Burkert 8630 Operating Instructions Manual page 125

6.6.2 MANUAL operating mode
In the MANUAL operating mode the valve can be opened or closed manually.
Key functions in the MANUAL operating mode:
and
and
Display indications in MANUAL operating mode:
1. Process controller not active
• The last indication of the AUTOMATIC operation mode is displayed.
Selecting POS__xxx provides an option to check the actual value of the actuator.
2. Process controller active
• The last indication of the AUTOMATIC operation mode is displayed.
Selecting PV__xxx provides an option to check the actual value of the actuator.
• To display the actual value of the actuator during the MANUAL operation mode,
previously selected in the AUTOMATIC mode display POS__xxx.
Normal / Quick manual operating of the valve:
By continuously pressing the "up arrow" key in the MANUAL operating mode, the valve is continuously opened.
To stop the function release the key and the valve will remain in the open position. By pressing the "down arrow" key the valve will
be closed proportionally.
An additional pressing of the second arrow key generates a quick action of the valve (closing or opening) depending on the first
selected arrow (Fig. 6.20).
Fig. 6.20: Operation structure and operating instructions in MANUAL mode
Top Control Positioner
(yellow LED off)
Pressing the "up arrow" key:
Opens the actuator
Pressing the "down arrow" key:
Closes the actuator
Continuously pressing the "up arrow" and "down arrow" keys simultaneous:
Produces a quick opening action
Continuously pressing the "down arrow" and "up arrow" keys simultaneous:
Produces a quick closing action
AUTOMATIC
mode
MANUAL
mode
Valve
closed -
normal speed
Leave the key
Leave the key
Valve
closed -
high speed
No activity
of the
operator
Leave the key
(> 5 s)
Point of menu
Configuration
Valve
open -
normal speed
Leave the key
Valve
open -
high speed
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