Omron M1 Series User Manual page 289

PM Motor Adjustment
Adjust the PM motor as shown in the table below depending on its operation status and the phenom-
enon.
Operation status
During startup
M1 Series EtherCAT Type User's Manual (I670)
Phenomenon
The motor may rotate slightly in magnetic pole
alignment during startup.
Set 1st PM Motor Starting Method
Motor rotates
3007Hex-1FHex to 1 to suppress the rotation
in reverse or
amount during startup.
rotates slightly.
When operation is performed with
3007Hex-1FHex set to 0 or 3, reverse rotation be-
comes difficult by lowering 3007Hex-4BHex.
If the motor stalls during startup, a large current
may flow, which causes an overcurrent trip.
Increase the PM motor starting current value.
Increasing the PM motor starting current value im-
proves the magnetic pole alignment during start-
up, which results in an increase in the startup tor-
que.
Motor stalls or
However, setting this parameter to an excessively
causes an
large value may cause detection of an overload.
overcurrent
Check the value in the monitor of electronic ther-
trip.
mal overload protection for motor (monitor mode:
5_62).
Increase the PM motor starting time value.
This increases the time during which the starting
current flows to improve magnetic pole alignment
during startup, which results in an increase in the
startup torque.
Motor starting
Set 3007Hex-1FHex correctly according to the
time is too
motor in use.
long.
7 Vector Control and Applied Functions
Description of adjustment
Adjustment
item
3007Hex-1FHe
x
3007Hex-4BH
ex
3007Hex-4BH
ex
7
3004Hex-19He
x
3007Hex-1FHe
x
7-23