Omron NJ501-1300, User Manual

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5 Motion Control Parameters
5-18
NJ-series CPU Unit Motion Control User’s Manual (W507)
*1 The position command unit will be 1
µ
m.
*2 The maximum velocity will be 3,000 r/min = 30 m/min = 0.5 m/s = 500,000
µ
m/s.
*3 The maximum jog velocity will be 10% of the maximum velocity, i.e., 0.05 m/s = 50,000
µ
m/s.
*4 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.
*5 Set a positioning that is within the movable range of the device. The positive software limit is set to 50 cm =
500,000
µ
m.
The following example is for a device that uses the actual position of axis 2 (an encoder), which is
attached to a conveyor, as the master axis. The Servo Drive on axis 1 is synchronized within a finite
range.
Software Limits Immediate stop for command posi-
tion Immediate stop for command posi-
tion
Positive Software Limit
500,000
*5 500,000
Negative Software Limit
0
*5 0
Count Mode Linear Mode Linear Mode
Synchronized Control with Encoder as Master Axis
Parameter name
Settings
Axis 1 Axis 2
Axis Variable Name Axis1 Axis2
Axis Number 1 2
Enabled Axes Used Axis Used Axis
Axis Type Servo axis Encoder axis
Node Address (input device) 1 2
Unit of Display
µ
m
*1
µ
m
*1
Command Pulse Count Per Motor Rota-
tion 1,048,576 1,048,576
Work Travel Distance Per Motor Rotation 10,000 10,000
Maximum Velocity
500,000
*2
---
Maximum Jog Velocity
50,000
*3
---
Maximum Acceleration
5,000,000
*4
---
Maximum Deceleration
5,000,000
*4
---
Software Limits Immediate stop for command
position Disabled.
Parameter name
Settings
Axis 1 Axis 2
MC Function Module
Command position
Axis 1
Axis 2
Gear
ratio
Axis 1
Servo
Drive
Servo-
motor
Encoder
Encoder
Axis 1: Servo axis (slave axis)
Axis 2: Encoder axis (master axis)
Gear ratio
Actual position
Actual position