Mitsubishi Z200-UL Instruction Manual

Thank you for your purchase of Mitsubishi Transistor inverter FREQ,ROL-2200.

r

r

r--

This inverter is a variable frequency power supply unit used to control a squirrel­cage induction motor.

IMPORTANT NOTE

This instruction manual describes handling, installation, operation and maintenance

of the inverter.

.Although it is easy to use the inverter,

cause unforeseen trouble. Before operating the inverter,

Your inverter is built to a high standard of quality and reliability.
Correct application and regular inspection,

operation.

-C 0 N T E N T S-

- INVERTER

HANDLING GUIDANCE

Q 1. CONSTRUCTICN
9 2. UNPACKING AND CHECKING
Q 3. INSTALLATION

3.1 Handling during transfer and installation

3.2 Environment

3.3 Mounting position and clearances

3.4 Inverter housed in enclosure

§ 4, WIRING

4.1 Main circuit

4.2 Control circuit

4.3 Terminals for wiring

4.4 Field wiring reference table

8 5. OPERATION

5.1 Operation modes

5.2 Pre-operation checks

5.3 Pre-operation settings and adjustments

5.4 Check points at test operation

8 6.

MAINTENANCE AND. INSPECTION

6.1 Caution for maintenance and inspection

6.2 Inspection points

improper

should give you long, trouble free,

use and mis-operation might

read this manual carefully.

\

...............

...............

...............

...............

...............

...............

...............

...............

...............

. . . . . . . . . . . . . . .

. . . . . . . . . . . . . . .

. . . . . . . . . . . . . . .

...............

...............

. . . . . . . . . . . . . . .

. . . . . . . . . . . . . . .

. . . . . . . . . . . . . . .

. . . . . . . . . . . . . . .

. . . . . . . . . . . . . . .

...............

...............

6
6
6’
7
8

8
12
15
17
20
20
20
21
24
27
27
27

_--

.._-*

--.

.’

6.3 Method of measuring main circuit voltage;
current and output power

6.4 Measuring instrument, selection and usage

6.5 Transistor modules and diode modules

6.6 Parts replacement

Q 7. TROUBLESHOOTING

7.1 Troubleshooting

7.2 Protective functions

Q 8: SPECIFICATIONS

8.1 Block diagram

8.2 Terminals

8.3 Standard specifications

8.4 External dimensions

8.5 Selection of peripheral devices

8.6 Drip shield kit

. .

8.7 Overload protection

.................. 51

................ 51

...

..... . ... . ... ..... ‘31

...............

............... 36

............... 38 -’

............... 46

.... ..*........ 46

...............

................ 53

............... 58

...............

............... 65

.

.

...............

............... 68

34

44

64

66

0

r PARAMETER UNIT

Q 1.. INSTALLATION
8 2. OUTLINE OF FUNCTIONS

1 Q 3. FUNCTION KEY DESCRIPTIONS

Q 4. OPERATION

4.1 Operation modes

4.2 Operation with external signals

4.3 Operation with PU

4.4 Common setting errors
see also Page 92

Q 5. SETTINGS OF CONTROL VARIABLES (PARAMETERS)

5.1 Control functions and setting method

5.2 Examples of operation

. .

5.3 Caution (iIlega1 settings)
8 6. MONITOR
$3 7. DISPLAY

7.1 Alarm display

7.2 Indicator lamps

7.3 Characters appearing in readout

9 8. LIST OF FUNCTIONS NUMBERS

..I

. .

. .

‘,

.,.’

.I

. . . . . . . . . . . . . . . 79

. . . . . . . . . . . . . . . 72

. . . . . . . . . . . . . . . 73

. . . . . . . . . . . . . . . 76

....... . ....... 76

............... 77

............... 78

. . . . . . . . . . . . . . .

: . . . . . . . . . . . . . . 83

.: . . . . . . . . . . . . . 83

. . . . . . .i. . . . . . .

. . . . . . . . . . . . . . . 87

.’

. . . . . . . . . . . . . . .

. . . . . . ...*. :...

. . . . . . . . . . . . . . .

. . . . . . * . . . . 1.;.

