Model Code Definition

DKR：DIAX high-power independent spindle drive series

03：DIAX03 3rd generation hardware platform

.1：Main power unit hardware revision V1

W：Built-in cabinet axial fan air cooling

200：Continuous rated output current 200Arms

N：No integrated internal brake bleeder chopper, regenerative energy requires external braking resistor dissipation

BA：Analog ±10V voltage command control PCB (no SERCOS fiber bus, opposite BE SERCOS series)

01：Entry-level basic analog control board, only analog speed control + standard fixed IO

01：Control board hardware revision V01

-FW：Factory pre-programmed DSM memory card + pre-flashed official drive firmware, ready-to-run after power-up

Technical Specifications

Input Power：3Φ AC400~480V ±10% 50/60Hz; isolated 24VDC auxiliary control power supply

Nominal DC Bus：700VDC

Output Rating：Continuous 200A RMS; 250% overload sustain 300ms, 300% instantaneous peak overload; max output frequency 1600Hz, match approx 62kW Indramat spindle motor; default PWM carrier 4kHz, optional 8kHz with partial current derate

Brake Configuration：No internal bleeder, external high-power braking resistor mandatory for all deceleration/regenerative working conditions

Cooling：Integrated built-in blower, total power loss ~1370W

Protection Grade：IP20 per EN60529, only vertical cabinet mounting allowed

Ambient Operation：0~+45℃ full-load run, automatic output derate above 45℃; storage -30~+85℃; altitude ≤1000m; RH＜90% non-condensing

Dimension & Net Weight：H822×W350×D353mm, approx 50.2kg

Compatible Motors：Indramat 1MB,2AD,ADF,LAF,LSF series AC spindle & servo motors

Interface & Communication Configuration

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

Command Port：Exclusive ±10V analog voltage interface (0~±10V corresponds full rated speed), no SERCOS fiber optic bus connector

Feedback Connector：Single 15Pin D-SUB port, support resolver or TTL incremental encoder single-channel feedback (no dual feedback slot vs BE23 high-end board)

Onboard IO：Fixed 8DI/5DO standard digital IO, no U2/U3 optional IO expansion slots

Debug Interface：Front panel RS232 (9600/19200 baud) for IndraWorks parameter tuning & fault diagnosis

Auxiliary Terminal Block：Drive enable, hardware E-stop, motor PTC thermal detection, fault relay dry contact, drive ready status signal terminals

DSM Card Slot：Front slot pre-installed factory programmed DSM card (core difference vs non-FW blank slot version)

Core Functions

Current-speed double closed-loop analog spindle control; BA01 base board only supports analog speed adjustment, without C-axis positioning, rigid tapping, electronic cam & electronic gear synchronization functions; full multi-protection including overcurrent, DC bus over/undervoltage, IGBT overtemperature, fan failure, feedback wire break, front LED digital fault code display; FW pre-firmware variant: direct parameter setup via IndraWorks after power-on without extra firmware flashing。

Application Fields

Economical analog-controlled CNC milling machine spindle, conventional woodworking high-speed spindle, old analog CNC machine retrofit, general printing winding/unwinding low-precision spindle equipment。

Operation & Maintenance Instructions

Only feed three-phase AC400~480V industrial input, single-phase supply triggers DC bus undervoltage lockout and no output.

Reserve ≥90mm upper/lower cabinet clearance for blower ventilation to avoid overheat shutdown or current derating.

N-type no internal chopper: external matched braking resistor must be configured regardless of regular or frequent stop working mode.

BA01 analog control board cannot cross-replace with BE series SERCOS mainboard during spare replacement.

FW model with pre-mounted DSM card: direct commissioning after wiring; damaged DSM requires dedicated BA01-specific replacement card plus parameter backup rewrite。