Open Loop Vector Control Inverter VFD 220V-380V Power Range 599Hz Maximum Frequency
Open Loop Vector Control Inverter
,220V-380V Power Range VFD
,599Hz Maximum Frequency Inverter
The SP600 series is a dedicated integrated inverter designed for air compressors, supporting both wall mounting and floor standing installation. It adopts error‑proof pluggable terminals for fast and reliable wiring. Built‑in detection and protection circuits integrate PT100, PTC, pressure sensors, solenoid valves, and fans, enabling comprehensive monitoring and safe operation. Equipped with dual‑channel RS485 (Modbus RTU) as standard, it supports HMI and IoT expansion for easy one‑click startup.
Power range:
220V: 3.7–75kW (special order)
380V: 5.5–132kW
Control modes include open‑loop vector control, V/F control, and PM motor support, with a wide frequency range up to 599Hz, delivering stable performance and high efficiency for industrial air compressors.
- Flexible Installation Options: Supports both wall-mounted and floor-standing configurations to adapt to diverse on-site layouts.
- Error-Proof Wiring: Features pluggable terminals with anti-misconnection design for fast, secure, and mistake-free installation.
- Comprehensive Integrated Protection: Built-in detection and protection circuits for PT100, PTC, pressure sensors, solenoid valves, and cooling fans, ensuring full monitoring of key system parameters.
- Smart Communication & Control: Equipped with dual-channel RS485 (Modbus RTU) as standard, supporting seamless HMI and IoT expansion, enabling one-click startup and intelligent operation.

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Dimension |
SP600T-3R7KY-2 / SP600T-5R5KY-4 / SP600T-7R5KY-4 |
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W (mm) |
118 |
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H (mm) |
238 |
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H1 (mm) |
274 |
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D (mm) |
154 |
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A (mm) |
80 |
|
B (mm) |
260 |
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Φd (mm) |
5.5 |
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Category |
Item |
SP600 Specification |
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Basic control functions |
Control mode |
Open loop vector control, V/F control, Support PM |
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Maximum frequency |
0~599Hz |
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Carrier frequency |
0.5kHz~8kHz, carrier frequency is automatically adjusted based on the load features. |
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Input frequency resolution |
Digital setting: 0.01HzAnalog setting: maximum frequency × 0.025% |
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Startup torque |
0.5 Hz/150% |
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Speed range |
1:100 |
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Speed stability accuracy |
± 0.2% |
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Torque control accuracy |
±10% |
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Overload capacity |
60s for 150% of the rated current, 3s for 180% of the rated current. |
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Communication methods |
RS485 |
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Input and output interfaces |
Analog Input |
1 pressure sensor: 4 ~ 20mA input2 temperature sensor: PT100 |
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Digital input |
2 digital input1 PTC circuit protection (compatible with normal digital inputs) |
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Digital Output |
1 normally open relay output (built in 220VAC voltage) |
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LED diode display |
Standard 3 LED display |
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Protection |
Protection functions |
Motor overheating protection (PTC), power-to-ground short-circuit protection, inverter over-current, overload, over voltage, under voltage, over temperature, output phase, communication fault, fault current detection, EEPROM write failure and so on. |
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Environment |
Installation location |
Indoor, free from direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapor, drip or salt. |
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Altitude |
Below 1000m |
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Ambient temperature |
-10°C~40°C (de-rating if the ambient temperature is between 40°C and 50°C) |
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Humidity |
Below 95%RH, (non-condensing) |
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Vibration |
Below 5.9 m/s² (0.6 g) |
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Storage temperature |
-20°C~60°C |

Shenzhen Bebaios Machinery Co., Ltd. specializes in manufacturing industrial air compressors and pneumatic equipment. Located in Shenzhen, one of the world’s leading high-tech manufacturing hubs, we take full advantage of local industrial resources to provide reliable, energy-saving air solutions to global clients.
Quality Assurance: Stable performance and strict compliance with international quality standards.
Complete Service System: 24/7 after-sales service and a professional support team ensure fast, efficient responses to customer needs.
Inversor de compresor de aire SP600 con control vectorial de bucle abierto, frecuencia máxima de 599 Hz y protección integrada. Cuenta con terminales enchufables, RS485 dual y admite montaje en pared/suelo para una instalación flexible.