Confirming Error Messages; Emergency Action - Samson 3730 Series Mounting And Operating Instructions

Malfunctions
If the positioner has not been initialized, the
maintenance alarm icon () is displayed as
the positioner cannot follow its set point.
If fault alarms exist, the possible source of
error is displayed in Code 49 onwards. In
this case, Err is displayed.
S
Refer to the code list (section 11.3) for possi-
ble causes and the recommended action.

9.1 Confirming error messages

Enable configuration:
1. Turn until Code 3 appears (read-
ing: No).
2. Press , the code number 3 blinks.
3. Turn until YES appears.
4. Press to confirm (reading: ).
Confirming error message:
1. Turn until the the error code that
you want appears.
2. Press to confirm the error message.
122
Example:
Error caused by pin position

9.2 Emergency action

Fail-safe action is triggered by the i/p con-
verter or solenoid valve and upon supply air
failure. The positioner fully discharges its
pneumatic output to the atmosphere, causing
the mounted actuator to be vented. As a re-
sult, the valve moves to the fail-safe position.
The fail-safe position depends on how the
springs are arranged in the pneumatic actu-
ator (air-to-close or air-to-open).
When the supply air fails, the optional sole-
noid valve is triggered or after reaching the
shutdown signal, all positioner functions, ex-
cept open/closed loop control, remain active
(including diagnostics as well as position
and status feedback).
Tip
Emergency action in the event of valve or ac-
tuator failure is described in the associated
valve and actuator documentation.
Î The plant operator is responsible for
emergency action to be taken in the
plant.
EB 8384-5 EN