Alarm
code
Alarm
subcode
Name Description 　Check point and remedy reference
1F Hex
(Er1)
0000 Hex Memory error
(1) Power discon-
nected during param-
eter data writing (in
particular during initi-
alization) and control
power dropped
Initialize data with Data Initialization
(3008Hex-04Hex), and when initialization is
complete, use the reset to check that the
alarm can be canceled.
→ Restore the initialized parameter data,
and restart operation.
(2) During parameter
data writing (in par-
ticular during initiali-
zation), strong noise
received from sur-
rounds
Check methods for measures against noise
(grounding conditions, control/main circuit
wiring and installation).
Additionally
, perform the same checks as in
(1).
→
Perform measures against noise, re-
store the initialized parameter data, and
restart operation.
(3) Error occurred in
control circuit
Initialize data with Data Initialization
(3008Hex-04Hex), and when initialization is
complete, use the reset to check if the alarm
continues even when trying to cancel this.
→ Replace the inverter.
(4) Power discon-
nected during saving
of user settings with
object
3020Hex-5EHex,
and control power
dropped
Save user settings with object
3020Hex-5EHex, and when saving is com-
plete, use the reset to check if the alarm con-
tinues even when trying to cancel this.
→ Replace the inverter.
(5) During saving of
user settings with ob-
ject 3020Hex-5EHex,
strong noise received
from surrounds
Check methods for measures against noise
(grounding conditions, control/main circuit
wiring and installation).
Additionally
, perform the same checks as in
(4).
→ Replace the inverter.
21 Hex
(Er3)
0000 Hex CPU error
(1) Strong noise re-
ceived from sur-
rounds
Check measures against noise (grounding
conditions, signal wiring and communication
cable/main circuit wiring and installation
methods, etc.).
→ Improve measures against noise.
9 Troubleshooting
9-5
M1 Series EtherCAT Type User’s Manual (I670)
9-1 Alarm Display and Remedies
9
9-1-2 Alarm Code List
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