Event code Event name Description Assumed cause
Level
Reference
Min Obs Info
08800000 hex Cooling Fin
Overheat Er-
ror
The cooling fin tem-
perature rose.
(1) The inverter’s ambient
temperature exceeds the
specified range.
√
page
A-241
(2) The cooling air passage is
blocked.
(3) The flow volume of the
cooling fan dropped because it
reached the end of life or
failed.
(4) The load is large.
08810000 hex Inverter
Overheat Er-
ror
The inverter’s internal
temperature exceed-
ed the allowable
range.
(1) The inverter’s ambient
temperature exceeds the
specified range.
√
page
A-242
08820000 hex Inrush Cur-
rent Preven-
tion Resistor
Overheat
The inverter’s built-in
inrush current preven-
tion resistor overheat-
ed.
(1) The power supply to the in-
verter was frequently turned
ON and OFF
.
√
page
A-243
(2) The power supply to the in-
verter was not frequently
turned ON and OFF.
08830000 hex
Braking Re-
sistor Over-
heat Error
The thermal for the
braking resistor was
activated.
(1) The braking load is large.
√
page
A-244
(2) The deceleration time is
too short.
(3) There is an incorrect set-
ting in Electronic thermal
overload protection for
braking resistor (3004-33 to
35 hex).
08840000 hex Inverter
Overload
Protection
The inverter’s internal
temperature became
abnormally high.
(1) The inverter’s ambient
temperature exceeds the
specified range.
√
page
A-246
(2) The value of T
orque
Boost V
oltage (3004-0A hex,
3009-06 hex) is too high.
(3) The acceleration/decelera-
tion time is short.
(4) The load is large.
(5) The cooling air passage is
blocked.
(6) The flow volume of the
cooling fan dropped because it
reached the end of life or
failed.
(7) There is a large leakage
current due to long wiring.
Appendices
A-210
M1 Series EtherCAT Type User’s Manual (I670)
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