Position Control; Outline Of Position Control - Mitsubishi Electric FR-E700EX Instruction Manual

Position control

4.5

Position control

Purpose
To perform simple position control by
setting parameters
To perform stop operation under
position control
To perform more accurate
positioning
To select the home position return
method under position control
To relate the position command to
actual travel distance
To improve the precision of the
position control
4.5.1

Outline of position control

Under position control, a speed command is calculated to eliminate the difference between the position command and
the current position for rotating the motor.
The position control is available when an MM-GKR motor is used.
(1) Position control specifications
Item
Position command input method
Interface
Number of points
Command data setting
Command
range
method
Command setting
method
Electronic gear ratio
Home position return method
Motor internal command resolution
Positioning accuracy
Other positioning functions
 Turning OFF the power or the SON signal (LX signal) eliminates the home position. After turning ON the power or the SON signal (LX signal), always perform
the home position return. (For the roll feed, the home position return operation is not required.)
88
Parameter position
command
Position control sudden
stop and stroke end
Stopper control function
Position control home
position return
Electronic gear settings
Settings of the
positioning adjustment
parameters
Position control gain
adjustment
Speed control gain
adjustment
Point table method
Input terminal selection, RS-485 communication, CC-Link communication (plug-in option)
7 points
-99999999 to 99999999
Absolute position command with sign, increment command with sign
1/900 to 900
Data set type, stopper type, ignore the home position (servo-ON position home position), count
type with front end reference
5120 [kpulses/rev]
1.8° (Mechanical angle: Equivalent to the resolution of 200 [pulses/rev])
Sudden stop function, stroke end detection function, roll feed mode, JOG operation, stopper
control function, pulse monitor selection function, position control rotation direction selection
function
Parameter to set
Pr.4 to Pr.6, Pr.24 to Pr.27,
Pr.465 to Pr.478, Pr.525 to Pr.531,
Pr.537, Pr.578 to Pr.591
Pr.464, Pr.535
Pr.512 to Pr.515
Pr.110, Pr.111, Pr.453, Pr.455,
Pr.508, Pr.509, Pr.532 to Pr.534
Pr.420, Pr.421
Pr.426, Pr.506, Pr.507, Pr.510,
Pr.511, Pr.536
Pr.422, Pr.423, Pr.427, Pr.446,
Pr.463, Pr.698, Pr.877
Pr.820, Pr.821
Specifications
Refer to page
95
100
102
104
108
109
92
80