Mitsubishi Electric Melservo-J5 MR-J5 Series - Page 372

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11 USING A DIRECT DRIVE MOTOR
11.2 Startup [G] [WG]
Setting of magnetic pole detection voltage level by position detection method
For magnetic pole detection using 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.
■Guideline of servo parameter setting
Set the parameters by referring to the following table.
■Setting procedure
1. Detect the magnetic poles, then increase the setting value of [Pr. PL09 Magnetic pole detection - Voltage level] until [AL.
050 Overload 1], [AL. 051 Overload 2], [AL. 033 Overvoltage], [AL. 0E1 Overload warning 1], and [AL. 0EC 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 with MR Configurator2, the test operation of MR Configurator2 automatically completes and the
servo-off state is established.
2. Set the value to approximately 70 % of the value which triggers [AL. 050], [AL. 051], [AL. 033], [AL. 0E1], and [AL. 0EC].
If [AL. 027 Initial magnetic pole detection error] occurs with this value, specify a value intermediate between the value set
at occurrence of [AL. 050], [AL. 051], [AL. 033], [AL. 0E1], and [AL. 0EC] and the value set at the magnetic pole detection
alarm occurrence as the final setting value.
3. Perform the magnetic pole detection again with the final setting value, and make sure that the accuracy of the magnetic
pole detection is as required.
■Setting example
In this example, set the final setting value of [Pr. PL09 Magnetic pole detection - Voltage level] to 49 (setting value at the alarm
occurrence = 70 × 0.7).
Servo status Small ← Medium → Large (10 or less (initial value) 50 or more)
Torque required for operation Small Large
Overload, overcurrent alarm Hardly occurs Easily occurs
Magnetic pole detection alarm Easily occurs Hardly occurs
Magnetic pole detection accuracy Low High
30 35 40 45 65 70
Magnetic pole detection
Setting value of [Pr. PL09]
Occurring
Alarm
Not occurring
While increasing the setting value of [Pr. PL09], carry out
the magnetic pole detection repeatedly.
An alarm has occurred when the setting
value of [Pr. PL09] is set to "70".