Elevator inverter pcb board Siei AVY AC4-0 R-AVGLF Elevator asynchronous Main control board

Frequency converter is a very common device in modern electrical equipment, and elevator frequency converter is a special instrument for elevator control. The elevator frequency converter controls the elevator in an S-type, that is, the acceleration of starting and stopping is relatively gentle, while the acceleration in the middle is relatively fast, mainly for riding comfort, and energy saving is also one aspect, which is the general advantage of frequency converter. The fundamental function of the frequency converter is to adjust the frequency and voltage. By changing the frequency, the motor speed is changed to meet the various operating instructions of the elevator. When does the elevator stop, when does it speed up, when does it slow down? These functions of the elevator are controlled by the frequency converter after receiving instructions through external communication to change the frequency.

SIEI inverter is a frequency inverter which is commonly used in OTIS brand elevators. It mainly has 2 types. The part number has its own different meaning. The technical specification of the AVy Drive is stated in the type code. Example: AVy2040-XXX-AC4. “AVY” means ARTDrive, AC flux vector drive, 3 phase input voltage; “2” is enclosure dimension identification; “040” means nominal motor output = 4kW; “XXX” has different meanings: the first “X” means KCS led module, K=programmable KBS keypad, the second “X” means without internal brake transistor, B=with internal brake transistor and the third “X” means standard software, L=LIFT software (specific for lift control); “AC” means firmware for asynchronous induction motors, BR=Firmware for synchronous brushless motors; “4” means hardware Lift for internal / external logic fan control and emergency module supplier control (AVy2040 ... AVy5550 sizes only), [blank]=Hardware standard. 

Siei Elevator pcb AVY AC4-0 R-AVGLF is SIEI inverter main board, an asynchronous main control board. It mainly has 2 versions: 3.4 version and 3.6 version. At its core, an inverter main board is designed to perform one primary task: converting direct current (DC) into alternating current (AC). It's a circuit to convert one DC voltage to another by inverting the input DC to AC, running thru a main transformer, rectifier, regulator to output the new DC voltage.