revision Level 1

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

N = Regenerative mains feedback topology, no on-board brake chopper; external braking resistor required for heavy-duty emergency stop

BE = SERCOS digital fiber bus command board for digital CNC linkage

12 = Board configuration code: resolver + TTL incremental encoder dual feedback, integrated C-axis positioning & rigid tapping dedicated hardware

01 = Factory standard hardware configuration version

Technical Specifications

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

DC Bus Nominal Voltage: 700VDC

Output Rating: Continuous 200A RMS, 250% overload for 300ms, 300% peak short-duration overload; max output frequency 1200Hz, matched motor rated power 42~55kW

Braking Mode: N-type full mains energy regeneration; external high-power braking resistor mandatory for frequent high-inertia rapid deceleration

Cooling: Integral cabinet axial fan cooling, total internal power loss approx.1750W

Protection Class: IP20 for cabinet mounting per IEC standard

Ambient Condition: Full-load operation 0~+45℃, output derating above +45℃; storage temperature -35℃~+85℃, installation altitude ≤1000m, relative humidity＜90% non-condensing

Dimension: H1000×W440×D290mm, net weight ≈104kg

Interface & Communication Configuration

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

Command Interface (BE12): SERCOS optical fiber bus digital command, fully digital speed/torque setpoint via fiber link with host CNC controller

Feedback Ports: Dual 15pin D-SUB connectors for resolver and TTL incremental encoder signals (BE12 exclusive hardware layout)

Slot Layout: U1 fixed for BE12 SERCOS mainboard, U2/U3/U4 reserved for optional I/O or encoder extension 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 thermal monitoring, brake control, fault relay contact output, drive ready status signal terminals

Core Functions

Full digital triple-loop (position/speed/torque) spindle dedicated regulation; wide constant-power speed range, C-axis indexing positioning, rigid tapping and electronic gear synchronization embedded. N-type regeneration design cuts thermal accumulation under continuous braking cycles. Comprehensive protection against overcurrent, DC bus over/under voltage, power module overtemperature, feedback loss and fan malfunction with front LED fault indication. Compatible with removable FW firmware card (optional suffix FW) for parameter backup and cross-drive parameter migration.

Application Fields

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

Operation & Maintenance Instructions

Only connect to rated three-phase 400~480V industrial mains; single-phase input triggers persistent DC bus undervoltage alarm and prevents full-power output.

Reserve minimum 80mm ventilation clearance top and bottom of cabinet to guarantee fan airflow and avoid over-temperature derating shutdown.

N variant has no built-in brake chopper: regular light-load deceleration relies on mains regeneration; install external high-power braking resistor for frequent heavy inertia emergency stop to eliminate overvoltage tripping.

Parameter commissioning requires matched IndraWorks software for DIAX02 SERCOS firmware; BE-series SERCOS firmware is non-interchangeable with BA analog board firmware.

Spare part replacement with FW option: directly transplant original firmware card to restore all drive parameters without repeated motor identification.