Mitsubishi Electric MELSERVO-J4 MR-J4 A Series - Page 94

3. SIGNALS AND WIRING
3 - 53
(3) Pulse train input interface DI-2
Give a pulse train signal in the differential line driver type or open-collector type.
(a) Differential line driver type
1) Interface
SD
PG(NG)
PP(NP)
ᦨᄢ౉ജࡄ࡞ࠬ
๟ᵄᢙ 4Mpps(ᵈ2)
ࠨ࡯ࡏࠕࡦࡊ
Am26LS31⋧ᒰ
⚂100䕑
V
OH
: 2.5V
V
OL
: 0.5VV
(ᵈ1)
10mએ
Note 1.
2.
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.
When the input pulse frequency is 4 Mpps, set [Pr. PA13] to "_ 0 _ _".
2) Input pulse condition
0.9
0.1
tc tLH
tc tHL
tF
PP PG
NP NG
tLH = tHL < 50ns
tc > 75ns
tF > 3μs
(b) Open-collector type
1) Interface
⚂1.2k䕑
ࠨ࡯ࡏࠕࡦࡊ
DC24V
OPC
PP㧘NP
DOCOM
SD
ᦨᄢ౉ജࡄ࡞ࠬ
๟ᵄᢙ 200kpps
2mએ
(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.
24 V DC
Servo amplifier
Max. input pulse frequency
4 Mpps (Note 2)
App
roximatel
y
(Note 1)
10 m or shorter
A
m26LS31 or equivalent
Servo amplifier
Max. input pulse
frequency 200 kpps
App
roximatel
y
(Note)
2 m or shorter