Mitsubishi Electric FR-A720-00030-NA Instruction Manual page 318

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(6) Adjustment method of torque setting voltage (current) bias and gain
a) Method to adjust any point without application of a voltage (current) to across terminals 1 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
Set to C19 Terminal 1 gain (torque).
6.
Press
to display the analog voltage
(current) value (%).
7.
Apply a 10V (20mA) voltage (current).
(Turn the external potentiometer connected
across terminals 1 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
· An error at writing (
) may appear if torque setting value of gain and bias are too close.
appears.
.
(
) appears.
Flicker...Parameter setting complete!!
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
The parameter
number read
previously appears.
C0 to C41
setting
is enabled.
Terminal 1 input Terminal 4 input
Analog voltage (current)
value (%) across terminals 1 and 5
(across terminals 4 and 5)
The value is nearly 100 (%) in
the maximum position of the
potentiometer.
until
Terminal 1 input Terminal 4 input
(Adjustment completed)
indication (step 4).
).
input (terminal 1, 2, 4)
307
4

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