Controlli MVE506 - Diagnostic and Alarm Functions; LED Indicators for Faults; Troubleshooting and Resetting

ISO 9001
DIAGNOSTIC - ALARM FUNCTIONS
N° LED Error When Actuator Behaviour
Typical
trouble
shooting
condition
Reset procedure
Automatic Calibration SW7
OFF
Manual Calibration SW7
ON
1 RED ON
Calibrated
stroke valve
less than 5
mm
Calibration /
fi rst installation
The actuator pushes/pulls
5 times (unexpected stall)
trying to remove the possible
obstacle. After 5 tries alarm is
signalled (RED Led ON) and
the actuator moves to initial
position and does not respond
to control signal. Stroke value
is not updated beacuse out of
range
The actuator pushes/pulls
2 times against endpoint
during calibration. Alarm
is signalled (RED led On)
and the actuator moves to
the initial position and then
it does not reposnd to the
control signal.
Valve with a
stroke lenght
lower than 5
mm
Remove power
and power up
again
2 RED ON
Stroke longer
than 60 mm
Calibration /
fi rst installation
The actuator exits the 60 mm
stroke range and it moves
toward the new stroke limit
signalling an anomaly (RED
led on). Tha actuator does not
calibrate the stroke
The actuator pushes/pulls
2 times against endpoint
during calibration. Alarm
is signalled (RED led On)
and the actuator moves to
the initial position and then
it does not reposnd to the
control signal.
Valve with a
stroke lenght
longer than 60
mm
Remove power
and power up
again
3
RED Quick
Blinking +
GREEN ON
Unexpected
stall within
the calibrated
stroke range
normal
operation
The actuator tries 5 times
against the new stall condition
and then after 10 second the
actuator updates the new
stroke lenght; RED led is ON
The actuator tries 5 times
against the new stall
condition and then after 10
second the actuator does
not update the new stroke
lenght
Valve stuck
Inverted control
signal
4
RED Quick
Blinking +
GREEN ON
Stroke
longer than
expected
normal
operation
The actuator moves toward
the new stall condition with a
lower speed; after 10 second
the actuator updates the new
stroke value
The actuator moves toward
the new stall condition with
a lower speed; after 10
second 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
transormer
size
Correct Voltage
Power
2. unstable
power
6
RED slow
Blinking
High Power
Voltage
normal
operation
The actuator still working
but performance cannot be
guaranteed
The actuator still working
but performance cannot be
guaranteed
1. Wrong
transformer
size
Correct Voltage
Power
2. unstable
power
1st Issue rev. a 04/12 5 DBL388e