Event code Event name Description Assumed cause
Level
Reference
Min Obs Info
08870000 hex 2nd Motor
Overload
Protection
Motor 2 is overloaded. (1) The characteristics of the
electronic thermal and the
overload characteristics of the
motor do not match.
√
page
A-253
(2) The operation level of the
electronic thermal is not ap-
propriate.
(3) The acceleration/decelera-
tion time is short.
(4) The load is large.
(5) The value of Torque
Boost V
oltage (3004-0A hex,
3009-06 hex) is too high.
08880000 hex Thermistor
Error
The motor’s internal
temperature became
abnormally high.
(1) The motor’s ambient tem-
perature exceeds the specified
range.
√
page
A-255
(2) The motor’s cooling sys-
tem failed.
(3) The load is large.
(4) The value of 1st
Thermistor level (3008-1C
hex) is not appropriate.
(5) The PTC thermistor set-
tings are not appropriate.
(6) The value of T
orque
Boost V
oltage (3004-0A hex,
3009-06 hex) is too high.
(7) The V/f settings are incor-
rect.
(8) There is an incorrect pa-
rameter setting.
Appendices
A-212
M1 Series EtherCAT Type User’s Manual (I670)
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