Priority To Open Or To Close - Bernard Integral+ Commissioning Instructions

6.4 PRIORITY TO OPEN OR TO CLOSE

In standard there is no priority to open or to close. These priorities are used to:
- Change the direction during operation without going through a stop command. In that case prio-
rity to Open and to Close are needed.
- Give priority to one position: if the actuator receives both open and close command and a priority
to Open or to Close are needed.
- Control by a single dry contact
Switches 9 and 10
Move switch 9 to position B for priority to Close.
Move switch 10 to position B for priority to Open.
Priority command stops the pending operation and is immediately active.
6.5 EMERGENCY COMMAND (ESD)
ESD (Emergency Shut Down) is a remote emergency control, with priority on all other controls.
According to the valve operation, ESD can be open command or close command. To increase
the availability of the actuator in extreme conditions, ESD can also override the motor thermal
sensor.
Note: ESD is not available when local / remote selector is in position «OFF».
In standard, ESD control is performed by closing a contact. Jumper 27 position:
8
- Priority to Close
- Priority to Open
- Change of operation
direction without going
through a stop command