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3. SIGNALS AND WIRING
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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 input terminal. Transmit signals from source
(open-collector) type transistor output, relay switch, etc.
V
CES
1.0 V
I
CEO
100 µA
Approximately
6.2 kΩ
DICOM
For transistor
Approximately
5 mA
TR
24 V DC ± 10%
300 mA
Switch
EM2,
etc.
Servo amplifier
(2) Digital output interface DO-1
This is a circuit of emitter output terminal of the output transistor. 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.
(Note) 24 V DC ± 10%
300 mA
If polarity of diode is
reversed, servo amplifier
will malfunction.
Servo amplifier
ALM,
etc.
Load
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.