Detailed Explanation Of Interfaces - Mitsubishi Electric MR-J5 Series User Manual

8.4

Detailed explanation of interfaces

This section provides the details of the I/O signal interfaces (refer to the I/O division in the table) as follows. Refer to this
section and make connection with external devices.
Page 218 STO I/O signal connector (CN8) and pin assignment
Sink I/O interface
Digital input interface DI-1
This is an input circuit in which photocoupler cathode side is input terminal. Transmit signals from sink (open-collector) type
transistor output, relay switch, etc.
For transistor
Approx. 5 mA
Switch
TR
V ≤ 1.0 V
CES
I ≤ 100 μA
CEO
Digital output interface DO-1
This is a circuit in which the collector of the output transistor is the output terminal. When the output transistor is turned on, the
current flows from the collector terminal.
A lamp, relay, or photocoupler can be driven. Install a diode (D) for an inductive load, or install an inrush current suppressing
resistor (R) for a lamp load.
(Rated current: 40 mA or less, maximum current: 50 mA or less, inrush current: 100 mA or less) A maximum of 5.2 V voltage
drop occurs in the servo amplifier.
■When outputting each of two STO states by using each TOFB
Servo amplifier
TOFCOM
*1 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.
8 USING STO FUNCTION [G] [A]
222
8.4 Detailed explanation of interfaces
Servo amplifier
STO1
STO2
Approx. 3.0 kΩ
STOCOM
24 V DC ± 10 %
300 mA
TOFB1
Load
*1
24 V DC ± 10 %
300 mA
Load
TOFB2
If polarity of diode is
reversed, servo amplifier
will malfunction.