Model Code Definition

DKC = ECODRIVE full digital servo drive family identifier

11.1 = DKC11 analog control hardware platform, Version 1 hardware revision

040 = Nominal continuous output current: 40Arms

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

FW = Preloaded standard universal factory firmware, supports multi-mode closed-loop operation without extra option board

Technical Specifications

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

DC Bus: Nominal 700VDC, onboard 0.15mF bus capacitance, built-in dynamic brake bleeder (trigger threshold 820VDC)

Output Performance: 40A continuous rated, 250% peak overload sustainable for 300ms, PWM carrier frequency 8kHz, max output frequency 1200Hz

Dimension & Weight: W65mm × H360mm × D210mm, net weight approx 5.0kg, forced air internal fan cooling, IP20 DIN cabinet vertical mounting

Ambient Rating: Full-load operating temp 0~40℃; storage -20℃~+80℃; rated installation altitude ≤1000m, ambient humidity＜90% non-condensing, pollution degree 2

Static Power Loss: Rated idle power dissipation 180W

Interface & Communication Configuration

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

Encoder Port: Dual-channel feedback, compatible TTL incremental ABZ encoder + resolver interface, onboard 5V encoder power supply

Digital I/O Terminal: 8DI+8DO standard onboard terminal, for drive enable, hardware travel limit, home origin search, motor brake logic control

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

Debug & Fieldbus: Front RS232 serial port for DriveTop parameter commissioning; expandable SERCOS/Profibus/CANopen via optional daughterboard

Core Functions

Standard FW firmware integrates full position/speed/torque three-loop closed-loop control; supports analog speed control, pulse position control, internal multi-step sequential positioning via digital trigger. Built-in STO safe torque-off safety function, complete fault protection including overcurrent, DC bus over/undervoltage, power module overtemperature, encoder line break, with front panel LED fault code display.

Application Fields

CNC milling/lathe spindle & feed axes, industrial multi-joint robot joints, high-speed rotary printing machinery, heavy-duty winding & slitting equipment, large automatic packaging production lines, automotive component precision assembling lines.

Operation & Maintenance Instructions

Type-7 high voltage model strictly limited to AC380~480V three-phase input; wrong 220V low-voltage input leads to insufficient output torque and abnormal alarm.

Replacement requires matching FW firmware version; parameter files cannot be directly cloned from non-FW variant drives.

Frequent forward-reverse cyclic operation must install external high-power braking resistor to prevent internal bleeder overheat burnout.

Commissioning requires DriveTop software edition matching factory FW revision for normal parameter read-write.