Status Display And Error Indication On The Ac500 Cpu - ABB AC500 Introduction Manual

Status display and error indication on the AC500 CPU

All AC500 CPUs have LEDs and a LC Display for indicating operating statuses and errors. The following
drawing shows the front face of a AC500 CPU.
SYS
BATT
I/O-Bus
PWR RUN
RUN
VAL
WARNING!
Use of
incorrect
ESC
battery may
cause fire or
OK
explosion.
Figure: Front face of a AC500 CPU
The display's background lighting is normally switched off. The status of the CPU is shown as plain text
"run" or "Stop", which reflects the operating status of the CPU program.
By pressing one of the dialog keys "RUN, DIAG, CFG or VAL", the background lighting is turned ON
and the desired function is performed.
In case of a function error, the display background lighting is also switched on and an error code is
displayed.
____________________________________________________________________________________________________________
G1
Introduction to AC500
PM581
ETH
FBP
COM1
COM2
ERR
DIAG
CFG
INSERT
MC
PUSH
502
CPU
24 V DC 10 W
1-52
The CPU statuses are displayed on the CPU front
face with 3 LEDs:
– PWR
– RUN
– ERR
– and by means of a background-lighted display
The display contains the following indications:
– small black squares indications acting as a
LED status for the device written beneath
– small black arrows used for indication by
pointing the selected device to be con-
figured or read
– 6 x 7-segment displays for "plain text" or
error codes display
AC500 / Issued: 07.2006