Reference Code Description/Action Perform all actions before exchanging Failing Items Failing Item
AADD Manual power-on failure
An attempt was made to power on the system manually with Secure or
Auto mode selected on the control panel. To correct the problem, select
Manual or Normal mode on the control panel and manually power on the
system again.
USER
CTLPNL
AAEE SPCN - control panel interface error.
An attempt was made to power on the system from the SPCN with Secure
or Manual mode selected on the control panel. To correct the problem,
select Normal or Auto mode and attempt the remote power-on operation
again. If this does not correct the problem, exchange the failing items.
USER
CTLPNL
TWRCARD
BACKPLN
BBBB Battery not working correctly
A problem was detected with the battery supplying power to the
time-of-day clock. The battery is either weak or is not connected securely.
Note: This is not a critical failure. However, if there is a power failure, the
time of day will be lost.
TOD
TWRCARD
Control Panel Failing Items Detail
Use these tables for details on the Failing Item column in the Reference Codes
table(s) above.
Table 3. Control Panel Failing Items for system Models 270, 800, 810, 820, and
825
Failing Item Description Document Description
ANYBUS IOP card bus error Problem Analysis; Symbolic FRU Isolation
CLKCARD Clock card Problem Analysis; Symbolic FRU Isolation
CTLPNL Control Panel Problem Analysis; Symbolic FRU Isolation
TOD Control Panel Battery Problem Analysis; Symbolic FRU Isolation
TWRCARD Card enclosure or backplane Problem Analysis; Symbolic FRU Isolation
USER Operator/User Error Problem Analysis; Symbolic FRU Isolation
Table 4. Control Panel Failing Items for system Models 830, 840, 870, 890, SB2,
and SB3
Failing Item Description Document Description
ANYBUS IOP card bus error Problem Analysis; Symbolic FRU Isolation
BACKPLN Back Plane Unit Problem Analysis; Symbolic FRU Isolation
CLKCARD Clock card Problem Analysis; Symbolic FRU Isolation
CTLPNL Control Panel Problem Analysis; Symbolic FRU Isolation
TOD Control Panel Battery Problem Analysis; Symbolic FRU Isolation
TWRCARD Card enclosure or backplane Problem Analysis; Symbolic FRU Isolation
USER Operator/User Error Problem Analysis; Symbolic FRU Isolation
0000
System Reference Codes 9