11
12
13
14
15
16
17
18
19
20
391
15. (A) Application Parameters
15.4 PID control
NOTE
• When the set point is set by using
Pr.133
, the setting frequency of
C2 (Pr.902)
is equivalent to 0% and the setting frequency
of
Pr.125
is equivalent to 100%.
• Measured value input calibration
1.
Apply the input (for example, 4 mA) of measured value 0% across terminals 4 and 5.
2.
Perform calibration by
C6 (Pr.904)
.
3.
Apply the input (for example, 20 mA) of measured value 100% across terminals 4 and 5.
4.
Perform calibration by
C7 (Pr.905)
.
NOTE
• Set the frequencies set in
C5 (Pr.904) and Pr.126
to each of the same values set in
C2 (Pr.902) and Pr.125
.
• The display unit for analog input can be changed from "%" to "V" or "mA". (Refer to
.)
• The following figure shows the results of having performed the calibration above.
*1
The upper limit of the manipulated amount is the
Pr.125
setting value.
NOTE
• Even if the X14 signal is ON, PID control is stopped and multi-speed or JOG operation is performed when the multi-speed
operation (RH, RM, RL, or REX) signal or JOG signal (JOG operation) is input.
• PID control is invalid under the following settings.
Pr.79 Operation mode selection
= "6" (Switchover mode)
• To use terminal 4 input in PID control, set "0" (initial value) to
Pr.858 Terminal 4 function assignment
. When a value other
than "0", PID control is invalid.
• Changing the terminal functions with
Pr.178 to Pr.189 and Pr.190 to Pr.196
may affect other functions. Set parameters after
confirming the function of each terminal.
• When PID control is selected, the minimum frequency becomes the frequency of
C2 (Pr.902)
and the maximum frequency
becomes the frequency of
Pr.125
.
(The
Pr.1 Maximum frequency and Pr.2 Minimum frequency
settings also are valid.)
• During PID operation, the remote operation function is invalid.
• When control is switched to PID control during normal operation, the frequency during that operation is not carried over, and
the value resulting from PID calculation referenced to 0 Hz becomes the command frequency.
Parameters referred to
Pr.59 Remote function selection
100
0
0
5
(V)
(%)
[Set point setting]
100
0
0
20
(mA)
(%)
[Measured value]
4
60
0
0
100 Deviation (%)
[Manipulated variable]
Manipulated variable (Hz)
∗1
PID action
Frequency
command
PID set point
Frequency command
during normal operation
ON
Operation when control is switched to PID control during normal operation
Normal operation
PID operation
Normal operation
Содержание FR-E800
Страница 17: ...16 1 Introduction 1 3 Related manuals MEMO ...
Страница 51: ...50 2 Basic Operation 2 8 I O terminal function assignment MEMO ...
Страница 89: ...88 3 Parameters 3 4 Parameter list by function group number MEMO ...
Страница 135: ...134 5 Speed Control 5 9 Troubleshooting in the speed control MEMO ...
Страница 153: ...152 6 Torque Control 6 7 Troubleshooting in torque control MEMO ...
Страница 195: ...194 8 E Environment Setting Parameters 8 18 Current average value monitor signal MEMO ...
Страница 237: ...236 10 D Operation Command and Frequency Command 10 6 Operation by multi speed setting MEMO ...
Страница 339: ...338 13 T Multi Function Input Terminal Parameters 13 9 Start signal operation selection MEMO ...
Страница 455: ...454 16 G Control Parameters 16 13 Speed smoothing control MEMO ...
Страница 481: ...480 18 Appendix 18 4 Parameters functions and instruction codes under different control methods MEMO ...
