SPX20X 200V to 240V ±10%
SPX40X 380V to 480V ±10%
SPX50X 500V to 575V ±10%

Number of phases: 3
Maximum supply imbalance: 2% negative phase sequence (equivalent to 3% voltage imbalance between phases). Frequency range: 48 to 65 Hz

Speed:
The absolute frequency and speed accuracy depends on the accuracy of the crystal used with the drive microprocessor. The accuracy of the crystal is 100ppm, and so the absolute frequency/speed accuracy is 100ppm (0.01%) of the reference, when a preset speed is used. If an analog input is used the absolute accuracy is further limited by the absolute accuracy of the analog input. 

The following data applies to the drive only; it does not include the performance of the source of the control signals. 

Open loop resolution:
Preset frequency reference: 0.1Hz
Precision frequency reference: 0.001Hz

Closed loop resolution:
Preset speed reference: 0.1rpm
Precision speed reference: 0.001rpm
Analog input 1: 16bit plus sign
Analog input 2: 10bit plus sign

Current:
The resolution of the current feedback is 10bit plus sign. The accuracy of the current feedback is 5%.

Ambient temperature operating range:
32°F to 122°F (0°C to 50°C). Output current de-rating must
applied at ambient temperatures >104°F (40°C).

Minimum temperature at power-up: 5°F (-15°C)
Cooling method: Forced convection
Maximum humidity: 95% non-condensing at 104°F (40°C)
Storage: 104°F (-40°C) to 122°F (+50°C)

Altitude range: 0 to 9,900 ft (3,000m), subject to the following conditions:
3,300 ft to 9,900 ft (1,000m to 3,000m) above sea level: 
de-rate the maximum output current from the specified figure by 1% per 330 ft (100m) above 3,300 ft (1,000m)

For example at 9,900ft (3,000m) the output current of the drive would have to be de-rated by 20%.

The Unidrive SP is rated to IP20 pollution degree 2 (dry, non-conductive contamination only). However, it is possible to configure the drive to achieve IP54 rating at the rear of the heatsink for through-panel mounting (some current derating is required).
In order to achieve the high IP rating at the rear of the heatsink with Unidrive SP size 1 and 2, it is necessary to seal a heatsink vent by fitting the IP54 insert as shown in Figure 3-18 Fitting of IP54 insert for size 1 on page 20. For strict compliance with IP54 rating the heatsink fan must be replaced with an IP54 rated fan. Contact the supplier of the drive for details. Fitting of the IP54 insert and/or IP54 rated fan requires output current de-rating to be applied

By electronic control: unlimited
By interrupting the AC supply:
Unidrive SP (Sizes 1 to 3): .20 (equally spaced)

Line reactors are particularly recommended for use with the following drive models when one of the above factors exists, or when the supply capacity exceeds 175kVA:

Model sizes 1405 and larger have an internal DC choke so they do not require AC line reactors except for cases of excessive phase unbalance or extreme supply conditions.
For three-phase drives, three individual reactors or a single three-phase reactor should be used. Each drive must have its own reactor(s).

Reactor current ratings
The current rating of the line reactors should be as follows:

Continuous current rating: 
Not less than the continuous input current rating of the drive

Repetitive peak current rating:
Not less than twice the continuous input current rating of the drive