TM
Page 13
Reference manual Foundation Fieldbus Control module
DOC.RM.QC34.E Rev: A
October, 2006
3.3.1 Check functioning
Before function test:
- Check or set “Resource Block” to “Auto”.
- The unit must be connected to a host system and
power must be connected (see chapter 3).
- The unit must be successfully initialized (Status of
Transducer Block AUTO_INITIALIZATION must be
successful.
1 Set the Transducer Block to “Out of Service”.
2 Set the Function Block to “Out of Service”.
3 Set channel number of the DO Function Block
block to 1
4 Download the settings to the system.
4 Set the Function Block to the “Auto” mode.
6 Set parameter "SP_D" to “ open”.
7 Actuator moves to "Open" position.
8 Set parameter "SP_D" to “ closed”.
9 Actuator moves to "Closed" position.
10Set the Transducer Block to “Auto”.
3.3.2 Recognizing LED
To recognize a particular FieldQ actuator in the plant
“Recognizing LED” function can be activated in the
Transducer Block . When this function is activated,
the status LED will blink for 5 minutes. To start the
LED:
1 Set “FLASH_LED”-parameter to start.
2 Status LED on the unit will blink for 5 minutes.
3 After 5 minutes the “FLASH_LED”-parameter will
change back to finished.
3.2.2 Initialization using Bus Command
1 Set the Transducer Block to “Out of Service”.
2 Set sub-parameter “AUTO_INIT_COMMAND” of
parameter AUTO_INITIALIZATION to start auto
init.
3 When the initialization is running,
INITIALIZATION_STATUS will indicate running and
the Status LED will blink.
4 Actuator will cycle two or three times.
5 When the initialization is successful,
INITIALIZATION_STATUS will indicate successful
and the Status LED is on.
6 Set the Transducer Block to “Auto”.
Remark:
- If the auto initialization has failed, the status LED
on the module is flashing and the status of param-
eter AUTO_INITIALIZATION will indicate a posible
cause, see §3.4.2
- After initializing check if the feedback matches the
actual valve position. If the position feedback in the
PLC or DCS is reversed, see §3.4.3.
- If readjustment of the positions is needed, without
cycling the actuator, see §3.4.4
- If it is not posible to finish the auto-initialization
routine, the switch points can be set, according
§3.4.3
3.3 Function block assignments
1 Set the required Function Block(s) to “Out of
Service”.
2 Set the required channel number(s). The following
are the basic channel assignments that should be
used when using the FF QC34 Control Module:
3 Assign Channels and signals to the appropriate
function blocks (see table 3.3)
4 Download the Function Block(s) to the “system”.
5 Set the Function Block(s) to “Auto”.
Table 3.3 Function block assignments
Function Signal Channel
block
DO Command to the actuator to 1
open or close
DI Feedback from the actuator 2
indicating open, close, opening or
closing
Switch 2 (Open) state from the 3
actuator indicate active or inactive
Switch 1 (Closed) state from the 4
actuator indicate active or inactive
AI Temperature of the electronics 5
(default in°C).
