Mitsubishi Electric FR-D720-008 Instruction Manual page 157

(4) Frequency setting signal (current) bias/gain adjustment method
(a) Method to adjust any point by application of a voltage (current) across terminals 2-5 (4-5).
Operation
1.
Confirm the RUN indication and operation
mode indication
The inverter should be at a stop.
The inverter should be in the PU operation
mode.
(Using )
2.
Press to choose the parameter setting
mode.
3.
Turn until appears.
4.
Turn until appears.
5.
Turn until (
Set to C4 Terminal 2 frequency setting gain.
6.
Press to display the analog voltage
(current) value (%).
7.
Apply a 5V (20mA) voltage (current).
(Turn the external potentiometer connected
across terminals 2-5 (across terminals 4-5) to
maximum (any position).)
NOTE
After performing operation in step 6, do not touch
8.
Press to set.
Turn to read another parameter.
Press to return to the
Press twice to show the next parameter (
REMARKS
If the frequency meter (display meter) connected across the terminals AM does not indicate exactly 60Hz, set the calibration
parameter C1 AM terminal calibration. (Refer to page 132)
If the gain and bias of frequency setting voltage (current) are too close, an error (
Frequency setting by analog input (terminal 2, 4)
PRM indication is lit.
(The parameter number read previously appears.)
) appears.
Terminal 2 input is
selected
* The value is nearly 100 (%) in the maximum position of
the potentiometer.
Flicker...Parameter setting complete!!
* The value is nearly 100 (%) in the maximum position of
the potentiometer.
indication (step 4).
Display
C1 to C7 settings
are enabled.
Terminal 4 input is
selected
Analog voltage (current)
value (%) across terminals 2-
5 (across terminals 4-5)
∗
until completion of calibration.
Terminal 2 input is
∗
selected
).
) may be displayed at setting.
Terminal 4 input is
selected
4
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