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Gear reducer, Rotary actuator, Actuator, Bevel gear reducer, Valve actuator
Text version of the page
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| Time for Opening Direction Stop in Advance [FO] | [03] stopping three time units in advance [04] stopping four time units in advance [05] stopping five time units in advance Select correct indication functions with +or - key, and press "enter" key. Refer to picture 4.5.26. The default setting is [00]. | signal at a certain place, the deadband parameter should be increased. If more accurate control is needed, the deadband should be decreased. Range 00-100 corresponds to 0%-10% of control point signal. Note: Maximum deadband is 10% of valve stroke. The deadband should normally not be less than 1%. | Inhibit Time [Ft] | |||
| Fig.4.5.26 | Fig.4.5.28 In order to prevent the actuator from working frequently within much short time or for rapidly fluctuating signal, it appears an appropriate delay to prevent unnecessary movement. Inhibit time is interval time both of two actions. The parameter is set to adjust interval time both of two actions. Second is the unit, and range of it is 00-99 seconds. It generally suggested that the setting of inhibit time should not less than three seconds. Select correct indication functions with +or - keys , and press "enter" key. Refer to picture 4.5.28. The default setting is [05]. | |||||
| If the actuator appears overshoot when it is in remote operation and needed to stop exactly in a certain place, namely, the actuator overrides the set position a little. Fo is a time unit for opening direction stop, overshooting will be inhibited by adjusting Fc parameter There are five parameters: [00] not stopping in advance o [01] stopping one time unit in advance [02] stopping two time units in advance | Deadband set [Fd] | Maximum deadband is 10% of valve stroke. The deadband should normally not be less than 1%. Select correct indication functions with +or - key, and press "enter" key. Refer to picture 4.5.27. The default setting is [12], namely, the deadband set is 1.2% of valve stroke. | ||||
| Fig.4.5.27 If the modulating actuator can't stop at a certain place, namely, hunts or responds to certain unnecessary | ||||||
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