Speed Setting Signal (Current) Bias/Gain Adjustment Method - Mitsubishi Electric FR-D720-0.2K-G Instruction Manual

Speed setting by analog input (terminal 2, 4)

4.14.5 Speed setting signal (current) bias/gain adjustment method

Follow the following procedure to adjust the bias and gain of the speed setting voltage (current) using the operation
panel. Refer to page 152 for the details of parameters.
(a)Method to adjust any point by application of voltage (current) across the terminals 2 and 5 (4 and 5).
Operation
1.
Confirm the operation status indicator and
operation mode indicator
 The drive unit should be at a stop.
 The drive unit should be in the PU operation
mode.
(Using )
2.
Press to choose the parameter setting
mode.
3.
Turn until " " appears.
4.
Press to display "
5.
Turn until "
appears.
Set to C4 Terminal 2 speed 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).)
NOTE
After performing operation in step 6, do not touch
8.
Press to set.
Turn
Press
Press
REMARKS
 If the speed meter (display meter) connected across the terminals FM does not indicate exactly 3000r/min, set the calibration
parameter C0 FM terminal calibration. (Refer to page 140.)
 If the gain and bias of speed setting voltage (current) are too close, an error ("
154
".
" (" ")
to read another parameter.
to return to the " " indication (step 4).
twice to show the next parameter ("
Display
PRM indicator is lit.
(The parameter number read previously appears.)
C0 to C7 settings
are enabled.
Terminal 2 input is Terminal 4 input is
selected selected
Analog voltage (current)
value (%) across terminals 2
and 5 (across terminals 4
and 5)

* The value is nearly 100 (%) in the maximum position of
the potentiometer.
until completion of calibration.
Terminal 2 input is

selected
Blink...Parameter setting complete!!
* The value is nearly 100 (%) in the maximum position of
the potentiometer.
").
") may be displayed at setting.
Terminal 4 input is
selected