Omron ACCURAX G5 User Manual page 417

Immediate Stop Operation when an Alarm that Supports Immediate Stop is Generated
Speed
[r/mn]
Stop
judgment
speed
(30 r/min)
No alarm generation
Alarm
Torque limit Normal torque limit
Overspeed protection
For normal operation
threshold
Normal operation (command from the host)
If the actual speed is not 30 r/min or less after the time set by the Alarm Generation Allowable Time Setting
(Pn614) elapses, an immediate alarm status will occur. In addition, if an alarm that does not support
immediate stop occurs inside the driver at immediate stop, an immediate alarm status will occur.
Set the allowable overspeed level to Pn615, "Overspeed Detection Level Setting at Immediate
Stop," as a protective measure against runaway at an immediate stop. Err26.1, "overspeed 2," if
it occurs, will cause an immediate error trip because it is an error that does not support immediate
stop. However, if the setting is below Pn513, "Overspeed Detection Level Setting," an immediate
stop will not take place because Err26.1, "overspeed 2," will occur before Err26.0, "overspeed."
In addition, if Err26.0 and Err26.1 are detected at the same time, Err26.0 will be displayed.
However, an immediate stop will not take place because Err26.1 has also occurred internally.
Pn511
Immediate Stop Torque
Setting
0 to 500
range
Set the torque limit for the following cases.
· Drive prohibition deceleration with the Stop Selection for Drive Prohibition Input (Pn505) set to 2.
· Deceleration with the Stop Selection with Main Power Supply OFF (Pn507) set to 8 or 9.
· Deceleration with the Stop Selection with Servo OFF (Pn506) set to 8 or 9.
The normal torque limit will be used if this parameter is set to 0.
Pn512
Overload Detection Level Setting
Setting
0 to 500
range
Set the overload detection level.
Accurax G5 AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
Motor speed
Speed command
Pn511 immediate Stop Torque
(Measure to lessen the impact at an immediate stop)
Pn615 Overspeed Detection Level Setting at Immediate Stop
(Protection from runaway at an immediate stop)
Set the Overspeed Detection Level Setting
at Immediate Stop (Pn615) to the Overspeed
Detection Level Setting (Pn513) or higher.
Immediate stop
undefined
Immediate stop time
Unit %
Unit %
8-6 Extended Parameters
An alarm that supports
immediate stop is generated.
Normal torque limit
For normal operation
Alarm status (Operation after the stop:
Dynamic brake/free-run)
Default
0
setting
Default
0
setting
Time
8
All
Power OFF
−
and ON
All
Power OFF
−
and ON
8-51