7 Manual Operation
7-6
NJ/NX-series CPU Unit Motion Control Userās Manual (W507)
Set the following axis parameters if you want to jog when home is not defined. The following setting
example is for a one-axis device.
*1 If there is more than one axis, a different variable name is set for each axis.
*2 If there is more than one axis, a different value is set for each axis.
*3 Set the node address to the same value as the node address that is set on the Servo Drive. If there is more
than one axis, a different value is set for each axis.
*4 The position command unit will be 1 Ī¼m.
*5 The maximum velocity will be 3,000 r/min = 30 m/min = 0.5 m/s = 500,000 Ī¼m/s.
*6 The maximum jog velocity will be 10% of the maximum velocity, i.e., 0.05 m/s = 50,000 Ī¼m/s.
*7 The maximum acceleration and the maximum deceleration are 5 m/s
2
. The acceleration time to the maximum
velocity (3,000 r/min) is 0.1 s.
This section describes the settings for the MC_MoveJog input variables Velocity (Target Velocity),
Acceleration (Acceleration Rate), and Deceleration (Deceleration Rate).
ā¢ For example, set Velocity to 30,000 to jog at a velocity of 0.03 m/s (30,000 Ī¼m/s).
ā¢ Set Acceleration and Deceleration to 3,000,000 to accelerate and decelerate at 3 m/s
2
(3,000,000
Ī¼m/s
2
).
7-3-2 Setting Axis Parameters
Parameter name Setting
Axis Variable Name
Axis1
*1
Axis Number
1
*2
Enabled Axes Used axis
Axis Use Servo axis
Input Device/Output Device
1
*3
Command Pulse Count Per Motor Rota-
tion
8,388,608
*4
Work Travel Distance Per Motor Rotation
10,000
*4
Software Limits Enabled for actual position
Unit of Display Ī¼m
Count Mode Linear Mode
Maximum Velocity
500,000
*5
Maximum Jog Velocity
50,000
*6
Maximum Acceleration
5,000,000
*7
Maximum Deceleration
5,000,000
*7
7-3-3 Setting Example for Input Variables
10 mm
1 rotation
Ball screw pitch: 10 mm
Ball screw
23 bits = 8,388,608
Encoder output pulses per motor rotation
Encoder resolution: 23 bits/rotation
Servomotor
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