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FVP 110 Fieldbus Valve Positioner Manual
260
GE Energy
SERVO_RATE
Tuning range: 0, 0.05 to 1.0 sec (Default: 0.22 sec)
Set the derivative time of PI-D control.
The derivative term relates to the feedback and prevents a rapid output change, and the
preventive effect increases in proportion to the derivative time.
If a rapid response causes an overshoot, set a larger value for the derivative time to
prevent a rapid change and reduce overshoot. However, if the effect of this change is
excessive, tracking capability during step response decreases. If 0 is set, this function is
invalid.
SERVO_RATE_GAIN
Tuning range: 2 to 20 (Default: 5)
Set the gain in the derivative term of PI-D control.
As with SERVO_RATE, this parameter relates to the derivative term of control, and the
preventive effect increases in proportion to an increase in the gain in the derivative term.
SERVO_DEADBAND
Tuning range: 0 to 50% (Default: 0%)
Setting this parameter stops an integral operation in the vicinity of the Set point.
Figure 89
Servo Deadband
If you set the parameter SERVO_DEADBAND when, for example, the friction of a valve is
large, a limit cycle can be prevented. However, the value of the steady-state deviation
could be as large as that of SERVO_DEADBAND.
Содержание FVP110
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Страница 97: ...81 Dimensions Standard Specifications Dimensions Figure 46 Single Acting Actuator Dimensions ...
Страница 98: ...FVP 110 Fieldbus Valve Positioner Manual 82 GE Energy Figure 47 Double Acting Actuator Dimensions ...
Страница 99: ...83 Dimensions Standard Specifications Figure 48 Terminal Configuration ...
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Страница 114: ...FVP 110 Fieldbus Valve Positioner Manual 98 GE Energy Table 17 View Object for Transducer Block ...
Страница 115: ...99 View Object Configuration Table 11 View Object for Transducer Block continued ...
Страница 117: ...101 View Object Configuration Table 18 View Object for AO Function Block ...
Страница 118: ...FVP 110 Fieldbus Valve Positioner Manual 102 GE Energy Table 19 View Object for DI1 DI2 Function Block ...
Страница 119: ...103 View Object Configuration Table 20 View Object for OS Function Block ...
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Страница 121: ...105 View Object Configuration Table 22 View Object for Resource Block ...
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Страница 238: ...FVP 110 Fieldbus Valve Positioner Manual 222 GE Energy Table 72 LM Parameter Part List ...
Страница 239: ...223 LM Parameter List Link Master Functions ...
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Страница 262: ...FVP 110 Fieldbus Valve Positioner Manual 246 GE Energy Table 85 Download Error Codes ...
Страница 265: ...249 Comments on System Network Software Download Table 88 DOMAIN_DESCRIPTOR ...
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Страница 268: ...FVP 110 Fieldbus Valve Positioner Manual 252 GE Energy Figure 84 Checking Position at Which Clamp Should Be Fixed ...
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Страница 289: ...273 H Customer Maintenance Parts List ...
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