VFD Variable Frequency Drive 3.7KW 5HP 17A 220V Frequency Inverter for CNC Spindle Motor Speed Control

This 3.7 kW single‑phase 220 V VFD features V/F and vector control, 0.1–1000 Hz frequency range, RS‑485, and overload and voltage protections.

Specifications:

Manufacturer Part Number: V70-3.7S2

Input Voltage: 220 V (Single-phase)

Input Frequency: 50/60 Hz

Power: 3.7 KW

Capacity of driver: 6.8 KVA

Output current: 17 A

Applicable motor: 3.7 KW

Control mode: V/F, Vector control

Communication control: RS-485

Operating temperature: -10 - 40 ℃

Humidity: 0 - 95%(without condensation)

Vibration: Less than 0.5G

Overload protection: Electric relay protection motor driver (constant torque: 150% per minute, fans: 120% per minute)

FUSE protection: When the fuse blows, the motor stops

Over-voltage protection: DC voltage > 390V

Low-voltage protection: DC voltage < 200V

Frequency Control:

Frequency Range: 0.1 - 1000 Hz

Accuracy: 0.1%(-10 - 40 ℃) for digital; 0.1%(25 ± 10 ℃) for analog

Setting Resolution: 0.1 Hz for digital; 1% of Max. operating frequency for analog

Output Resolution: 0.1 Hz

Keyboard Setting Mode: Set as ← ▲ ▼ directly

Analog Setting Mode: External voltage 0 - 5 V, 0 - 10 V, 4 - 20 mA, 0 - 20 mA

Other functions: adjustable hopping frequency (lower limit, startup, stop);