Honeywell RM7838B Series, Руководство пользователя, Страница: 45 / 56

45 65-0120—1
TABLE 9—SEQUENCE AND STATUS HOLD MESSAGES (Continued)
NOTE: Normal sequences are in BOLD type, while abnormal sequences are not in bold type.
RM7838B
TROUBLESHOOTING
Sequence Message
BURNER OFF: T6
(Burner Switch) The VFD indicates the Burner Switch is not closed. The burner sequence will not
advance to PURGE until the Burner Switch closes.
STANDBY The VFD indicates the burner status, STANDBY, and the operating control is not
closed. The burner sequence will not advance to PURGE until the operating
control closes.
STANDBY HOLD: T6
(EA Hold Message) The VFD indicates the burner status, STANDBY, and a limit is not closed. The
burner sequence will not advance to PURGE until one or all limits close
downstream from the operating control.
STANDBY HOLD: T6
(Circuit Fault) The VFD indicates the burner status, STANDBY, and the control input is not
closed. The burner sequence will not advance to PURGE until the control input
closes.
TABLE 10—ACCESSING HISTORICAL AND DIAGNOSTIC SELECTABLE MESSAGES.
Step Operation Press Display Comments
1 Press scroll key (
◊
) STANDBY Use the up/down scroll keys to access
to access Diagnostic (
◊
)Diagnostic Info > the selectable message. The second
Information. line will display Diagnostic Information.
2 Press change level (
↔
) STANDBY Use the change level key to access the
key to Access Diag- (
◊
)Diagnostic Info> Diagnostic Information.
nostic Information.
3 Continue display (
◊
) STANDBY DI Push the (
◊
) scroll key to scroll to the
of Diagnostic (
◊
)Device RM7838B< next Diagnostic
Information. message.
4 Continue through remaining diagnostic information display following step 3 as required.
5 Press change level (
↔
) STANDBY Another display can be selected or
key to return to the (
◊
)Diagnostic Info> discontinue accessing Diagnostic
first level of Diag- Information review.
nostic Information
data prompt or to other
selectable messages.
NOTE: Historical Files may be selected similarly.