Event code Event name Description Assumed cause
Level
Reference
Min Obs Info
183F0000 hex Data Save
Error during
Undervoltage
The frequency refer-
ences set by the oper-
ator, PID commands,
and commands set by
UP
/DOWN signals
could not be correctly
saved to memory at
power OFF.
(1) The control power supply
dropped abnormally quickly
due to rapid discharge of the
DC link bus voltage, etc. when
data was stored at power OFF.
√
page
A-269
(2) Strong ambient noise was
received when data was saved
at power OFF.
(3) An error occurred in the
control circuit.
08890000 hex
Hardware Er-
ror
A combination error
occurred between the
power supply PCB
and the control PCB.
(1) A combination error occur-
red between the power supply
PCB and the control PCB.
√
page
A-270
38A20000 hex Positioning
Control Error
A position deviation
over error occurred in
servo lock or position
control.
(1) The servo lock gain of the
position control system is in-
suf
ficient.
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page
A-270
38A70000 hex
Excessive
Position De-
viation Error
Position deviation be-
came excessive when
position control is ac-
tive.
(1) Encoder disconnection
√
page
A-271
(2) The encoder rotation direc-
tion, motor rotation direction in
wiring phase sequence, or in-
verter output wiring phase se-
quence mismatched.
(3) Set value for excessive de-
viation is too small.
(4) The position control gain is
too small.
(5) The speed control gain is
too small.
(6) A torque limit is applied.
38A30000 hex Abnormal
Setting Re-
lated to the
PG Option
Card
The pulse generator
wiring is broken in the
circuit.
(1) The wiring between the
pulse generator and the pulse
input terminal is disconnected.
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page
A-273
(2) Strong ambient noise was
received.
68440000 hex Mock Alarm A Mock Alarm occur-
red.
(1) Mock Alarm
(3008-2E
hex) is set to
1.
√
page
A-274
Appendices
A-216
M1 Series EtherCAT Type User’s Manual (I670)
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