ZFeng 900 Series 7.5Kw-T General Vector Variable Frequency Drive The ZFeng 900 series variable frequency drive developed by our
company has multiple control methods such as torque and speed. By
utilizing the vector frequency conversion control technology of the
frequency converter, ordinary motors can also achieve various
capabilities such as stepless speed regulation, soft start and soft
stop, instant start and stop, and non-stop power outage, greatly
improving motor response speed, enhancing motor energy efficiency,
extending equipment life, and meeting users' needs for production
processes Vector frequency drive are driving industrial control towards a
more intelligent and green direction through technological
iteration. Their core value lies in upgrading motor control from
"simple speed regulation" to "precision motion management",
becoming a key supporting technology for industrial upgrading. Core advantages - Ultimate control accuracy: By decomposing the motor current into excitation current and
torque current, decoupling control of magnetic field and torque is
achieved, and the speed/torque control accuracy can reach ± 0.05%,
far exceeding the ± 2% -5% of traditional V/F control frequency
converters.
- Efficient and energy-saving: Adjust the output voltage and frequency in real-time according to
the load, so that the motor always runs at the optimal efficiency
point.
- Low speed and high torque output: Output 150% of the rated torque during 0Hz, solving the problem of
insufficient low-frequency torque in ordinary frequency converters;
When lifting heavy loads with a crane, there is no need to
configure a hydraulic coupling, and a soft start can be made
directly to reduce mechanical impact.
- Ultra wide speed regulation range: Speed ratio 1:1000, seamless switching from 0.1rpm to rated speed,
suitable for low-speed winding and high-speed rewinding processes
of textile winding machines.
Selection suggestions - Light load continuous operation: For ordinary fans, an economical V/F control frequency converter
can be selected.
- Heavy duty/high-precision scenarios: such as injection molding machines and CNC machine tools,
prioritize models that support closed-loop vector control.
- Special environment: ATEX certified products are required for explosion-proof
applications, and independent heat dissipation modules are required
for high-temperature environments.
Installation and maintenance recommendations - Environmental requirements: dry, ventilated, avoid direct sunlight, recommended working
temperature -10 ℃~50 ℃.
- Wiring specifications: Strictly distinguish between the main circuit and the control
circuit, with a grounding resistance of ≤ 4 Ω.
- Regular maintenance: Clean the dust accumulation on the heat sink every 6 months, check
the status of the capacitor, and backup parameter settings.
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