Source I/O Interfaces - Mitsubishi Electric MR-J4-10B(-RJ) Instruction Manual

3. SIGNALS AND WIRING

3.8.3 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 whose photocoupler anode side 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, current will be applied from the output to a load.
A maximum of 2.6 V voltage drop occurs in the servo amplifier.
For transistor
TR Switch
Approximately 24 V DC ± 10%
5 mA
300 mA
V 1.0 V
CES
I 100 µA
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.
3 - 38
Servo amplifier
EM2,
etc.
Approximately
6.2 kΩ
DICOM
If polarity of diode is
reversed, servo amplifier
will malfunction.
Load
(Note) 24 V DC ± 10%
300 mA