Omron R88D-KTA5L User Manual page 489

Immediate Stop Operation when an Alarm that Supports Immediate Stop is Generated
Speed
[r/mn]
Speed
deemed
as stop
(30 r/min)
No alarm generation
Alarm
Torque limit Normal torque limit
Overspeed protection
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 Detection 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 drive 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. Alarm 26.1, "overspeed 2,"
if it occurs, will cause an immediate alarm trip because it is an alarm 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 Alarm 26.1, "overspeed 2," will occur before Alarm
26.0, "overspeed."
In addition, if Alarm 26.0 and Alarm 26.1 are detected at the same time, Alarm 26.0 will be
displayed. However, an immediate stop will not take place because Alarm 26.1 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.
 This object is set in units of 0.1% of the rated torque.
OMNUC G5-SERIES 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 %
8-6 Extended Parameters
An alarm that supports
immediate stop is generated.
Normal torque limit
Normal operation
Alarm status (Operation after the stop:
Dynamic brake/free-run)
Default
0
setting
Time
8
All
Power OFF
−
and ON
8-52