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8-6 Extended Parameters
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
8
Parameters Details
Set the states during deceleration and after stopping, which follow the Servo-OFF.
The dynamic brake is rated for short-term operation. Use it only for emergency stopping. Design
the system to stop for at least three minutes after the dynamic brake operates. Otherwise, the
dynamic brake circuits may fail or the dynamic brake resistor may burn.
Explanation of Set Values
*1. Decelerating refers to a period between when the motor is running and when the motor speed reaches
30 r/min or less. Once the motor reaches a speed of 30 r/min or less and moves to the after stop
status, follow the subsequent operation based on the after stop status regardless of the motor speed.
*2. The motor may make a sudden motion.
*3. Emergency stop refers to immediate stop operation applying control with servo is still kept ON. At that
time, the torque command value is restricted by the Emergency Stop Torque (Pn511).
Precautions for Correct Use
If an error occurs when servo is in Servo OFF state, the operation conforms to the settings of Stop
Selection for Alarm Detection (Pn510). Additionally, if the main power supply is turned OFF when
servo motor is in Servo OFF state, it conforms to the settings of Stop Selection with Main Power
Supply OFF (Pn507).
Pn506
Stop Selection with Servo OFF
Setting
range
0 to 9 Unit
Default
setting
0
Data
attribute
B
All
Set
value
Stopping method during
deceleration
*1
Operation after stopping
(approx. 30 r/min or lower)
Error counter
0, 4 Dynamic brake operation Dynamic brake operation Clear
*2
1, 5 Free-run Dynamic brake operation Clear
*2
2, 6 Dynamic brake operation Servo free Clear
*2
3, 7 Free-run Servo free Clear
*2
8 Emergency stop
*3
Dynamic brake operation Clear
*2
9 Emergency stop
*3
Servo free Clear
*2
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