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BIFFI FAIL SAFE ELECTRIC ACTUATORS, MODEL EFS2000V4
InstructIon and operatIng Manual
The contacts may be configured to make or
break on condition.
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 Output relays.
• Press YES to select DEFAULT #1, or press
NO to change
• Press YES to select DEFAULT #2, or press
NO to configure the output relays
DEFAULT #1
Monitor relay
• Main voltage failure
• Speed sensor failure
• Lost phase
• Configuration error
• Local/off selected
• HW error
• Local stop pressed
• Motor over-temperature
• Manual operation
• Over-torque
• Internal temperature alarm
• Jammed valve
• K1 contactor failure
• Low a lithium battery (if present)
• K2 contactor failure
• Mid-travel alarm
• Position sensor failure
Auxiliary relays
AS1: open limit; make
AS2: close limit; make
AS3: position >90%; make
AS4: position <5%; make
AS5: motor running; make
AS6: overtorque; make
AS7: ESD active; make
AS8: motor over-temperature
Auxiliary relays
AS1: open limit; break
AS2: close limit; break
AS3: position >90%; break
AS4: position <5%; break
AS5: motor running; make
AS6: remote selected; make
AS7: warning; make
AS8: local selected
DEFAULT # 2
Monitor relay
• Main voltage failure
• Speed sensor failure
• Lost phase
Configure output relays
• Press YES to change the monitor relay or
NOto change auxiliary relays AS1, 2, 3, 4, 5,
6, 7, 8.
Monitor relay
• Press YES or NO to enable or disable the
following situations from the conditions
which de-energize the monitor relay: motor
over-temperature, over-torque, jammed
valve, manual override, ESD-EFS, low lithium
battery (if present), local STOP pressed,
LOCAL/OFF selected.
Auxiliary relays AS1, 2, 3, 4, 5, 6, 7 and 8
• Press NO to answer prompt ‘MONITOR
RELAY change?’.
• Press YES to change AS1, press NO to select
the other relays.
• Press YES if the condition associated to AS1
relay is correct, press NO to scroll through
the list of conditions and press YES to set.
• Press YES or NO to either confirm or change
the type of contact when the condition occurs
(break, make). Since relay AS8 is change-
over, this option is not available.
• Press NO to pass to AS2 and then repeat the
procedure for the other relays.
• Press NO to exit.
• Configuration error
• Local/off selected
• HW error
• Local stop pressed
• Motor over-temperature
• Manual operation
• Over-torque
• Internal temperature alarm
• Jammed valve
• K1 contactor failure
• Low lithium battery (if present)
• K2 contactor failure
• Mid-travel alarm
• Position sensor failure