SAMI GS 4 Mechanical Installation SAMI GS is mounted on a wall in a vertical position using four fixing notches at the top and bottom of the unit. When choosing the mounting location pay attention to the cool- ing needs of the SAMI GS. If the cooling ability is reduced too much, the thermal protection operates causing a fault indication and stopping the frequency con- verter. SAMI GS can be started again when the temperature of the cooling element has fallen below the tripping level *) (+70 o C). The temperature of the cooling element can be read from the control panel display (Oper- ating Data, parameter 8, SAMI TEMPERATURE).
4.1 Cooling SAMI GS frequency converters are provided with a cooling fan(s) on the bottom of the unit. The ambient operating temperature for constant torque drives, when the load current is ( I N ) and switching frequency f S = 3 kHz, is 0 ... 45 o C, except for ACS 501-006-3 and 009-5 0 ... 40 o C. See fig. 4-2 output current derating curves. The ambient operating temperature for squared torque drives, when the load current is ( I NSQ ) and switching frequency f S = 3 kHz, is 0 ... 40 o C, except for ACS 501-006-3 and 009-5 0 ... 35 o C. See fig. 4-2 output current derating curves. *) for types ACS 501-050-3, 060-3, 060-5 and 070-5, the tripping level is +75 o C.
The cooling air must be clean and free from corrosive materials. Where necessary the cooling air should be filtered. If the cooling air contains dust, clean the cooling surfaces of the unit regularly using compressed air and a brush. Table 4-1. Required cooling air. 11 Type ACS 501- [m3/h] 004-3...006-3, 005-5...009-5 009-3, 011-3, 011-5, 016-5 102 016-3, 020-3, 020-5, 025-5 406 025-3...060-3, 030-5...070-5 51 560