Mitsubishi Electric MELSERVO-J5 User Manual page 99

Digital output interface DO-1
This is a circuit in which the collector of the output transistor is the output terminal. When the output transistor is turned on, the
current flows to the collector terminal.
A lamp, relay, or photocoupler can be driven. Install a diode (D) for an inductive load, or install an inrush current suppressing
resistor (R) for a lamp load.
(Rated current: 40 mA or less, maximum current: 50 mA or less, inrush current: 100 mA or less) A maximum of 2.6 V voltage
drop occurs in the servo amplifier. The following connection diagram is for the sink output.
Servo amplifier
ALM
etc.
DOCOM
*1 If the voltage drop (a maximum of 2.6 V) interferes with the relay operation, apply high voltage (a maximum of 26.4 V) from an external
source.
*2 It is 500 mA for the MR-J5-_A_.
Refer to the following for the source output.
Page 100 Source I/O interface
Pulse train input interface DI-2 [A]
Give a pulse train signal in the differential line driver type or open-collector type.
■Differential line driver type
• Interface
10 m or less
PP (NP)
*1
PG (NG)
Am26LS31 or equivalent SD
V : 2.5 V
OH
V : 0.5 V
OL
*1 A photocoupler is used as the pulse train input interface. Therefore this circuit may not operate properly due to reduction in current if a
resistor is connected to the pulse train signal line.
*2 Set [Pr. PA13.2] to "0" to use the input pulse frequency of 4 Mpulses/s.
• Input pulse condition
tc
0.9
PP/PG
0.1
tc tLH
NP/NG
If polarity of diode is
reversed, servo amplifier
will malfunction.
Load
*1
24 V DC ± 10 %
*2
300 mA
Servo amplifier
Max. input pulse
*2
frequency 4 Mpulses/s
Approx. 100 Ω
tHL
tLH = tHL < 50 ns
tc > 75 ns
tF > 3 μs
tF
3 SIGNALS AND WIRING
3.6 Interface
3
97