18-22
Chapter 18
Tips/FAQ/Troubleshooting
E040 Operator keypad
communication error
The inverter displays this error when timeout occurs
because of a malfunction due to noises, loose
connection
or
disconnection
of
circuit
for
communication with the operator keypad.
This error function can be enabled and disabled by
setting of the operation selection at disconnection of
operator keypad [UA-20].
E041 RS485
communication error
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].
E041
Occurrence
Estimated cause(s)
Exemplar measures to be taken
Error occurred
after
communication is
started.
• Noise is mixed.
• The situation may be improved by taking a noise countermeasure
such as wiring separation.
• Loose connection
• Disconnection
• Check the wiring to see whether or not the connection is properly
made.
E040
Occurrence
Estimated cause(s)
Exemplar measures to be taken
Error occurred
after
communication is
started.
• Noise is mixed.
• The situation may be improved by taking a noise countermeasure
such as wiring separation.
• Loose connection
• Disconnection
• Check the wiring to see whether the connection is properly made.
Summary of Contents for SJ Series
Page 39: ...5 4 Chapter 5 Included Items Memo ...
Page 55: ...6 16 Chapter 6 Installation Memo ...
Page 91: ...7 36 Chapter 7 Wire Connection and Optional Devices Memo ...
Page 135: ...9 40 Chapter 9 Operating Instructions Memo ...
Page 145: ...10 10 Chapter 10 Test Run Memo ...
Page 159: ...12 2 6 Chapter 12 Inverter Functions Memo ...
Page 169: ...12 3 10 Chapter 12 Inverter Functions Memo ...
Page 195: ...12 5 8 Chapter 12 Inverter Functions Memo ...
Page 217: ...12 8 12 Chapter 12 Inverter Function Memo ...
Page 287: ...12 10 32 Chapter 12 Inverter Functions Memo ...
Page 303: ...12 11 16 Chapter 12 Inverter Functions Memo ...
Page 349: ...12 15 8 Chapter 12 Inverter Function Memo ...
Page 395: ...12 17 34 Chapter 12 Inverter Functions Memo ...
Page 397: ...12 18 2 Chapter 12 Inverter Functions Memo ...
Page 415: ...12 19 18 Chapter 12 Inverter Function Memo ...
Page 581: ...15 10 Chapter 15 Optional Cassettes Memo ...
Page 591: ...16 10 Chapter 16 ProDriveNext EzSQ Memo ...
Page 642: ...18 49 Chapter 18 Tips FAQ Troubleshooting Memo ...
Page 650: ...19 8 Chapter 19 Maintenance and Inspection Memo ...
Page 781: ...Appendix 1 70 Appendix 1 List of Parameters Memo ...