,,..,..........

. . . . . . . . . . . . . . .

I

Q

81

85

88

92
92
93
93

0

94

(-

‘-was-

g 9. DETAILS OF EACH FUNCTION
8 10. PARAMETER UNIT SPECIFICATIONS

§ll. EXTERNAL DIMENSIONS AND CABLE DETAILS

. . . . . . . . . . . . . . . 97

. . . . . . . . . . . . . . .

. . . . . . . . . . . . . . .

112

113

1 HANDLING GUIDANCE 1

Improper use and operation might cause unforeseen trouble. Betore using your
inverter, please read this manual carefully to operate inverter for long time
without trouble.

No-fuse
breaker

(NPB)

Magnetic

contactor

(MC)

AC reactor for
power factor
enhancement

,

INSI’ALLATION
OF I.VVERTRIZ

Rl?MOVAL AND
INSI’ALLATION
OF PRONT

MONITOR

When the icvcrtcr is connected close LO a lurgc-

capwily lwwcr supply (Ins than 1Om wiring distonw

lrom IOOOkVA or lorgcr power supply) , bc sure 1.0
inscrl. an AC reactor (option) inlo Lhc power input ciwuit.

When the invortcr is located, coasidcr the in&mu, 111

ambirnt temperature on the life of invcrtcr. I.ocutc the

invcrlcr. whcrc the ambient temperaturn is within l.hc

speGic~d range.

Refer

I -

1.0 8.3

Refer lo 93. ‘lNSThLLA1’ION”.

The cover of models smallcr than llkW/2OOV and
7SkW/4OOV can be easily removed and installed without
using u LOOI (screwdriver)

Refer to 1.2 ‘Removal and installation of front cover”.

Output frequency, voltage, motor current and alarm are
dbplaycd by 7-segment LED readout.

Rdcr LO 9 6. ‘MONlTOR”.
Rofcr to 8 7. “DISPLAY”.

” Standard specifications .

/

7

J

A

Mom

time wn bc set by using the paramctcr unit.

Not+ that mixwiring not only ~1~80s damogc to the
invcrtrr, but also cndongers the operator.

Refer lo I) 4. ‘WIRING”.
Refer LO 8.2 “Terminals’.
Refer to 4.3 “Terminals Ior wiring”.

‘DEVICES CONNlGI’I’E:D ‘I’0 OUTPUT CIRCUIT

Do not connect power Tactor correcting capacitor, surbw killer or n&c
filter FR-RIP (oplion) .

\.

\

J

8 1. CONSTRUCTION

1.1 External views and name of each part

.FR-2220-0.4K(~)-11K0, FR-Z240-2.2K(P)-7.5KCP)

Chassis heatsink
(die cast)

, Rating plate

- ALARM indicator lamp

. POWER lamp

- LED Readout

- Parameter unit
(For models having no parameter

unit. an accessory cov*r is
installed hem.)

~~ -

FRONT VIEW

Discharge resistor for brake
(regenerative brake r&i&or)

0

\f--

BACK VIEW

l

FR-Z220-15K-55K, FR-Z240-llK-55K

(For FR-Z220-0.4K)

3

- POWER. atid ALARM indicator lamps

- A-ory cover (made of steel)
When a parameter unit is used,
remove this cover and .instaU
the paraineter unit.

0

f-

/

1..2 Removal and installation of front cover
(FR-Z220-0.4K--11 K, FR-Z240-2.2K-7.5K)

How to remove the front cover (see Fig. 1 ) :
While pressing the white button at the top of the inverter, ease the cover

. . . ..3 .

forward and lift the plastic top cover

from the bottom location sockets.

How to attach the front cover (see Fig. 2 ) :
Insert the lugs at the bottom of the front cover into the sockets at the

chassis bottom and press the cover lightly against the chassis. Ensure white
button engages securely.

Inverter having no parameter unit is

equipped with an accessory cover. The

accessory cover can be removed by pulling it to the front while holding

the side wall lightly (Fig. 3 ) .

Fig. 1 Removal of front cover

Fig.

