IM-P343-29 CH Issue 5 9
3.5 Programmable functions
Autostroke Automatic commissioning routine
Valve type 2-port or 3-port
% travel
Selectable 0 to 100% or 100% to 0%
depending on valve / actuator configuration
Control action Direct or reverse action (4 - 20 or 20 - 4 mA)
Travel limits
Setting of minimum and maximum travel limits
(valve open and valve close % travel)
Displayed travel %
0 - 100% displayed over mechanical travel limits or
MIN-T / MAX-T adjusted settings
Signal span 4 - 20 mA or split ranged (minimum span 4 mA)
Dead-band Positional accuracy (minimum 0.2% to max. 10% of valve travel)
Tight shut-off Fully vent or inflate at preset input signals
Characteristic Linear, = % or fast opening input signal to valve travel relationship
Travel time Slows down valve opening or closing
Travel switches Software travel switch setting (range 0 - 100%)
Reset Resets all programmed values to default settings
Calibrate Centering
Input signal Visualisation of input mA signal
Auto operation / vent
Option of automatic operation or
vent (actuator) whilst reprogramming
Data logging
Diagnostic record of total number of valve strokes
and completed hours run time
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