Hitachi SJ200 Series - Manual (Page 71)

SJ200 Inverter
In
v
e
rt
er Mounting
and Installation
2–33
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 2–27 .
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).
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 Display Func./Parameter
Press the key.
“H” Group selected
Press the key.
Output frequency selected
Press the key.
Output frequency displayed
POWER
RUN
PRG RUN
STOP
RESET
HITACHI
FUNC STR 1 2
5 0.0
Hz
A
HITACHI
ALARM
FUNC.
H – – –
1 d
0 0 1
FUNC.
0.0