2 Installation of front cover

Fig. 3 Removal of access cover

CAUTION: 1 . After the front cover is installed, make sure it is held in

position securely,

2, The rating plate is stuck on. the front cover. Do not attach

the cover to another invertor.

3. When the parameter unit was removed for removal of the

r

--.

front cover, be sure to install it as instructed in 1.3.

-3-

1.3 Removal and installation of parameter unit
How to remove the parameter unit (Fig. 4 > : i

Remove two parameter unit mounting screws and ease the unit forward.

How to install the parameter unit:
Put the plug (connector) of the para-

meter unit into the connector of the
inverter.
While holding the parameter unit in

position, tighten two mounting screws.

(Do not over-tighten)

CAUTION: never install the parame-

ter unit to the inverter
with the front cover re­moved.

If the inverter must be operated with

‘the front covw removed always use

the extension cable. See page 113.

Connector

hc%ptacle)

Fig. 4 Removal and installation

of parameter unit

0

-4-

0

b 2. UNPACKING AND CHECKING

After unpacking the inverter, check the following points.
(11 Check the rating plate on the front cover of inverter to make sure the

model and output ratings meet your order.

(21 Check that the inverter has not been damaged during transportation.

Report damage immediately.

a > To the carrier b > To the inverter supplier

Invc&r model
Applicable motor

Line voltage and

Serial k

pcz@iJ-

I

SylllbOl

zm
2240

Volta@ clam

2OOV 0.4
4OOV 55 of LW. NOM

Pig. 5 Rating plate

INVERTER MODEL DESIGNATION.

FR-224003.7KP-UL

L < yI+-%q

KILOWATT

SpllbOl

Appl=bb

motor c8pacity

capacity k

akoun in Wnm

SyUlbOI

P Providad

ParalMtw unit

Nona

-5-

8 3. INSTALLATION

3.1 Handling during unpacking and installation
Carefully handle the inverter when it is transferred and installed.
When the inverter is carried, do not hold it in such a manner that force
is exerted on only the front panel.

3.2 Environment
(1) Place the inverter in a clean and well-ventilated location.

Do not install the inverter . in direct sunlight, high temperature, high humi­dity, dense dust, corrosive gases, or hazardous areas.
If the inverter must .be used in an environment where dense dust or
corrosive gas arises, house it in an enclosure which does not allow
entrance of dust or gas. ..

Note: When the inverter is ..hous&d : in an enclosure, a suitable cooling

means should be used and/or the enclosure should be designed so
that temperature . around the inverter. do& not exceed the specified

“ambient t temperature“ listed under paragrapo 8.3.

(2) Install

(31 Cover the top and the bottom of the unit with drip shield kits (option)

when an inverter is wall-mounted. (See page 66)
Do not install the drip shield kits when the unit is mounted within
another cabinet.

3.3 Mounting position and- clearances
(1) Install

“FREQROL-Z200” face front.

th e inverter in a vibration free location.

th e inverter securely and vertically with bolts so that the letters

.

0

(2) Since the inverter generates heat, provide sufficient clearance around the

inverter to assure effective radiation of heat.

(31 When braking is repeated frequently, the surface temperature of the brake

discharge resistor (for models under FR-Z220/Z240-?.5K) , mounted at the
rear of the inverter, may become high (maximum approx. 150°C) .
Therefore, install the inverter on a non-flammable panel (such as metal
plate) .

-6-

.,

p

.,-

r

‘W

--- ----

1Wmm ( 4 ‘1 or mGre

0

FREQROL-2200

1OOmm (4”) or more 1OOmm (4”) or more

Fig. 6 Minimum clearance around inverter

CONSIDERATION FOR AMBIENT TEMPERATURE

The life time of the inverter depends on

I?

or mot-c

spaces to aaun spaces to aaun
good cooling effect. good cooling effect.

I

i

In*lw* In*lw*

Air stream r Air stream r

2 2

AA,: AA,:

1: / 1: /

/ /
0 0

/ /
/ /
/ /
I I

/ /

the ambient temperature. The ambient
temperature should not exceed the permis­sive value.

50mm (2’ 1

5Omm

(2’

)

Moamwing point

Measure the ambient temperature at the
positions shown in figure A.

