42
(Note) /NEAR signal needs to be distributed. It can be set to Pn510=n.
X (distribution of positioning complete output (/NEAR)
signal) and distributed to terminals.
Position the setting of NEAR output amplitude.
In Pn524 (NEAR Signal Amplitude), the condition for outputting the positioning proximity output (/NEAR) signal
(positioning proximity amplitude) is set. The /NEAR signal is output when the difference between the
command position and the current position (position deviation = deviation counter value) is less than the set
value of Pn524.
Pn524
NEAR signal amplitude
Speed
Position
Torque
Setting range
Setting Unit
Factory setting
Effective time
Category
0
~
1073741824
1 Command unit
1073741824
Effective
immediately
Setup
(Note) Generally, please set it to a value greater than Pn522 (positioning completion amplitude).
6.1.10 Speed limit function during torque control
The function of limiting the speed of a servo motor in order to protect machinery.
During torque control, the servo motor will be controlled in the form of output command torque, but the motor
speed will not be controlled. Therefore, if a command torque greater than the mechanical side torque is input,
the motor speed will be greatly increased. In this case, the speed must be limited by this function.
(Note) According to the load condition of the motor, there will be a certain gap between the limited speed of the motor and the set
value.
Speed limit detection output (/VLT) signal
The output signal of the motor speed after being limited is as follows.
Type
Signal
name
Connector pin number
Signal status
Meaning
Output
/VLT
Distribution required
ON (closed)
Motor speed limitated
OFF (OFF)
Motor speed is not limited
(Note) /VLT signal needs to be distributed. It can be set to Pn50F=n.
X
(distribution of speed limitation output (/VLT) signal) and
distributed to terminals.
Selection of Speed Limit Value
The speed limit value is set via Pn002 = n.
X
(torque limit option). When set to Pn.002=n.
1
(external speed limit function), the smaller of the external speed limit value and the internal speed limit value is
valid.
Parameter
Meaning
Effective
time
Category
Pn002
n.
0
Appointment Parameters (Do Not Set)
Power
restart
Setup
n.
1
[Factory
setting]
The speed limit value of torque control (VLIM command) is
used as the speed limit value.
(External Speed Limit Function)
◆
Internal speed limit function
The limit value of the motor speed is set by Pn407 (speed limit during torque control).
Speed
Location deviation
/NEAR signal
Command
Motor speed
Time
Time
Time
(ON (Closed) Valid)
/COIN signal
Time
(ON (Closed) Valid)
Time
Time
Speed
Speed
Maximum speed
Limited speed
Overspeed may cause
mechanical damage!
Limit the speed, you
can rest assured!
Unlimited speed
Limited speed