Installation, Operation and Maintenance Manual
MAN-02-04-97-0713-EN Rev. 1
October 2019
101
Section 12: Troubleshooting
Troubleshooting
Table 19. Alarm Table
Display
message
Condition for
alarm
Action
Available Controls
Alarm
reset
Local
Remote
ESD
High torque in
closing
Measured torque
greater than the
relevant value
configured in
torque set-up
or stroke limits
routine
Operate the actuator
in opening direction.
Check the torque
needed to operate
the valve
Only open Only open
Configuration
dependent
Open control
High torque in
opening
Measured torque
greater than the
relevant value
configured in
torque set-up
or stroke limits
routine
Operate the actuator
in closing
direction. Check the
torque
needed to operate
the valve
Only close Only close
Configuration
dependent
Close control
Jammed valve in
closing
No position
change after
receiving a CLOSE
control command
Check status of
actuator and valve
mechanical parts
Only open Only open
Only open
Open control
Jammed valve in
opening
No position
change after
receiving an OPEN
control command
Check status of
actuator and valve
mechanical parts
Only close Only close
Only close
Close control
Motor thermostat
Motor thermostat
open due to high
temperature in the
motor windings
Wait until the motor
cools down
Not
available
Not
available
Configuration
dependent
When
thermostat
closes
Internal-
temperature
Temperature
inside the actuator
enclosure higher
than 90°C (194°F)
or lower than
-40°C (-40°F)
Ambient
temperature too
high or too low.
Verify insulation
among actuator and
heat source
Not
available
Not
available
Not available
Control
temperature
<90°C (194°F)
or >-40°C
(-40°F)
Position sensor
Value of the
actuator position
is not valid
Replace position
sensor or re-calibrate
both stroke limits
Not
available
Not
available
Not available
Position
signal
correct
Speed sensor
Measure of motor
speed is not valid
Replace speed sensor
Not
available
Not
available
Not available
Speed signal
correct
Mid travel alarm
in OP
The valve does not
move in presence
of an open control
Check status of
actuator and valve
mechanical parts.
Recalibrate both
stroke limits
Only close Only close
Only close
Close control
Mid travel alarm
in CL
The valve does not
move in presence
of a close control
Check status of
actuator and valve
mechanical parts.
Recalibrate both
stroke limits
Only open Only open
Only open
Open control
Main voltage
Main voltage
lower than -20% or
higher than+20%
of the value stated
in the nameplate
menu
Check main voltage
supply and frequency
on terminals L1, L2,
L3. Check that wires
section is correct
Not
available
Not
available
Not available
Main voltage
correct