IM-P343-35 CTLS Issue 5
61
SP500 Electropneumatic Smart Positioner
9.9 RETRN - return to SP500 MENU in main menu
Fig. 71
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Programming notes
Press and hold key for 3 seconds. The display will count down the 3 seconds. This provides the facility
to return to SP500 MENU with the option of staying in automatic operation (AUTO) or venting the actuator
(VENT). Use and keys to toggle selection. Press key to select and return to SP500 MENU.
Commissioning notes
To alter any SET or TUNE values, go into manual control (MCTL) it is then necessary to return to the
SP500 MENU.
Any values altered will be recorded in the temporary memory and activated immediately. To store in
the permanent memory it will be necessary to advance to RUN and press and hold key for 3 seconds.
The display will count down the 3 seconds.
To return to the main menu but stay in automatic control select AUTO. The valve will continue in automatic
operation and respond to changes in input control signal. With the exception of CALIB and MCTL
functions, main menu and subroutines will timeout after 5 minutes if no key is pressed and revert to
displaying % TRAVEL in automatic control mode. Any temporary changes made will not be recorded
in the permanent memory.
To return to main menu in a fail-safe position select VENT. The actuator will be fully vented of air and
the valve will return to its fail-safe position.
To return to manual control (MCTL) advance to MANOP in the main menu and advance to manual
control (MCTL). The valve can now be manually controlled using the and keys to inflate or deflate
the actuator. The desired % TRAVEL will be displayed.
To return to automatic control advance to RUN and press
key for 3 seconds. The display will count
down the 3 seconds. The valve will revert to automatic control and position itself relative to the input
control signal. Any SET or TUNE values altered will be recorded in the permanent memory.
AUTO OPER ATION
(% TRAVEL)
Return to
SP500 menu
(RETRN AUTO/
RETRN VENT)
Return to SP500 MENU
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