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3. SIGNALS AND WIRING
3.6.2 Detailed description of the 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. 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 (6) of this
section.
For use of internal power supply For use of external power supply
Servo amplifier
VDD
COM
24VDC
SGTR
R: Approx. 4.7k
SON, etc.
(Note)
For a transistor
Approx. 5mA
V
CES 1.0V
I
CEO
100 A
Switch
COM
SG
Switch
SON, etc.
24VDC
200mA or more
R: Approx. 4.7k
VDD
24VDC
Do not connect
VDD-COM.
Servo amplifier
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) A maximum of 2.6V voltage drop occurs in the servo amplifier.
(a) Inductive load
For use of internal power supply For use of external power supply
COM
ALM, etc
SG
Load
Servo amplifier
VDD
24VDC
If the diode is not
connected as shown,
the servo amplifier
will be damaged.
COM
ALM, etc
SG
Load
Servo amplifier
VDD
24VDC
If the diode is not
connected as shown,
the servo amplifier
will be damaged.
Do not connect
VDD-COM.
(Note)
24VDC
10%
Note. If the voltage drop (maximum of 2.6V) interferes with the
relay operation, apply high voltage (up to 26.4V) from
external source.