Model Code Definition

DKR：DIAX high-power independent spindle drive series

03：DIAX03 third-gen hardware platform

.1：Power main unit hardware revision V1

W：Built-in axial fan forced air cooling

200：Continuous rated output current 200Arms

B：Onboard integrated internal brake bleeder chopper

BE：SERCOS fiber digital bus control PCB（digital CNC bus, opposite BA analog ±10V command board）

23：Top-grade full-function SERCOS control card, dual feedback, complete C-axis, rigid tapping, electronic cam + high-precision electronic gearing, dual U2+U3 IO expansion slots（higher configuration than mid-range BE12）

01：Control board hardware revision V01

-FW：Factory preset DSM memory card + preloaded ESM03 firmware, ready commissioning directly after power-up

Technical Specifications

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

Nominal DC Bus：700VDC

Output Rating：Continuous 200A RMS; 250% overload sustain 300ms, 300% instantaneous peak overload; max output frequency 1200Hz, match ~62kW spindle motor; default PWM carrier 4kHz, optional 8kHz with partial current derate

Brake Configuration：Built-in B chopper; external braking resistor only required for high-inertia frequent emergency stop working conditions

Cooling：Integrated cabinet blower, total power loss ~1380W

Protection Grade：IP20 per EN60529, vertical cabinet exclusive mounting

Ambient Condition：0~+45℃ full-load operation, automatic output derate over 45℃; storage -30~+85℃; altitude ≤1000m; relative humidity＜90% non-condensing

Dimension & Net Weight：H822×W350×D353mm, approx 50.8kg

Compatible Motors：Indramat 1MB、2AD、ADF、LAF、LSF series spindle motors

Interface & Communication Configuration

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

SERCOS Port：Dual-channel fiber optic SERCOS real-time bus for CNC digital speed/position command transmission

Feedback Connectors：Two independent 15Pin D-SUB ports, configurable resolver + TTL incremental encoder dual feedback via drive parameter

Onboard IO：Standard fixed 10DI/7DO digital IO + spare dual U2/U3 expansion slots for optional IO modules（unique for BE23 vs single slot BE12）

Debug Interface：Front-panel RS232(9600/19200Baud,max15m)+expandable RS485(max500m), used 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 occupied by factory pre-programmed DSM card（core difference versus non-FW blank slot version）

Core Functions

Full torque-speed-position three closed-loop spindle control; BE23 full-feature mainboard supports continuous C-axis positioning, rigid tapping, electronic cam programming, high-accuracy electronic gear synchronization（core upgrade over BE12 without tapping/cam function）; comprehensive multi-layer protection: overcurrent, DC bus over/undervoltage, IGBT overheat, fan failure, feedback cable break, front LED digital fault code indication; FW pre-flashed firmware variant: power on directly to input motor parameters without extra firmware programming。

Application Fields

High-precision vertical machining center spindle with rigid tapping & full C-axis function, heavy-duty high-speed woodworking spindle, high-end printing winding/unwinding equipment, SERCOS bus CNC machine tool spindle system retrofit upgrade.

Operation & Maintenance Instructions

Only connect three-phase AC400~480V industrial mains; single-phase input triggers DC bus undervoltage lockout without power output.

Reserve ≥90mm upper/lower cabinet ventilation clearance to guarantee fan heat dissipation, avoid overheat shutdown or output derating.

Built-in B-type brake chopper: no mandatory external brake resistor under regular start-stop; configure matched braking resistor for high inertia & frequent emergency stop applications.

BE23 high-spec control board cannot interchange with BE12/BA/BT series control boards during maintenance replacement.

FW model with pre-installed DSM+firmware: directly commission after power supply via IndraWorks; damaged DSM card needs dedicated BE23-specific replacement card + firmware rewrite.