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15. USING A DIRECT DRIVE MOTOR
(5) Setting of the magnetic pole detection voltage level by the position detection method
For the magnetic pole detection by the position detection method, set the voltage level with [Pr. PL09
Magnetic pole detection voltage level]. For the magnetic pole detection by the minute position detection
method, the voltage level setting is not required.
(a) Guideline of parameter settings
Set the parameters by referring to the following table.
(b) Setting procedure
1) Perform the magnetic pole detection, and increase the setting value of [Pr. PL09 Magnetic pole
detection voltage level] until [AL. 50 Overload 1], [AL. 51 Overload 2], [AL. E1 Overload warning
1], and [AL. EC Overload warning 2] occur. Increase the setting value by five as a guide value.
When these alarms and warnings occur during the magnetic pole detection by using MR
Configurator2, the test operation of MR Configurator2 automatically completes and the servo-off
status is established.
2) Specify the setting value that is an approximately 70% of the value set when [AL. 50 Overload 1],
[AL. 51 Overload 2], [AL. E1 Overload warning 1], and [AL. EC Overload warning 2] occurred as
the final setting value. However, if [AL. 27 Initial magnetic pole detection error] occurs with this
value, specify a value intermediate between the value set at [AL. 50 Overload 1], [AL. 51
Overload 2], [AL. E1 Overload warning 1], or [AL. EC Overload warning 2] and the value set at
the magnetic pole detection alarm as the final setting value.
3) Perform the magnetic pole detection again with the final setting value.
(c) Setting example
Magnetic pole detection
[Pr. PL09] setting value
Existent
Alarm
Non-existent
In this example, the final setting value of [Pr. PL09] is 49 (Setting value at the alarm occurrence = 70
× 0.7).
Servo status
Torques required for operation
Overload, overcurrent alarm
Magnetic pole detection alarm
Magnetic pole detection accuracy
30
35
40
While increasing the setting value of [Pr. PL09], carry out the
magnetic pole detection repeatedly.
[Pr. PL09] setting
(Guide value)
Not frequently occurs
Frequently occurs
45
65
15 - 13
Small ← Medium → Large
(10 or less (initial value) 50 or more)
Small
Large
Frequently occurs
Not frequently occurs
Low
High
70
An alarm has occurred when the setting
value of [Pr. PL09] is set to 70.
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