Mitsubishi Electric MELSERVO-J4 MR-J4 A Series - Page 72

3. SIGNALS AND WIRING
3 - 31
The following example shows that an input waveform has been set to the negative logic and
forward/reverse rotation pulse trains by setting "0 0 1 0" in [Pr. PA13].
ㅒォᜰ઎ᤨᱜォᜰ઎ᤨ
(OFF)
(OFF) (OFF)
(ON) (ON)
(ON) (OFF) (ON) (OFF) (ON)
(OFF)
ᱜォࡄ࡞ࠬ೉
(
࠻࡜ࡦࠫࠬ࠲
)
ㅒォࡄ࡞ࠬ೉
(
࠻࡜ࡦࠫࠬ࠲
)
(ON)
2) Differential line driver type
Connect as follows.
PP
NP
ࠨ࡯ࡏࠕࡦࡊ
PG
NG
SD
⚂100䕑
⚂100䕑
(ᵈ)
Note. Pulse train input interface is comprised of a photocoupler.
Therefore, it may malfunction since a current is reduced when connect a resistance
to a pulse train signal line.
The following example shows that an input waveform has been set to the negative logic and
forward/reverse rotation pulse trains by setting "0 0 1 0" in [Pr. PA13]. The waveforms of PP, PG,
NP, and NG are based on LG.
ㅒォᤨ
PP
PG
NP
NG
ㅒォࡄ࡞ࠬ೉
ᱜォࡄ࡞ࠬ೉
ᱜォᤨ
Forward rotation pulse train (transistor)
Reverse rotation pulse train (transistor)
Forward rotation command
Reverse rotation command
Servo amplifier
A
pproximately
A
pproximately
(Note)
Forward rotation pulse train
Reverse rotation pulse train
Forward rotation command
Reverse rotation command