Mitsubishi Electronics MR-J3-T User Manual
4.4
Configuration for Positioning
If you install the MR-J3-D01 I/O expansion you can use point table positioning, which allows you
to select positions from a list of up to 256 table entries with a combination of eight digital inputs.
Table 4-3 shows how binary input signals are encoded to address the point table entries.
to select positions from a list of up to 256 table entries with a combination of eight digital inputs.
Table 4-3 shows how binary input signals are encoded to address the point table entries.
In the factory default configuration the incremental system is activated, which means that the
absolute position detection system is turned off (PA03 “absolute position detection system”).In
this mode the current position is not stored when the power is turned off and you must thus per-
form a home position return every time the amplifier is powered on. The default configuration
also uses absolute target positions (PA01 “positioning control mode”).
absolute position detection system is turned off (PA03 “absolute position detection system”).In
this mode the current position is not stored when the power is turned off and you must thus per-
form a home position return every time the amplifier is powered on. The default configuration
also uses absolute target positions (PA01 “positioning control mode”).
햲
To activate this parameter you must switch the amplifier power off and on again.
Positioning with Digital Inputs
Configuration for Positioning
MR-J3-T
4 - 23
Digital Input Signals
Selected Point
Table Entry
DI7
DI6
DI5
DI4
DI3
DI2
DI1
DI0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
1
0
2
0
0
0
0
0
0
1
1
3
0
0
0
0
0
1
0
0
4
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
1
1
1
1
1
1
1
0
254
1
1
1
1
1
1
1
1
255
Table 4-3: Selection of point table entries with digital input signals
No.
Code
Function
Description
PA01
햲
*STY
Positioning control
mode
mode
0: Absolute target position values
1: Incremental target position values
1: Incremental target position values
PA03
햲
*ABS
Absolute position
detection system
detection system
0: Incremental system (absolute detection off)
1: Absolute position detection system on
1: Absolute position detection system on
PA05
햲
*FTY
Feed length multi-
plication factor
plication factor
Needed here to scale the home position value to the physical coor-
dinate system when a home position offset (shift) has been set.
dinate system when a home position offset (shift) has been set.
Table 4-4: Parameter reference
Parameter
value
value
Multiplication
factor STM
factor STM
Range of the target
position values
position values
0
1
−
999.999 .. +999.999
1
10
−
9999.99 .. +9999.99
2
100
−
99999.9 .. +99999.9
3
1000
−
999999 .. +999999