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175
Speed setting by analog input (terminal 2, 4)
4
PARAMETERS
(4) Speed setting signal (current) bias/gain adjustment method
(a) Method to adjust any point by application of a voltage (current) across terminals 2 and 5 (4 and 5).
Follow the following procedure to adjust the bias and gain of the speed setting voltage (current) using the operation
panel. Refer to page 173 for the details of parameters.
Operation Display
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.
PRM indicator is lit.
(The parameter number read previously
appears.)
3. Turn until appears.
4. Press to display .
5. Turn until ( ) appears.
Set to C4 Terminal 2 speed setting gain.
Terminal 2 input is
selected
Terminal 4 input is
selected
6. Press to display the analog voltage
(current) value (%).
Analog voltage (current)
value (%) across terminals 2-
5 (across terminals 4-5)
7. Apply a 5V (20mA) voltage (current).
(Turn the external potentiometer connected
across terminals 2-5 (across terminals 4-5) to
maximum (any position).)
The value is nearly 100 (%) in the maximum position of the
potentiometer.
8. Press to set.
Terminal 2 input is
selected
Terminal 4 input is
elected
Flicker...Parameter setting complete!!
The value is nearly 100 (%) in the maximum position of the
potentiometer.
Turn to read another parameter.
Press to return to the indication (step 4).
Press twice to show the next parameter ( ).
REMARKS
If the speed meter (display meter) connected across the terminals FM-SD does not indicate exactly 3000r/min, set the
calibration parameter C0 FM terminal calibration. (Refer to page 162)
If the gain and bias of speed setting voltage (current) are too close, an error ( ) may be displayed at setting.
C0 to C7 setting
is enabled.
Hz
A
Hz
A
NOTE
After performing operation in step 6, do not touch until completion of calibration.
Hz
A