ABB AC500-eCo V3 - Page 72

LED State Color LED = ON LED = OFF LED flashing
ERR Error indica-
tion
Red An error
occurred
No errors or
only warnings
encountered
(E4 errors).
The LED
behavior for
the error
classes 2 to 4
is configu-
rable.
Fast flashing
(4 Hz) dis-
plays together
with the RUN
LED a cur-
rently running
firmware-
upgrade or
writing data to
the Flash-
EPROM. Slow
flashing (1
Hz) alone dis-
plays shut-
down of
Request To
Send.
Medium
flashing (2
Hz) alone dis-
plays at start
of PLC if
reboot after
watchdog.
MOD1 Mode 1 indi-
cation
Yellow Processor
module is in
mode 1 state
Processor
module is not
in mode 1
state
-
RUN RUN/STOP
state
Green Processor
module is in
state RUN
Processor
module is in
state STOP
Fast flashing
(4 Hz):
The processor
module is
reading/
writing data
from/to the
memory card.
If the ERR-
LED is also
flashing, data
is being
written to the
Flash-
EPROM.
Device specifications
Processor modules > PM50xx
2021/06/293ADR010635, 2, en_US72