Model Code Definition

DKC = ECODRIVE full digital servo drive family code

XX.3 = Undefined hardware series, Revision 3 design with optional fieldbus expansion slot; cooling mode (fan / natural convection) varies per actual XX series

040 = Nominal continuous output current: 40Arms

7 = High voltage variant, 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 supply

DC Bus: Rated 700VDC, integrated pre-charge circuit and internal dynamic brake unit

Output Performance: 40A continuous rating, 250% overload sustainable for 300ms, optional 4kHz / 8kHz PWM carrier, max output frequency 800~1000Hz

Dimension: Height 360mm, Depth 230~261mm; Width changes subject to confirmed XX series; IP20 DIN cabinet mounting

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

Interface & Communication Configuration

Power Terminals: L1/L2/L3 mains input, U/V/W motor output, dedicated terminal for external braking resistor

Encoder Port: 15pin D-SUB dual feedback for TTL incremental ABZ encoder and resolver, isolated onboard 5V encoder power

Digital I/O: Standard DI/DO for drive enable, hardware limit, home search and motor holding brake control

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

Communication: Front RS232 for DriveTop parameter setting; Profibus-DP / CANopen / SERCOS available via optional daughterboard based on actual series hardware layout

Core Functions

Basic three-loop closed-loop control of position/speed/torque. Supports analog speed regulation, pulse positioning and digital-input triggered multi-step positioning. Full protection against overcurrent, bus over/undervoltage, module overheat and encoder break with front LED fault codes. Electronic cam and electronic gearing functions exist only if suffix is FM; FW version excludes these advanced motion features.

Application Fields

Medium-load CNC feed axes, rotary printing machines, medium winding & slitting equipment, automatic packaging and component assembling production lines.

Operation & Maintenance Instructions

Type-7 high voltage model exclusively uses three-phase 380~480V supply; single-phase 220V connection causes persistent DC bus undervoltage alarm.

Follow specified cabinet ventilation clearance after finalizing XX series to avoid overheating shutdown.

External braking resistor is required for frequent forward-reverse cyclic operation to protect internal brake circuit.

Commission DriveTop software matching final FW or FM firmware version once full part number is confirmed.