34
£
To exit option set mode and return to commission ratio or adjust ratio mode, press the key labelled
FAULT (MODE
) again.
To exit option set mode and return to run mode, press the key labelled
DATA (RUN)
and then
COM
(ENTER)
.
Commission Ratio Mode
Description
Commission ratio mode is used for entering a new profile or changing an existing profile.
Using commission ratio mode, it is possible to step through each setpoint including close, purge and
ignition. Once a setpoint has been entered, it is not possible to go back and modify it again in the
same commissioning session. To do this, adjust ratio mode must be used after all the required set-
points have been entered.
Entering commission ratio mode:
To enter commission ratio mode, turn the burner off. Once the burner has completely shut down,
press the key labelled
COM
and obtain the supplier passcode value using the
UP/DOWN
keys.
Press the key labelled
COM (ENTER)
.
If the entered passcode was correct, servo-motor positions will be seen on display,
COM
will be
flashing, in addition to P0 0. This represents the closed position setpoint.
Using commission ratio mode:
CAUTION: Use extreme care while commissioning the system. While operating in commis-
sioning mode the safety of the system is the sole responsibility of the commissioning engineer.
Incorrect positioning of either fuel or air could cause a hazardous situation to occur. If the
servo-motor positions have been up-loaded, it is essential that the combustion is verified at
each firing position to ensure that a hazardous condition cannot occur and to allow the data
to be stored in the controller.
To adjust the position of a servo-motor, use the scroll keys to point to the servo-motor to be adjusted
and then use the
UP/DOWN
keys to adjust its position. Depending on the profile selected, fuel 1
servo-motor or fuel 2 servo-motor may not be available.
Each setpoint in the profile is referred to with a letter and number (refer to the table below).
NO
NAME COMMENTS
P00
Close
This defines the positions the servo-motors will move to when the burner is off, and must be set to the lowest position
each servo-motor can reach.
P01
Purge
This defines the positions the servo-motor will move to when the burner is purging, and must be set to the highest posi-
tion each servo-motor can reach. Burner select input must be on for PO1 and above.
P02
Ignition
Position during ignition. May be outside the normal firing range.
P03
Low Fire
Low fire setpoint.
.........
...........
PXX
High Fire
High fire setpoint, which is the last setpoint entered (max. P23)
OPTION SET MODE
RUN MODE
DATA
COM
RUN MODE, BURNER OFF
SUPPLIER PASSCODE
COM
COM
