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PARAMETERS
126
<Set point input calibration>
1. Apply the input voltage of 0% set point setting (e.g. 0V) to across terminals 2-5.
2. Make calibration using Pr. 902. At this time, enter the frequency (e.g. 0Hz) which should be output by the
inverter at the deviation of 0%.
3. Apply the voltage of 100% set point setting (e.g. 5V) to across terminals 2-5.
4. Make calibration using Pr. 903. At this time, enter the frequency (e.g. 60Hz) which should be output by the
inverter at the deviation of 100%.
<Detector output calibration>
1. Apply the output current of 0% detector setting (e.g. 4mA) to across terminals 4-5.
2. Make calibration using Pr. 904.
3. Apply the output current of 100% detector setting (e.g. 20mA) to across terminals 4-5.
4. Make calibration using Pr. 905.
Note: The frequencies set in Pr. 904 and Pr. 905 should be the same as set in Pr. 902 and Pr. 903.
The results of the above calibration are as shown below:
100
0
05(V)
(%)
[Set point setting]
100
0
0
20 (mA)
(%)
4
[Detection value]
60
0
0 100
Deviation (%)
[Manipulated variable]
Manipulated
variable (Hz)
Note: 1. If the multi-speed (RH, RM, RL) signal or jog operation (JOG) signal is entered with the X14
signal on, PID control is stopped and multi-speed or jog operation is started.
2. When "20" or "21" is set in Pr. 128, note that the input across inverter terminals 1-5 is added to
the set point across terminals 2-5.
3. When "6" (switch-over mode) is selected for Pr. 79, PID is made invalid.
4. When "9999" is set in Pr. 22, the stall prevention level is the value entered from terminal 1. To
use terminal 1 as the edit input terminal for PID, set a value other than "9999" in Pr. 22.
5. When the terminal functions are changed using Pr. 180 to Pr. 186 and/or Pr. 190 to Pr. 195, the
other functions may be affected. Confirm the functions of the corresponding terminals before
making settings.
6. When you have chosen the PID control, the minimum frequency is as set in Pr. 902 and the
maximum frequency is as set in Pr. 903.
(The settings of Pr. 1 "maximum frequency" and Pr. 2 "minimum frequency" are also valid.)