Samson 3724, Mounting And Operating Instructions

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38 EB 8395 EN
Appendix
Code Display, values
[default setting]
Description
P11 Set point cutoff
increase (end position
w >)
ON/[OFF]
Upper tight-closing function:
If w reaches up to 99 % towards the final value that causes the valve
to open, the actuator is immediately completely filled with air (with
ATO - air to open) or vented (with ATC - air to close).
P12 Limit A1, min.
[2 %]
The lower switching point can be adjusted in steps of 0.5 %.
Note: Keep a distance of 5 % to the switching value adjusted in
P13 .
P13 Limit A2, max.
[98 %]
The upper switching point can be adjusted in steps of 0.5 %.
Note: Keep a distance of 5 % to the switching value adjusted in
P12 .
P14 Info w Initialized Indicates the internally adjusted set point in the positioner (adjusted
set point in 0 to 100 % according to the settings in P6 and P7 ).
Press to display external set point (applied set point in 0 to
100 % according to the 4-20 mA signal).
Not initialized Displays external set point in 0 to 100 % according to the 4-20 mA
signal.
P15 Start initialization
Press button to cancel the initialization process. As a result, the
valve moves to the fail-safe position.
After a power supply failure during initialization, the positioner
starts with the values of the last initialization (if available).
P16 Start zero calibration
The zero calibration process can be interrupted by pressing . The
control valve returns to closed-loop operation.
Note: A zero calibration cannot be started when E1 error code ex -
ists.
After a power supply failure during zero calibration, the positioner
starts with the settings from the last zero calibration.
P17 Manual mode 1) Press or to enter the set point.
P18 Reset Parameters are reset to their default setting.
The positioner can only return to closed-loop operation after it has
been re-initialized.
P19 Enable
configuration
[LOCK]/OPEN
Enable configuration to change parameter settings.
This function is automatically canceled when none of the keys are
touched within three minutes.
P20 Firmware version
Installed firmware version is displayed. Press to display the last
four digits of the serial number.
1)
Also not available when the positioner has not been initialized