Mitsubishi Electric MELSERVO-J5 User Manual page 179

Ac servo system

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■Turning the servo-on command on/off [A]

When the servo-on command is turned off, the servo lock is released after Tb [ms], following which the servo motor coasts.

If the electromagnetic brake is enabled during servo-lock, its service life may be shortened. Therefore, when using this

function with the vertical axis, set Tb to about 1.5 times of the minimum delay time where the moving part will not drop down.

Servo motor speed

Base circuit

(Electromagnetic

brake interlock)

Position command

Electromagnetic

*1 ON: Electromagnetic brake is not activated

OFF: Electromagnetic brake is activated

*2 The electromagnetic brake is released after the release delay time of the electromagnetic brake and the operation time of external circuit

relay or other operations. For the release delay time of electromagnetic brake, refer to "Characteristics of electromagnetic brake" in the

following manual.

Rotary Servo Motor User's Manual (For MR-J5)

*3 Give a position command after the electromagnetic brake is released.

*4 When in the position control mode.

Release delay time and external relay or others

[Pr. PC16 Electromagnetic

brake sequence output]

Operation delay time of

electromagnetic brake

3 BASIC FUNCTION

3.18 Electromagnetic brake interlock function