Interfaces - Mitsubishi Electric MELSERVO-J2 Series Instruction Manual

3. SIGNALS AND WIRING

3.6 Interfaces

This section gives the details of the I/O signal interfaces (refer to I/O Division in the table) indicated in
Sections 3.3.2 and 3.3.3.
Refer to this section and connect the interfaces with the external equipment.
(1) Digital input interface DI-1
Give a signal with a relay or open collector transistor.
Source input is also possible. Refer to (5) in this section.
(Note)
For a transistor
Approx. 5mA
V
CES
I
CEO
Note: This also applies to the use of the external power supply.
(2) Digital output interface DO-1
A lamp, relay or photocoupler can be driven. Provide a diode (D) for an inductive load, or an inrush
current suppressing resister (R) for a lamp load. (Permissible current: 40mA or less, inrush current:
100mA or less)
1) Inductive load
Servo amplifier
24VDC
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For use of internal power supply
Servo amplifier
24VDC
VDD
R: Approx. 4.7k
COM
SON, etc.
Switch
TR
SG
1.0V
100 A
For use of internal power supply
VDD
COM
Load
ALM, etc.
If the diode is not
SG
connected as shown,
the servo amplifier
will be damaged.
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For use of external power supply
Do not connect
VDD-COM.
24VDC
200mA or more
Switch
For use of external power supply
Servo amplifier
VDD
COM
ALM, etc.
SG
3 - 17
Servo amplifier
VDD
R: Approx. 4.7k
COM
SON, etc.
SG
Do not connect
VDD-COM.
Load 27VDC or
less
If the diode is not
connected as shown,
the servo amplifier
will be damaged.