Samson 3730-6, Mounting And Operating Instructions

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Turn ®
MAN2
Press to adopt the initialization mode
MAN2
®
POS1
and the current angle posi-
tion of the lever are indicated on the display
in alternating sequence.
Turn
clockwise in small steps until the re-
quired valve position is reached. The valve
must be moved with a monotonically in-
creasing signal pressure.
Press
to confirm the valve position ®
WAIT. The valve position is adopted after
the pressure settles ® POS2 and the current
angle position of the lever are indicated on
the display in alternating sequence.
Turn
until the required OPEN position of
the valve is reached.
Press
to confirm the valve position ®
WAIT.
Initialization can be started as soon
as
MAN2
is indicated again on the display.
Start initialization:
4
Press INIT key to start initialization!
After initialization, the tight-closing function
(Code 14) is deactivated.
7.6.5 SUB – Substitute calibration
A complete initialization procedure takes
several minutes and requires the valve to
move through its entire travel range several
times. This initialization mode, however, is
an emergency mode, in which the control
parameters are estimated and not deter-
mined by an initialization procedure. As a
result, a high level of accuracy cannot be
expected. You should always select a differ-
ent initialization mode if the plant allows it.
The
SUB
initialization mode is used to re-
place a positioner while the process is run-
ning. For this purpose, the control valve is
usually fixed mechanically in a certain posi-
tion, or pneumatically by means of a pres-
sure signal which is routed to the actuator
externally. The blocking position ensures
that the plant continues to operate with this
valve position.
The blocking position can also be the
fail-safe position when this condition is ben-
eficial for the temporary phase.
NOTICE
Perform a reset before re-initializing the
positioner if the substitute positioner has al-
ready been initialized. Refer to section 7.9.
Enable configuration:
Note: If no settings are entered within
120 seconds, the enabled configuration
function becomes invalid.
Enable configuration
Default No
Turn ® Code 3 , display: No
Press , Code 3 blinks
Turn ®
YES
Press , display
EB 8384-6 EN
65
Start-up – Settings