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AC supply requirements
380V to 480V ±10%, 3-phase, 48 to 62 Hz
Maximum supply imbalance: 2% negative phase sequence
(equivalent to 3% voltage imbalance between phases)
Line reactors
When one of the following model sizes...
UNI 1401, UNI 1402, UNI 1403, UNI 1404
....is used on an AC supply of 175kVA or larger, it is
recommended that a line reactor of 2% reactance is
included between the AC supply and the Drive. Model
sizes 1405 and larger have an internal dc-bus choke.
A line reactor reduces the risk of damage to the Drive
resulting from severe disturbances on the supply network.
Temperature, humidity and cooling method
Ambient temperature range:
–10°C to 50°C (14°F to 122°F). Output current de-rating
may apply at high ambient temperatures.
Cooling method: Natural convection
Maximum humidity: 95% non-condensing at 40°C (104°F)
Storage temperature range: –40°C to 50°C (–40°F to 122°F)
Maximum storage time: 12 months
Altitude
Altitude range: 0 to 4000m (13000 ft), subject to the
following conditions:
1000m to 4000m (330 feet to 13000 ft) above sea level:
de-rate the maximum output current from the specified
figure by 1% per 100m (330 ft)
Vibration
Maximum vibration:²0.5g as specified in IEC 68–2–61; 1982
Ingress protection
Gland plate(s) not fitted: IP00
Gland plate(s) fitted; cable glands not fitted: IP10
Cable-glands fitted; glands fitted: IP40, NEMA 1
Accuracy and Resolution
The following data applies to the Drive only; it does not
include the performance of the source of the control signals.
Output-frequency accuracy:² ±0.1%
Output-frequency resolution: ² ± 0.01
RPM
Starts per hour
By electronic control: unlimited
By interrupting the AC supply:
model sizes 1 and 2: ² 20, model sizes 3 and 4: ² 10
Nominal Maximum permissible continuous output current Nominal
rating AC
supply
current
@380V @460V 3kHz ✝ 4.5kHz 6kHz 9kHz 12kHz
UNI 1401 0.75 kW 1.0 HP 2.1 A 2.1 A 2.1 A 2.1 A 2.1 A 3.1 A
UNI 1402 1.1 kW 1.5 HP 2.8 A 2.8 A 2.8 A 2.8 A 2.8 A 3.2 A
UNI 1403 1.5 kW 2.0 HP 3.8 A 3.8 A 3.8 A 3.8 A 3.8 A 5.5 A
UNI 1404 2.2 kW 3.0 HP 5.6 A 5.6 A 5.6 A 5.6 A 4.5 A 8.4 A
UNI 1405 4.0 kW 5.0 HP 9.5 A 9.5 A 8.5 A 7.0 A 5.5 A 9.5 A
UNI 2401 5.5 kW 7.5 HP 12.0 A 12.0 A 12.0 A 12.0 A 11.7 A 13.7 A
UNI 2402 7.5 kW 10.0 HP 16.0 A 16.0 A 16.0 A 14.2 A 11.7 A 16.3 A
UNI 2403 11.0 kW 15.0 HP 25.0 A 21.7 A 18.2 A 14.2 A 11.7 A 24.3 A
UNI 3401 15.0 kW 25.0 HP 34.0 A 34.0 A 34.0 A 28.0 A 23.0 A 34.0 A
UNI 3402 18.5 kW 30.0 HP 40.0 A 40.0 A 37.0 A 28.0 A 23.0 A 39.0 A
UNI 3403 22.0 kW 30.0 HP 46.0 A 46.0 A 40.0 A 32.0 A 26.6 A 46.0 A
UNI 3404 30.0 kW 40.0 HP 60.0 A 47.0 A 40.0 A 32.0 A 26.7 A 59.0 A
UNI 3405 37.0 kW 50.0 HP 70.0 A 56.0 A 46.0 A 35.0 A 28.0 A 74.0 A
UNI 4401 45.0 kW 75.0 HP 96.0 A 96.0 A 88.0 A 70.0 A 96.0 A
UNI 4402 55.0 kW 100.0 HP 124.0 A 104.0 A 88.0 A 70.0 A 120.0 A
UNI 4403 75.0 kW 125.0 HP 156.0 A 124.0 A 105.0 A 80.0 A 151.0 A
UNI 4404 90.0 kW 150.0 HP 180.0 A 175.0 A 145.0 A 110.0 A 173.0 A
UNI 4405 110.0 kW 150.0 HP 202.0 A 175.0 A 145.0A 110.0 A 190.0 A
UNI 5401 160.0 kW 200.0 HP 300.0 A 240.0 A
Power and Current ratings
40°C (104°F)
ambient
Model
drive technical specifications
✝ Peak current: up to 175% of the rated current for 4 seconds
✝ Factory setting
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