Model Code Definition

DKC = ECODRIVE full digital servo drive series identifier

XX.3 = Undefined hardware series, Revision 3 structure with optional fieldbus expansion slot; cooling mode (fan cooling / natural cooling) varies by specific XX code

100 = Rated continuous output current: 100Arms

7 = High voltage grade, three-phase AC380~480V input, nominal DC bus 700VDC

Technical Specifications

Main Power Supply: 3-phase AC380~480V ±10%, 50/60Hz; separate external DC24V auxiliary control power supply

DC Bus: Nominal 700VDC, built-in pre-charge circuit and integrated internal dynamic brake bleeder

Output Performance: 100A continuous rating, 250% overload sustain for 300ms, optional 4kHz/8kHz PWM carrier frequency, max output frequency 800~1000Hz

Dimension: Height 360mm, Depth 260~320mm; width differs based on confirmed XX series, IP20 vertical DIN cabinet installation

Ambient Rating: Full-load operating 0~45℃, derated operation up to 55℃; storage -35℃~+85℃; installation altitude ≤1000m; relative humidity＜90% non-condensing

Interface & Communication Configuration

Power Terminals: Heavy-duty terminals for L1/L2/L3 mains input, U/V/W high-current motor output, independent terminal for external high-power braking resistor

Encoder Port: Dual 15pin D-SUB interface supporting TTL incremental ABZ encoder + resolver dual feedback, isolated onboard 5V encoder power supply

Digital I/O: Standard DI/DO terminals for drive enable, hardware limit, homing trigger and motor holding brake logic control

Command Input: ±10V analog speed/torque reference, pulse+direction position command input

Communication: Front RS232 port for DriveTop parameter setup; Profibus-DP / CANopen / SERCOS expandable via optional daughterboard subject to actual hardware series

Core Functions

Standard three-loop closed-loop control of position/speed/torque; supports analog speed regulation, pulse positioning and DI-triggered sequential fixed positioning. Complete protection against overcurrent, bus over/undervoltage, module overheat and encoder break with front LED fault code display. Electronic cam & master-slave gearing available only if suffix is FM; FW version excludes above advanced motion functions.

Application Fields

Heavy-duty film/fabric winding & slitting lines, large rotary printing equipment, heavy-load CNC feed axes and industrial automated forging assembly lines.

Operation & Maintenance Instructions

Type-7 high voltage model only applies to three-phase AC380~480V power; single-phase 220V input triggers persistent DC bus undervoltage alarm and insufficient output torque.

Reserve specified upper/lower cabinet ventilation clearance after confirming exact XX series to avoid overheat shutdown.

Frequent forward-reverse reciprocating load requires matched external high-power braking resistor to prevent internal bleeder burnout.

Parameter commissioning requires DriveTop software matching final FW/FM firmware suffix.