Omron OMNUC G User Manual page 246

5-5 Brake Interlock
Operation timing during Servo ON or OFF (when Servomotor is rotating)
Regenerative energy occurs when the Servomotor is stopped on an alarm under this operation
timing.
For this reason, the operation cannot be repeated. Wait at least 10 minutes before the Servomotor
cools down.
Run Command (RUN)
Dynamic Brake
Relay
Servomotor
5
Brake Interlock
Output (BKIR)*3
Servomotor
Rotation Speed
*1. The Servo ON status will not occur until the Servomotor speed drops below approximately 30 r/min.
*2. The operation of the dynamic brake during Servo OFF depends on the Stop Selection with Servo OFF (Pn069).
*3. The Brake Interlock (BKIR) signal is output on the release request command that comes first, either from the Servo
Controller or the MECHATROLINK-II. The BKIR signal is used by assigning it to the general purpose outputs on
CN1.
In the example above, a release request was not issued from the network.
*4. t1 is either the Brake Timing during Operation (Pn06B) setting or the time for the Servomotor speed to drop below
approximately 30 r/min, whichever occurs first.
Note The Servomotor will not change to Servo ON until it stops even if the Servo ON input is turned ON while it
is decelerating.
5-13
ON
Servo OFF
*1
OFF
Approx. 2 ms
ON
DB Engaged
OFF
ON
Deenergized
OFF
ON
Brake Engaged
OFF
Approx. +30 r/min
Servo ON Enabled
Approx. −30 r/min
Servo ON
DB Released
Approx. 40 ms
Energized
Approx. 2 ms
Release Request
Rotation Speed A
Approx. 30 r/min
BKIR
Release Request
Rotation Speed B
Approx. 30 r/min
Servo OFF
1 to 5 ms
DB Engaged *2
Deenergized
t1*4
Pn06B
Brake Engaged