Delta VFD-A, Руководство пользователя

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(4) Attention:
The user must provide a circuit breaker or disconnect switch and fuses in accordance
with all applicable electrical codes.
Make sure that the leads are connected correctly and the AC drive is properly
grounded.
(Ground leads should be at least the same size wire as the input leads R, S,
and T.)
Use ground leads that comply with AWG standards. Make the length of these ground
leads as short as possible.
Should several AC drive units be installed side by side, all the units should be
grounded directly to the ground poles. Do not form a loop with the ground leads.
Make sure that the power source supplies the correct voltage and is capable of
supplying the required current to the AC drive. Refer to specification for “Rated AC
Input Power.” Motor Voltage should match the line voltage.
When power is applied to the AC drive, the DC bus charge indicator LED will be on.
For single phase applications, the AC input line can be connected to any two of the
three input terminals R, S, T. A single phase VFD-A drive can be powered from three
phase as well as single phase.
Note: This drive is not intended for use with single-phase motors.
When the AC drive output terminals U, V, and W are connected to the motor terminals
U, V, and W, respectively, the motor will rotate counter-clockwise (viewed from the
shaft of the motor as shown below) if a forward operation command is entered (FWD
lamp is ON).
Forward
running
To reverse the direction of rotation, interchange any two connections of the three
motor leads.
The control lines and power lines (R,S,T;U,V,W;P,N,B1,B2) should be separated and
avoid parallel wiring lest it should generate noise and cause mis-operation.
Caution: Do not attach or remove wiring or connectors when power is applied to the
AC drive. Do not monitor the signals at any point on the circuit board while the AC
drive is in operation.
Caution: Do not connect the AC input to any of the U, V, W terminals, as this will
damage the AC drive.
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