Technical information

IM-P343-29 CH Issue 5 39
9.5.1 VALVE - valve type
Programming notes
Provides selection between 2-port and 3-port valves. Default is 2-port valve.
Default values for travel limit settings (
MIN-T and MAX-T) and early vent /
inflate settings (S-MIN and S-MAX) will depend on the valve type (2-port or
3-port) and control action (direct or reverse) as follows:
Valve type
2-port 3-port
Display Direct Reverse Direct Reverse
MIN-T 0% 0% 0% 0%
MAX-T 95% 95% 100 100%
S-MIN 0.1% OFF 0.1% 0.1%
S-MAX OFF 0.1% 0.1% 0.1%
Use and keys to select type. Press key to accept displayed type and
advance to actuator type (ACT).
Commissioning notes
Selection of 2-port or 3-port valves will automatically alter the maximum travel default
value (
MAX-T) to 95% for 2-port and 100% for 3-port valves. Advance to MAX-T to change
these values if required.
9.5.2 ACT - actuator type
Programming notes
ACT selection is useful to avoid hunting using small actuators like PN5100, PN6100,
PN9100 or PN9200 series. Selection is 'ON' or 'OFF'. Default value is 'OFF'.
Use the and keys to toggle selection. Press key to accept displayed value and
advance to Control action (CTRLA).
Selection options:
'OFF' Any pneumatic actuator except when hunting is evident.
'ON' Any small actuator like PN5100, PN6100, PN9100 or PN9200.
Commissioning notes
Selection of 'ON' automatically adjusts certain programming values to obtain optimum
performance for small actuator like type PN5100, PN6100, PN9100 or PN9200 series.
ACT doesn’t modify parameters set by other functions of the programming menu.
When 'ACT' is ON there could be a light speed slow down approaching to the target
position.
This behaviour doesn’ t influence SP200 performance and guarantee a positioning without
hunting.
If a residual hunting or oscillation is present it is possible to operate changing Deadband
(dBAND), Valve opening time (T-UP), Valve closing time (T-dWN).
If 'ACT' is 'OFF' standard control values found during Autostroke will be used.