Fig. A

Permissive ambient temperature: +5O”c (+ 122°F)

3.4 Inverter housed in enclosure
When two or more. inverters are housed in an enclosure equipped with a
fan, locate each inverter and fan so that the maximum cooling efficiency
can be achieved.

I--"1

i

Iawtter 1

II

lpeD i

r‘

(GOOD) (WRONG)

Two or more inverters housed in an enclosure

-?-

(GOOD)

(WRONG)

Location of ventilating fan

Q 4. WIRING

4.1 Main circuit.
(1) Connection to power source and motor

For models FR-%220-0.4K to 1.5K

For models larger than

PR-Z220-2.2K and Z240-2.2K

I I I

Power supply

* When the inverter is connected as

clockwise, as viewed from the load side, with “forward” (normal) command
signal.

shown above, the motor runs counber-

Power supply

0

IMPORTANT
Notes: 1 .

-._ _ ..-

--.- _ . --

------

2. The inverter is not equipped with a” means to. protect persons

-from .acci&nts due to leakage. ‘. .

DCJ not

directly because such miswiring n~ay cause not only damage

the inverter, but also danger to the operator.
The same danger ..may be caused by backflow of current if the
invorter is connected as shown below. To prevent backflow, MC 1
and MC 2 .should be interlocked with each other (electrically as
well as m&hanically) .

Pay attention so that cables do not touch the. chassis, etc.

‘connect power supply to the output terminals (II, V, W)

L __...____. _. ..__ ---. .-- ---- .--

Lo

-._ . _._.- -

-..-_

:’

_ .-

0

‘Be’ sure to earth the inverter with the earth terminal.

- 8 --

0

r

3. If magnetic contactor (MC) is not inserted on the inverter primary
side and a power failure occurs for a short time (instantaneous
power failure) ,
time as the power source is restored.

If it is likbly that this automatic restart may cause damage to
the machine or persinnel, connect .(MC> so that restart is possible
only after’ safety is verified.

For a better understanding, refer to the following diagrams and

descriptions:
Para. 4.3 “Wiring diagram”

Para. 8.2 “Terminals for wiring”
Para: 8.1 “Block diagram”

the inverter will restart automatically at the same

(-

-.I

- CAUTION FOR WIRING OF PERIPHERAL DEVICES
When MC, NFB and other peripheral devices are being connected to the

inverter, cover the inverter to prevent wire chips, screws and other foreign
matter from entering into the inverter through slits and other openings of
the inverter.

(21 Connection of discharge resistor for increased braking (regenerative brake

resistor unit ****** option)

A built-in discharge resistor is been connected to terminals P and PR

-internally, .as standard. ’

However when braking operation is particularly frequent and may exceed
the thermal capacity of the built-in resistor, replace the built-in discharge
resistor with optional discharge resistor unit.
Apply this option with care, due to increased heat losses which have to
be dissipated.

- 9.’

Do not connect any resistor other than those specified by us, to
terminals P and PR.

-

--* I3

(3)

Connection of BU type .brake unit (option)

BU type braka unit

\

Yh

LT

?

>

-J

MYS

type

resistor for

(option)

0

discharge

brake

.’ Note: Wires used to connect discharge resistor(s) and BU type brake

unit to the inverter should be less than 2 m (5 m when twisted
wires are used) .

(41 Connection of control circuit power supply, independent of main circuit

If the magnetic contactor (MC) on the inverter input power supply side is
opened when a protective device is activated, the inverter control circuit
is also turned off and the alarm signal (output signal) is no longer held.

0

I

0

-lO-

To hold alarm signal, the inverter control circuit should be fed with an
independent power supply as shown below.

r

‘v

‘For models FR-Z220-0.4K to 1.5K

RrmOW

these
jumpers.

Main ‘povJk

control oircuit

power supply

For models larger than FR-Z220-2.2K and Z240-2.2K

CON

6

from

tennina RI and Sl.

