Amtech electronics offer axpereasy ac variable frequency drives. These variable frequency drives are available in power capacities ranging from 45 kw to 630 kw. These variable frequency drives have many outstanding features, such as: 5th generation cstbt igbt highly reliable; open loop/close loop vector control method; close loop v/f control; redundant operation of vfds feature; lcd display and drive support software for pc; in-built pid and mini plc; speed search and power loss carry through; true overload and ground fault protection; modbus-rtu connectivity for networking; 8-selectable paramonitoring on single screen; fault history up to last ten faults with 8 parameters; and user-programmable 8 analog and 15 digital i/os. The ac variable frequency drives are available in 460 v as well as 575 v series. They are approved as per ul508c standard and are listed with ul, usa as well as ul, canada.
