(5) Strong ambient noise was re-
ceived when saving user set val-
ues by User preference dataset
Registration (3020-5E hex).
Check the measures against
noise (grounding condition, con-
trol/main circuit wiring and instal-
lation). Also, perform the same
check as in (4).
→ This may be an error on the
PCB including the CPU.
Excessive noise may be generat-
ed around the inverter. Consider
taking measures against noise.
Attached in-
formation
None
Precautions/
Remarks
None
Event name Operator Communications Error Event code 28110000 hex
Meaning An error occurred in communications between the operator and the inverter.
Source EtherCAT Master Function Mod-
ule
Source details Slave Detection tim-
ing
Continuously
Error attrib-
utes
Level Minor fault Recovery Error reset Log category System log
Effects User program Continues. Operation Motor stops.
Indicators EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System-de-
fined varia-
bles
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
(1) The communications cable is
broken or has a contact failure.
Check the cable for conductivity
and connection, or for poor con-
tact at the connector
.
→ Insert the connector securely
.
→ Replace the communications
cable.
None
(2) The surface cover is not se-
curely attached due to many con-
trol wires, causing the operator to
be raised.
Check the installation of the sur-
face cover.
→ Use the recommended wire
size (0.75 mm
2
) for wiring.
→ Reroute the wiring inside the
unit to ensure that the surface
cover is securely installed.
None
(3) Strong ambient noise was re-
ceived.
Check the measures against
noise (grounding condition, sig-
nal line or communications cable/
main circuit wiring and installa-
tion method, etc.).
→ Improve the measures against
noise.
Excessive noise may be generat-
ed around the inverter. Consider
taking measures against noise.
(4) The operator is faulty. Check if an error occurs in anoth-
er operator.
→ Replace the operator
.
None
Attached in-
formation
None
Precautions/
Remarks
None
Appendices
A-258
M1 Series EtherCAT Type User’s Manual (I670)
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