supply of ac driveac drive,ac drive specification: (1) ac drive required to drive squirrel cage im: 55kw/75 hp, 3ph, 415 vac, 50 hz, 4 pole / 6 pole, s1/s4 duty for crane hoist/lt motor application. (2) ac drive mains supply: 3p h, 380-400 vac 50 hz. (3) ac drive o/p rating, high overload capacity: 55 kw. (4) drive o/p rating, normal overload capacity: 75 kw. (5) panel mounting type, protection: ip-20. (6)drive to work without encoder fee dback system. the drive shall have to work with suitable current feedback system for speed control. the a c drive shall include required braking chopper, rfi/emc filter, (7) drive with inbuilt protection system: driv e overload, excessive load, ground fault, heat sink over temperature, motor over load, over speed limit, ov er voltage, under voltage, short circuit etc. (8) ac drive to work from the digital inputs in, up/down or for ward / reverse direction & in jog, start, stop, speed-1, speed-2, speed-3 & speed-4 modes. (9) drive with standard minimum; 6 digital i/ps, 2 digital o/ps, 2 analog i/ps, 1 analog o/p & 2 relay o/ps. (10) drive shall have hmi with touchpad key mounted to display various operating parameters in english. hmi with e diting drive parameters & self-monitoring watch dog facility to display fault and alarm indications. (11) dri ve software program for crane duty be in soft copy. (12) cable to communicate between laptop & ac drive shall be supplied. (13) supply of operating manual in hard copy. (14) supplier has to test, install and comm ission and the ac drive for the rated capacity induction. motor on the crane/equipment and tuned paramet ers in soft copy. (15) make : danfoss vlt automation drive fc302 series or ab power flex 755 series or si emens s-120 series or abb acs-880 series or yaskawa ga-700 series or equivalent. [ warranty period: 30 months after the date of delivery ] ] => limited