BIFFI EFS2000v4 - Set-Up Routines

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BIFFI FAIL SAFE ELECTRIC ACTUATORS, MODEL EFS2000V4
InstructIon and operatIng Manual
13 SET-UP ROUTINES
13.1 Actuator set-up
13.1.1 Set stroke limits
This routine allows the actuator to be
configured according to the type of valve it is
mounted on.
The following parameters will be set:
• Opening and closing torque limits: from 40%
to 100% of the nominal torque. The nominal
torque corresponding to 100% set in-house
and stored in the name plate menu for
reference.
• Close and open limits type: by position or by
torque. Use the following table to choose:
seetable below.
Valve type Close limit Open limit
Gate (solid, flexible and split wedge), globe, metal seated butterfly valves Torque Position
Ball, gate (parallel slide), plug valves, metal seated butterfly valves Position Position
Linear valves with back-seating on stem Torque or position Torque
Set-up 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
then enter the password according to the
instructions. When the message displayed is
“SET-UP MODE OK?” press YES. Press YES
to select the actuator set-up menu, and then
press YES again to start with the stroke limits
routine.
Press YES if the closing torque limit is correct
or NO to scroll the list of available values. When
the value is correct, press YES.
Press YES if the opening torque limit is correct
or NO to scroll the list of available values. When
the value is correct press YES.
Press YES to set the close limit, or NO and then
YES to set the open limit.
Close limit type
Press YES if the close limit type is correct
(torque or position), press NO to change it.
Press YES when the type is correct.
Close limit by position
Move the local selector to LOCAL. The local
controls can be used.
Move the valve to closed position by local
electrical command
Move the local selector to OFF
Press YES to confirm
Press YES to continue with the open limit
setting, or press NO and again NO to repeat
the close limit setting procedure. Press NO and
then YES to exit from the stroke limits routine.
Close limit by torque
Move the local selector to LOCAL. The local
controls can be used.
Press the CLOSE control. The actuator moves
in closing direction and when the configured
torque value is reached the motor is stopped
and the new position limit is memorized.
Move the local selector to OFF
Press YES to confirm
Press YES to continue with the open limit
setting, or press NO and again NO to repeat
the close limit setting procedure. Press NO and
then YES to exit from the stroke limits routine.
Open limit type
Press YES if the open limit type is correct
(torque or position), press NO to change it.
Press YES to confirm.
Open limit by position
Move the local selector to LOCAL. The local
controls become active.
Move the valve to open position
Move the local selector to OFF
Press YES to confirm
Press YES to exit, or press NO then YES to
repeat the close limit setting procedure.
Open limit by torque
Move the local selector to LOCAL. The local
controls become active.
Press the OPEN control. The actuator moves
in opening direction and when the configured
torque value is reached, the motor is stopped
and the new position limit is memorized.
Move the local selector to OFF
Press YES to confirm
Press YES to exit, or press NO then YES to
repeat the close limit setting procedure. If
parameter ‘direction to close’ is changed,
both limits (open and close) must be set.
Before leaving the stroke limits routine the
microprocessor calculates the new value of
the position resolution. If the stroke turns
are less than 2.7, the message ‘error re-try’
appears and the stroke limits procedure must
be repeated.
The above procedure can be done also in
MANUAL mode by the manual override
command (hand pump and the hand operated
spring return valve, hydraulic control group) in
place of the electrical actuator commands.