Model Code Definition

DKC = ECODRIVE full digital servo drive product family code

2.3 = Series 2 Revision 3 compact hardware design with expansion slot for optional fieldbus daughterboard

040 = Nominal continuous output current: 40Arms

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

FW = Standard universal basic firmware supporting triple-loop control without embedded electronic cam and electronic gearing functions compared to FM dedicated firmware

Technical Specifications

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

DC Bus: Nominal 700VDC, integrated pre-charge soft-start circuit and internal dynamic brake bleeder unit

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

Dimension & Weight: W55mm × H312mm × D230mm, net weight approx 4.7kg, internal cooling fan equipped, IP20 vertical DIN rail cabinet installation

Ambient Condition: Full-load operating temperature range 0~45℃, derated operation available up to 55℃; storage temperature -35℃~+85℃; rated installation altitude ≤1000m; relative humidity＜90% non-condensing; minimum 40mm ventilation clearance required at top and bottom of unit

Interface & Communication Configuration

Power Terminals: L1/L2/L3 three-phase mains input terminals, U/V/W motor power output terminals, dedicated terminal block for external braking resistor connection

Encoder Interface: 15pin D-SUB dual feedback port compatible with TTL incremental ABZ encoder and resolver, isolated onboard 5V encoder power supply

Digital I/O Terminal: Standard 6DI+6DO onboard terminals for drive enable signal, positive/negative hardware limit, home search trigger and motor holding brake sequential control

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

Debug & Fieldbus: Front panel RS232 serial port for DriveTop parameter commissioning; Profibus-DP, CANopen or SERCOS communication expandable via optional plug-in daughterboard

Core Functions

FW standard firmware implements full closed-loop regulation of position, speed and torque. Three available operation modes: analog voltage speed control, pulse-based position control and multi-step fixed positioning triggered by digital input signals. Integrated STO safe torque-off safety function plus comprehensive fault protection against overcurrent, DC bus over/undervoltage, power module overtemperature and encoder cable break, with front LED numeric fault code indication. No native electronic cam and master-slave synchronization functions.

Application Fields

High-speed automatic packaging production lines, rotary printing equipment, medium-duty winding & slitting machinery, small-size CNC feed axes and multi-axis automated component assembling equipment.

Operation & Maintenance Instructions

Type-7 high voltage variant is exclusively designed for three-phase AC380~480V mains; connection to single-phase 220V supply causes permanent DC bus undervoltage alarm and insufficient output torque.

Compact body with limited heat dissipation area; never install within fully sealed cabinet without proper ventilation clearance.

External high-power braking resistor is mandatory for frequent forward-reverse cyclic operation to avoid internal brake unit overheat burnout.

Parameter upload and download requires corresponding matched DriveTop software version; drive parameters cannot be directly duplicated between FW and FM firmware versions.