Emerson FieldQ Series Product Data Sheet page 41

Product data sheet
1.604.12 Rev. 3 Page 6 of 13
November 2018
Switch point setting
The QC54 control modules are equipped with a button
board that allows you to set or readjust the switch points for
the position feed back.
Press and
confirm press
on
off
on
off
Time
* The default setting of the reassignment buttons is: enabled when the
unit is in "Out of Service".
* "Open" and "Closed" LED are disabled.
Fig. 7. Button board
Button board functions:
Initialization button: Start Auto-Initialization procedure
Re-adjustment of the "Closed" switch point
Close button:
Set to factory settings
Re-adjustment of the "Closed" switch point
Open button:
Set to factory settings
End stop
offsets
±40°
±40°
Factory settings
Fig. 8. Switch point setting
FieldQ
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Closed reassignment button
Status LED
Open reassignment button
LED = Flashing
LED = Blinking
10°
max
end position
"Close"
End stop offsets
end
10°
max
position
"Open"
Setting after initialization
Auto-Initialization
Initialization sets automatically the switch points for the
position feedback of the actuator and checks if the actuator
and control module configuration match. This procedure
will detect the action type (Fail-Open, Fail-Close or Fail in
last position) and generate an alert if there are configuration
issues.
This process is done automatically, by the module, however,
the user must start it and the unit must be wired and
powered.
Digital communication is not required but power supply is
necessary (9V to 32V DC). The initialization process can be
started in one of two ways:
1. Initialization using the local buttons (see fig. 7).
2. Initialization using a bus command (see Reference
manual QC54, DOC.RM.QC54.E)
Indication LED's
Three indication LED's for "Status", "Open" and "Closed"
position are available. The status LED indicates:
- Initialization procedure running (blinking),
- Successful initialization procedure (LED is on) or
- No or failed initialization (flashing)
Recognize Function
An additional function of the Status LED is the recognize
function. To recognzie a particular unit in the plant,
the "Recognizing LED" function can be activated in the
transducer block. When this function is activated, the Status
LED will blink for 300 seconds (5 minutes).
Changing Switch Point Setting
Readjustment of switch points
When switch point re-adjustment is required but it is not
allowed that the actuator/valve unit cycles, the new switch
point can be set by pressing the corresponding "Open" or
"Closed" button.
Factory settings
Pressing both the Open and Close reassignment buttons,
while powering up, will set the module back to its factory
settings.
FieldQ