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FULL MENU
TUNING
Close time Minimum time (Min 0.005) from fully open to closed.
Open time Minimum time (Min 0.05) from closed to fully open.
Deadband Setting deadband. Min. 0.2%.
Expert Advanced settings.
Control See explanations below.
Togglestep Test tool for checking functions. Overlays a square wave on the
set value.
Self test Internal test of processor, potentiometer, etc.
Leakage Air leakage in actuator/tubing can be compensated by settings.
Undo You can read last 20 changes.
P,I,D and K,Ti,Td parameters
If one of the gains is changed, the correspon-
ding value in the other gain set is changed
accordingly.
Min Pulse
The minimum pulse lengths (the “minpul-
ses”) are displayed in the menu, and can be
changed.
Normal values are:
DN1, DN2: 2750 to 4300
UP1, UP2: 3750 to 5220
Reduction of pulses
This function monitors the number of pulses
vs time. In case of an excessive number
of pulses vs. time, an automatic reduction
of pulses is enabled in order to extend the
service life.
This function is enabled as default.
Spring adjust
The spring adjust function compensates the
airflow linearly with the actuator C+ chamber
volume (for a constant position error), so that
low volumes get less flow. This is needed for
linear single-acting actuators, where a low
C+ volume means that the actuator spring is
extended, its force is reduced, and less flow
is needed for stable position changes.