7. OPERATION OF THE DIGITAL OPERATOR

The standard type digital operator is modified so as to be used easily by minimizing key opera- tions. Data can be set simply.

7.1 Names of Parts

POWER Lamp

Monitor (LED display)

This display shows frequency, motor current, motor revolution speed, and Trip history

Power lamp of control circuit

 

 

FUNC.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FUNC (Function) key

 

 

 

 

 

 

Up key, Down key

This key is used for changing

 

 

 

 

 

 

These keys are used to

commands. When pressing

RUN

STOP/RESET

change data and increase

key after setting data and

 

 

 

 

 

 

or decrease the frequency.

 

 

 

 

 

 

parameter, they are automati-

 

 

 

 

 

 

 

 

cally memorized.

 

 

 

 

STOP/RESET key

 

 

 

 

 

RUN key

 

 

 

 

This key is used for stopping the motor or

 

 

 

 

 

resetting errors.

 

 

 

This key is used for starting. (When

 

 

(When either operator or terminal is se-

 

terminal run is selected, this key does

lected, this key works. If the extension

 

not work.)

 

 

 

 

function is used, this function is void.)

WARNING

lThe STOP/RESET key works only when a function is set. Prepare an emergency switch separately. The use of the STOP/RESET key as an emergency switch may cause an injury.

7.2Operation Procedure

(Example that the frequency is set and the equipment starts running)

 

Display after

Press the FUNC

Press the 1

Press the FUNC key once

power is turned

on

key once.

key five times.

and set the frequency by using

 

 

 

the

1 and 2 keys.

.

.

(Frequency

monitor)

 

 

 

 

 

 

Start

 

 

 

 

 

 

 

 

 

 

 

 

run

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Press the

FUNC

 

When selecting the monitor Press

 

 

 

RUN

 

key once.

 

 

mode, press 1

and 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to display

 

 

 

.

 

 

 

 

The frequency which is

set by the FUNC key is stored.

7-1

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Image 41
Hitachi J300U Series Operation of the Digital Operator, Power Lamp Monitor LED display, Func Function key Up key, Down key