Mitsubishi Electric MELSERVO-JN Series Instruction Manual page 423

13. POSITIONING MODE
2) Conveyor setting example
0.001 is set to be 1 μm.
Machine specifications
Table : 360 /rev
Reduction ratio : 1/n=P
P : Pulley diameter on servo motor side
1
P : Pulley diameter on load side
2
Number of virtual pulses per revolution: 36000 [pulse/rev]
CMX 36000
=
CDV  
(4) Selection of servo motor rotation direction
No. Symbol
PA14 *POL Rotation direction selection
Select the servo motor rotation direction when the forward rotation start (ST1) or reverse rotation direction
(ST2) is turned ON.
Parameter No. PA14 setting
0
1
ST1: ON
CCW
/P =625/12544
1 2
36000
=
625/12544  360  1000
POINT
In the linear or rotary operation, setting the following values in the number of
virtual pulses per revolution (parameter No. PA05) simplifies the setting
values of the electronic gear (parameter No. PA06, PA07).
Liner operation: 100 (10000[pulse/rev])
Rotary operation: 360 (36000[pulse/rev])
Parameter
Name
POINT
This parameter is made valid when power is switched off, then on after
setting.
In program method, ST2 can be used only for JOG operation in the test mode.
Forward rotation start (ST1) ON
CCW rotation
(address incremented)
(address incremented.)
CW
ST2: ON
Parameter No. PA14: 0
6272
=
3125
Servo motor rotation direction
CW rotation
ST2: ON
CCW
13 - 72
Number of virtual pulses per
revolution of servo motor
36000[pulse/rev]
Timing belt: 625/12544
Initial value Setting range
0 0, 1
Reverse rotation start (ST2) ON
CW rotation
(address decremented)
CCW rotation
(address decremented)
CW
ST1: ON
Parameter No. PA14: 1
Table
Unit