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8-29
8-4 Analog Control Parameters
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
8
Parameters Details
Explanation of Set Values
Œ
When the zero speed designation input is turned ON, the speed command is forcibly set to 0.
Œ
Set the acceleration/deceleration setting of the speed command using Soft Start Acceleration Time
(Pn312), Soft Start Deceleration Time (Pn313) or S-curve Acceleration/Deceleration Time Setting (Pn314).
Œ
When the zero speed designation input is tuned ON, the speed command is forcibly set to 0. When
the actual motor speed is less than the Position Lock Level Setting (Pn316), the operation switches
to position control and servo locks. In addition, when the zero speed designation input is turned
OFF, the operation switches to speed control.
Œ
Since the position command for position control is forced to be 0, properly set the position loop
gain, various error detection functions and other settings.
Œ
Use this parameter when the CONTROL mode Selection (Pn001) is set to 1 (speed control).
This may not operate correctly if the CONTROL mode Setting (Pn001) is set to 3 (position or speed
control) or 4 (position or torque control).
Pn315
Zero Speed Designation Selection
Setting
range
0 to 3 Unit
−
Default
setting
Power OFF
and ON
−
Speed Torque
Set
value
Explanation
0 Zero speed designation function is disabled.
1 Speed command becomes 0 upon zero speed designation input. (Refer to Figure A)
2
Speed command becomes 0 upon zero speed designation input, and servo locks with
position control when actual speed reaches below Zero Speed Designation Level (Pn316).
(Refer to Figure B)
3
Servo locks with position control upon zero speed designation input and when speed
command reaches below Zero Destination Level (Pn316). (Refer to Figure C)
ON OFF ON
Figure A
Speed command
Position control Position control Speed control
Zero speed designation input
Speed Command Acceleration/
Deceleration Setting
(Pn312, Pn313, Pn314)
ON OFF ON
Figure B
Speed command
Position control Position control Speed control
Actual motor speed
Pn316
Zero speed designation input
Speed Command Acceleration/
Deceleration Setting
(Pn312, Pn313, Pn314)