2–32

Using the Front Panel Keypad

Inverter Mounting

and Installation

 

 

Monitoring Parameters with the Display

After using the keypad for parameter editing,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

it’s a good idea to switch the inverter from

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HITACHI

 

 

 

 

 

 

 

 

 

POWER

 

Program Mode to Monitor Mode. The PRG

 

 

 

 

 

Hz

 

 

 

 

 

 

 

ALARM

 

 

 

 

 

5 0.0

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

LED will be OFF, and the Hertz or Ampere

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RUN

 

 

 

 

 

 

 

 

 

 

LED indicates the display units.

 

 

 

 

 

RUN

STOP

PRG

 

 

 

 

 

For the powerup test, monitor the motor

 

 

 

 

 

RESET

 

 

 

 

 

 

 

 

 

 

FUNC.

1 2 STR

 

 

 

 

 

speed indirectly by viewing the inverter’s

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

output frequency. The output frequency must

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

not be confused with base frequency (50/

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60 Hz) of the motor, or the carrier frequency (switching frequency of the inverter, in the kHz range). The monitoring functions are in the “D” list, located near the top left of the “Keypad Navigational Map” on page 2–26.

Output frequency (speed) monitor - Resuming keypad operation from the previous table, follow the steps below. Or instead, you can simply power cycle the inverter, which automatically sets the display to D001 (output frequency value).

 

 

Action

Display

Func./Parameter

 

 

 

 

 

 

 

 

 

 

Press the FUNC.

key.

H – – –

“H” Group selected

 

 

 

 

 

 

Press the

1

key.

d 0 0 1

Output frequency selected

 

 

 

 

 

 

 

 

 

 

Press the FUNC.

key.

0.0

Output frequency displayed

 

When the inverter displays a monitor value, the PRG LED is OFF. This confirms the inverter is not in programming mode, even while you are selecting the particular monitoring parameter. The display shows the current speed (is zero at this point). The Hz LED will be ON, indicating the display units. For current, the Amperes LED will be ON.

Running the Motor

If you have programmed all the parameters up to this point, you’re ready to run the motor! First, review this checklist:

1.Verify the Power LED is ON. If not, check the power connections.

2.Verify the Potentiometer Enable LED is ON. If it is OFF, check the A001 setting.

3.Verify the Run Key Enable LED is ON. If it is OFF, check the A002 setting.

4.Verify the PRG LED is OFF. If it is ON, review the instructions above.

5.Make sure the motor is disconnected from any mechanical load.

6.Turn the potentiometer to the minimum position (completely counter clock-wise).

7.Now, press the RUN key on the keypad. The RUN LED will turn ON.

8.Slowly increase the potentiometer setting in clockwise fashion. The motor should start turning.

9.Press the STOP key to stop the motor rotation.