Source I/O Interfaces - Mitsubishi Electric MELSERVO MR-J4-B-LL Series Instruction Manual

2. SIGNALS AND WIRING

2.5.3 Source I/O interfaces

In this servo amplifier, source type I/O interfaces can be used.
(1) Digital input interface DI-1
This is an input circuit in which the anode of the photocoupler is the input terminal. Transmit signals from
source (open-collector) type transistor output, relay switch, etc.
(2) Digital output interface DO-1
This is a circuit in which the emitter of the output transistor is the output terminal. When the output
transistor is turned on, the current will flow from the output terminal to a load.
A maximum of 2.6 V voltage drop occurs in the servo amplifier.
For transistor
TR Switch
24 V DC ± 10%
Approx. 5 mA
300 mA
≤ 1.0 V
V
CES
≤ 100 A
I
CEO
Servo amplifier
ALM,
etc.
DOCOM
Note. If the voltage drop (maximum of 2.6 V) interferes with the relay operation, apply high
voltage (maximum of 26.4 V) from external source.
2 - 14
Servo amplifier
EM2,
etc.
Approx. 6.2 kΩ
DICOM
If polarity of diode is
reversed, servo amplifier
will malfunction.
Load
(Note) 24 V DC ± 10%
300 mA