IM-P343-35 CTLS Issue 5
59
SP500 Electropneumatic Smart Positioner
9.7.1 Automatic operation - % travel
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Programming notes
During normal automatic operation the % valve travel will be continuously displayed together with the switch
status of the software travel switches (if fitted). Additionally, a will be displayed indicating that the valve
is operating satisfactorily. At any time during automatic operation the mA input signal can be displayed by
pressing key.
To return to SP500 MENU press and hold key for 3 seconds. The display will count down the 3 seconds.
You will advance to RETRN with the option of AUTO (automatic operation) or VENT (venting air from actuator).
Use and keys to select the desired option. Press key to accept the displayed option and return to
SP500 MENU.
Commissioning notes
During normal operation the % valve travel will be continually displayed. A indicates that the valve
is performing satisfactorily. Causes of fluctuations in valve movement can be related to input signal.
Press key to view actual mA input signal.
9.7.2 Input signal - mA signal display
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Programming notes
The mA input signal will be displayed. Press
key to return to displaying % travel. The programme will
automatically return to displaying % travel after 5 minutes.
It is possible to advance to view valve diagnostics data STRVL (total valve strokes) and RTIME (total run time).
To advance to STRVL press and hold key for 3 seconds. The display will count the 3 seconds.
Commissioning notes
This function is of assistance to visualise and check input signal relative to valve position and to
investigate causes of fluctuations in valve movement. The mA input signal will be displayed for 5 minutes.
Press key to return to displaying % travel. The programme will automatically return to displaying %
travel after 5 minutes.
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