Samson 3730 Series Operating Instructions

EB 8389-1S EN 103
Appendix
Message Possible reasons Recommended action
Status
classication Single reset
Collective error
(Code79)
Messages generated in EXPERTplus – – –
SIL test (Code 86) SIL operator test failed Return positioner to SAMSON for
repair.
– –
Set point outside range Set point smaller than 4 mA or
greater than 20 mA.
If possible, limit current source at
lower (4 mA) and/or upper
(20mA) limit.
– –
Binary input status Binary input is active – –
Temperature status − Temperature fallen below –40°C
− Temperature exceeded +80 °C
•
[ ]
–
x > range (Code 50) − Pin not mounted properly.
− NAMUR attachment: bracket
slipped or follower pin not prop-
erly seated on the follower
plate's slot.
− Follower plate not mounted
properly.
− Check attachment and pin posi
-
tion.
− Re-initialize positioner.
•
[ ]
•
∆x < range (Code 51) − Pin not mounted properly.
− Wrong lever mounted.
− Pressure limit set too low.
− Check attachment and pressure
limit.
− Re-initialize positioner.
•
[ ]
•
Attachment (Code 52) − Wrong lever mounted.
− Supply pressure too low; valve
cannot be moved to desired po-
sition.
− Nominal range could not be
reached during nominal range
initialization (NOM).
− Check attachment and supply
pressure.
− Re-initialize positioner.
•
[ ]
•
Initialization time
exceeded (Code 53)
Timeout detected during initializa-
tion
− Valve takes too long to open.
− Valve cannot nd xed end stops
(e.g. when lined control buttery
valves are used).
− Valve tends to hunt considerably.
− Check supply pressure and in-
stall pneumatic volume booster,
if necessary.
− Adjust travel/angle stops.
− Reduce hunting tendency (e.g.
restrict or open booster bypass).
Then re-initialize the positioner.
•
[ ]
•
Internal solenoid valve/
forced venting/supply
pressure (Code 54)
Internal solenoid valve/forced vent
-
ing not or improperly connected.
− Check connection and supply
voltage of solenoid valve/
forced venting.
− Re-initialize positioner.
•
[ ]
•
An attempt was made to initialize
the device from fail-safe position.
− Switch to manual mode.
− Re-initialize positioner.
Appendix

Samson 3730 Series Specifications

General

Brand	Samson
Model	3730 Series
Category	Valve Positioners
Language	English