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127 to 134, 553, 554, 575 to 577, C42(934) to C45(935)
PID control
Pr.127 PID control automatic switchover frequency
Pr.128 PID action selection
Pr.130 PID integral time
Pr.132 PID lower limit
Pr.134 PID differential time
Pr.554 PID signal operation selection
Pr.576 Output interruption detection level
C42(Pr.934) PID display bias coefficient
C44(Pr.935) PID display gain coefficient
The inverter can be used to exercise process control, e.g. flow rate,
air volume or pressure.
The terminal 2 input signal or parameter setting is used as a set
point and the terminal 4 input signal used as a feedback value to
constitute a feedback system for PID control.
Pr.128 = "20, 21" (Measured value input)
Inverter circuit
Pr. 133
or terminal 2
+ -
Kp 1+
Set point
0 to 5VDC
(0 to 10VDC)
Terminal 4
Feedback signal (measured value)
Kp: Proportionality constant Ti: Integral time S: Operator Td: Differential time
145
Parameter unit display language
selection
Pr.145 PU display language selection
The display language of the parameter unit (FR-PU04/FR-PU07)
can be changed.
Pr.145 setting
0 (initial value)
1
2
3
4
5
6
7
146
Built-in potentiometer switching
Pr.146 Built-in potentiometer switching
When using an FR-E500 series operation panel (PA02), the
frequency setting method can be switched using Pr.146 Built-in
potentiometer switching.
Pr.146 setting
0
Built-in frequency setting potentiometer
1 (initial value)
Digital frequency setting with the "UP/DOWN" key
The frequency setting with the built-in frequency
9999
setting potentiometer is enabled when the frequency
setting with the "UP/DOWN" key is "0 Hz".
When setting parameters, refer to the instruction manual (applied) and understand instructions.
Pr.129 PID proportional band
Pr.131 PID upper limit
Pr.133 PID action set point
Pr.553 PID deviation limit
Pr.575 Output interruption detection time
Pr.577 Output interruption cancel level
C43(Pr.934) PID display bias analog value
C45(Pr.935) PID display gain analog value
Motor
Manipulated
PID operation
variable
1
M
+Td
S
Ti
S
4 to 20mADC (0 to 5V, 0 to 10V)
Description
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Description
150 to 153, 166, 167
Detection of output current (Y12 signal)
detection of zero current (Y13 signal)
Pr.150 Output current detection level
Pr.151 Output current detection signal delay time
Pr.152 Zero current detection level
Pr.166 Output current detection signal retention time
Pr.167 Output current detection operation selection
The output current during inverter running can be detected and
output to the output terminal.
(1) Output current detection
(Y12 signal, Pr. 150, Pr. 151, Pr. 166, Pr. 167)
The output current detection function can be used for
excessive torque detection, etc.
If the output current remains higher than the Pr.150 setting
during inverter operation for longer than the time set in
Pr.151, the output current detection signal (Y12) is output
from the inverter's open collector or relay output terminal.
Pr. 166
9999, Pr. 167 = 0
Pr. 150
Pr. 151
Output current
OFF
detection signal
(Y12)
(2) Zero current detection (Y13 signal, Pr. 152, Pr. 153)
If the output current remains lower than the Pr.152 setting
during inverter operation for longer than the time set in
Pr.153, the zero current detection (Y13) signal is output
from the inverter's open collector or relay output terminal.
Pr. 152
Pr. 152
0[A]
OFF ON
Start signal
Zero current
OFF
detection time
(Y13)
Pr. 153
Detection time
Once turned ON, the zero current detection time
signal (Y13) is held on for at least 0.1s.
154, 156, 157
Refer to the section about Pr.22
160
Extended parameter display
Pr.160 Extended function display selection
Parameter which can be read from the operation panel and
parameter unit can be restricted.
In the initial setting, only the simple mode parameters are displayed.
Pr.160 setting
0
Displays all parameters
9999
Displays only the simple mode parameters
(initial value)
Pr.153 Zero current detection time
Time
Pr. 166
Min. 0.1s (initial value)
OFF
ON
0.1s ∗
Time
OFF
ON
ON
Pr. 153
Detection time
Description
44
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