Event name Input Phase Loss Error Event code 280F0000 hex
Meaning There is an input phase loss, or the power supply has a large phase-to-phase imbalance.
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) Wiring to the main power sup-
ply input terminals is disconnect-
ed.
Measure the input voltage.
→ Repair or replace the main
power supply input wiring or in-
put devices (molded case circuit
breaker
, electromagnetic contac-
tor
, etc.).
None
(2) The main power input termi-
nal is not firmly tightened.
Check if there are loose screws
on the main power supply input
terminals.
→ Retighten the screws to the
recommended tightening torque.
Tighten the screws to the recom-
mended tightening torque.
(3) The 3-phase power supply
has a large phase-to-phase im-
balance.
Measure the input voltage.
→ Install an AC Reactor (ACR)
to reduce phase-to-phase imbal-
ance.
→ Increase the capacity of the
inverter.
Install a DC reactor
.
(4) An excessive load is periodi-
cally applied.
Measure the ripple waveform of
the DC link bus voltage.
→ If the ripple of the DC link bus
voltage is large, increase the in-
verter capacity.
Select a motor and an inverter
according to the load.
(5) A single-phase power supply
was connected to the product re-
quiring a 3-phase power supply.
Recheck the inverter model.
→ Reselect an inverter according
to the power supply specifica-
tions.
Select an inverter according to
the power supply specifications.
Attached in-
formation
None
Precautions/
Remarks
None
Appendices
A-239
M1 Series EtherCAT Type User’s Manual (I670)
A-5 Sysmac Error Status Codes
A
A-5-2 Error Descriptions
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