Replacing Delta VFD-EL with Veichi AC10: Migration Guide
An engineering guide for retrofitting industrial systems by replacing obsolete Delta VFD-EL frequency inverter...
Articles about: Ac10
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...
Shielding a 4-20mA sensor: which end to ground, 15 cm separation
A pressure or flow sensor in pump automation almost always outputs a 4-20 mA current signal. On Veichi it is w...
VFD grounding and stray voltage on the enclosure (PE, >5V)
A fairly common complaint after installation: voltage "tingles" on the motor housing, the cabinet or the drive...
PLC jumper on Veichi: wiring PNP/NPN sensors and pushbuttons
On the control board of Veichi AC10 (from 7.5 kW) and AC310 three terminals sit side by side: +24V, PLC and CO...
COM or GND: why the buttons do not work on a Veichi VFD
A typical picture after installation: the Veichi VFD starts from the keypad, the parameters are entered, but t...
