1. Product Overview
The VEIKONG VFD550I series electro‑hydraulic servo system integrates the VFD550I servo drive and MFD series AC permanent magnet synchronous servo motor, specially designed for hydraulic control applications. It complies with IEC/CE standards and is fully compatible with European, American, and Japanese industrial systems, widely used for energy‑saving upgrades and supporting equipment such as injection molding machines, die‑casting machines, hydraulic presses, and hydraulic stations.
2. Key Product Features
- High Efficiency & Energy Saving: Energy saving rate up to 20%–60%
- Precise Pressure Control: Pressure response within 20ms, pressure overshoot ≤±1%, steady‑state fluctuation ≤±0.5Bar
- Ultra‑fast Dynamics: 0.02s pressure/flow synchronization, shortens production cycle by 30%
- Multi‑pump Control: Built‑in CAN bus supports multi‑pump confluence and diversion
- Strong Overload Capacity: 150% rated current for 60s; 180% rated current for 10s
- Dual Motor Compatibility: Drives PMSM and asynchronous motors
3. Technical Specifications
Electrical Data (380V Three‑phase)
- Input voltage: 380–480V, tolerance ‑15% ~ +10%
- Input frequency: 50/60Hz, fluctuation <5%
- Control modes: V/f control, SVC (sensorless vector), VC (vector with PG card)
- Communication: MODBUS, CANopen
- Carrier frequency: 1kHz–12kHz
- Overload capacity: 150% × 60s; 180% × 10s
Power & Current Rating
| Model |
Rated Output Current |
Rated Power |
Size |
| VFD550I‑5A6‑T4B |
5.6A |
2.2KW |
SIZE A |
| VFD550I‑9A4‑T4B |
9.4A |
4KW |
SIZE A |
| VFD550I‑13A‑T4B |
13.0A |
5.5KW |
SIZE B |
| VFD550I‑17A‑T4B |
17.0A |
7.5KW |
SIZE B |
| VFD550I‑25A‑T4B |
25.0A |
11KW |
SIZE C |
| VFD550I‑32A‑T4B |
32.0A |
15KW |
SIZE C |
| VFD550I‑37A‑T4B |
37.0A |
18.5KW |
SIZE D |
| VFD550I‑45A‑T4B |
45.0A |
22KW |
SIZE D |
| VFD550I‑60A‑T4B |
60.0A |
30KW |
SIZE E |
| VFD550I‑75A‑T4B |
75.0A |
37KW |
SIZE E |
| VFD550I‑90A‑T4B |
90.0A |
45KW |
SIZE F |
| VFD550I‑110A‑T4B |
110.0A |
55KW |
SIZE F |
| VFD550I‑152A‑T4B |
152.0A |
75KW |
SIZE G |
| VFD550I‑176A‑T4B |
176.0A |
90KW |
SIZE G |
4. Matching MFD Servo Motor
- Type: AC permanent magnet synchronous servo motor
- Protection class: IP54
- Temperature rise: Max 50°C
- Power density: 20% higher than conventional motors
- Peak load current: 15% lower
5. Optional Accessories
- PG cards: MT500‑PG‑INC3 (incremental), MT500‑PG‑RT1 (resolver)
- Operation panels: MTBOP1 (LED), MTBOP2 (dual‑display), MTSOP1 (LCD)
- Encoder cables: MIC019‑RT‑L4.0 / L6.0 / L10.0
- Injection molding machine: Energy saving 35%, efficiency +10%
- Die‑casting machine: Multi‑pump confluence/diversion, shorter cycle time
- Hydraulic station / metal baler: Energy saving up to 51.2%
- Press machine: Response 20ms, positioning accuracy ≤0.1mm