Samson TROVIS SAFE 3730 Series, Operating Instructions Manual

Page: 105 / 120

EB 8389-1S EN 105
Appendix
Message Possible reasons Recommended action
Status
classification Single reset
Defective actuator
springs − The actuator spring pre-loading
is reduced. − Check actuator springs. •
[ ]
•
u
Sec. 4.5
Supply pressure status − The supply pressure is outside
permissible limits. − Check supply pressure. •
[ ]
•
u
Sec. 4.5
−
The supply pressure is too high. •
[ ]
− The supply pressure fluctuates. •
[ ]
−
The supply pressure is too low. •
[ ]
− No supply pressure is available. •
[ ]
Diagnostics > Monitoring > Valve position
Manipulated variable
range limitation
−
The working range is limited at
upper or lower range value.
− The valve is jammed.
−
Check that pneumatic installa-
tions and connections are tight.
− Check supply pressure.
−
Check plug stem for external in-
fluences that could be blocking
it.
•
[ ]
•
u
Sec. 7.2
Course of end position
−
Course of end position mono-
tonically increasing/decreasing.
− The course of end position
alternates.
−
Check seat and plug. •
[ ]
•
u
Sec. 10.2
Positioner-valve linkage
−
No optimal travel transmission.
− The working range is limited.
−
Check attachment. •
[ ]
•
u
Sec. 7.2
Manipulated variable
range − The working range is mainly
close to the CLOSED/max.
OPEN position.
− The working range is mainly in
the CLOSED/max. OPEN
position.
− Rethink the working range. •
[ ]
•
u
Sec. 6.2
Appendix