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11-14
11-3 Alarms
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
11
Error and Maintenance
Emergency Stop Operation
Precautions for Correct Use
As the prevention of overrun at an emergency stop, set the allowable overspeed level on the
Overspeed Detection Level Setting at Emergency Stop (Pn615). The Overspeed 2 (Alarm
No.26.1) is the alarm that does not support emergency stop. If it occurs, error trip occurs
immediately.
Set a higher value on the Overspeed Detection Level Setting at Emergency Stop (Pn615) than
one on the Overspeed Detection Level Setting (Pn513). Otherwise, the Overspeed 2 (Alarm
No.26.1) occurs earlier than the Overspeed (Alarm No.26.0). Thus an emergency stop does not
happen. If the Overspeed (Alarm No.26.0) and the Overspeed 2 (Alarm No.26.1) occur at the
same time, the emergency stop does not happen, either.
If the actual rotation speed is not lower than 30 r/min after the time set on the Alarm Detection
Allowable Time Setting (Pn614) elapses since an alarm that support an emergency stop occurs,
it will be an alarming state immediately.
If an alarm which is not supported by emergency stop operation occurs while in emergency stop,
Alarming state occurs immediately.
Torque limit
Speed
[r/min]
Time
Alarming state (Operation after the stop:
Dynamic brake or Free-run)
Emergency
stop operation
Normal operation
(Command from the Host)
Speed
command
Motor speed
Normal torque limit
Normal torque limit
An alarm that needs an emergency stop occurred
Alarm not occurred
Alarm
Speed
deemed
as stop
[30 r/min]
Emergency stop time
Overspeed
protection
threshold
Normal operation
Normal operation
Overspeed Detection Level Setting at Emergency Stop (Pn615)
(overrun prevention at an emergency stop)
Emergency Stop Torque (Pn511)
(a measure to absorb the shock due to the emergency stop)
Содержание OMNUC G5 R88D-KN series
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