Hitachi SJ7002 Series Instruction Manual page 76

Monitoring
Parameters with
the Display
Running the
Motor
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After using the keypad for parameter
editing, it's a good idea to switch the
inverter from Program Mode to Monitor
Mode. This will turn out the PRG LED, and
the Hertz, Volt, Ampere, or % 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 diagram in the
Navigational Map" on page
Output frequency (speed) monitor - Resuming the keypad programming from the previous
table, follow the steps in the table below.
Action
Press the FUNC. key.
Press the key.
1
Press the key.
FUNC.
d001
When the function code appeared, the PRG LED went OFF. This confirms the inverter is
no longer in programming mode, even while you are selecting the particular monitoring param-
eter. After pressing the FUNC. key, the display shows the current speed (is zero at this point).
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 Run Key Enable LED is ON. If not, review the programming steps to find the
problem.
3. Verify the PRG LED is OFF. If it is ON, review the instructions above.
4. Make sure the motor is disconnected from any mechanical load.
5. Turn the potentiometer to the MIN position (completely counterclockwise).
6. Now, press the RUN key on the keypad. The RUN LED will turn ON.
7. Slowly increase the potentiometer setting in clockwise fashion. The motor should start
turning when the indicator is in the 9:00 position and beyond.
8. Press the STOP key to stop the motor rotation.
RUN
PRG
FUNC.
2–31.
Display
H---
d00 1
0.00
SJ700 Inverter
2
POWER
HITACHI
ALARM
50.0
HZ
V
kW
A
%
STOP
RUN
RESET
MIN MAX
2
STR
1
"Keypad
Func./Parameter
"H" Group selected
Output frequency selected
Output frequency displayed
2–35