Model Explanation

DKC: ECODRIVE Digital Servo Power Unit

4 (Original Factory 04): This model comes with a PROFIBUS-DP bus version. It differs from 02 (SERCOS) and 01 (analog) versions.

.3: The third-generation power hardware version

40 (Original Factory 040): Rated continuous output current 40Ams

7: High-voltage model, three-phase 380~480V incoming line, DC bus 700VDC

FW: Empty power base, without MGP control card, no fixed program. The control board and firmware need to be selected and burned separately. Technical Specifications

Main power supply: Three-phase AC380~480V ±10%, 50/60Hz, maximum input current for the entire machine is 16A; Independent DC24V control power supply, power consumption 21W

DC bus: Nominal 700VDC, overvoltage protection 850VDC, built-in 24Ω pre-charge resistor

Output performance: Continuous 40Arms, 240% short-term overload, carrier 4/8kHz selectable, maximum output frequency 1000Hz

Braking configuration: Built-in braking circuit with a continuous current of 2A and a peak current of 10A. For heavy-duty conditions, an external external braking resistor must be connected externally

Appearance: Width 65mm × Height 360mm × Depth 261mm, net weight 5.7kg, IP20 cabinet installation

Environment: Full-load operation within 0~45℃, altitude ≤1000m; Storage temperature -30℃ to +85℃

Interface and communication configuration

Power terminals: L1/L2/L3 three-phase input, U/V/W motor power terminals, external braking resistor connection terminals

Encoder socket: Compatible with rotary transformers, TTL incremental ABZ, sine-cosine encoder feedback

Upper card slot: Compatible with MGP-7 high-voltage main control board, control card leads out DI/DO switch quantities, ±10V analog instructions, pulse direction point interface Communication

1. RS232 debugging port (activated with MGP card): IndraWorks parameter debugging, firmware download and burning

2. The machine is equipped with the native PROFIBUS-DP (fixed DP communication of version 04, cannot be changed to SERCOS)

3. The card slot can be optionally equipped with a CANopen expansion sub-card Core function

The entire machine only has the power inverter hardware, and all the speed/position/torque closed-loop control is achieved through the MGP main control card;

Control mode: ±10V analog speed regulation, pulse position control, PROFIBUS bus multi-axis synchronization, supporting electronic gear, origin return to zero, and motor brake timing control;

Full hardware protection: overcurrent, overvoltage, undervoltage, power module overheating, encoder break, output short-circuit faults self-lock and shutdown. Applicable scenarios

Machine tool feed axis, pharmaceutical and food packaging unit, printing roller system drive, small and medium-sized truss mechanical hand, lithium battery automation precision positioning axis.

Usage and Maintenance

1.-7 High-voltage base must not be connected to three-phase 220V power supply. It is only allowed to be powered by AC380~480V. Misconnection will cause power module breakdown.

2. The bare FW base cannot be powered on and run independently. It must be assembled with the same specification MGP-7 main control card + matching power firmware.

3. For high-frequency start-stop and large inertia load, a large-power external braking resistor must be installed to prevent the internal braking circuit from burning out.

4. The abbreviated model DKC4.3-40-7-FW is directly interchangeable with the original factory's DKC04.3-040-7-FW spare parts without any difference.