ARI Armaturen ARI-PREMIO Plus EN - Manual (Page 29)

0040501004 5010 Page 29
Operating and installation instructions
Thrust actuator ARI-PREMIO-Plus
Force off
The Force switch specifies the direction in which the actuator
is switched off by the thrust in the final position.
- Switch up: Retracting spindle
- Mid-position: Both directions
- Switch down: Extending spindle
The tight closing function is active in the set final position(s) to
ensure that the valve is closed with the nominal actuator force.
The function is activated within a capture range equivalent to
4% of the travel upstream of the Force switch, causing the
actuator to be moved into the "Thrust off" position. It does not
leave this position until the analogue control signal exceeds
the 4% threshold again.
If the Force switch for a final position is not activated by the
parameter switch, the actuator is switched off in the final
position according to the travel.
Anti-block retraction
program
Anti-Block On:
If the valve stem or plug is blocked (i.e. if the thrust is reached
before the final position), an intelligent retraction algorithm
attempts to remove the blockage. The plug is raised a
maximum of four times (the lift is increased with each new
attempt) until the blockage is no longer present.
If the blockage cannot be removed, the orange LED is set.
Anti-Block Off:
The retraction algorithm is deactivated.
The orange LED is set if a blockage occurs.
Economy – wear
reduction program
The wear on the valve and actuator mechanism can be
reduced to a minimum by implementing various protective
measures to extend the lifetime.
Economy On:
This operating mode affords maximum protection for the valve
and actuator mechanism as follows:
- Adaptive hysteresis band (refer to 5.6.3)
- Temperature management on (refer to 5.6.4)
- Cyclic operation after a reset or when the power is returned
after a power failure (refer to 5.6.2)
Economy Off:
The actuator must respond as quickly as possible:
- Fixed hysteresis band
- Temperature management off
- Yin control signal starts immediately when the power is
returned
Switch Meaning Description / explanation