Control circuit power

.Main power circuit

SuPPlY

-ll-

4.2 Control circuit
(1) Input signal circuits

0

c_( Current input DC4 - 20mA

-< Auxiliary input DC 0 - +lOV 1OV

darn4 if terminal

10 is connected to

Check the wiring

A B C FM SD 10 2 5 4

SE RUN SU IPF OL FU RL RM RH RT AU STOPMRS RES SD

Frequency reference

(2W 1KQ)

1 K 1 E SD STF STR JoG

___( Apxiliary input DC0 - f 5 V SV

CS SD

uzl

Multi-speed selection

This terminal is available in models larger than FR-Z220-15K
and FR-Z240-11K. Use it for
power failure”, or for

0 Restart after instantaneous power failure ****** Short-circuit

between terminals CS and SD.

0 Commercial power/inverter select ***-** Use a circuit which

closes the MC inserted on the inverter output side and
at the same time short-circuit between terminals CS and

SD.

“commercial power/inverter select “.

-12-

“restart after instantaneous

.O

For details, refer to the technical information.

*2. STOP terminal

This terminal can be used to hold “start” signal.

1

’ f-

Note:

1 . Terminals SD and 5 are common terminals for input/output

signals, and insulated from each other.

,Do not connect these terminals to ground.

2. For signal wires connected to control circuit terminals of
inverter, use shielded wires or twisted wires.
These wires should be separated from cables for the main
circuit and high-voltage circuits (including 200V relay sequence
circuit) .

3. The speed reference signal is a faint current. To prevent mis­contact, use two parallel connections of faint signal contacts or
twin contacts.

-13-

(21 Output signal circuits

Alarm signal output
(IC contactoutput)

.

Open collector output

Frequency nieter
( 1 mA full scale)

(1/3W lOKn>

Y

0

This potentiometer
when meter ie calibrated on parameter

(for method of calibration. refer. to

8 5. ‘SETTING OF EACH PARAMETER “.>

/

is not required

0

- SIGNAL INPUT BY SEMICONDUCTOR SWITCH

A semiconductor can be used, instead of contacts (relay, switch, etc.) , to
generate an input signal.

0 Applicable input signal terminals

All input signals except for
analog input signals ( 2, 5 , 4,

1 K and 1 E) (see the circuit

diagram on page 12) .

l

Electric characters required for
transistor

IC1 lOOmA
VCEZ 50V

Note: For details, refer to the relevant technical information.

(Wiring example)

A--

0

-14-

4.3 Terminals for wiring

Concontrd circuit terminal block

U VW N PPR

- Control circuit terminal block

Screw sizes

rc/

f=====jpqm

. TBl

Control circuit terminal block

(M51m w ,Mp

e+ CM51

v

(M4) (M4)

TB2

TB3

TB4

‘Jumper

.RSTUVWN

PPRZA

R S ‘T U V W N 1 PPRz;i

CM51

e+

(M4)

­J

-Control circuit tanninal block

TBl Tti2

screw sizes

Inverter model

TBl TB2 TB3

FR-Z240-llK, 15K M6

-22K M6 M5 M5

-3OK

-37K M8 M6 M5

-45K, 55K M8 M8 MS

Factory

use

(M5>

e+

(M4) (M4)

M 5

MS

M6 M6 MS

(M4)

c1

wc Faxse

TB3

TB4

TB5
M3.5 M6
M3.5 M6
M3.5 M 6
M3.5 M 8

GND terminal

M6
M6
M6
M8

M3.5 M8 M8

Jumper

TB4

Factory

ua?

0

CONTROL CIRCWT TERMINAL BLOCK ****+* Common to all models

(except

for Rl. Sl aid CS)

SE RUN SU IPF OL FU RL qM -RH -RT AU STOP

-16-

MRS RES SD

(+-

-

4.4 Field wiring reference table
For screw torque, crimping terminals and crimping tools, refer to the following table.

Note ( * 1) Manufacturer: AMP INCORPORATED, HARRISBURG, PA 17105

PHONE: [phone] TWX: 510-657- 4

( * 2 > Use copper wire only

Inverter model

l

FR-2220-15K

FR-2220-22K

FR-Z220-30K

Note: Terminal block location is shown in page 15.

