12 Troubleshooting
12 - 18
High-function General-purpose Inverter RX2 Series User’s Manual
The inverter displays this error only when timeout occurs because of a malfunction due to noises, loose
connection or disconnection of circuit for RS485 communication (such as Modbus-RTU).
This error function can be enabled and disabled by setting of the communication error selection
[CF-05].
The error is generated if the data of RTC incorporated in the operator keypad is returned to the initial
data.
This error is output when an invalid instruction is detected in operation of a program which is
downloaded to the inverter while the programing function EzSQ is used.
The error is also output if the program is put into action in the condition that the program hasn’t been
written.
This error is output when the nesting frequency of a subroutine, “for” statement, “next” statement, etc.
on a program exceeds 8 times while the programing function EzSQ is used.
E041 RS485 Communication Error
Occurrence
Estimated cause(s)
Exemplar measures to be taken
Error occurred after
communication is
started.
• Loose connection
• Disconnection
Check the wiring to see whether or not the connection is prop-
erly made.
Noise is mixed.
The situation may be improved by taking a noise countermea-
sure such as wiring separation.
E042 RTC Error
Occurrence
Estimated cause(s)
Exemplar measures to be taken
Error occurred at
power-on.
A battery in the operator
runs out.
Replacement of the battery and setting of the date solve the
issue.
The error occurs when the power supply is turned ON with a
dead battery.
E043 EzSQ Illegal Instruction Error
Occurrence
Estimated cause(s)
Exemplar measures to be taken
Error occurred when
the program was
about to put into
action.
Writing error due to
noise
There is a possibility of EzSQ program writing error and if
there is a noise source nearby, the situation may be improved
by taking a noise countermeasure such as keeping the noise
source away and writing the program.
Program hasn’t been
entered.
EzSQ program needs to be written in the factory default set-
ting condition and after initialization. Write in the program.
E044 EzSQ Nest Count Error
Occurrence
Estimated cause(s)
Exemplar measures to be taken
Error occurred when
the program was put
into action.
Program structure is too
complicated.
The program has deep nesting of a subroutine, “for” state-
ment, “next” statement, etc., with its nesting frequency
exceeding 8 times. Improvement of the program structure is
required.
Summary of Contents for RX - 2
Page 1: ...High function General purpose Inverter RX2 Series User s Manual I620 E1 01 3G3RX2...
Page 54: ...1 Overview 1 22 High function General purpose Inverter RX2 Series User s Manual...
Page 136: ...2 Design 2 82 High function General purpose Inverter RX2 Series User s Manual...
Page 592: ...8 Applied Settings 8 192 High function General purpose Inverter RX2 Series User s Manual...
Page 754: ...11 Options 11 56 High function General purpose Inverter RX2 Series User s Manual...
Page 794: ...12 Troubleshooting 12 40 High function General purpose Inverter RX2 Series User s Manual...
Page 919: ......
