VTop Control Valves
M/VTOP-M/E ed. 01 2020
Red LED
Green LED
Fi
xe
d on
Fast
flash
in
g
Slo
w
flash
in
g
O
ff
Fi
xe
d on
Fast
flash
in
g
Slo
w
fla
sh
in
g
O
ff
Actuator errors
Possible causes
Possible solutions
X
X
The actuator has reached the end
of its life
Wear or operating
cycles
Contact PS service team
X
X
Electronic errors or invalid
parameters
1)
Power supply cut
during commissioning
2)
Electrical
component defects
1)
Relaunch the parameters
(-> see AMS-PSCS manual),
then repeat commissioning
2)
Contact PS service
team
X
X
Critical or maximum
temperatures reached
1)
Number starts too high
2)
Ambient temperature
too high
1)
Check application
settings
2)
Check ambient
temperature and try to
reduce it -> see relevant
information pages
X
X
Wrong mechanics on actuator
Mechanical component
faults
Contact PS service team
5 – RISK ANALYSIS
This document assesses the risks relating to the equipment indicated above, which can arise during its use, installation
or movement, in compliance with the provisions of the Directive PED 2014/68/EU. The provisions are also indicated to
comply with to avoid them arising.
The classification of the SOLUTIONS implemented is as follows:
1. Solution to eliminate and/or reduce the risk.
2. Application of the appropriate safety measures against the risks which cannot be eliminated
3. Information for users
CAUSE
EXCESS PRESSURE OVER THE MAXIMUM PERMITTED PRESSURE “PN”
EFFECT
Broken body, cracks, permanent deformations
DANGER
Projection of metal parts, leaking fluid
SOLUTION
1. The body unit is constructed with due safety margins.
2. The system must be fitted with the “Safety Accessories” planned by the Decrees in place
in the country of origin.
3. The label outlines the maximum permitted pressure “PN”
CAUSE
EXCESS PRESSURE OVER THE MAXIMUM PERMITTED TEMPERATURE “TS”
EFFECT
Internal excess pressure
DANGER
Breakage or deformation of the body, leaking fluid
SOLUTION
1. The body unit is constructed with due safety margins.
2. The system must be fitted with the “Safety Accessories” planned by the Decrees in place
in the country of origin.
3. The maximum temperature is declared on our “data sheet” specifications and must be
checked by whoever sizes and/or chooses the valve