CONFLOW 20VT EP, Руководство по установке и обслуживанию

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VTop Control Valves
M/VTOP-M/E ed. 01 2020
WWW.CONFLOW.IT Page 25
Red LED Green LED
Fi
xe
d on
Fast
flash
in
g
Slo
w
fla
sh
in
g
O
ff
Fi
xe
d on
Fast
flash
in
g
Slo
w
fla
sh
in
g
O
ff
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