Model Code Definition

DKC = ECODRIVE full digital servo drive family

XX.3 = Unspecified series number, Revision3 hardware with fieldbus option slot; cooling type (forced fan / natural cooling) differs by XX code

040 = Continuous rated output:40Arms

7 = High voltage grade, 3-phase AC380~480V input, nominal DC bus 700VDC

FW = Standard universal basic firmware without electronic cam & master-slave electronic gearing functions

Technical Specifications

Main Power: 3Φ AC380~480V ±10%,50/60Hz; independent external DC24V control supply

DC Bus:700VDC nominal voltage, built-in pre-charge circuit and internal dynamic brake unit

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

Dimension: H360mm, D230~261mm; width changes per confirmed XX series, IP20 DIN cabinet installation

Ambient:0~45℃ full-load operation, derated up to 55℃; storage -35~+85℃; altitude ≤1000m; RH＜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 + resolver, isolated onboard 5V encoder supply

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

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

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

Core Functions

Full closed-loop position/speed/torque triple regulation; supports analog speed control, pulse positioning, DI-triggered multi-step fixed positioning. Integrated STO safe torque-off function and complete fault protection against overcurrent, bus over/undervoltage, IGBT overheat and encoder disconnection with front LED fault indication. No advanced electronic cam and synchronization features compared to FM firmware variant.

Application Fields

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

Operation & Maintenance Instructions

Type7 high voltage unit only for three-phase 380~480V input; single-phase 220V connection leads to continuous undervoltage alarm and insufficient torque.

Arrange cabinet ventilation clearance complying with final confirmed series specification to avoid overheat shutdown.

External high-power braking resistor is required for frequent forward-reverse cyclic operation to prevent internal brake burnout.

Parameter tuning needs matched DriveTop software version for FW firmware; parameters cannot be directly copied from FM-version drives.