Model Code Definition

DKC = ECODRIVE full digital servo drive product family

XX.3 = Undefined series number, Revision3 hardware with optional fieldbus daughterboard slot; cooling mode varies between forced fan cooling or natural convection based on actual XX part number

200 = Nominal continuous rated output current: 200Arms

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: Rated 700VDC, built-in pre-charge circuit and high-capacity internal dynamic brake bleeder

Output Performance: 200A continuous rating, 250% overload withstand for 300ms, optional 4kHz / 8kHz PWM carrier frequency, maximum output frequency 800Hz

Dimension: Height 420~465mm, Depth 300~330mm; width changes according to confirmed XX series; IP20 vertical cabinet installation

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

Interface & Communication Configuration

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

Encoder Port: Dual 15pin D-SUB feedback ports compatible with TTL incremental ABZ encoder and resolver, isolated onboard 5V encoder power supply

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

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

Communication: Front RS232 for DriveTop parameter setup; Profibus-DP / CANopen / SERCOS available via optional daughterboard depending on finalized series hardware

Core Functions

Three-loop closed-loop control for position/speed/torque; supports analog speed regulation, pulse positioning and DI-triggered sequential fixed positioning. Complete fault protection including overcurrent, DC bus over/undervoltage, power module overheat and encoder break with front LED fault codes. Electronic cam and master-slave gearing synchronization only available with FM suffix; FW version excludes these advanced motion features.

Application Fields

Heavy-duty roll slitting production line, large rotary printing press, heavy fabric/plastic winding machine, high-power CNC main spindle drive and heavy gantry automation equipment.

Operation & Maintenance Instructions

Type7 high voltage unit must connect to three-phase 380~480V supply; single-phase 220V input results in continuous DC bus undervoltage alarm and insufficient torque.

Reserve sufficient top and bottom cabinet ventilation clearance as specified by the confirmed series model to avoid over-temperature shutdown.

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

Parameter download requires corresponding DriveTop software matching final FW or FM firmware version.