Event code Event name Description Assumed cause
Level
Reference
Min Obs Info
684A0000 hex Low Torque
Detected
The output torque re-
mained below the de-
tection level for more
than the detection
time.
(1) Low torque detected
√
page
A-282
684B0000 hex Motor Run
Time Over
The cumulative run
time of the motor
reached the set time
for maintenance.
(1) Motor run time over
√
page
A-282
684C0000 hex
Number of
Startups
Over
The cumulative num-
ber of startups of the
motor reached the set
count for mainte-
nance.
(1) Number of Startups Over
√
page
A-283
684D00000 hex PTC Ther-
mistor Error
The PTC thermistor
detected a tempera-
ture not less than the
set temperature.
(1) The motor’s ambient tem-
perature exceeds the specified
range.
√
page
A-284
(2) The motor’s cooling sys-
tem failed.
(3) The load is large.
(4) The value of 1st
Thermistor Error Detection
Level (3008-1C hex) is not ap-
propriate.
(5) The PTC thermistor set-
tings are not appropriate.
(6) The value of 1st Manual
T
orque Boost V
oltage
(3004-0A hex) is too high.
(7) The V/f settings are incor-
rect.
(8) There is an incorrect pa-
rameter setting.
96530000 hex Communica-
tion T
imeout
with Sysmac
Studio
A communication
timeout occurred in
the connection be-
tween Sysmac Studio
and the Safety CPU
Unit.
(1) A communications cable is
broken.
√
page
A-285
Appendices
A-218
M1 Series EtherCAT Type User’s Manual (I670)
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