Special Operation And Frequency Control - Mitsubishi Electric FR-F720-0.75K to 110K Instruction Manual

Special operation and frequency control

Parameter
Name
Number
553
PID deviation limit
554
PID signal operation
selection
Output interruption
575
detection time
Output interruption
576
detection level
Output interruption
577
cancel level
C42
PID display bias
(934)
*6
coefficient
C43
PID display bias
(934)
*6
analog value
C44
PID display gain
(935)
*6
coefficient
C45
PID display gain
(935)
*6
analog value
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 175)
...
Specifications differ according to the date assembled. Refer to page 322 to check the SERIAL number.
*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)
222
Initial Setting
Value
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
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
Motor
Manipulated
variable
IM
Motor
Manipulated
variable
IM