Pepperl+Fuchs FD0-VC-Ex4.FF Manual page 41

Parameter
XD_ERROR
Valve warning
Valve error
Subject to reasonable modifications due to technical advances.
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Problem
Message
Mechanical error
Valve Lead Fault
Sensor Lead Fault
Breakaway time ... too long
Transit time ... too long
(... = C->O or O->C)
Breakaway time ... too short
Transit time ... too short
(... = C->O or O->C)
Valve blocked
Valve left final position
Position detection failure
Fieldbus Valve Coupler FD0-VC-Ex4.FF
Error detection and problem solutions
Elimination of error
Cause
Combined error signal of
the errors displayed in
"Valve Error".
Combined error signal of
the errors displayed in
"Valve Lead Fault Moni-
toring".
Combined error signal of
the errors displayed in
"Sensor Lead Fault Mon-
itoring".
The measured time was
longer than the refer-
ence value plus the
admissible allowance.
The measured time was
shorter than the refer-
ence value minus the
admissible allowance.
The valve is signalled
blocked, if a time t >
5*(breakaway time +
transit time) elapsed
since the issue of the
new reference value.
The valve has left the
reached final position
without modification of
the reference value for
the valve position.
The signal combination
of the PFCs is not
assigned to a valve posi-
tion.
The PFCs have sig-
nalled an unexpected
valve position; open -
intermediate - closed
and/or vice versa was
expected.
Copyright Pepperl+Fuchs, Printed in Germany
Elimination
See "Valve Error".
See "Valve Lead Fault Moni-
toring".
See "Sensor Lead Fault
Monitoring".
• Check auxiliary power.
• Check reference times and
allowances.
• Check PFCs for proper
functioning.
• Check friction of valve.
• Check auxiliary power.
• Check reference times and
allowances.
• Check PFCs for proper
functioning.
• Check friction of valve.
• Check reference times.
• Check PFCs for proper
functioning.
• Check auxiliary power.
• Test valve drive.
• Check parameterisation of
"Sensor Usage" (section
6.5.4).
• Check PFCs for proper
functioning.
• Check auxiliary power.
• Test valve drive.
• Check parameterisation of
"Sensor Usage" (section
6.5.4).
• Check PFCs for proper
functioning.
• Check parameterisation of
"Sensor Usage" (section
6.5.4).
• Check PFCs for proper
functioning.
• Check auxiliary power.
• Test valve drive.
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