22 7 ND93H 70 en
7.4 Warnings 7.5 Notifications
Display message Description
TOTAL OPERATION TIME
WARNING
Operating time exceeded
limit.
VALVE FULL STROKES
WARNING
Valve stroke counter limit
reached.
VALVE REVERSALS
WARNING
Valve reversals counter limit
reached.
ACTUATOR FULL STROKES
WARNING
Actuator stroke counter limit
reached.
ACTUATOR REVERSALS
WARNING
Actuator stroke counter limit
reached.
SPOOL FULL STROKES
WARNING
Spool stroke counter limit
reached.
SPOOL REVERSALS
WARNING
Spool reversals counter limit
reached.
STEADY STATE DEVIATION
WARNING
Warning that steady state
deviation has increased.
DYNAMIC STATE DEVIATION
WARNING
Warning that dynamic state
deviation has increased.
STICTION LOW WARNING Warning that stiction has
exceeded the low limit.
STICTION HIGH WARNING Warning that stiction has
exceeded the high limit.
LOAD FOR OPENING TOO
LOW
Warning that load for
opening has exceeded the
low limit.
LOAD FOR OPENING TOO
HIGH
Warning that load for
opening is has exceeded the
high limit.
SUPPLY PRESSURE OUT OF
LIMITS
Supply pressure has
exceeded the specified
operating conditions.
TEMPERATURE OUT OF
LIMITS
Temperature has exceeded
the specified operating
conditions.
HUNTING DETECTION
WARNING
Valve hunting detected.
Change performance level to
less aggressive to stabilize
valve. Check that the spool
valve capacity is suitable for
the actuator.
REDUCED PERFORMANCE
ACTIVATED
Valve controller performance
is reduced due to defective
spool valve sensor. Change
the spool valve assembly.
TOO LOW SUPPLY PRESS
FOR 1-ACT ACTUATOR
Too low supply pressure level
for 1-acting actuator.
VALVE REVERSALS TREND
WARNING
Warning that valve reversals
per day has exceeded the
limit.
SETPOINT REVERSALS
TREND WARNING
Warning that setpoint
reversals per day has
exceeded the limit.
VALVE TRAVEL TREND
WARNING
Warning that valve travel per
day has exceeded the limit.
VALVE REVERSALS WH
STABLE SETP WARNING
Warning that valve reversals
while setpoint is stable, per
day, has exceeded the limit
Display message Description
CALIBRATION
SUCCESSFULL
Position calibration
successfully performed.
TEST CANCELLED Off-line test has been
cancelled.
TEST DONE Off-line test has been
successfully performed.
TEST FAILED Off-line test failed. Repeat
the test sequence.
CALIBRATION CANCELLED Calibration has been
cancelled.
PARAMETERS BACKUP
RESTORED
Parameter backup database
has been activated.
PT NOT ACTIVATED (Only with position
transmitter option).
The position transmitter is not
energized.
1PT CAL FAILED 1-point calibration failed.
Check the mounting of the
valve controller. Verify input
parameter (range) value.
Check rotation parameter
(ROT).
TUNE OK Tuning has been
successfully performed.
REDUCED PERFORMANCE
DEACTIVATED
Spool valve measurement
and normal valve control is
recovered.