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BIFFI FAIL SAFE ELECTRIC ACTUATORS, MODEL EFS2000V4
InstructIon and operatIng Manual
View procedure
• Move the local selector to OFF and then
simultaneously press OPEN and STOP within
20 sec (see chapter ‘Local controls, entering
the set-up mode’). Select the language
and enter the password according to the
instructions (see ‘Entering the set-up mode’).
When the message displayed is ‘SET-UP
MODE OK?’ press YES. Press NO to scroll
through the list of available menus and then
press YES to select the Nameplate menu.
• Press YES to answer the prompt ‘view’ or
‘next’ and see the data in the above list.
14.3 Valve data
To identify the valve and its function in the
process the following data can be viewed.
• Tag name (max. 28 char.)
• Serial number (max. 28 char.)
• Manufacturer (max. 28 char.)
• Break-OP torque (max. 28 char.)
• Break-CL torque (max. 28 char.)
• Max stem thrust (max. 28 char.)
• Flange type(max. 28 char)
The data should be entered by the valve
manufacturer or by the end user during set-up
operations.
View procedure
• Move the local selector to OFF and then
simultaneously press OPEN and STOP. Select
the language according to the instructions
(see ‘Entering the view mode’). When the
message displayed is ‘VIEW MODE OK?’ press
YES. Press NO to scroll through the list of
available menus and press YES to select the
Valve data menu.
• Press YES to answer prompts ‘view’ or ‘next’
and see the data in the above list.
14.4 Maintenance
14.4.1 Alarm log
The alarm log routine is used to view the list of
the latest 64 alarms and 64 warnings and the
data when they occurred. The ‘clear alarm log’
routine of the set-up menu should be used to
clear the list.
View procedure
• Move the local selector to OFF and then
simultaneously press OPEN and STOP
within 20 sec (see chapter ‘Local controls,
entering the view and set-up mode’). Select
the language according to the instructions
(see ‘Entering the view mode’). When the
message displayed is ‘VIEW MODE OK?’ press
YES. Press NO to scroll through the list of
available menus and then press YES to select
the Maintenance menu.
• Press YES to answer the prompt ‘Alarm log
view?’.
• Press YES to scroll through the list of alarms
(‘Alarms view?’).
• Press NO to move on to ‘Warnings view?’
and then YES to scroll through the list of
warnings.
14.4.2 Torque profile
The torque profile routine gives important
information on the actuator working conditions
in comparison with a previously memorized
reference profile. It can give a summarized but
significant indication of a change in the process
conditions.
Details are given of the reference and latest
torque expressed in percentage of the nominal
torque.
At the end of a full stroke in opening or closing,
the ICON2000 stores the 3 maximum torque
values in position intervals 0%-10%, 10%-90%,
90%-100% in opening, and the 3 maximum
torque values in position intervals 100%-90%,
90%-10%, 10%-0% in closing. Time and date
of strokes are also saved. The above data are
updated at the end of every full valve stroke and
the previous ones are lost. Function ‘set torque
reference’, in the Set-up menu, Maintenance,
(Chapter I), allows saving the ‘torque profile’
data in the ‘torque profile reference’ with date
and time. The ‘torque profile reference’ will not
be updated until a new ‘set torque reference’
command is entered. The user can compare
the last torque profile relevant to the last valve
stroke with the torque profile reference saved
before. The following definitions will be used:
• Breakout: maximum torque percentage in
position interval 0-10% in opening or 100%-
90% in closing = maximum percentage of
torque to unseat the valve.
• Peak Running: maximum torque percentage
in position interval 10-90% in opening or
90%-10% in closing = maximum percentage
of torque when the valve runs from Breakout
to Ending (maximum mid travel).
• Ending: maximum torque percentage in
position interval 90-100% in opening or
10%-0% in closing = maximum percentage of
torque to seat the valve.
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