Motor Actuated Valve

Owned by Gary Cane
May 09, 2022


Operator Menu Location: Generic Hardware Operators -> Motors/Valves


Operator Bitmap:


Functional Description:
This operator acccepts drive and setting inputs which command the motor controlling the Smart Valve. The valve logic tries to maintain the desired position, defined by input pin . This logic may be overridden by outside user commands, transmitted to the logic via its input pins, as described below. The operator must be linked to valve hardware in the HWI.


Pin is the analog value, a percentage, at which the valve is desired to be opened. Sets the desired position of the valve. Note: If it is desirable (for example on first boot) to keep the actuator in the same position without knowing current position, it is recommended to set this pin to a number <0.


Pin , when changed to HIGH and Failsafe Emergency Override is not active, sets the destination position to 100 and starts opening the valve if it is not already at 100 percent open. If the valve is closing, the motor is stopped. Otherwise, the system initializes the travel timer and tests to ensure system settings (torque, temperature, current and phase alarms) will allow the valve to open. If allowed, alarms are reset and the valve position is tested. Power is then issued to the motor to open the valve. While the valve is opening internal valve diagnotics are executed. The system tests for a torque alarm situation. If there is none, it tests to see if the valve is open and stops if it is. The motor runs until the valve is fully open.


Pin , when changed to HIGH and Failsafe Emergency Override is not active, sets the destination position for the valve to 0 and starts closing the valve if it is not already at 0 percent open. If the valve is opening, the motor is stopped. Otherwise, the system initializes the travel timer and tests to ensure system settings (torque, temperature, current and phase alarms) will allow the valve to close. If allowed, alarms are reset and the valve position is tested. Power is then issued to the motor to close the valve. While the valve is closing internal valve diagnotics are executed. The system tests for a torque alarm situation. If there is none, it tests to see if the valve is closed and stops if it is. The motor runs until the valve is fully closed.


Pin , when changed to HIGH and Failsafe Emergency Override is not active, the motor is stopped, and the Open Tourqe, Close Torque, Stalled, Failed to Open and Failed to Close alarms are reset. It then sets the destination position for the valve to its current position.


Pin , when changed to HIGH, initiates automatic position regulation for the valve actuator. The actuator will use the motor to hold the desired position. If the hand wheel attempts to reposition the valve, the motor will automatically adjust the valve back to the desired position


Pin , when changed to HIGH, the actuator will automatically disable the motor when an over temperature condition is detected.


Pin resets the faults and alarms when the pin is HIGH.


Pin , when changed to HIGH, checks the analog setting of pin . If is is 'Opened', the DriveOpen command is issued. If is set to 'Closed', the DriveClose command is issued. The third option, 'Stay Put', results in a Stop command.


Pin is a float value which indicates the current position of the valve.
Pin Indicates if the valve is currently opening.
Pin Indicates if the valve is currently closing.
Pin Indicates if the valve is currently open.
Pin Indicates if the valve is currently closed.
Pin Indicates if any actuator faults are active.


User-Defined Properties:
Object Name. A string label that identifies the operator

Display Desired Valve Position. This property determines if input pin is visible in the schema diagram. The analog pin accepts the desired valve position as a percentage of fully open. Design Pad issues a warning upon processing the schema when the pin is visible but not connected. The warning message is not issued when the pin is not visible (when this property is not checked).
Display Command Open.  Displays an input pin to command the valve to open. This property determines if input pin is visible in the schema diagram. Design Pad issues a warning upon processing the schema when the pin is visible but not connected. The warning message is not issued when the pin is not visible (when this property is not checked).
Display Command Close. Displays an input pin to command the valve to close. This property determines if input pin is visible in the schema diagram. Design Pad issues a warning upon processing the schema when the pin is visible but not connected. The warning message is not issued when the pin is not visible (when this property is not checked).

Display Enable Automatic Position Regulation. Regulate the valve position automatically if signal on this pin is HIGH. This property determines if input pin is visible in the schema diagram. Design Pad issues a warning upon processing the schema when the pin is visible but not connected. The warning message is not issued when the pin is not visible (when this property is not checked).
Display Enable Automatic Motor Over-Temperature Shutdown. Automatically react to over-temperature conditions if this pin is HIGH based on schema conditions. This property determines if input pin is visible in the schema diagram. Design Pad issues a warning upon processing the schema when the pin is visible but not connected. The warning message is not issued when the pin is not visible (when this property is not checked).

Automatic Motor Over-Temperature Shutdown. Turn Automatic Shutdown on or off when pin is not used to determine this setting.

Display Reset Faults and Alarms. If this pin is visible use its signal to determine if Alarms and/or Faults should be reset. This property determines if input pin is visible in the schema diagram. Design Pad issues a warning upon processing the schema when the pin is visible but not connected. The warning message is not issued when the pin is not visible (when this property is not checked).

Display Failsafe Emergency Override. This property determines if input pin is visible in the schema diagram. Design Pad issues a warning upon processing the schema when the pin is visible but not connected. The warning message is not issued when the pin is not visible (when this property is not checked).
Display Failsafe Emergency Override Position. This property determines if input pin is visible in the schema diagram. Design Pad issues a warning upon processing the schema when the pin is visible but not connected. The warning message is not issued when the pin is not visible (when this property is not checked).
Failsafe Emergency Override Position. Indicates whether Failsafe Emergency Override valve position is open, closed or stays where it was if pin is not used..1 is Open, 0 is Closed, and all others are Stay Put

 Comments:  None


See Also: MAV Detail, I/O Pressure Sensor Pair