Omron G5 R88D-KE Series, User Manual

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6 Applied Functions
6 - 20
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User’s Manual
Based on these operation timings, regenerative energy is produced if the motor rotation stops
abnormally.
Accordingly, repeated operation cannot be performed. Provide a wait time of at least 10 minutes for the
motor to cool down.
*1 The servo does not turn ON until the motor rotation speed drops to the set value or lower in Pn439.
*2 The operation of the dynamic brake when the servo is OFF depends on the set value in Stop Selection with
Servo OFF (Pn506).
*3 The Brake Interlock Output (BKIR) signal is output when a release request command is received from servo
control. The BKIR signal is allocated to the general-purpose output (CN1).
In the above example, no release request is received from the network.
*4 “t1” is the time set in the Brake Timing During Operation (Pn438), or the time until the motor speed drops to the
setting speed or lower in Brake Release Speed Setting (Pn439), whichever is shorter.
Note Even when the Servo ON input is turned ON again while the motor is decelerating, the system does not
enter the servo ON state until the motor stops.
Servo ON/OFF Operation Timing (When Motor is Rotating)
Operaton command
(RUN)
ON
OFF
Dynamic brake
Released
Engaged
Motor power supply
ON
OFF
Brake interlock
output (BKIR)*
3
ON
OFF
Approx. 2 ms 1 to 5 ms
Approx. 4 ms Pn438
Approx. 60 ms
Servo OFF Servo ON Servo OFF *
1
DB engaged DB engaged *
2
DB released
Power supply No power supply
Release request
Release
request
Brake held
Brake held
t1*
4
Motor rotation speed
Servo ON enabled
Approx. +30 r/min
Pn439 set value
Pn439 set value
Approx. -30 r/min
When Pn438 set
value comes earlier
When Pn439 set
value comes earlier
BKIR
No power supply