83
Setting Control Specifications
Section 4-3
Note
(1) This parameter can be set only when operation is stopped.
(2) The decimal point position is determined by the sensor selection. In this
case, however, the 0 (****) decimal point position setting will be treated as
setting 1 (***.*).
■
Disturbance Gain
• Overshooting due to a disturbance can be suppressed more by increasing
the Disturbance Gain.
• Overshooting due to a disturbance can be increased by decreasing the
Disturbance Gain.
• If the Disturbance Gain is set to 0, the Disturbance Overshoot Adjustment
Function will not operate.
■
Disturbance Time Constant
The recovery time from the disturbance can be made longer by increasing the
Disturbance Time Constant. The Disturbance Time Constant is normally left
at its default setting of 1. Use this parameter for fine-tuning when adjusting the
Disturbance Gain alone is not sufficient.
Note
The waveform shown in the diagram above will vary depending on the control
object's characteristics and the PID constant settings.
D5/95
Disturbance Gain
(Channel)
−
1.00 to 1.00
0.65
Disturbance Time Constant
(Channel)
0.01 to 99.99 s
1.00
Disturbance Rectification Band
(Channel)
0.0 to 999.9 EU
(See note 2.)
0.0
Disturbance Judgment Width
(Channel)
−
199.9 to 999.9 EU
(See note 2.)
0.0
Conditions for use
The control method must be set to 2-PID control.
Variable type
Parameter name
Setting range
Default
0
SP
Temperature
Disturbance Gain =
−
1
Disturbance Gain =
−
0.5
Disturbance Gain = 0
Disturbance Gain = 0.5
Disturbance Gain = 1
Time
0
SP
Temperature
Disturbance Time Constant = 1
Time
Disturbance Time Constant = 2
Содержание EJ1 EtherCAT
Страница 2: ...EJ1 Modular Temperature Controllers User s Manual Revised July 2008 ...
Страница 3: ...iv ...
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Страница 213: ...188 Detailed Description of Services Section 6 4 ...
Страница 227: ...202 Detailed Description of Services Section 7 5 ...
Страница 251: ...226 Determining the Error from the Current Situation for Heater Burnout Alarm Errors Section 8 8 ...
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