YASKAWA Varispeed-606PC3 Instruction Manual

t . VS-606PO3 INVERTER MAIN UNIT (Cont'd)CAUTIONEnclosed wall-mounted type (NEMA1)When mounting units in an enclosure, remove the top, bottom andterminal covers, and install a cooling fan or some other means tocool the air entering into the inverter below 113 ° F (45 °C) .Water and dust tight type (NEMA4)Never submerse this model in water.The models of a forced-air-cooled type are provided with acooling fan in the die-cast case. Protect the cooling fan frommoisture . Excessive water splash may reduce the inverteroperating life .If water splashes on the cooling fan section, keep the coolingfan operating for approx. 30 minutes in order to dry it. (Byconducting current to the inverter unit, the cooling fan rotates .)For the cable lead-in section (at the bottom cover), use a cablegland of a waterproof type . (Products described in pages 14and 15 are available as options.)Cable lead-in holes are not provided in the bottom cover .According to your application, drill holes in the bottom cover.Refer to pages 8 and 9.After completion of wiring, mount the front cover and bottomcover with care . (Pay attention so as not to damage the gasket.)Since the inverter unit cover is sealed with the die-cast case,never remove it .The front cover mounting screws and bottom cover mountingscrews are of stainless . Do not use any other screws than thoseattached . (In particular, screws of different length may causedamage.)When silicon rubber cement applied to the contacting section ofthe front cover and bottom cover for reinforcement ofwaterproof performance, use silicon rubber cement with lessgas generated when hardening .(Recommended : KE-3494 made by SHIN-ETSU CHEMICALCO., LTD.)- 1 2-