TB1,2,4 70

TB3 13 32968 59239 AWGlO 75°C

TB1,2,4 70

TB3 13 32968 59239 AWGlO 75°C

TB1,2,4 70 EY: ;rr& 9 r$d AWGl/O 75°C

TB3 23 322153

2-;;;%;;-3 Hy9i70pl AWG4 75°C

48754- 1

E;; H%:7??

48755-l

328526 69325-3

Head
Dies

48756- 1

Hyg;70;l

322005

Dies

48753- 1

- Dies

AWG2 75°C

- 326896 Dies

69066

AWG6 75°C

-17-

Inverter model

Screw torque

Terminal (Pound Crimping Crimping

block

Na

-Inch) terminals tools

Crimping terminals type Wire size and temp-rating

and tool type ( *

1)

(* 2)

0

Size temp-rating

FR-2220-37K

FR-Z220-45K TB1,2,4 131

FR-Z220-55K TB1,2,4 219

TB1,2,4

TB3 23

TB3 23

TB3

131

23

322094 Foot Operated AWGS/O 75°C
;E!

322153 AWG6 75°C
322010

Ei
322601 69325-3
324196 Head

E;

322254 Foot Operated 300MCM 75°C

Ei

Power Unit

69325-3

Head

69066

Dies

48758-l

Hygi70p1
Dies

48753- 1

Foot Operated AWG4/0
Power Unit

69066

Dies

48759-l

Hygi70y1 AWG6 75°C
Dies -

48753-l

Power Unit

69325-3

Head

69060

Dies

48816

Hygi70;l AWG6
Dies -

48753- 1

75°C

75°C

0

Note: Terminal block location is shown in page 15.

Inverter model

Note: Terminal block location is shown in page 16.

-18-

Inverter model

Screw torque

Crimping terminals type Wire size and temp-ratink

and tool type (*

Terminal (Pound Crimping

block

Na

-Inch) terminals tools

1)

(*2>

Crimping Size temp-rating

FR-Z240-11K TB1,5

40 322049 Hand tool AWG8

FR-ZZQO-15K

23

FR-Z240-22K

TB2,3

TB1,5 40

TB2,3 23

FR-Z240-30K ,TB1,2,5 40

TB3

FR-Z240-37K

TB1,5 70

TB2

?3

FR-Z240-45K TB1,2,5

TB3

FR-Z240-55K TB1,2,5

TB3

23

40

23

70

23

70

23

59974- 1

%E

Dies

48752- 1

Hand tool AWG8

Et!

59974-l
322002 Dies
322154

322051

48752-l

H”5”g&f;’

w Dies

48753-l

Hygi70~l AWG6

;I%

Dies

3;
322051

48753- 1

Hagngdg7F;l AWG6

%2 Dies -

48753-l
E%!

H”5”9d97;P’
Dies

;Ei;
E;i

48753- 1

Hyg;7~p1

322013 Dies

48755-l
EfE

7%7?P’
Dies -

x;
EE!i

322153

48755-l

“%$72’
Dies -

322005 48753-l

Ha;lgdgorl AWGZ
;;;:;;
322013 Dies -

48755- 1

Hsgngdg70yl AWG6

Ei!!

Dies
EE

48753-l

Foot rated AWGl/O

EE

77

Power nit

328526 69325-3

Head

69066

Dies

48756-l

Hand tool AWG6 75°C
!Ei!l
322153
322005

59974-l

Dies

48753-l

AWG6

AWG2

AWG2

AWG6

75°C

75°C

75°C

75°C

75°C

75°C

75°C

75°C

75°C

75°C

Note: Terminal block location is shown in page 16.

-19-

(2) Check that

(31 Check that h t s or -circuit and earth fault do not exist in the output circuit.

(4) Check that all screws, terminals and other fasteners. are tight.

CAUTION FOR INSULATION RESISTANCE TEST WITH MEGGER

th

ere is no short-circuit due to wire offcut, etc.

r

0 For insulation resistance test with megger, refer to Q 6 . 6.2, (3).

0 Never apply the test voltage to the control circuit terminals and across

the inverter terminals.

