Alarm Code List - Omron RX2 Series User Manual

8 Errors and Remedies
8-1-3

Alarm Code List

This section describes the alarm codes that are specific to the DriveProgramming, as well as the
causes and remedies.
For other errors, refer to the High-function General-purpose Inverter 3G3RX2 Series User's Manual
(I620).
Alarm
Alarm
(cause of
code
inverter trip)
E043 DriveProgram-
ming Invalid
Command
E044 DriveProgram-
ming Nesting
Count Error
E045 DriveProgram-
ming Com-
mand Error
8 - 4
Possible cause
The terminal PRG was
turned ON although no
program was downloaded
into the inverter.
A subroutine is nested
over eight levels.
The "for next" command is
nested over eight levels.
The "if" command is
nested over eight levels.
The jump destination of
the "goto" command
points to the "next" com-
mand that terminates the
"for" or other loop.
A four arithmetic operation
results in the following
error:
Overflow, underflow, or
division by zero
The "ChgParam" and
"MonParam" command
results in the following
error:
• Change to a parameter
that does not exist
• The written value is out
of the setting range
• Change of a parameter
value that cannot be
changed during inverter
operation
• Change of a parameter
value that is protected
against change by the
Soft Lock Selection
(when this setting is
enabled)
Check
Upload the program and
check if it actually exists in
the inverter.
Upload the program and
check the number of nest-
ing levels.
Check if the jump destina-
tion of the "goto" com-
mand is an command that
terminates a loop.
Check the program and
identify the command
which causes overflow,
underflow, or division by
zero.
• Check the parameter or
the value to write to the
parameter.
• In the case that an error
occurs during inverter
operation, check if the
parameter can be
changed during inverter
operation.
• Check the setting of the
Soft Lock Selection
(UA-16).
DriveProgramming User's Manual (I622-E1)
Remedy
Create the program again
and download it to the
inverter.
Correct the program so
that the number of nesting
levels is eight or less.
Correct the jump destina-
tion of the "goto" command.
Correct the program so
that its four arithmetic
operation does not cause
overflow, underflow, or
division by zero.
• Correct the parameter
or the value to write to
the parameter so that it
is within the setting
range.
• Disable the soft lock
function.
• If the parameter can be
changed during opera-
tion, change the setting
of the Soft Lock Selec-
tion (UA-16) to 10 to
enable a parameter
change during inverter
operation.