Model Code Definition

DKR: Independent cabinet heavy-duty spindle drive of DIAX series

03: 3rd-gen DIAX03 hardware platform

.1: V1 revision of main power board

W: Built-in axial blower forced convection cooling design

200: Continuous rated output current 200Arms

Z: Onboard integrated internal brake bleeder module

BE: SERCOS fiber-optic digital bus control board, no default ±10V analog speed command input

12: Basic cost-effective SERCOS control PCB with standalone RS232 only, limited expansion interface

01: V01 hardware revision of control mainboard

FW: Factory pre-mounted DSM card with pre-flashed standard official firmware

Technical Specifications

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

Nominal DC Bus Voltage: 700VDC

Output Rating: Continuous 200A RMS; 250% overload sustainable for 300ms, 300% instantaneous peak overload; max output frequency 1600Hz, matched for ~62kW Indramat 2AD/ADF AC spindle and 1MB frameless spindle motors; default PWM carrier frequency 4kHz, optional 8kHz with partial current derating

Brake Configuration: Z-type built-in brake chopper, external braking resistor optional only for cyclic heavy-duty deceleration applications

Cooling: Integral cabinet blower, total internal power loss approx 1200W, minimum required cabinet inlet airflow 300m³/h

Protection Class: IP20 per EN60529 standard, vertical cabinet exclusive installation only

Ambient Operation: Full-load continuous operation 0~+45℃, automatic output derating above +45℃; storage temperature -30~+80℃; max installation altitude ≤1000m without performance derating; relative humidity ≤90% non-condensing

Dimension & Net Weight: H822×W350×D353mm, net weight approx 49kg

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

Interface & Communication Configuration

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

SERCOS Bus Port: Dual IN/OUT fiber-optic SERCOS ports supporting multi-axis ring daisy-chain layout, no onboard analog speed command terminal

Serial Interface (BE12 Exclusive): Single front-panel RS232 serial port for local IndraWorks parameter tuning & fault diagnosis, max wiring distance 15m; no onboard RS485 for multi-drive remote networking

Motor Feedback Connector: 1×15Pin D-SUB port compatible with resolver, TTL incremental encoder, sine/cosine high-resolution encoder signals

Onboard Digital IO: Fixed base 8DI/4DO terminal block; limited reserved U-type expansion slots for optional auxiliary plug-in modules

Auxiliary Terminal Strip: Drive enable signal, hardware E-stop input, motor PTC thermal protection, fault dry-contact relay output, drive-ready status terminals

DSM Slot: Pre-installed factory-programmed DSM memory card with embedded standard firmware (FW version), no extra firmware programming required before startup

Core Functions

Full digital three-loop (current-speed-position) closed-loop regulation via real-time SERCOS fiber bus communication; BE12 hardware limits exclude onboard RS485 remote bus access; standard spindle functions include constant-speed regulation, high-precision C-axis rotary positioning and rigid tapping; electronic gearing & multi-segment electronic cam available via limited U-slot optional expansion modules; comprehensive protection against overcurrent, DC bus over/undervoltage, IGBT overheat, fan failure and feedback wire breakage with front LED fault code indication; FW pre-flashed unit can be powered on and commissioned directly after parameter setup without separate DSM programming or firmware flashing via IndraWorks software.

Application Fields

Standard SERCOS-bus CNC machining center main spindle control, mid-range multi-spindle synchronous textile & packaging production equipment, conventional CNC retrofit projects without remote centralized multi-drive monitoring demand, general heavy-duty machine tool spindle with low fieldbus expansion requirement.

Operation & Maintenance Instructions

Apply rated three-phase AC400~480V industrial input strictly; single-phase power supply triggers DC bus undervoltage protection lockout with zero drive output.

Reserve minimum 90mm upper/lower cabinet ventilation clearance to avoid insufficient blower airflow leading to overheat shutdown and output derating; maintain ≥100mm spacing between power cables and control/signal cables for EMC compliance.

Z-type integrated brake chopper removes mandatory external braking resistor mounting; install matched external resistor only under ultra-frequent regenerative deceleration working conditions.

BE12 basic control PCB cannot be directly replaced with BE23/BE31/BE43/BE48 mainboards; mismatched hardware causes serial communication failure or abnormal spindle positioning accuracy.

Preserve original parameter backup during maintenance; if DSM replacement is needed, reload matching factory-standard firmware version consistent with original FW edition via IndraWorks.