supply of supply, testing, installation and commissioning of ac drive.supply, testing, installation and commissioning of ac drive.,supply, testing, installation and commissioning of ac drive specification: (1) ac drive requir ed to drive squirrel cage im: 55kw/75 hp, 3ph, 415vac, 50 hz, 4 pole / 6 pole, s4 duty for crane hoist/lt motor application. (2) ac drive mains supply: 3ph, 380-400 vac 50 hz. (3) ac drive o/p rating, high overlo ad capacity: 55 kw (4) drive o/p rating: 55 kw (5) panel mounting type, protection: ip-20 (6) drive to work without encoder feedback system with suitable current feedback system for speed control with required br aking chopper,, rfi & emc filter. (7) drive with inbuilt protection system: drive overload, excessive load, gr ound fault, heat sink over temperature, motor over load, over speed limit, over voltage, under voltage, sho rt circuit etc. (8) ac drive to work from the digital inputs in, up/down or forward / reverse direction & i n jog, start, stop, speed-1, speed-2, speed-3 & speed-4 modes. (9) drive with standard minimum; 6 di gital i/ps, 2 digital o/ps, 2 analog i/ps, 1 analog o/p & 2 relay o/ps. (10) drive shall have hmi with touchpa d key mounted to display various operating parameters in english. hmi with editing drive parameters & sel f-monitoring watch dog facility to display fault and alarm indications. (11) drive software program for cran e duty be in soft copy. (12) cable to communicate between laptop & ac drive shall be supplied. (13) suppl y of operating manual in hard copy. (14) supplier has to test, install and commission and the ac drive for t he rated capacity induction. motor on the crane/equipment and tuned parameters in soft copy. (15) make : danfoss vlt automation drive fc302 series or ab power flex 755 series or siemens s-120 series or abb acs-880 series or yaskawa ga-700 series only. [ warranty period: 30 months after the date of delivery ] ] => limited