YASKAWA Varispeed-606PC3 Manual de instrucciones descargar pdf (Pagina 151)

2

.

DIGITAL

OPERATOR

(JVOP-114)

(Cont'd)

Protective

Function

Over-

load

Protec-

tion

Motor

Inverter

External

Fault

Signal

Input

Control

Circuit

Fault

t

Error

Causes

Overload,

long

operation

at

low

speed,

improper

V/f

characteristic

setting

.

Motor

rated

current



[constant

(No

.

19)]



setting

is

wrong

.

Over-



Check

the

use

of

machine

.

torque



Motor

current

exceeds

the preset



Correct

the

overload

cause

or

set

Detec-



value

because

of

machine

error

or



a

higher

detection

level



[constant

lion*



overload

.



(No

.

41)]



which

is

within

the

allowable

range

.

External

fault

condition

occurred

.

.

External

nose

Excess

vibration or

shock

Acton

to

be

Taken

Investigate

the

cause

of

over-

load

and

review the

operation

pattern,

V/f

characteristic,

and

motor/inverter

capacities

.

(If

inverter

is

repeatedly

reset

after

an

overload

occurs,

the

inverter

may

fault

.

Investigate

and

correct

the

cause

of

overload

before

restart

.)

.

Set

:

the

rated

current

of

motor

nameplate

value

to

constant

(No

.

19)

.

If

the

above measures

are

not

effective,

lower

the

carver

frequency [constant

(No

43)]

Correct

the

cause

of

the

fault

input

.

Record

all

data

of



C

PF

ii'

then

make

initialization

.

Turn

OFF

power,

then

turn

ON

again

.

If

an

error

is

persistent,

mplace

the

inverter

.

*

For

overtorque

detection (OL3),

fault

display

or

alarm

display

can be

selected

according

to

the

constant

(No

.

40)

setting

.

For

details,

refer

to

"OVERTORQUE

DETECTION

FUNCTION"

on

page 124

.

t

For

details

of

control

circuit faults,

refer

to

Table

1

9

"Details

of

CPF

Display"

on

page

49

.

P,-,

,~,



to

#'

-

'

S

indicate

the

contents

of

digital

operator

display

1 2 ... 146 147 148 149 150 151 152 153 154 155 156 157

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