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3 BASIC FUNCTION
3.16 Electromagnetic brake interlock function
■
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.
*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 (HK series)
*3 Give a position command after the electromagnetic brake is released.
*4 When in the position control mode.
*1
ON
OFF
ON
OFF
0 r/min
ON
OFF
0 r/min
(95 ms)
(95 ms)
*3
Tb
[Pr. PC16 Electromagnetic
brake sequence output]
Servo motor speed
Base circuit
Operation delay time of
electromagnetic brake
SON
(Servo-on)
Position command
*4
Released
Electromagnetic
brake
Activated
Release delay time and external relay or others
*2
MBR
(Electromagnetic
brake interlock)