Mitsubishi Electric FR-A720-0.4K Instruction Manual page 308

(5) Frequency setting voltage (current) bias/gain adjustment method
(a)Method to adjust any point by application of voltage (current) to across the terminals 2 and 5 (4 and 5).
Operation
1.
Confirm the RUN indicator and operation mode
indicator.
The inverter must be at a stop.
The inverter must be in the PU operation mode.
(Using )
2.
Press to choose the parameter setting mode.
3.
Turn until
4.
Press to display
5.
Turn until (
appears. 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 and 5 (across terminals 4
and 5) to maximum (any position).)
CAUTION
After performing the operation in step 6, do not touch
completion of calibration.
8.
Press to set.
REMARKS
⋅ If the frequency meter (indicator) connected across terminals FM and SD does not indicate exactly 60Hz, set calibration
parameter C0 FM terminal calibration. (Refer to page 263)
⋅ If the gain and bias frequency settings are too close, an error (
appears.
.
)
By turning , you can read another parameter.
Press to return to the
Press twice to show the next parameter (
Frequency/torque setting by analog
Display
Terminal 2 input Terminal 4 input
* The value is nearly 100 (%) in the maximum
position of the potentiometer.
until
*
Flicker...Parameter setting complete!!
(Adjustment completed)
* The value is nearly 100 (%) in the maximum
position of the potentiometer.
display (step 4).
).
) may be displayed at the time of write.
input (terminal 1, 2, 4)
The parameter
number read
previously appears.
C0 to C41
setting
is enabled.
Analog voltage (current)
value (%) across terminals 2 and 5
(across terminals 4 and 5)
*
Terminal 2 input Terminal 4 input
4
297