Mitsubishi Electric MR-JE-*C Instruction Manual page 276

12. WHEN USING WITH A GENERAL-PURPOSE INTERFACE
b) Incremental value command method ([Pr. PT01] = _ _ _ 1)
While the servo motor is stopped under servo-on state, switching on ST1 (Forward rotation
start) or ST2 (Reverse rotation start) starts the automatic positioning operation.
The following shows the timing chart.
MD0
(Operation mode
selection 1)
SON (Servo-on)
ST1
(Forward rotation start)
ST2
(Reverse rotation start)
Point table No.
Servo motor speed
INP (In-position)
CPO (Rough match)
MEND
(Travel completion)
PT0 (Point table No.
output 1) to PT7 (Point
table No. output 8)
(Note 2)
RD (Ready)
ALM (Malfunction)
M code output (Note 3)
Note 1. The detection of external input signals is delayed only by the time set in the input filter setting of [Pr. PD29].
Considering the output signal sequence from the controller and change in signal variations due to hardware,
configure a sequence that changes the point table selection earlier.
2. Up to four points of DO are available; therefore, PT0 to PT7 cannot be outputted simultaneously.
3. M code can be read with M code actual value (2D6Ah).
2) Automatic continuous positioning operation
By selecting a point table and switching on ST1 (Forward rotation start) or ST2 (Reverse rotation
start), the operation can be performed in accordance with the point tables having consecutive
numbers.
a) Absolute value command method ([Pr. PT01] = _ _ _ 0)
Refer to section 7.4 (1) (b) 1) for details. When referring, replace the wording as follows.
Target point table
Controlword bit 4 (New set-point)
Point actual value
ON
OFF
ON
OFF
(Note 1)
ON
3 ms or longer
OFF
ON
5 ms or longer
OFF
3 ms or shorter
Forward
rotation
0 r/min
Reverse
rotation
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Before replacing
12 - 61
3 ms or longer
5 ms or longer
1
Point table No. 1
M code of point table No. 1
Point table No. to select
ST1 (Forward rotation start)
PT0 (Point table No. output 1) to PT7 (Point table No.
output 8)
2
Point table No. 2
1
After replacing
2