271
PID control
4
<Set point input calibration>
1) Setting with terminal 2 input
1. Apply the input voltage of 0% set point setting (e.g. 0V) across terminals 2 and 5.
2. Enter in
C2 (Pr. 902)
the frequency which should be output by the inverter at the deviation of 0% (e.g. 0Hz).
3. In
C3 (Pr. 902)
, set the voltage value at 0%.
4. Apply the voltage of 100% set point (e.g. 5V) to across terminals 2 and 5.
5. Enter in
Pr. 125
the frequency which should be output by the inverter at the deviation of 100% (e.g. 60Hz).
6. In
C4 (Pr. 903)
, set the voltage value at 100%.
2) Setting with
Pr. 133
When both or one of
C42 (Pr. 934) and C44 (Pr. 935)
is "9999".
For the set point, set a % converted value in the range of 0 to 100%.
When both of
C42 (Pr. 934)
and C44 (Pr. 935)
≠
"9999".
For the set point, set PID coefficient, which corresponds with 0 to 100%.
<Measured value calibration>
1) When both or one of
C42 (Pr.934)
and
C44 (Pr.935)
is "9999".
1. Apply the input current of 0% measured value (e.g. 4mA) across terminals 4 and 5.
2. Make calibration using
C6 (Pr. 904)
.
3. Apply the input current of 100% measured value (e.g. 20mA) across terminals 4 and 5.
4. Make calibration using
C7 (Pr. 905)
.
2) When both of
C42 (Pr.934)
and
C44 (Pr.935)
≠
"9999".
1. Apply the input current of 0% measured value (e.g. 4mA) across terminals 4 and 5.
2. Set PID display value at 0% measured value (example: 15(
°
C)) to
C42 (Pr. 934)
, and calibrate
C43 (Pr. 934)
.
3. Apply the input current of 100% measured value (e.g. 20mA) across terminals 4 and 5.
4. Set PID display value at 100% measured value (example: 35(
°
C)) to
C44 (Pr. 935)
, and calibrate
C45 (Pr. 935)
.
The results of the above calibration are as shown below:
REMARKS
⋅
The frequency set in
C5 (Pr. 904)
and
Pr. 126
should be the same as set in
C2 (Pr. 902)
and
Pr. 125
.
Pr. 133
Setting
Pr. 934,
Pr. 935
Setting
Set Point Setting
Measured Value
(Terminal 4)
Manipulated Variable
9999
—
(Terminal 2)
Other than
9999
Both or one
is 9999
(Pr.133)
Other than
9999
(Pr.133)
Set PID coefficient
corresponding with 0 to 100%.
100
0
0
5 (V)
Set point signal input
Set point
(%)
100
0
0
20
C7(Pr.905)
(mA)
Measured value
input signal
Measured
Value
(%)
4
C6(Pr.904)
60
(Pr.125)
0
C2(Pr.902)
0
100
Deviation(%)
Manipulated
Variable(Hz)
100
0
C5(Pr.904)
Pr.126
Set point setting
Set point
(%)
100
0
C42(Pr.934)
C44(Pr.935)
Set point
(%)
100
0
0
20
C45(Pr.935)
(mA)
Measured value
input signal
Measured
value
(%)
4
C43(Pr.934)
Содержание 700 Series
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