Set Safety Position And Effective Direction; Adjustment Of Position Controller - Execute M.q0.Tune - Burkert 3323 Series Quick Start Manual

Type 3323, 3324, 3325
9.2 Set safety position and effective
direction
The effective direction and safety position are set using DIP
switches 1 and 2.
DIP switch 2
Set-point value
(0...5 V) (10...30 V)
Log 0 Log 1
Valve
NC OFF Valve open
closed
Valve
NO ON Valve open
closed
Tab. 11: Set effective direction and safety position
Start-up
DIP switch 1
Switch Safety
position position
(safety
position
activated /
deactivated)
ON Valve closed
none
OFF (actuator
stops)
ON Valve open
none
OFF (actuator
stops)
9.3 Adjustment of position controller –
execute M.Q0.TUNE
When executing the function M.Q0.TUNE the position control
is adjusted at the physical hub of the actuator in use and the
required closing force is determined.
To this end, the seal closure point must be approached manually.
It is important that the valve is not entirely closed. Based on this
position the device uses an algorithm to calculate the optimum
force for sealing.
Seal closure point: P osition at which the valve
Stroke
End position
Fig. 23: Seal closure point
NOTE!
Execute M.Q0.TUNE.
▶ Execute M.Q0.TUNE to ensure that the diaphragm closes
seal-tight under the specified conditions and that the ser-
vice life of the diaphragm is optimised.
▶ After changing the actuator or valve body, or if the opera-
ting conditions change, the M.Q0.TUNE must be carried
out again.
english
is almost seal-tight.
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