56
FAULT/ALARM HANDLING
Each Burner Control reports to the OI display when a safety
lockout or an Alert occurs.
Safety lockouts are indicated on each configuration page as an
alarm bell symbol. At the status page (for S7999B), the History
button turns red. If the S7999B is displaying the system status
icons, the control in alarm will turn red.
The lockout history can be displayed by pressing on the History
button. The state information about each lockout is displayed
along with the date/time that the lockout occurred (refer to Table
21). Current date/time stamp is a display setup feature.
Note: In the event of a power interruption, the date/time must be
reset. The OI Display does NOT have a backup means.
DATA
COMMENT
Lockout time
Set by display
Fault Code
Unique code defining which
lockout occurred.
Annunciator first out
First interlock in limit string
results in a shutdown.
Description
Fault description
Burner Lockout/Hold
Source/reason for lockout/
hold
Burner control state
Sequence time
Burner control state timer at
time of fault
Cycle
Burner control cycle
Run Hours
Burner control hours
I/O
All digital I/O status at time of
fault
Annunciator 1-8 states
All annunciator I/O status at
time of fault
Fault data
Fault dependent data
An alert log can be displayed for each control by pressing the Alert
button on the bottom of the history status page. A description of
the alert is displayed along with the time when the alert occurred
(refer to Table 22).
DATA
COMMENT
Alert Line
Set by display
Alert Code
Unique Code defining which
fault occured.
Description
Alert description
HISTORY BUTTON
The History button on the Home page serves not only as a
button, but also displays Burner Control lockouts, holds, and
alerts as they occur. The History button can be selected at any
time, regardless of which type of information is displayed, to view
history information. Pressing the History button displays a dialog
box (see Figure 64 on Page 57) that allows the user to select
the type of history to view. The user can also silence an audible
alarm generated by the control during a lockout or alert by alarm
condition.
Press the Yes button to confirm each safety parameter block. If
the No button is selected, the safety parameter block remains
unconfirmed and the Configuration menu page is displayed. The
control remains in an unconfigured state in this case.
After all safety parameter blocks have been confirmed, the
installer is asked to press and hold the Reset button on the
Burner Control to complete the safety verification session (see
Figure 63).
When the Reset button is pressed and held for 3 seconds the
confirmed safety parameters are saved in the control. The
above Reset dialog box automatically closes when this step is
completed.
If this step is not performed, the control remains in a safety lockout
state until the installer resolves the unverified safety parameters.
FIGURE 62. SAFETY PARAMETER CONFIRMATION
FIGURE 63. SAFETY PARAMETER RESET
TABLE 21. BURNER CONTROL LOCKOUT HISTORY
TABLE 22. BURNER CONTROL ALERT LOG
