Mitsubishi FREQROL-SFJ User manual

r‘

LiC

SPINDLE

DRl.i/E

. . . .

.,.

-SFJ

*’

MAINTENANCE -MANUAL

BNP-A282 l-02-A-E

ADVANCED AND EVER ADVANCING

n/lmJBlsHl

ELEcTmc

-CO.NTENTS-

GENERAL

1.1

Introduction

1.2

Safety during

maitenance

and troubleshooting

1.3

Storage

2. WIRING

2.1

External wiring

2.2

Parts arrangement

3. ADJUSTMENT

3.i

Preliminary check

3.2

Power feeding

3.3 FR-SFJ status display and parameter settings

3.3.1 (A) Status display and parameter setting

for ROM version A

3.3.2

(B)

Status display and parameter setting

for ROM versions after BO

3.4 Spindle control monitor on NC CRT dispaly

when FR-SFJ is connected to M300 CNC

through bus line

3.5 Spindle control monitor on NC CRT display

when FR-SFJ is not connected to M300

CNC through bus line

3.6 Test operation

3.7 Adjustment of motor speed

3.8 Adjustment of oriented spindle stop function

3.9 Parameter list

4. CARD SETTINGS AND CHECK TERMINALS

4.1

Card SFJ-CA1

4.2

Card SF-ORJ

4.3

Card SF-TLJ

4.4 Card SF-DAJ

5. ADDITION AND REPLACEMENT OF COMPONENT

5.1 Addition of option card (SF-ORJ, SF-DAJ and

SF-TLJ)

5.2 Replacement of card

5.3 Replacement of ROM

5.4 Replacement of diode moduie and transistor

module

. . . . .

5.5 Disassembly and assembly of SJ-J type AC spin-

dle motor

1/2-

INSTALLATICN OF ORIENTED SPINDLE STOP POSITION

DETECTOR

6.1 Magnesensor l-point oriented spindle stop

DISCHARGE RESISTOR UNIT

TROUBLESHOOTING

a.1

General information

,a.2

First step of troubleshooting

a.3

Second step of troubleshooting

8.4 Alarm and warning table

a.5

"Alarm/warning"

display by LED readout

9. PERIODIC INSPECTION

9.1

Inspection of control equipment

9.2

Inspection of motor

9.3

Inspection of discharge resistor unit

10. PARTS LIST

. . . . .

115

116

. . . .

ii8

119

-2/2-

$1.

GENERAL

1.1

Introduction

AC spindle drive unit, FR-SFJ series, is the inverter use,?

to control a machine tool spindle drive AC motor.

It is capable of

contro.lling

widely ranged motor speeds ac-

curately and quietly.

Discharge resistors are

connectec

t-:

the drive unit to disperse regenerative energy for regenera-

tive braking of motor.

This manual mainly describes periodic maintenance and trou-

bleshooting which are very important to assure successful

use of your AC spindle

drive.unit.

1.2

Safety during

maitenance

and troubleshooting

The maintenance and troubleshooting should be done with the

following safety consideration:

o The control system should be maintained and remedied by

qualified electrician.

o When a person who maintains or remedy the control system

must touch a part of control system under live condition,

he should take off finger ring, wristwatch, necktie pin,

and other metallic goods before starting the work.

o Electric shock may cause fatal accident.

When a circuit at high voltage must be checked, due care

should be taken to select appropriate test/inspection

equipment, tools, etc.

and to use them safetly (no matter

whether or not the circuit is grounded).

When a test equipment is applied to a part, component, or

circuit of the unit,

operator should pay attention not to

touch a grounded part.

In general,

test equipment should not be grounded.

During test or measurement, it is likely that high voltage

is present across the test equipment and the ground.

When motor is run during adjustment or remedy, due care

should be taken in this respect.

o Person who carries out maintenance or remedy of rotative

machinery should not wear loosely (otherwise loose wear

might be involved into the running machine.

o DO NOT TURN OFF THE POWER IMMEDIATELY AFTER OPERATION IS

TERMINATED.

THE UNIT SHOULD BE HELD TURNED ON FOR AT

LEAST 10 MIN.

