Troubleshooting and Diagnosis
2
017-
06
51
Valve Error
Valve blocked
The valve is signalled
blocked, if a time t >
5*(breakaway time +
transit time) elapsed
since the issue of the
new reference value.
■
Check reference
times and
allowances.
■
Check final position
feedback contacts
for proper
functioning.
■
Check auxiliary
power.
■
Test valve drive.
Valve left final position The valve has left the
reached final position
without modification of
the reference value for
the valve position.
■
Check settings of
the Sensor Usage
parameter, see
chapter 4.5.3.
■
Check final position
feedback contacts
for proper
functioning.
■
Check auxiliary
power.
■
Test valve drive.
Position detection
failure
The signal combination
of the final position
feedback contacts is
not assigned to a valve
position.
■
Check settings of
the Sensor Usage
parameter, see
chapter 4.5.3.
■
Check final position
feedback contacts
for proper
functioning.
The final position
feedback contacts have
signalled an
unexpected valve
position. Open -
intermediate - closed or
vice versa was
expected.
■
Check settings of
the Sensor Usage
parameter, see
chapter 4.5.3.
■
Check final position
feedback contacts
for proper
functioning.
■
Check auxiliary
power.
■
Test valve drive.
Valve Lead Fault
Short Circuit Valve
Lead short circuit at
valve lead.
Check wiring.
Lead Breakage Valve Lead short circuit at
valve lead.
Check wiring.
Problem
Troubleshooting
