ABB AC500 - How an Error Message Is Built-Up in the Display; Example of an Error Display for an Exhausted Battery

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G1 Introduction to AC500 1-55 AC500 / Issued: 07.2006
How an error message is built-up in the display
An error always consists of an Error Class (E1 to E4, see the previous table) and a number (0 to 63)
which indicates the identifier of the error for direct error recognition. Moreover, there are further four
detailed error codes from d1 to d4 which define the error in detail:
E1...E4 = 00...63 (error identifier) e.g. wrong value, checksum error, short-circuit, exhausted or
missing battery, etc. which is directly displayed in the LCD
-> d1 = 000...015 indicates the component which has sent the error (coupler, CPU,
COM1, FBP, IO-Bus, etc.)
d2 = 000...255 defines the faulty device within the component
d3 = 000...030 defines the part of the module with an error (slot)
d4 = 000...031 defines the channel within the module
Example of an error display for an exhausted battery
To display the complete error codes, please follow the procedure described below:
ETH
FBP
COM1
COM2
SYS
BATT
I/O-Bus
ETH
FBP
COM1
COM2
SYS
BATT
I/O-Bus
ETH
FBP
COM1
COM2
SYS
BATT
I/O-Bus
The CPU is running. The display only shows
the RUN status and the background lighting is
OFF.
OK
ESC
or
When an error occurs, the red ERR LED goes
on. An error message is output after pressing
the DIAG key and, for example, the screen
shown to the right displays ”E4=008”. Accor-
ding to the error level, E1 to E4 can be dis-
played.
In this example, ”E4=008” is a warning (E4)
and ”008” means ”Empty/Missing” .
By pressing on the DIAG button, the LCD
background lighting is turned ON, the error
codes can be displayed to achieve more (dea-
per) diagnostic. The display shows ”d1=009”
(detail level 1) and ”009” indicates that the
CPU has sent the error.
DIAG
By pressing DIAG one more time, the display
shows ”d2=022” (detail level 2) and ”022” indi-
cates that the device type = battery.
DIAG
By pressing DIAG one more time, the display
shows ”d3=031” (detail level 3) and ”031”
means ”no module type” (= device itself).
DIAG
By pressing DIAG one more time, the display
shows ”d4=031” (detail level 4) and ”031”
means ”no channel” (= device itself).
DIAG
By pressing OK, the error is acknowledged
and the display returns to the normal state.
ESC returns to the normal state without ack-
nowledging the error!
ETH
FBP
COM1
COM2
SYS
BATT
I/O-Bus
ETH
FBP
COM1
COM2
SYS
BATT
I/O-Bus
ETH
FBP
COM1
COM2
SYS
BATT
I/O-Bus
ETH
FBP
COM1
COM2
SYS
BATT
I/O-Bus
Figure: Example of an error display for an exhausted battery
Please refer to the Error Code list for further information. See the AC500 user manual.