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4. OPERATION AND FUNCTIONS
4 - 6
4.2.3 Magnetic pole detection method setting
Set a magnetic pole detection method to the 1st digit (method selection for the magnetic pole detection) of
parameter No.PS08.
Method selection for the magnetic pole detection
0: Position detection method
4: Minute position detection method
Parameter No.PS08
4.2.4 Setting the magnetic pole detection voltage level of the position detection method
Set the voltage level in parameter No.PS09 (Magnetic pole detection voltage level) to perform magnetic pole
detection with the position detection method. Voltage level setting is not required when detecting magnetic poles
by the minute position detection method.
(1) Guideline of parameter settings
Set the parameters referring to the following table.
Parameter No.PS09 setting value
(Indication)
Servo status
Small
Middle Large
(Less than 10 (Initial value) More than 50)
Torque at operation Small Large
Overload, overcurrent alarm
Not frequently
occurred
Frequently occurred
Magnetic pole detection alarm Frequently occurred
Not frequently
occurred
Magnetic pole detection accuracy Low High
(2) Setting procedure
(a) By carrying out the magnetic pole operation, make the setting of parameter No.PS09 (magnetic pole
detection voltage level) larger until the overload 1 (50), overload 2 (51), overload warning 1 (E1) and
overload warning 2 (EC) occur. To get a rough idea, make it lager in "5". When these alarms and
warnings occur during the magnetic pole detection by MR Configurator, the test operation of MR
Configurator is automatically completed and the servo-off status is established.
(b) Set the final setting value to approximately 70% of the value which is set at the occurrence of the
overload 1 (50), overload 2 (51), overload warning 1 (E1) and overload warning 2 (EC). However, in the
case where the initial magnetic pole detection error (27) occurs with this setting value, set the final
setting value to the value intermediate between the setting value at the occurrence of the overload 1
(50), overload 2 (51), overload warning 1 (E1), overload warning 2 (EC) and the setting value at the
occurrence of the magnetic pole detection alarm.
(c) Carry out the magnetic pole detection again with the final setting value.