Omron R88M-K Series User Manual page 392

6-6 Brake Interlock
Operation Timings when Alarm Generates (Servo ON)
Alarm generation
Motor power supply
Dynamic brake
Servo ready
output (READY)
Alarm output (ALM)
Brake interlock
*2
output (BKIR)
6
Brake interlock
*2
output (BKIR)
*1. The dynamic brake operation when an alarm generates depends on Stop Selection with Servo OFF (Pn506).
*2. "t1" is either the time set for the Brake Timing During Operation (Pn438), or the time needed for the motor speed to
drop to speed set in Brake Release Speed Setting (Pn439) or below, whichever comes first.
Note 1.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. The BKIR signal is assigned to the general-purpose output (CN1).
Note 2.If the main circuit power supply turns OFF while the motor is operating, a phase loss alarm or main circuit voltage
low alarm will occur, in which case this operation timing will be applied.
6-22
OFF
Normal
Alarm output
ON
ON
Power supply
OFF
Released
DB Released
Engaged
ON
READY
OFF
ON
OFF
ON
Release request
OFF
Rotation speed A
Pn439 set value
BKIR
Release request
Rotation speed B
Pn439 set value
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
0.5 to 5 ms
No power supply
DB engaged*1
Alarm
t1
Pn438
Brake held
Brake held
When the Pn438
setting is early
When the timing of
reaching the Pn439 set
value or lower is early