SignificanceDescription
The status indicator LED can be used to
identify the following status during star-
tup/power on:
• Red, solid: Default when power is
available.
• Red, flashing: Power on self-test
ongoing, operating system is
loading.
• Green, flashing: Application is
loaded and waiting for communic-
ation.
• Green, solid: Module is operation-
al.
If the LED does not turn steady green
after 30-60 sec, the status LED can be
used to identify the following issues:
• No color: Power to the robot signal
exchange proxy is missing.
• Red, solid: Internal error.
• Red, flashing: Firmware error or
self-test failure.
• Green, flashing: Communication
error to another module.
Status LED (bi-colored green/red) for the
robot signal exchange proxy.
Note
The status LED light stays on for a long
time after power to the controller is gone.
This is due to the capacitors in the robot
signal exchange proxy.
MS
Automatic Stop/General Stop LED can
be used to identify the following status:
• No color (not lit): Automatic
Stop/General Stop input loop is
open.
• Green, solid: Automatic
Stop/General Stop input loop is
closed.
Automatic Stop/General Stop LEDs
(green)
AS1/GS1：Automatic Stop/General Stop
LED channel 1
AS2/GS2：Automatic Stop/General Stop
LED channel 2
AS1/GS1
&
AS2/GS2
External emergency stop LED can be
used to identify the following status:
• No color (not lit): External emer-
gency stop input loop is open.
• Green, solid: External emergency
stop input loop is closed.
External emergency stop LEDs (green)
ES1：External emergency stop LED
channel 1
ES2：External emergency stop LED
channel 2
ES1 &
ES2
Emergency stop output LED can be used
to identify the following status:
• No color (not lit): Emergency stop
output is in State 0 (0V) status.
• Green, solid: Emergency stop
output is in State 1 (24V) status.
Emergency stop output LEDs (green)
ES1：Emergency stop output LED chan-
nel 1
ES2：Emergency stop output LED chan-
nel 2
ES-
OUT1
& ES-
OUT2
Motors_ON LED can be used to identify
the following status:
• No color: Motors_ON function is
off.
• White, solid: Motors_ON function
is on.
• White, flashing: safety loop is
open, for example after an emer-
gency stop.
Motors_ON LED (white)MON
Continues on next page
406 Product manual - OmniCore V250XT
3HAC073447-001 Revision: B
© Copyright 2020-2022 ABB. All rights reserved.
7 Troubleshooting
7.3.11 Troubleshooting the robot signal exchange proxy
Continued
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