Honeywell BCU 465 - BCU Functions and Components

BCU 460, BCU 465 · Edition 11.19 20
Function
3 Function
3.1 Part designations
2
6
3
1
7
8
9
4
10
5
1
LED display for program status and fault messages
To display the program status or fault message and, in conjunction
with the Reset/Information button, to display the flame signal and the
fault history or to view and set device parameters.
2
On/Off button
To switch the control unit on or off
3
Reset/Information button
To reset the control unit to its starting position in the event of a fault.
System faults (internal errors) can only be acknowledged using this
button.
4
Connection for opto-adapter
5
BCU type label
6
Power module, replaceable
7
Power module type label
8
Parameter chip card (PCC), replaceable
9
Bus module, replaceable
10
M5 screw terminal for burner ground
There are two control keys for the control unit:
OK
ON/OFF
Use the ON/OFF key to switch the control unit on or off.
Reset/Information
The control unit is reset to its starting position in the event of a fault
using the Reset/Information button.
During operation, the LED display1 shows the program
status. The flame signal intensity, the fault history and
the parameters can be called up on the display by re-
peatedly pressing the Reset/Information button (for
1s). The parameter display is ended 60seconds after
the last time the button is pressed or by switching off
theBCU. When the BCU is switched off,
– –
is displayed.
The parameters cannot be scanned when the BCU is
switched off or when a fault/warning is displayed.
Display Information
F1
Flame signal intensity:
Burner 1
H0
to
H9
Last event message
to
tenth to last event message
001
to
999
Parameter 001
to
parameter 999