Table of Contents
Advertisement
Parameters
4 .1 Scanning the parameters
During operation, the 7-segment display shows the pro-
gram status.
The individual parameters of the PFA can be called up
on the display by repeatedly pressing the Reset/Infor-
mation button (for 2 seconds).
In the event of a fault, the PFA halts the program run,
the display blinks and it then displays the cause of the
fault in coded form.
The PFA indicates "––" when the mains switch has been
switched off. This signals standby mode. The bus inter-
face is still operational to maintain the function of the
communication system.
4 .2 Changing parameters
The PFA is protected by a password to prevent un-
authorized changes to the parameter settings. After
entering the password, the parameter settings can be
modified. Be aware of possible effects on the safe func-
tioning of the system. The factory default password is
1234.
PFA, BGT · Edition 03.11l
4 .3 Manual operation
The PFA can be started in manual mode for burner ad-
justment or for fault-finding.
When switching on, press the Reset/Information but-
ton until the unit reverts to manual mode. Two dots
blink on the display. In this operating mode, the burner
control unit operates independently of the status of the
bus and the inputs (apart from the pre-purge input and
the safety interlocks).
In the factory default setting, manual mode is limited
to 5 minutes (parameter 34 = 1). During this time, the
burner can be adjusted, for example. If parameter 34 is
set to 0, the time limitation will be removed. Emergency
operation is now possible, for example in the event of
a lengthy bus fault. (In the event of a bus fault, P will
blink on the display).
Using the opto-adapter and the BCSoft software (see
page 24 (Opto-adapter and BCSoft)), the operating
mode parameters for manual mode can be changed.
On parameterization, ensure that the program se-
quence matches the application. Select the parameters
so that the burner can be operated as intended in all
operating phases.
▼
18
Advertisement
Table of Contents
