Running The Motor - Hitachi L2002 Instruction Manual

2–32
Using the Front Panel Keypad
Monitoring Parameters with the Display
After using the keypad for parameter editing,
it's a good idea to switch the inverter from
Program Mode to Monitor Mode. The PRG
LED will be OFF, and the Hertz or Ampere
LED indicates the display units.
For the powerup test, monitor the motor
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
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).
Press the
Press the
Press the
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.
Action
key.
FUNC.
key.
1
key.
FUNC.
HITACHI
5 0.0
RUN
FUNC.
2–26.
Display
"H" Group selected
H – – –
Output frequency selected
d
0 0 1
Output frequency displayed
0.0
POWER
ALARM
Hz
A
RUN
PRG
STOP
RESET
2
1 STR
Func./Parameter