Model Code Definition

DKR = DIAX02 spindle servo driver family

02 = DIAX02 second-generation hardware platform

.1 = Hardware Revision Version 1

W200 = Peak rated output current 200Arms

First B = Built-in internal bleeder chopper (with integrated dynamic brake power circuit, contrast N-type which is grid regenerative without internal bleeder)

Second B = Standard INTERBUS fieldbus onboard interface (fixed bus configuration, no analog BA / SERCOS BE option)

Technical Specifications

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

DC Bus：Nominal 700VDC for 400V class industrial mains

Output Rating：Max peak current 200A; continuous rated output 141A(55kW)/110A(42kW) dual rating; 250% overload lasts 300ms, max spindle output frequency up to 1200Hz

Brake Bleeder Parameter：Internal integrated bleeder, continuous dissipation 1.5kW, peak braking energy capacity 240kW·s, no need external braking resistor for regular deceleration

Cooling：Integrated built-in axial blower forced air cooling, total drive heat loss 1800W

Dimension & Weight：H720×W320×D380mm, net weight approx 104kg, IP20 cabinet vertical mounting

Ambient Condition：Full-load operation 0~45℃, derated run up to 55℃; storage -30~+85℃; installation altitude ≤1000m, RH＜90% non-condensing

Interface & Communication Configuration

Power Terminals：Large heavy-duty screw terminal block for L1/L2/L3 mains input, U/V/W motor output

Feedback Ports：Dual 15pin D-SUB connectors, compatible resolver + TTL incremental encoder dual feedback, dedicated spindle closed-loop detection

Plug-in Slot：5 internal expansion slots(U1~U5) for optional functional daughterboard expansion

Control I/O：Terminal strip for drive enable, hardware limit switch, spindle orientation, motor brake sequential control, fault relay dry contact output

Communication：Factory fixed INTERBUS bus communication (second B suffix definition), front RS232 debug port for IndraWorks parameter uploading/downloading, ESM02.3 standard firmware preloaded

Core Functions

Three-loop full closed-loop regulation(position/speed/torque); full spindle dedicated functions: rigid tapping, C-axis spindle positioning/orientation, constant power wide-range speed regulation. Internal B-type bleeder realizes rapid dynamic braking under emergency stop and power cutoff, different from N-type grid feedback braking design. Complete multi-protection: overcurrent, bus over/undervoltage, IGBT overtemperature, feedback disconnection, fault indicator LED display, standard FW basic firmware without electronic cam and master-slave sync functions.

Application Fields

Heavy vertical machining center main spindle, large rotary gravure printing machine, heavy textile winding spindle, high-power linear servo automation, metal forging main drive equipment.

Operation & Maintenance Instructions

Only access three-phase 400~480V AC industrial power, single-phase 220V input will trigger persistent DC bus undervoltage fault and insufficient output torque.

Reserve minimum 160mm upper & lower cabinet ventilation clearance to guarantee blower air intake/exhaust, prevent over-temperature shutdown and power derating.

Frequent high-inertia emergency stop can retain original internal bleeder; only ultra-heavy cyclic braking needs additional external high-power bleeder resistor.

Parameter debugging requires matching IndraWorks software compatible with ESM02.3 firmware; parameters cannot be copied interchangeably with BA analog / BE SERCOS variants.