Mitsubishi Electric FR-F500 Series Instruction Manual page 164

# PID control
PID actions are performed as set in Pr. 128 to Pr. 134 (PID control). (Refer to page 122)
In this advanced PID control, a voltage input (0 to ±5V or 0 to ±10V) may also be used as a process value.
<Setting>
Advanced PID control configuration
Pr.128 = 10, 11
Set point
Pr.128 = 20, 21
Pr. 133 or Treminal 2
0 to ±5
(0 to ±10)
VDC
* Input the process value of 4 to 20 mA at No.4 terminal.
Pr.128 = 30, 31
Pr. 133 or Treminal 2
0 to ±5
(0 to ±10)
VDC
* Input the process value of 0 to ±10VDC (0 to ±5VDC) at No.1 terminal.
Parameter Number
PID action
128
selection
# PID forward-reverse action switching function
Use the X24 signal to switch between the forward and reverse actions under the control of the external
signal. Assign the signal X24 to any terminal using any of Pr. 180 to Pr. 186 (input terminal function
selection). (Refer to page 140)
Parameter Number
Input terminal function
180 to 186
selection
• At PID reverse action setting (Pr. 128 = 10, 20, 30): Turning on the X24 signal starts a forward action.
• At PID forward action setting (Pr. 128 = 11, 21, 31): Turning on the X24 signal starts a reverse action.
Deviation signal
+ -
Terminal 1
External
to Inverter Feedback signal (Process value)
Kp: Proportion constant
Inverter circuit :
+ -
Set point
Terminal 4
Feedback signal (Process value)
Kp: Proportion constant
Inverter circuit :
+ -
Set point
Terminal 1
Feedback signal (Process value)
Kp: Proportion constant
Name Setting
10
11
20
21
Set point (terminal 2 or Pr.133), Process
30
value input, (terminal 1)
31
Name Setting Range
Inverter circuit :
PID operation
Manipulated
1
1+
+Td S
Kp
Ti S
Ti: Integral time S: Operator
PID operation
Manipulated
1
1+ +Td S
Kp
Ti S
4 to 20 mA
Ti: Integral time S: Operator
PID operation
Manipulated
1
1+ +Td S
Kp
Ti S
0 to ±10 (0 to ±5) VDC
Ti: Integral time S: Operator
Description
Refer to page 126.
Description
24 X24 signal
A reverse action is performed when the X24 signal is off.
A forward action is performed when the X24 signal is off.
151
PARAMETERS
Motor
IM
variable
Td: Differential time
Motor
IM
variable
Td: Differential time
Motor
IM
variable
Td: Differential time
PID reverse action
PID forward action
4