Omron M1 Series User Manual page 751

Alarm
Alarm
sub-
code
code
(ErC)
M1 Series Standard Type User's Manual (I669)
Name Description
(1) Inverter settings are
not appropriate
Magnetic pole
(2) Error with speed/
position detec-
magnetic pole position
tion error
sensor connection
(3) Motor rotation direc-
tion and sensor output
do not match
(4) Error in terminal
block board connection
(5) Strong noise re-
ceived from surrounds
9 Troubleshooting
Check point and remedy reference
Check presence and model of the used mo-
tor, and of the speed/magnetic pole position
sensor, and that 1st Drive Control Selection
(F42)/Input Terminal [PIA][PIB] Pulse Input
Format Selection (d14) and Input Terminal
[PIA][PIB] Encoder Pulse Resolution (d15)
are coordinated.
→ Check the equipment configuration
(model and specifications of motor,
speed/magnetic pole position sensor),
and set F42/d14/d15 correctly.
Set the 1st PM Motor Starting Method (P30)
to 0 or 3, and check if the 1st PM Motor
Magnetic Pole position Offset (P95) is set to
"999: offset has not been adjusted."
→ Set P95 correctly. (Auto-tuning also is
possible. Refer to Offline Auto-tuning of
Synchronous Motor (PM Motor) on
page 6-67.)
Check for errors with speed/magnetic pole
position sensor output wiring connection,
and the phase sequence of AB or UVW
phase.
→ Correctly connect the feedback input
terminal block board with the speed/
magnetic pole position sensor.
Check for bad connections in the motor
wiring, and the phase sequence.
→ Ensure a correct connection with the in-
verter and motor.
Check if the terminal block board connector
and inverter unit connector are correctly con-
nected.
→ Mount the terminal block board correct-
ly in the inverter unit.
Check measures against noise (grounding
conditions, signal wiring and communication
cable/main circuit wiring and installation
methods, etc.).
→ Implement measures against noise.
9
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