Mitsubishi Electric MR-JE-*C Instruction Manual page 296

12. WHEN USING WITH A GENERAL-PURPOSE INTERFACE
(3) Automatic operation mode 2 (shortest rotating indexer)
This operation mode automatically changes a rotation direction to the shortest distance to execute
positioning to a station.
The positioning is executed by selecting a station No. using 8-bit devices of the DI0 (Next station No.
selection 1) to DI7 (Next station No. selection 8). For the servo motor speed and
acceleration/deceleration time constant during operation, the values set in the point tables are used.
(a) Device/parameter
Set input devices and parameters as follows:
Item
Selecting indexer method
Next station position
Automatic operation mode 2
(shortest rotating indexer)
selection
Servo motor speed
Acceleration time constant/
Deceleration time constant
(b) The other parameter setting (number of stations)
Set the number of stations with [Pr. PT28]. The setting is the same as that of automatic operation
mode 1. Refer to section 12.6.2 (2) (b) 2).
[Pr. PA14 Rotation direction selection] is not used in the automatic operation mode 2.
(c) Operation
Select a target station No. using 8-bit devices of the DI0 (Next station No. selection 1) to DI7 (Next
station No. selection 8) for positioning.
DI7 DI6
0 0
0 0
0 0
0 0
1 1
1 1
Note 1. 0: Off
1: On
2. [AL. 97.2 Next station position warning] will occur.
Device/parameter to be used
Control mode selection of [Pr. PA01]
DI0 (Next station No. selection 1) to DI7 (Next
station No. selection 8)
MD0 (Operation mode selection 1)
MD1 (Operation mode selection 2)
SIG (External limit/Rotation direction decision/
Automatic speed selection)
RT (Second acceleration/deceleration
selection)
Device (Note 1)
DI5 DI4 DI3
0 0 0
0 0 0
0 0 0
0 0 0
1 1 1
1 1 1
Select "_ _ _ 8" (positioning mode (indexer method)).
Set any next station No. (Refer to (3) (c) in this
section.)
Switch on MD0.
Switch on MD1.
The servo motor speed will be as follows.
Off: setting value of [Pr. PC05 Automatic operation
speed 1]
On: setting value of [Pr. PC06 Automatic operation
speed 2]
1. When RT is turned off
Acceleration time constant: setting value of [Pr.
PC01 Acceleration time constant 1]
Deceleration time constant: setting value of [Pr.
PC02 Deceleration time constant 1]
2. When RT is turned on
Acceleration time constant: setting value of [Pr.
PC30 Acceleration time constant 2]
Deceleration time constant: setting value of [Pr.
PC31 Deceleration time constant 2]
DI2 DI1
0 0
0 0
0 1
0 1
1 1
1 1
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Setting
Selection contents
DI0
0 Next station No. 0
1 Next station No. 1
0 Next station No. 2
1 Next station No. 3
0 Next station No. 254
Setting inhibited
1
(Note 2)