N°
LEDs
behaviour
Error
Actuator use
Actuator behaviour
Typical
trouble
shooting
condition
Reset
procedure
Automatic calibration
(DIP N. 7 OFF)
Manual calibration
(DIP N. 7 ON)
1
RED ON
Valve stroke
less than
5mm
Calibration/first
installation
The actuator pushes/
pulls 2 times (unexpected
stall) trying to remove the
possible obstacle. After 2
tries an alarm is signalled
and the actuator moves to
initial position and does not
respond to control signal.
Stroke value is not updated
because out of range
The actuator pushes/pulls
2 times against endpoint
during calibration and the
actuator moves to the initial
position and then it does not
respond to the control signal.
The actuator keeps the
previous stroke
Valve with a
stroke length
lower than
5mm
Remove
power and
power up
again
2
RED LED
quick
bl
GREEN ON
Stroke longer
than 60mm
Calibration/first
installation
The actuator exits the 60mm
stroke range and it moves
toward the new stroke limit
signalling an anomaly. The
actuator pushes/pulls 2 times
against the new stroke limit,
then it goes back to the
initial position still signalling
the anomaly until it is not
within 60mm. The actuator
does not calibrate the stroke
after 10s (wrong range)
The actuator exits the 60mm
stroke range and it moves
toward the new stroke limit
signalling an anomaly. The
actuator pushes/pulls 2 times
against the new stroke limit,
then it goes back to the
initial position still signalling
the anomaly until it is not
within 60mm. The actuator
does not calibrate the stroke
after 10s (wrong range)
Valve with a
stroke length
longer than
60mm
Remove
power and
power up
again
3
RED Quick
Blinking
Unexpected
stall within the
calibrated
stroke range
NORMAL
OPERATION
The actuator tries 5 times
against the new stall
condition and then after 10s
the actuator updates the
new stroke length
The actuator tries 5 times
against the new stall
condition. At the end of the
attempts the fault will be
signalled. The actuator does
not update the new stroke
length, but after 60s makes
other attempts to verify the
stall condition
Valve stuck
Inverted
control
signal
4
RED Quick
Blinking
Stroke
longer than
expected
NORMAL
OPERATION
The actuator moves toward
the new stall condition with
a lower speed; after 10s the
actuator updates the new
stroke value
The actuator moves toward
the new stall condition with
a lower speed; after 10s the
actuator does not update
the new stroke value
Stem
connection
loose or
valve
damaged
Inverted
control
signal
5
RED slow
Blinking
Low Power
Voltage
NORMAL
OPERATION
The actuator is still working
but performance cannot be
guaranteed
The actuator is still working
but performance cannot be
guaranteed
1. Wrong
transformer
size
Correct
Voltage
Power
2. Unstable
power
6
RED slow
Blinking
High Power
Voltage
NORMAL
OPERATION
The actuator is still working
but performance cannot be
guaranteed
The actuator is still working
but performance cannot be
guaranteed
1. Wrong
transformer
size
Correct
Voltage
Power
2. Unstable
power
1
a
Emissione / 1
st
Issue rev. d
03/2020
7
DIM265