7 ND91P 70 en
21
7
ERROR MESSAGES
7.1
Failsafe errors
7.2
Alarms
7.3
Errors
Display message
Description
POSITION SENSOR FAILURE Position sensor measurement
failed. Change the ND9000
device to a new one.
PRESTAGE SHORTCUT
ERROR
Shortcut in the prestage unit.
FAE nnn
Fatal malfunction in the device.
nnn is a number between 001 -
004. Change the ND9000
device to a new one.
Display message
Description
DEVIATION ALARM
Valve deviation out of limits.
STICTION LOW ALARM
Stiction has exceeded the low
limit.
STICTION HIGH ALARM
Stiction has exceeded the
high limit.
LOAD FOR OPENING LOW
ALARM
Load for opening has
exceeded the low limit.
LOAD FOR OPENING HIGH
ALARM
Load for opening has
exceeded the high limit.
SPOOL VALVE PROBLEM
Spool valve problem in the
controller. Check the spool
valve unit and replace if
necessary.
PNEUMATICS PROBLEM
Inconsistent actuator
pressures. Check pneumatic
connections and actuator
leakage.
FRICTION PROBLEM
Valve is not moving correctly.
Check load factor.
Display message
Description
PRESTAGE CUT ERROR
Prestage wire is cut or
connector is loose.
PRESSURE SENSOR 1
FAILURE
Actuator pressure sensor has
failed. The device performance
level is reduced. Change the
ND9000 device to a new one
during next maintenance
activity.
PRESSURE SENSOR 2
FAILURE
Actuator pressure sensor has
failed. The device performance
level is reduced. Change the
ND9000 device to a new one
during next maintenance
activity.
PRESSURE SENSOR 3
FAILURE
Supply pressure sensor has
failed. This does not affect the
performance level.
SPOOL VALVE SENSOR
FAILURE
Spool valve sensor failed.
Check the sensor connections.
The device performance level is
reduced. Change the ND9000
device to a new one during
next maintenance activity.
TEMPERATURE SENSOR
FAILURE
Temperature measurement
failed. The accuracy of the
measurements is reduced.
Change the ND9000 device to
a new one during next
maintenance activity.
STATISTICS DATABASE
ERROR
Failed to store statistics. New
measurements will be lost.
EVENT DATABASE ERROR
Failed to store events. The
new events will be lost.
POSITION CALIBRATION
FAILED
Travel calibration failed.
Check the configuration
parameters and controller
mounting. Check that the
controller shaft is correctly
aligned.
TUNING FAILED
Tuning procedure failed.
Check that the valve is moving
properly. Check the prestage
and spool valve unit.
POSITION SENSOR RANGE
ERROR
Position sensor range failed
during calibration. Valve
controller shaft failed to rotate
minimum 45 degrees. Check
the configuration parameters
and controller mounting.
Check that the controller shaft
is correctly aligned.
CALIBRATION TIMEOUT
Calibration timeout occurred.
Check configuration and
installation.
CALIBRATION START FAILED The calibration starting
conditions are not met. Check
the supply pressure.
TUNING RANGE ERROR
Tuning procedure failed.
Check the prestage and spool
valve unit.
SPOOL SENSOR RANGE
ERROR
Spool sensor range failed
during position calibration.
Check the configuration
parameters. Check the
prestage and spool valve unit.
Содержание Neles ND9100P
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