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5-1
Troubleshooting using the LED indicators
5-1-1
Option board or inverter errors
Table 77 Option board or inverter errors
Display & Indicators
The four LED indicators on the Option
Board provide information on the
Option Board mode and status and the
network status.
When an error occurs, the Option
Board indicator pattern provides trou-
bleshooting information. For certain
errors, additional information can be
obtained from the trip error code given
by the four-digit display of the Inverter.
In the following sections typical LED
indicator and four-digit Inverter display
patterns are provided to assist in trou-
bleshooting. To show the status of the
indicators, the following conventions
are used:
OFF
ON
Flashing
Not important (Ignore)
Inverter error code
Not important (Ignore)
Tip
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.
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 pat-
terns caused by Option Board or Inverter Errors.
Possible Cause(s)
The Inverter does not power up.
The Option Board is not mounted properly.
The Option Board connector is damaged.
The Inverter RS input is ON.
The Option Board encountered a fatal error
during Operation.
Troubleshooting and Maintenance
Follow the instruction provided in the MX2-A
Inverter user's manual section 6-1-4 to trouble-
shoot.
Check that the Option Board is mounted prop-
erly and restart the Inverter.
Replace the Option Board.
Switch the Inverter RS input OFF.
Check that the Option Board is mounted prop-
erly and restart the Option Board. If the prob-
lem persists, replace the Option Board.
SECTION 5
Corrective Action
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Troubleshooting
