Operation - Omron G5 Series User Manual

Operation Timing When an Alarm Occurs (Servo ON)
Alarm occurs
Motor power supply
Dynamic brake
Servo ready
completed output
(READY)
Alarm output (ALM)
Brake interlock
2
output (BKIR)*
Brake interlock
2
output (BKIR)*
*1 The operation of the dynamic brake when there is an alarm depends on the set value in Stop Selection with
Servo OFF (Pn506).
*2 "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 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 Brake Interlock Output (BKIR) signal is allocated to the
general-purpose output (CN1).
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 is applied.
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User's Manual
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
Rotation speed B
request
Pn439 set value
0.5 to 5 ms
No power supply
1
DB released*
Alarm
t1
Pn438
Brake held
Brake held
6 Applied Functions
When Pn438 set
value comes earlier
When Pn439 set value
or lower comes earlier
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