660V-690V VFDs (Variable Frequency Drives) are used to control the speed of high-voltage three-phase motors, such as pumps, fans, compressors, and large production line equipment.
Specification
|
VFD type |
HZ800SF |
HZ300A |
HZ800 |
|
Drive control mode |
VF/ Current closed loop Vector/velocity closed loop vector |
VF/ Current closed loop vector |
VF/ Current closed loop Vector/velocity closed loop vector |
|
Same power Starting torquecomparison |
★★★★★ |
★★★★ |
★★★★★ |
|
Torque control |
√ |
√ |
√ |
|
Shell color |
Brown |
Black |
Black |
|
Power range |
Three-phase 380V: 0.75 kw ~ 110 kw |
Single-phase 220V: 0.4 kw ~ 75 kw Three-phase 380V: 0.75 kw ~710 kw |
Single-phase 220V: 0.4 kw ~ 75 kw Three-phase 380V: 0.75 kw ~710 kw |
|
Operating keyboard |
Dual row display/LCD Shuttle potentiometer |
Single row display Adjustable potentiometer |
Single row display Adjustable potentiometer |
|
Synchronization rate volume |
★★★ |
★★★★ |
★★★★ |
|
Multifunction input Number of terminals |
8 |
8 |
8 |
|
Analog quantity Input quantity |
2 |
2 |
2 |
|
Analog quantity Output quantity |
2 |
2 |
2 |
|
Relay Output quantity |
2 |
2 |
2 |
|
485 communication |
√ |
√ |
√ |
|
Module/single tube |
Module |
Module |
Module |
|
An external expansion card is connected |
X |
X |
Support expansion card (PG/IO) |
Application
Industrial Equipment Control
660V-690V VFDs are commonly used for high-power three-phase motors and are widely applied in heavy industrial equipment such as pumps, fans, compressors, and conveying systems to control equipment start-up, shutdown, and speed regulation.
Mining and Oil Industry
In mining and oil drilling equipment, 660V-690V VFDs are used to drive large motors, regulate equipment operating speed, and ensure smooth operation under extreme load conditions.
Manufacturing and Production Lines
In manufacturing and automated production lines, 660V-690V VFDs regulate the speed of mechanical equipment to adapt to different production needs.
HVAC Systems
660V-690V VFDs are used in large air conditioning, ventilation, and refrigeration systems to regulate the speed of fans and pumps to optimize energy consumption and regulate system performance.
Pictures
FAQ
Q: What types of motors is the 660V-690V VFD suitable for?
A: The 660V-690V VFD is primarily used to drive high-power three-phase motors, suitable for high-power equipment in industrial applications, such as large pumps, fans, compressors, mixers, and large production line drive equipment.
Q: How does the 660V-690V VFD improve equipment operating efficiency?
A: By adjusting the motor speed, the 660V-690V VFD can optimize motor operation according to load demands, reducing energy consumption and preventing the motor from operating at unnecessarily high speeds, thereby improving overall system efficiency.
Q: What operating conditions can the 660V-690V VFD adjust?
A: The 660V-690V VFD can adjust the motor's speed and torque output, supporting soft start and soft stop functions, effectively reducing starting current surges and minimizing mechanical wear.
Q: Is the 660V-690V VFD suitable for extreme environments?
A: 660V-690V VFDs are designed to withstand harsh industrial environments, typically featuring dustproof and moisture-proof properties. They are suitable for industrial locations with significant temperature and humidity fluctuations, but it is still essential to ensure the environment meets the product's technical specifications.
Q: What precautions should be taken when installing a 660V-690V VFD?
A: When installing a 660V-690V VFD, it is crucial to ensure that the voltage, frequency, and motor parameters are compatible with the VFD. Correct wiring and commissioning are critical, and typically require configuration by a qualified professional based on the application scenario to ensure the equipment's normal operation and long-term stability.
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