Mitsubishi Electric MELSERVO-J4 series Instruction Manual page 440

15. USING A DIRECT DRIVE MOTOR
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).
30 35 40
While increasing the setting value of [Pr. PL09], carry out the
magnetic pole detection repeatedly.
45 65
15 - 13
70
An alarm has occurred when the setting
value of [Pr. PL09] is set to 70.