Omron M1 Series User Manual page 508

9 Troubleshooting
Alarm
code subcode
33 Hex
0000 Hex
(ErF)
36 Hex
0000 Hex
(ErH)
38 Hex
0000 Hex
(Ero)
FE Hex
0000 Hex Mock alarm
(Err)
44 Hex
(ErU)
9-12
Alarm
Name
(1) During data save
at power interrup-
tions, the control
power supply drop-
ped suddenly as a
result of rapid dis-
charge of the Main
Circuit DC Voltage,
etc.
Data save er-
(2) Strong noise re-
ror in case of
ceived from sur-
undervoltage
rounds during data
saving at power in-
terruption.
(3) Error occurred in
control circuit
(1) Error in combina-
Hardware er-
tion of control PCB
ror
and power PCB
(1) Position control
Position con-
system insufficient
trol error
gain (servo lock)
(1) Object
3008Hex-2EHex
(Mock alarm) set to
1.
(1) A disconnection
occurred on the tool
during a test run.
Tool discon-
(2) A disconnection
nection diag-
occurred on the tool
nosis
during forced status
changing of multi-
function output.
Description Check point and remedy reference
Check the power drop time at Main Circuit
DC Voltage at power interruption.
→ Eliminate the cause of rapid discharge
of the Main Circuit DC Voltage, etc. After
performing a reset to cancel the alarm,
return the frequency reference and PID
command to their original settings, and
restart operation.
Check methods for measures against noise
(grounding conditions, control/main circuit
wiring and installation).
→ Implement measures against noise. Af-
ter performing a reset to cancel the
alarm, return the frequency reference
and PID command to their original set-
tings, and restart operation.
Check that error occurs every time at power
on.
→ Replace the inverter.
Replace the inverter.
Readjust Servo Lock Gain (300EHex-62Hex)
and Speed Control 1 P Proportional Gain
(3014Hex-04Hex).
→ Perform a reset.
Check if the USB cable or a connector is dis-
connected.
→ Perform a reset.
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