December 2019
69
Installation, Operation and Maintenance Manual
VCIOM-08500-EN
Section 9: Set-Up Routines
Set-Up Routines
9.1.13.4
Torque Bypass (%)
Since a momentary high torque may be required to unseat certain valves, the torque
bypass routine disables the torque alarm when an open or close command is received and
the actuator is fully open or closed. The torque bypass is expressed as a % of position and
is configurable from 0% to 20%. For example: if a 10% bypass value is set, we may have:
•
bypass active in Opening: from 0% to 10%
•
bypass active in Closing: from 100% to 90%
To disable torque bypass, 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 the "Actuator Setup" menu, press
NO to scroll through 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 Bypass".
Press YES if the setting is correct; otherwise, press NO to change. Press YES when
the value is correct.
9.1.13.5
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 greater than the “valve
jammed time,” but the variation in valve position is smaller than 0.5%. The motor
is stopped, the command is cleared and a “valve jammed” alarm indication is
generated.
2.
The valve is moving, but during valve travel the variation in valve position
is smaller than 0.5% of the time equal to “valve jammed time”. The motor
is stopped, the command is cleared and a “mid-travel alarm” indication is
generated.
The valve jammed time is expressed in seconds and can be configured from 0 to 100
seconds. Configure “0” to disable 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 the "Actuator Setup" menu, press
NO to scroll through 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; otherwise, press NO to change. Press YES when
the value is correct.
