Mitsubishi Electronics MR-J2M-P8B Manuale Utente

3 -  7

3. SIGNALS AND WIRING

(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 3.2.2.
Refer to this section and connect the interfaces with the external equipment.

(a) Digital input interface DI-1

Give a signal with a relay or open collector transistor.

V

CES

    1.0V

I 

CE0

    100   A

Interface unit

R: Approx. 4.7k

24VDC
200mA or more VIN

EM1

SG

Switch

For transistor

Approx. 5mA

TR

(b) 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

VIN

MBR

SG

24VDC

Interface unit

Load

10%

Opposite polarity of diode
will fail interface unit.