Omron RX2 Series User Manual page 780

12 Troubleshooting
Icon 2 LIM
When LIM is shown, the inverter is in the following condition(s).
You can see the status of LIM by pressing UP key on the three-lined monitor or on [dC-37].
Occurrence
Output current was
high, and [dC-37]
LIM was set to 01.
Output current was
high, and [dC-37]
LIM was set to 02.
Error occurred
during deceleration.
[dC-37] LIM was set
to 03.
Error occurred
during sudden
acceleration. [dC-37]
LIM was set to 03.
Output current was
high, and [dC-37]
LIM was set to 04.
Error occurred
during operation.
[dC-37] LIM was set
to 05.
Error occurred
during operation.
[dC-37] LIM was set
to 06.
12 - 26
Estimated cause(s)
[bA120] overcurrent suppression function was
enabled and the current increased due to the
load or other factors.
The current was increased by the high ratio of
motor rotation during DC braking that was
caused by the selection of [DB] terminal or
[AF101] DC braking.
[FA-10] acceleration time is too short.
[bA122] overload limit function or similar func-
tion was enabled and the current increased due
to the load or other factors.
[bA122] overload limit function or similar func-
tion was enabled and [FA-10] acceleration time
was too short.
[bA140] overvoltage suppression function was
enabled and P-N voltage increased due to
regenerative load or the like.
[bA122] overload limit function or similar func-
tion was enabled and [FA-12] deceleration time
was too short.
[bA140] overvoltage suppression function was
enabled and P-N voltage increased due to
regenerative load or the like.
[bA110] torque limit function or similar function
was enabled and the current increased due to
the load or other factors.
[bA110] torque limit function or similar function
was enabled and [FA-10] acceleration time was
too short.
The normal limiting was performed according to
the settings of [bA102] upper limiter, [bA103]
lower limiter, and [AG101] and other jump fre-
quencies.
The frequency command at below the minimum
frequency [Hb130] has been input.
High-function General-purpose Inverter RX2 Series User's Manual
Exemplar measures to be taken
Remove the factor for the increased
load.
(E.g., by cleaning a clogged channel,
re-examining the load)
• Reduce the DC braking force in
[AF105] or [AF108].
• For stopping, set longer time for
[AF106] DC braking delay time at the
time of the stop.
• For retry operation at the start, set
longer delay time according to the
factors.
[bb-26] [bb-29] [bb-31]
Make the acceleration time longer in
[FA-10].
Remove the factor for the increased
load.
(E.g., by cleaning a clogged channel,
re-examining the load)
Make the acceleration time longer in
[FA-10].
Remove the factor for the increased
regenerative load.
(E.g., by re-examining the state of the
motor being rotated by external force,
and by re-examining the load)
Make the deceleration time longer in
[FA-12].
Remove the factor for the increased
regenerative load.
(E.g., by re-examining the state of the
motor being rotated by external force,
and by re-examining the load)
Remove the factor for the increased
load.
(E.g., by cleaning a clogged channel,
re-examining the load)
Make the acceleration time longer in
[FA-10].
Re-examine the settings of the
upper/lower limiter or jump frequencies
if necessary.
Set the frequency command at the min-
imum frequency or higher in [FA-01].