5 Initial setup
5.1 Initialization procedure
Initialization sets automatically the switch points for
the position feedback of the actuator (see fig. 5.2)
Additionally, initialization 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 is a configuration issue.
This process is done automatically, by the module,
however, the user must start it and the unit must be
wired according chapter 4.
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 §5.2).
2. Initialization using a bus command (see
Reference manual QC54, DOC.RM.QC54.E)
5.2 Initialization using local buttons
1 Press and confirm press the “Status/Auto-Initial-
ization” button
2 Status LED will blink.
3 Actuator will cycle 2 or 3 times.
4 At the end of the routine the Status LED switches
to constant on, meaning the initialization was
successful.
Remark:
- If the button board does not work, see §5.3.1.
- If the Status LED is flashing, the auto initializa-
tion routine has failed, see §5.3.2.
- If the read out in the PLC or DCS is reversed or
readjustment of the exact positions is needed,
or
- If it is not possible to finish the auto-initialization
routine, the limit switch points can be set, by the
bus. In both cases, see Reference manual QC54,
DOC.RM.QC54.E. chapter 3.4
WARNING
* During the initialization routine the actuator /
valve combination will cycle several times.
* Before initialization check whether the
actuator and valve have the same “Open” and
“Closed” positions.
* Ensure that the valve stroke is not obstructed
before the initialization routine is started.
Closed
reassignment
button
Fig. 5.1 Reassignment buttons
(located behind front cover of module).
Fig. 5.2 Feedback characteristic
Press and
confirm press
* The default setting of the reassignment buttons is:
enabled when the unit is in “Out of Service”.
Table 5.1 Status LED indications
Status Status LED action
OK (init successful) Constant on
Initializing Blinking (see fig. 5.1)
Init error Flashing (see fig. 5.1)
Init default Flashing (see fig. 5.1)
Identification Flashing for 300 sec.
5.3 Troubleshooting
LED = Flashing
on
off
LED = Blinking
on
off
Status LED
Open
reassignment
button
Time
10°max
10°max
±40°
±40°
“Close”
end
position
“Open”
end position
End stop
offsets
Factory settings
End stop
offsets
Setting after initialization
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