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

13. USING STO FUNCTION

13.4.2 Source I/O interface

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 5.2 V voltage drop occurs in the servo amplifier.
(a) When outputting two STO states by using each TOFB
(b) When outputting two STO states by using one TOFB
Switch
TR
Approx. 5 mA 24 V DC ± 10%
V 1.0 V 300 mA
CES
I 100 µA
CEO
Servo amplifier
TOFB1
TOFCOM
TOFB2
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.
Servo amplifier
TOFB1
TOFCOM
TOFB2
Note. If the voltage drop (maximum of 5.2 V) interferes with the relay operation, apply high
voltage (maximum of 26.4 V) from external source.
13 - 14
Servo amplifier
STO1
STO2
Approx. 3.0 kΩ
STOCOM
If polarity of diode is
reversed, servo amplifier
Load
will malfunction.
(Note)
24 V DC ± 10%
300 mA
Load
If polarity of diode is
reversed, servo amplifier
Load
will malfunction.
(Note)
24 V DC ± 10%
300 mA