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2 basic operation, Step, Operation – Toshiba Tosvert VF-A5 User Manual

Page 34: Caution, Basic operation, A) or

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7.2 Basic Operation

Verify the following items before starting operation.

(1) Check that the wiring is correct.

(Refer to Chapter 6, Standard connections, on page 15.)

(2) Check that the power source is the correctly-rated value.

After confirming that there are no mistakes, perform simple operations with the standard settings.

Operate according to the following procedure.

When performing trial operations, run the motor at a low frequency (approx. 10Hz).

(1) Starting and stopping via the panel

Step

Operation

1) Power ON

Turn ON the power source’s non-fuse breaker (MCCB).

If the LED display is OFF, all preparation conditions are not established, so
running will not be possible. Terminals ST-CC must be ‘closed*. Running is
possible when the LED display is 0 . 0 . Remote operation mode from the
control terminal block is automatically entered when power is turned on.

2

)

f ^ A N E U

REMOTE

Changeover to "Panel control".

The panel control LED will light, and operation from the panel will be

possible.
(If this key is pressed again, the panel control LED will go out, and remote

operation mode from the control terminal block will once again be entered.)

3)

A

V

Set the operating frequency.

The frequency command value can be incremented/decremented with the

UP key

(A) or

DOWN key ( S y ) . When one of these keys is pressed, the

LED display will blink, indicating that the value is being changed. When the

desired frequency is displayed, press the

ENTER key. F C and the

frequency will be alternately displayed on the LED display.

4)

RUN

The frequency will increase according to the acceleration time, and the motor
will rotate. The panel control LED will blink while running.

5)

STOP

RESET

The frequency will decrease according to the deceleration time, and the

motor will decelerate and stop.

Caution

If the power switch is turned off in the 4) state, the motor will coast-stop. However, this method should
only be used in the case of an emergency.

Avoid frequent starting and stopping of the inverter by turning the power switch on and off, as this will
shorten the life of the inverter.