Using Pid Control Mode - YASKAWA VS-606V7 Series Instruction Manual

• Using PID Control Mode

For details of the PID control setting, refer to the block diagram of the Inverter's
internal PID control or the block diagram of the operator analog speed reference.
PID Control Selection: n128
Parameter
No.
n128 PID control selection
n128 Settings
Setting
0 Disabled.
1 Enabled: deviation is subject to differential control.
2 Enabled: feedback signal is subject to differential control.
Enabled: frequency reference + PID control, and deviation
3
are subject to differential control.
Enabled: frequency reference + PID control, and feedback
4
signal are subject to differential control.
5 Enabled: deviation is subject to differential control.
6 Enabled: feedback signal is subject to differential control.
Enabled: frequency reference + PID control, and deviation
7
are subject to differential control.
Enabled: frequency reference + PID control, and feedback
8
signal are subject to differential control.
Set one of the above values when using PID control.
The following table shows how to determine the target value and the feedback value to
be input when the PID control is enabled.
Target The currently selected
Value frequency reference
The frequency reference that is set
Feedback
to the PID feedback value
Value
selection (n164)
n164 setting
0 Control circuit terminal FR (Voltage 0 to 10V).
1 Control circuit terminal (Current 4 to 20 mA)
2 Control circuit terminal (Current 0 to 20 mA)
3 Operator terminal (Voltage 0 to 10V)
4 Operator terminal (Current 4 to 20 mA)
5 Pulse train
110
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Setting
Name Unit
Range
- 0 to 8
Function PID Output Characteristics
Input Condition
Determined by the frequency reference selection (n004)
When the local mode is selected, the target value is
determined by frequency reference selection in local mode
(n008).
When the multi-step speed reference is selected, the
currently selected frequency reference becomes the target
value.
-
Description
Initial
Setting
0
Forward
Reverse