Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 522

11. MR-D01 EXTENSION I/O UNIT
(5) Source I/O interface
In this servo amplifier, source type I/O interfaces can be used.
(a) Digital input interface DI-1
This is an input circuit in which the anode of the photocoupler is the input terminal. Transmit signals
from a source (open-collector) type transistor output, relay switch, etc.
(b) 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
Approximately 24 V DC ± 10%
5 mA
800 mA
≤ 1.0 V
V
CES
≤ 100 µA
I
CEO
MR-D01
INP
etc.
DOCOMD
(Note) 24 V DC ± 10%
Note. If the voltage drop (maximum of 2.6 V) interferes with the relay operation, apply a
high voltage (maximum of 26.4 V) from an external source.
11 - 59
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MR-D01
SON
etc.
Approx.
5.6 kΩ
DOCOMD
If polarity of diode is
reversed, servo amplifier
will malfunction.
Load
800 mA