Mitsubishi FR-D720 alternative: INVT GD20 vs Veichi AC10 — spec table and real price
Engineering comparison of Mitsubishi FR-D720-008SC-EC against the closest budget alternatives INVT GD20 and Ve...
Articles about: Veichi
Motor reverse on a Veichi VFD: parameter P0.09 (F07.05) and start-reverse logic
Reverse means changing the motor's rotation direction to the opposite one. On Veichi drives the direction is s...
Flying Start (F07.00=2) on Veichi: catching inertial machines and crushers
Flying Start (a speed-tracking start, "catch on the fly") is a mode in which, before the start, the VFD first...
VFD for a compressor: sizing by current, OL2 at start, torque
A compressor is nothing like a fan or a pump. A fan starts almost without load — the air offers no resistance...
SUB / SBU / USB modes in a hybrid inverter: how to actually save
One of the most frequent questions in support sounds like this: "I set up the hybrid, but I see no savings — w...
Hybrid system power-on order: DC → inverter → AC (and why the "bang")
A hybrid inverter is not an ordinary power supply you can "just switch on". Inside it has a DC bus with large...
Veichi SV hybrid inverter + Felicity: why the inverter does not see the BMS
The link between a Veichi SV-series hybrid inverter and a Felicity lithium battery is the most common point of...
VFD for a single-phase "Vodoley" pump: wiring and setup
"Vodoley" (Водолей) is a common brand of single-phase household centrifugal and peripheral pumps built on a 22...
