ARI Armaturen ARI-PREMIO Plus EN - Manual (Page 32)

Page 32 0040501004 5010
Operating and installation instructions
Thrust actuator ARI-PREMIO-Plus
5.6.7 Characteristics
Fig. 15
5.6.8 Double control at the 3-point input
The 3-point control signal takes priority over the analogue input signal, e.g. for fail-safe or
anti-freeze protection. If a signal is present at both inputs (double control), the control mode
is interrupted.
5.6.9 Priorities
The actuator is controlled according to the following priorities:
The slide switch for the characteristic sets
three different actuator characteristics that
define the relationship between the input signal
and the valve position.
"Inverse equal-percentage"
"Equal-percentage"
"Linear"
The characteristic correction function allows
you to adjust the effective characteristic of the
actuator as shown in the graphs opposite.
Valve characteristic + actuator characteristic = effective
characteristic
Priority Control
High - Reset
- Initialisation (cancelled by reset)
- Manual: Stop / up / down
- Failure
- Ext. input L-down
- Ext. input L-up
Low - Y-input
NOTE !
Note the minimum increments /
pulses of the motor / actuator
(approx. 0.25 s)!
The resolution is therefore limited,
particularly with the equal-
percentage and inverse equal-
percentage actuator
characteristics.
The most suitable valve
characteristic should ideally be
selected with a linear actuator
characteristic.