Emerson Bettis Q Series Reference Manual page 15

Reference manual F
DOC.RM.BQC54.E Rev: 1
February, 2016
3.4.4 If the "Open" or "Closed" feedback is
lost.
1 Check if the actuator/valve unit is working correctly.
2 If it is safe to cycle the actuator, perform the initial-
ization procedure (see §3.2).
3 If it is not safe to cycle the actuator, perform the fol-
lowing procedure:
1 Go to Configure/Manual Setup/Switch Points/
Change Switch Points.
2 In case the "Open" position is lost:
Set sub parameter OPEN_END_POSITION of
parameter CFG_SWITCH_POINTS to:
"set to current position".
3 In case the "Closed" position is lost:
Set sub parameter CLOSE_END_POSITION of
parameter CFG_SWITCH_POINTS to:
"set to current position".
Note:
- If the problem is persistent, increase the endstop
offset (see 4.2.3.2).
3.4.5 If the initialization (Calibration) can
not be started via the push buttons.
1 Ensure the device is "Out Of Service".
2 Ensure that the buttons are enabled in the trans-
ducer block (parameter BUTTONBOARD_EN-
ABLE, index 34).
Remark:
Setting the device to default will always enable the
push buttons as long as the device is in "Out Of
Service" (see §3.4.1).
3 Ensure that the unit is not in Shutdown. See Trans-
ducer block parameter SHUTDOWN_STATUS,
index 32. If the device is in Shutdown see 3.4.6
Fieldbus Control module
OUNDATION
3.4.6 If the device is in Shutdown
When the device is in Shutdown, an internal failure
has occurred.
If the internal failure is re-solved, the actuator shut-
down status will be automatically reset.
If you want to capture the internal failure of the de-
vice, you can set the device to Manual-Recovery as
described in 4.2.3.3 (in Manual-Recovery).
1 Normally the SHUTDOWN_RESET parameter is
inactive. For reseting the shutdown status param-
eter SHUTDOWN_RESET must be set to "Reset".
2 When this reset is completed succesfully, the
SHUTDOWN_STATUS parameter will be
Bettis Q-Series operational and SHUTDOWN_RE-
SET parameter will return to inactive.
If the problem persists, please contact your local
Bettis Q-Series representative.
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