8 Applied Settings
8 - 6
High-function General-purpose Inverter RX2 Series User’s Manual
(b) I operation: I gain Ki (=Ti/Kp)
This is an operation that an operation amount of PID command value is proportional to the time
integral value of the deviation between PID target value and current feedback (FB) value.
Command operation amount can be adjusted by I gain.
Integral value can be cleared by the PIDC terminal function.
Because output change becomes smaller as PID target value and FB value come closer based on
an operation amount and it takes time to reach the target value in P operation, it is compensated
with I operation.
(c) D operation: D gain Kd (=Kp × Td)
This is an operation that an operation amount of PID command value is proportional to the change
of the deviation between PID target value and current feedback (FB) value.
Command operation amount can be adjusted by D gain.
D operation has an effect to compensate the responsiveness of P operation and I operation.
PI operation is an operation with (a) and (b) combined.
PD operation is an operation with (a) and (c) combined.
PID operation is an operation with (a), (b) and (c) combined.
When the target value increases stepwise
When the target value increases linearly (ramp)
When the target value increases stepwise
When the target value increases linearly (ramp)
PID target value
FB value
Operation amount
Large
Small
I gain
PID target value
FB value
Operation amount
Large
Small
I gain
PID target value
FB value
Operation amount
Large
Small
D gain
PID target value
FB value
Operation amount
Large
Small
D gain
Summary of Contents for RX - 2
Page 1: ...High function General purpose Inverter RX2 Series User s Manual I620 E1 01 3G3RX2...
Page 54: ...1 Overview 1 22 High function General purpose Inverter RX2 Series User s Manual...
Page 136: ...2 Design 2 82 High function General purpose Inverter RX2 Series User s Manual...
Page 592: ...8 Applied Settings 8 192 High function General purpose Inverter RX2 Series User s Manual...
Page 754: ...11 Options 11 56 High function General purpose Inverter RX2 Series User s Manual...
Page 794: ...12 Troubleshooting 12 40 High function General purpose Inverter RX2 Series User s Manual...
Page 919: ......
