Mitsubishi MR-JE-100A, Инструкция по эксплуатации

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5. HOW TO USE THE PROGRAM
5 - 57
5.4.12 Dogless Z-phase reference home position return type
A position, which is shifted to by the home position shift distance from a position specified by the Z-phase
pulse right after the start of the home position return, is set as the home position.
(1) Device/parameter
Set input devices and parameters as follows:
Item Device/parameter to be used Setting
Automatic operation mode of
the program method
MD0 (Operation mode selection 1) Switch on MD0.
Dogless Z-phase reference
home position return
[Pr. PT04]
_ _ _ A: Select the dogless type (Z-phase
reference).
Home position return
direction
[Pr. PT04]
Refer to section 5.4.1 (2) to select the home
position return direction.
Dog input polarity [Pr. PT29]
Refer to section 5.4.1 (2) to select the dog input
polarity.
Home position return speed [Pr. PT05]
Set the rotation speed specified until a dog is
detected.
Creep speed [Pr. PT06]
Set the rotation speed specified after a dog is
detected.
Home position shift distance [Pr. PT07]
Set this to shift the home position, which is
specified by the Z-phase signal.
Acceleration time constant of
home position return
[Pr. PC30]
The acceleration time constant set for [Pr. PC30]
is used.
Deceleration time constant of
home position return
[Pr. PC31]
The deceleration time constant set for [Pr. PC31]
is used.
Home position return position
data
[Pr. PT08]
Set the current position when the home position
return completed.
Program
DI0 (Program No. selection 1) to
DI3 (Program No. selection 4) Select a program containing a "ZRT" command,
which performs the home position return.
(2) Timing chart
The following shows a timing chart after a program containing a "ZRT" command is selected.
ON
OFF
MEND (Travel completion)
ON
OFF
CPO (Rough match)
ON
OFF
Servo motor speed
MD0
(Operation mode selection 1)
Reverse rotation
0 r/min
Forward rotation
ON
OFF
Z-phase
ZP
(Home position return completion)
ON
OFF
ON
OFF
ON
OFF
ST1 (Forward rotation start)
ST2 (Reverse rotation start)
3 ms or shorter
Deceleration time constant
5 ms or longer
Acceleration
time constant Home position return speed
Home position shift distance
Creep speed
PED (Position end)
ON
OFF
Home position return
position data
The setting value of [Pr. PT08 Home position return position data] is used as the position address at the
home position return completion.