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Timing chart
When using the forced stop deceleration function
When [Pr. PA04.3 Forced stop deceleration function selection] is set to "2" (Forced stop deceleration function
enabled).
■Turning the servo-on command on/off
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
0 r/min
ON
Base circuit
OFF
MBR
ON
*1
(Electromagnetic
OFF
brake interlock)
ON
Servo-on command
(from controller)
OFF
ON
Ready-on command
(from controller)
OFF
Operation command
(from controller)
0 r/min
Released
Electromagnetic
brake
Activated
*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 (HG-KNS/HG-SNS)
*3 Give an operation command from the controller after the electromagnetic brake is released.
(95 ms)
(95 ms)
*3
Release delay time and external relay or others
Tb
[Pr. PC02 Electromagnetic
brake sequence output]
Operation delay time of
electromagnetic brake
*2
3 BASIC FUNCTION
3.11 Electromagnetic brake interlock function
3
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