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© Copyright by BIFFI Italia. All rights reserved.
“ICON2000”
instruction and operating manual
Section 618/2 chapt. I
Section 618/2
Close limit by position
• Move the local selector to LOCAL. The local controls can be used.
• Move the valve to closed position (by CLOSE control or by handwheel)
• 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
memorised.
• 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 (by OPEN control or by handwheel)
• 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
memorised.
• 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.
1.2 TORQUE SET-UP
The output torque limits to close or to open may be configured between 40% and 100% of
the nominal torque stated on the actuator nameplate.
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