CONFLOW UNIWORLD Series - Page 30

UNIWORLD Series M/UNIWORLD-M/E ed. 01 2020
WWW.CONFLOW.IT Page 29
Red LED
Green LED
Fixed on
Fast flashing
Slow flashing
Off
Fixed on
Fast flashing
Slow flashing
Off
Errors inside actuator
environment
Possible causes
Possible solutions
X
X
Too much torque in valve stroke
1) The actuator was not
correctly commissioned on
valve
2) There is a mechanical jam
in the stroke
3) Wrong actuator
selection
1) Repeat commissioning
2) Check there are no
obstructions in actuator valve
3) Check actuator selection
X
X
1) Inappropriate process feedback(only
combined with PSIC)
2+3) The maximum control range
exceeded (only combined with PSIC)
1) Process feedback
wrong or not connected
2) Process feedback outside
setting range
3) Process sensors not
available
1) Apply the correct
process feedback and
check polarity
2) Ensure correct
feedback range of the
process
3) Check the process sensor
and its power supply
Errors inside actuator
environment
Possible causes
Possible solutions
X
X
The actuator goes to the
preselected position
1) The safety binary signal
is applied
2) Power supply errors in
actuators with PSCP option
1) Disconnect the signal
2) Check power
supply
X
X
Control signal disconnected or outside
range configured
1) Control signal not
connected
2) Wrong polarity of the
control signal
3) Control signal outside range
configured, please check
1) Apply control signal
2) Check polarity signal
3) Check signal range
X
X
Final position not reached
Valve seal loose or
dirty
Check valve seal
X
X
Final position surpassed
Valve seal worn or
faulty
Check valve seal
X
X
Actuator power supply too low
1) Power supply wiring
incorrect
2) Power supply
disturbances
3) Voltage too low from PSCP
(with PSCP option)
1) Check power supply
wiring
2) Check
power supply -> see datasheet
3) Contact PS service
team