UX-258TH

FO-475TH

2. Description

2-1. Relay board unit

1.Remove the TEL/LIU PWB, control PWB and Power Supply PWB from this unit, and mount the relay board unit instead.

Before connecting the wiring to the relay board unit, set the test PWB switches to the fixed position.

2.The setting is as follows.

 

The relay cables are used as one pair.

Relay

The sensor is wired as shown in the following figure.

cable

The door swich and hook switch are manually operated.

12

CNLIUA

1

CNPW

CHECK CONTROL PWB

CNLIU

TEL/LIU PWB

POWER SUPPLY PWB

The recording paper sensor (PSNS) is operated by OR of the mechani- cal unit switch and the test PWB switch. When performing installation in the machine unit, set the test PWB switches to the fixed position.

 

Mechanical unit

PWB to be tested

 

Actual operation with mechanical unit

Recording paper

ON/OFF operation

OFF (Photo interrupter

sensor

 

is interrupted.)

 

PWB sensor check

 

Recording paper

OFF

ON/OFF operation

sensor

 

 

 

 

 

CHECK

TEL/LIU

NOTE

DON'T SEPARATE

UNIT

RELAY CABLE

EXTENSION PWB

CONTROL

PWB

DOOR

SENSOR

PWB

TP2(+5V)

TP1(DG)

TP3

(PSNS)

POWER SUPPLY PWB

C K

TP3

(PSNS)

E A

These cables are connected from the extension board and the checked control PWB at TP1 thru TP3 (signals of DG, +5V and PSNS).

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Sharp UX-258TH, FO-475TH manual Description Relay board unit, Off