Quanzhou Ausenist Technology Co., Ltd

Plan pressure zones, sensors, pump staging, redundancy and protection for a high-rise booster system using YS620 or YS820 drives.

Set and test high-pressure protection for YS620 and YS820 booster systems without confusing the alarm limit with the normal pressure target.

Design variable-speed pressure control for greenhouse zones, filters and fertigation equipment while protecting the water source and pump.

Create a practical FAT plan covering identity, wiring, motor current, pressure control, sleep, alarms, multi-pump operation and OEM traceability.

Commission a YS620 or YS820 pump VFD using a structured electrical, motor, sensor, PID, protection and acceptance-test checklist.

Compare the motor, hydraulic, cable, sensor and protection questions required when applying YS620 or YS820 to different pump types.

Learn why ordinary capacitors and power-factor correction devices should not be connected to a pump VFD output and what buyers should check instead.

Learn when lower pump speed may reduce cavitation risk, why a VFD cannot repair poor suction design, and what evidence engineers should check.