Ac500 Cpu Module Leds - ABB AC500 Introduction Manual

The meanings of the LEDs and the LCD display are listed in the following table:

AC500 CPU module LEDs

LED Status
PWR 24 V DC
power supply
is provided
RUN activity status
ERR error indication
Working
activity of the
beneath
described
device (e.g.
top right of the
display ETH
communication
line).
or Indicates the
selected
device to be
read or
configured.
Acts as a
cursor moving
with the arrow
keys
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G1
Introduction to AC500
Color LED = ON
green voltage is present
green CPU is in RUN
mode
red An error has
occurred. The
error type and
code is displayed
in the LC Display.
The error codes
can be shown by
means of the
DIAG and OK
keys.
black Device is present
and OK (e.g. the
battery is present
and OK).
black Points out the
selected device
of which the
name is written
beneath (e.g. top
right of the
display ETH
communication
line).
1-53
LED = OFF LED flashes
voltage is --
missing
CPU is in If flashes fast (4 Hz):
STOP mode The CPU is
reading/writing the SD
card, indicates together
with the blinking error
LED that the CPU is
writing the internal Flash
EEPROM.
If flashes slow (1 Hz):
The firmware update
from the SD card is
finished without errors.
No errors are Flashing fast (4 Hz):
encountered or Indicates together with
only warnings RUN a firmware update
(E4 errors). process and a Flash
This is EEPROM write.
configurable
(by error 2 - 4,
the LED
behaviour is
configurable.
No activity or Flashing according to
device not the device activity, e.g.
present when data exchange on
ETH, COM1, etc...
communication lines.
No device --
selected
AC500 / Issued: 07.2006