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© Copyright by BIFFI Italia. All rights reserved.
“ICON2000”
instruction and operating manual
Section 618/2 chapt. I
Section 618/2
1.13.5 TORQUE BY-PASS (%)
Since a high torque may be required to unseat certain valves, the torque by-pass routine
masks the torque alarm when an open or close command is received and the actuator is
fully open or closed. The torque by-pass is expressed in % of position and is configurable
from 0% to 20%. For example, if a 10% by-pass value is set, we may have:
- by-pass active in Opening: from 0% to 10%
- by-pass active in Closing: from 100% to 90%
To exclude torque by-pass configure 0%.
Configuration procedure:
• Move the local selector to OFF and then simultaneously press OPEN and STOP. 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 the list of available routines and
then press YES to select Miscellaneous.
• Press No to scroll the list of routines and press YES to select torque by pass. Press YES if
the setting is correct, press NO to change. Press YES when the value is correct.
1.13.6 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 greater 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. 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 the list of available routines and then
press YES to select Miscellaneous.
• Press No to scroll 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.
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