FOR COOLING THE DISCHARGE RESISTOR UNIT

(BY COOLING FAN), AFTER THE OPERATION.

IF THE DRIVE UNIT IS TURNED OFF IMMEDIATELY AFTER THE

TERMINATION OF OPERATION, THE RESISTOR UNIT COOLING FAN

STOPS AND RESIDUAL HEAT, OF RESISTOR UNIT MIGHT CAUSE BURN-

ING OR DAMAGE TO OTHER COMPONENTS OF DRIVE UNIT.

o Do not touch the drive unit immediately after the opera-

tion is terminated (maintenance or remedy should be start-

ed in about 5 min. after the operation is terminated).

1.3

Storage

When your AC spindle drive unit is not used, store it in

clean and dry environment.

Note that humidity and dust entering into the control unit

may adversely affect insulation resistance of the drive unit.

When your, AC spindle drive unit is left out of operation for

any length of time, the same cautions should be taken.

It is recommended,

if the storage is humid, to use a heater

to keep the environment dry.

92.

WIRING

2.1

External wiring

2.1.1 Control system.where FR-SFJ is not connected

through bus line

a. Analog speed reference

signal

“““chins

rc*dy”

Input

FWd

r””

command

R.3” run

command

orlsnttd

eplndl*

atoP

commmd

I.“*-spewi

qsllr

select

“rdlum-specrl

genr

select

AUI

Input

Yir:

AUX.

input 2

C4I

“Up-to-speed”

st.m.1

O”tpUt

Zero

speed

output

5111”“1

“rlcntation

complete

(

In-po~ltIorl)

output

AUX.

output

*“I.

output 2

Is=_

M300

Nischarne

r-es

Digital speed reference signal (option card SF-DAJ is used)

Basic system composition

-;;I;

“VP-to-epee.9,

OUrpUt

aima,

“Zero

speed”

output

signal

tJr,entstion

ccmplett

(in-porrItIon~

signal

A”X.

O”Ip”t

A”X.

output 2

speed

meter

Lord

rnCtCr

‘SF-DAJ”

Note 1:

This input port is used for speed

reference signal selection

between “analog” and “digital”.

For details, refer to paragraph

3.1.2

“Auxiliary input signals”

in the Standard Specifications.

f---

c. Control system equipped with oriented spindle stop func-

tion

A circuit illustrated below is added to the basic system.

(1) Magnesensor type oriented spindle stop (1 point)

see-

cification

motor

speed feedback signal output)

(For spindle speed display/sync. feed

signal)

_---

---

Option card

‘SF-DA

1’

OI-

'SF-OHJ'

.!.

Maqnesensor

display/sync. feed signal

_____h

To NC

(A.B,Z

phases)

Pulse nu Number of pulses is

128/(reduction ratio).

detect

Magnesensor

(2)

Encoder type oriented spindle stop (4096

cification,

equipped with index function

+_----_--_T_~

points)

spe-

Option card

'SF-D41'

Oriented stop

position command

Speed display/sync. feed signal

To NC

(1024P/rev

A.B.2

phases)

detect signal

(3)

Z-phase controlled motor built-in encoder type ori-

ented spindle stop (4096 points) specification, equip-

ped with index function

Motor detector signal

_______----------

Option card

'iented

spindle

F-DA

1’

top

position

ed display/sync. feed signal

Tmmand

SF-OKJ'

-----hTo

(128P/rev

A,B,Z

phases)

2.1.2 Control system where FR-SFJ is connected to M300

,through

bus line (option card SF-TLJ is used)

FR-SF

J -2

$K-T

a. Basic system composition

Poker

supply

Connection is not

required for CON1

signal in usual

operation.

I/O signal assignment

CM300

series interface)

SRI

jY251~Y2DI

CNI

____

‘<

IVEIl

CNll7

‘<2

'SF-TL.J'

Ot-

'SF-RSJ'

CNlB

final axis

MR-S servo

amplifier

Rev

run Index

/Y255;Y2D5

ORC

lY256!Y2D6

BLS

*,.rm

“on”

jXIC3

X243

IXIC4/X244

lxlc5ix2451

ORA

/XlC61X246

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