Vacon X5, Руководство пользователя

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X5 AC Drive User’s Manual Chapter 4: Connections
DPD00089A - 31 -
© 2009 Vacon Incorporated All Rights Reserved
4.3 Input Line Requirements
4.3.1 Line Voltage
See “Power and Current Ratings” on page 16 for the allowable fluctuation of AC line voltage for
your particular X5 model. A supply voltage above or below the limits given in the table will cause
the drive to trip with either an overvoltage or undervoltage fault.
Exercise caution when applying the X5 AC drive on low-line conditions.
For example, an X5 2000 series unit will operate properly on a 208 Vac line, but the maximum
output voltage will be limited to 208 Vac. If a motor rated for 230 Vac line voltage is controlled by
this drive, higher motor currents and increased heating will result.
Therefore, ensure that the voltage rating of the motor matches the applied line voltage.
4.3.2 Line Capacity
If the source of AC power to the X5 AC drive is greater than 10 times the kVA rating shown in Table
4-4 below, an isolation transformer or line reactor is recommended. Consult the factory for
assistance in sizing the reactor.
Note: X5 AC drive devices are suitable for use on a circuit capable of delivering not more than 65,000 rms
symmetrical amperes at 10% above the maximum rated voltage.
4.3.3 Phase Imbalance
Phase voltage imbalance of the input AC source can cause unbalanced currents and excessive heat
in the drive’s input rectifier diodes and DC bus capacitors. Phase imbalance can also damage motors
running directly across the line. The phase imbalance should not exceed 2% of the voltage rating; if
it does, the drive should be derated as a single-phase drive.
Table 4-4: X5 Line Capacity (kVA)
Drive HP 5 7.5 10 15 20 25 30 40 50 60 75 100 125 150 200
Transformer
kVA
9 13 18 23 28 36 42 57 70 90 112 150 180 220 250
EQUIPMENT DAMAGE HAZARD
Never use power-factor correction capacitors on motor terminals T1/U, T2/V, or T3/W of the X5 AC
drive. Doing so will damage the semiconductors.
Failure to follow this instruction can result in injury or equipment damage.
CAUTION
RISQUE DE DOMMAGES MATÉRIELS
Ne raccordez jamais de condensateurs de correction du facteur de puissance aux bornes T1/U, T2/V, ou
T3/W du moteur du variateur de vitesse X5. Car cela endommagera les semiconducteurs.
Si cette directive n’est pas respectée, cela peut entraîner des blessures corporelles ou des
dommages matériels.
ATTENTION