Phase LHX Series - Models and Ratings; Global Specifications; Derating Operating Temperature at High Elevations

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MODELS AND RATINGS
9.1 Global Specifications
The DXL and LHX Series drives are engineered to minimize heat and noise losses, which contribute to
inefficiencies. These drives consistently achieve efficiencies exceeding 98%.
Table 31 – Global Specifications
Specs
Range
Input Frequency
50/60 Hz
Output Frequency
5 - 590 Hz
Switching
Frequency*
5 - 10 HP:
2 - 5 kHz
125+ HP:
1.5 - 5 kHz
DXL VD:
2 - 8 kHz
*Switching Frequency is an adjustable parameter set through the keypad (See Table 17).
DXL drives can be powered by a single-phase input, but the output current will be de-rated by half. Parameter
1.3.19 ENABLE 1PH INPUT must be set to YES.
9.1.1 Derating Operating Temperature at High Elevations
Peripheral cooling components of the DXL and LHX Series drives operate at decreased effectiveness at higher
elevations. At elevations of 3,300 feet (1,000 m) and lower, the drive can reach its full rated current. Current
must be derated by 0.25% for every 100 feet above 3,300 ft. See Figure 24 for details.
Figure 24 – Elevation Derate Chart