Omron TJ2-MC02 Hardware Reference Manual page 148

Hardware reference
When an error occurs
Step 1
For the RX Inverter, you need to connect the Digital Operator Display to the
Inverter with an Ethernet cable. Then you can see the error code on the
display. Note: if despite the problem it is still possible to communicate with
the unit, the latest error code can also be read in parameter d081.
Step 2
Use the error code to help troubleshoot the error.
In the following sections typical LED indicator and four-digit Inverter display
patterns are provided to assist in troubleshooting. To show the status of the
indicators, the following conventions are used:
OFF
MS
RED
MS
GREEN
MS
Flashing
MS
Note
Do not clear the trip before you are finished troubleshooting an
error. When you clear the trip, the error code is cleared from the
four-digit display. The trip history can however be read back using
d080 through d086. This will allow you to diagnose the error even
if you accidentally cleared the trip cause.
Option board or inverter errors
During the Initialization process the RUN indicator will remain OFF. Once
the initialization has been completed correctly, the RUN indicator will be ON
and the ERR indicator OFF. The table below shows the indicator and display
patterns caused by Option Board or Inverter Errors.
HARDWARE REFERENCE MANUAL
Not important (Ignore)
MS
Inverter error code
Not important (Ignore)
142