BIFFI EFS2000v4 - Page 40

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BIFFI FAIL SAFE ELECTRIC ACTUATORS, MODEL EFS2000V4
InstructIon and operatIng Manual
13.1.13.5 Valve jammed (time)
The valve jammed time is used to monitor the
following situations:
1. The time passed after receiving an open
or close control is longer than the ‘valve
jammed time’, but the valve position
variation is smaller than 0,5%. The motor
is blocked, the command is cleared and
the ‘valve jammed’ alarm indication is
generated.
2. The valve is moving, but during the travel the
position valve variation is smaller than 0,5%
in a time equal to ‘valve jammed time’. The
motor is blocked, the command is cleared
and the ‘mid-travel alarm’ indication is
generated.
The valve jammed time is expressed in seconds
and can be configured from 0 to 100 sec.
Configure ‘0’ to exclude the routine.
Configuration 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 YES to select
actuator set-up menu, press NO to scroll
through the list of available routines and then
press YES to select Miscellaneous.
• Press No to scroll through the list of routines
and press YES to select valve jammed. Press
YES if the setting is correct, press NO to
change. Press YES when the value is correct.
13.2 Valve data
The valve data allow identifying the valve and its
function in the process. The valve manufacturer
and the end user can enter the data. The
following data can be entered:
• 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.)
13.3 Maintenance
A large amount of data is stored in the actuator
memory and is available for future analysis
or to assist the operator in the maintenance
program. The maintenance menu also includes
the set password routine, and the possibility to
modify or start the maintenance functions. The
following data are available:
• Set password
• Clear alarm log
• Set torque reference
• Set curve reference
• Clear recent data log
• Set maintenance date
• Set data logger
• Set EFS baseline
• Set PST baseline
• PST command (normal or baseline)
Configuration 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 valve data menu.
• Press NO to scroll through the list of available
routines and then press YES to select the data
to be changed (tagname, serial number, etc).
• Press YES if the 1st character of the string is
correct. Press NO to scroll through the list of
available characters. Press YES to select the
desired character.
• Enter up to 28 characters. Enter a blank
character, and ‘……’ as end of string.