Model Code Definition

DKR：Independent high-power cabinet spindle driver of DIAX series

03：3rd generation DIAX03 hardware platform

.1：Main power board hardware revision V1

W：Integrated axial fan forced convection cooling

200：Continuous rated output current 200Arms

N：No built-in internal brake bleeder chopper, external braking resistor required

BE：SERCOS fiber digital bus control PCB (pure digital bus command, no standard ±10V analog interface)

23：High-end full-function SERCOS control board, full advanced motion algorithm support

01：Control board hardware revision V01

Technical Specifications

Input Power：3Φ AC400~480V ±10% 50/60Hz; independent single-phase AC230V auxiliary control power（200VA）

Nominal DC Bus：700VDC

Output Rating：Continuous 200A RMS; 250% overload sustain 300ms, 300% instantaneous peak overload; max output frequency 1600Hz, matches ~62kW Indramat 2AD/ADF/1MB spindle motor; default PWM 4kHz, optional 8kHz with partial output derate

Brake Setting：Zero internal bleeder circuit, external high-power braking resistor required for all deceleration/regenerative operation

Cooling：Integrated cabinet blower, total power loss ~1370W

Protection Class：IP20 per EN60529, vertical cabinet mounting only

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

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

Compatible Motors：Indramat 1MB frameless spindle, 2AD/ADF AC spindle, LAF/LSF linear synchronous servo motors

Interface & Communication Configuration

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

Bus Interface：Dual IN/OUT SERCOS fiber optic ports for multi-axis daisy-chain bus connection, no analog ±10V speed command terminal

Feedback Port：1×15Pin D-SUB connector, compatible with resolver, TTL incremental encoder, sine/cosine high-resolution encoder

Onboard IO：Expanded 16DI/10DO digital terminal bank + dual reserved U2/U3 expansion slots for optional auxiliary function card（superior to BE11(8DI/5DO)/BE12(12DI/7DO)）

Debug Port：Front RS232 serial port (9600/19200 baud) for IndraWorks parameter tuning, fault diagnosis & parameter backup

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

DSM Slot：Front vacant memory card slot on non-FW model, no factory pre-installed firmware card

Core Functions

Full current-speed-position triple closed-loop digital control via SERCOS fiber bus; BE23 full feature set: basic spindle constant speed, C-axis precision rotary positioning, rigid tapping, full electronic gearing synchronization + multi-segment electronic cam curve operation (core advanced function unavailable on BE11/BE12); complete protective functions: overcurrent, DC bus over/undervoltage, IGBT overheat, fan fault, feedback cable break, front LED digital fault code display; non-FW blank slot unit cannot startup directly after power-on, must install matched programmed DSM card and download dedicated ESM03 firmware via IndraWorks software。

Application Fields

High-end 5-axis CNC machining center SERCOS bus spindle, multi-axis synchronous printing/packaging production line spindle, high-precision CNC lathe with complex C-axis cam machining, old high-grade analog CNC digital upgrade transformation project。

Operation & Maintenance Instructions

Strictly apply three-phase AC400~480V industrial mains; single-phase power input triggers DC bus undervoltage lockout with zero output.

Reserve ≥90mm upper/lower cabinet ventilation clearance to avoid insufficient blower cooling leading to overheat protection shutdown and output derating.

N-type no internal bleeder design: matched external braking resistor must be configured regardless of continuous or intermittent stop mode.

BE23 premium control board cannot be directly interchanged with BE11/BE12 lower-grade mainboard, function mismatch causes abnormal axis jitter or runaway.

Non-FW version: preserve original DSM parameter backup during maintenance; replacement DSM requires full firmware rewrite via IndraWorks.