Mitsubishi Electric FR-F740-00023 Instruction Manual page 229

Special operation and frequency control
Parameter
Name
Number
134 PID differential time
*1
Analog input display
241
*1
unit switchover
553 PID deviation limit
PID signal operation
554
selection
Output interruption
575
detection time
Output interruption
576
detection level
Output interruption
577
cancel level
C42
PID display bias
coefficient
(934)
*6
C43
PID display bias
analog value
(934)
*6
C44
PID display gain
coefficient
(935)
*6
C45
PID display gain
analog value
(935)
*6
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 173)
*1 The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in Pr. 77 Parameter
write selection.
*2 PID control is available without turning X14 signal ON when Pr.128 = "50, 51, 60, 61, 110, 111, 120, 120".
*3 Setting values of Pr.131 to Pr.133, Pr.553, Pr.577 are without unit when "9999" is set to both of C42(Pr.934) and C44(Pr.935). (The values set to
Pr.553 and Pr.577 indicate deviation range whether the unit is % or is not indicated.)
*4 Input specification for the terminals are determined by Pr.73 Analog input selection.
*5 Input specification for the terminal is determined by Pr.267 Terminal 4 input selection.
*6 The parameter number in parentheses is the one for use with the parameter unit (FR-PU04/FR-PU07).
(1) PID control basic configuration
Pr. 128 = "10, 11, 110, 111" (Deviation value signal input)
Set point
Pr. 128 = "20, 21, 120, 121" (Measured value input)
Pr. 133 or
terminal 2
0 to 5VDC
(0 to 10V, 4 to 20mA)
220
Initial Setting
Value
9999
0
0 to 100.0%
9999
0
10 to 13
0 to 3600s
1s
0Hz 0 to 400Hz
1000% 900 to 1100%
0 to 500.00
9999
20% 0 to 300.0%
0 to 500.00
9999
100% 0 to 300.0%
Deviation signal
+ -
Terminal 1
0 to 10VDC
(0 to 5V)
To outside
Feedback signal (measured value)
Kp: Proportionality constant Ti: Integral time S: Operator Td: Differential time
Inverter circuit
*1
+ -
Set point
Terminal 4
*2
Feedback signal (measured value)
Kp: Proportionality constant Ti: Integral time S: Operator Td: Differential time
Range
When deviation lamp is input, time (Td) is the time required to
0.01 to provide the manipulated variable of only the proportional (P)
10.00s action. As the differential time increases, greater response is
made to a deviation change.
9999 No differential control.
0 Displayed in %
1 Displayed in V/mA
Y48 signal is output when the absolute value of deviation
*3
amount exceeds the deviation limit value.
9999 No function
Select the operation to be performed at the detection of upper,
0 to 3,
lower, and deviation limit for the measured value input. The
operation for PID output suspension function can be selected.
The inverter stops operation if the output frequency after PID
operation remains at less than the Pr. 576 setting for longer
than the time set in Pr. 575.
9999 Without output interruption function
Set the frequency at which the output interruption processing is
performed.
Set the level (Pr. 577 minus 1000%) to release the PID output
interruption function.
Set the coefficient on bias (minimum) side of terminal 4 input.
9999 Displayed in %.
Set the converted % on bias (minimum) side current /voltage of
terminal 4 input.
Set the coefficient on gain (maximum) side of the terminal 4
input.
9999 Displayed in %.
Set the converted % on gain (maximum) side of current/
voltage of terminal 4 input.
Inverter circuit
PID operation
1
*
1+
Kp +Td S
Ti S
PID operation
1
Kp 1+ +Td S
Ti S
4 to 20mADC (0 to 5V, 0 to 10V)
Description
Select the unit of analog input display.
Motor
Manipulated
variable
IM
Motor
Manipulated
variable
IM