5.3 Pi-e-operation settings and adjustments

The inverter itself does not have control devices to set or adjust by operator,

(-

--

such as select switch and potentiometer. (As with previous models of FREQROL)

When settings (accelation/deceleration time, electronic thermal relay setting, etc.)
must be changed, the parameter unit (FR-PUO 1 > is used (for the initial settings,
refer to chapter

For methods of changing parameter setting, refer to the description “HANDLING
AND OPERATIGN OF PARAMETER UNIT”. (p. 69 - p. 113)

98.1.

r

-

-2l-

SETTING TABLE

Acceleration/

deceleration

time

Maximam .output

frequency

Description

When the inverter is shipped, acceleration/
deceleration time is set to 5 sec. for models P. 99
smaller than
larger than
The time setting can be changed on the
parameter unit.

Acceleration/deceleration time is the time in
which the inverter output frequency becomes
equal to the frequency at
reference signal voltage.

0

For operation with external signals

When the inverter is shipped, the maximum

7.5K,

and to 15 sec. for models

11K.

5 V of frequency

Refer to

P. 83

P. 83
P. 97

0

Electronic

thermal relay

inverter output frequency is set as follows:

---

6OHz

0

Voltage signal

0

Current signal

Maximam

changed by changing “frequency at 5 V
frequency reference input signal (or at 20mA
frequency reference signal)

0

For operation with parameter unit

The maximum output frequency can be
increased up to the maximum frequency
limit (set to
shipped) .

Setting should be based on current ‘value (at

50Hz)

indicated on the nameplate of the motor.

output frequency setting can be

--+-*- 60Hz

120Hz

when the inverter is

at DC 5 V (or

at

“.

DC20mA

lOV>

P. 83
P. 97

0

0

-22-

--..-.. ,.. .-. I. -.. . . . . . . . . - “._. I.. ., ,,

Description Refer to

4

*“c -...... --- .-

Frequency reference
input signal signal source is

When an analog signa from an external

used as a speed ‘reference

(for . operation signal, the signal voltage range can be

with analog signal)

specified (up to DC 5 V or DClOV) by changing

engagement of “input signal select” connector

(CON5 > on the P.C. board.

When a potentiometer is connected to terminals

10, 2 and 5 directly, however, engagement of

the connector is not required to be changed.

. 1”’ operation with

SIgnal Of DC O

;/f (;:,;yf (

tO

S V

For operation with

l

sipa] of DC0 b. 1OV

Frequency meter

calibration

Note: The inverter cannot be operated if the

connector is not engaged.

0 Operation with current signal (DC4 - 20mA)

DC current (DC4

- 20mA) is applicable when
terminal AU is connected to terminal SD.
See page 12.

The frequency meter can be calibrated from P. 83
the parameter unit (without use of potentiometer
for calibration) .

-23-

5.4 Check points at test operation

After making sure the inverter start signal is off (for operation with
external signals) ,

(MC) on the inverter primary side.

Perform a test operation to check the sequence is in accordance with

the following description:

When external signals are

. . . . . . . . .

used

The inverter automatically

close the no-fuse breaker (NFB) and magnetic contactor

Turn on the power

When the parameter unit Refer to the
is used

w

Press m key to make operative the

********‘. The pilot lamp (yellow)

on the inverter front
panel turns on.

. . . . . . . . . 9

‘I

description

“Handling and
operation of
parameter unit”

(p. 69 - p. 113)

0

becomes ready for operation
with external signals when
the power is turned on.

Turn on forward or reverse
start signal (switch) .

0

Turn the frequency reference
potentiometer little by little
clockwise until it stops.

(motor now at full speed)

parameter unit.

0 For direct setting

Enter the desired output frequency
by operating numerical keys of
parameter unit and then press

key.

0 For analog setting

Press m key to increase frequency
to the desired
output frequency and then press

-1 key. (Note * ’

pizeiq

0

-24-

-0

0

Press I[ or @%$ key

(“MONITOR” function becomes

applicable automatically) .

.$g*

8-r:

ad

s
4

6

Turn the frequency reference Press -1 key. (Note 2,
potentiometer little by little
counter-clockwise to “zero”
position. (motor now stopped)

Change of frequency is not displayed if the parameter unit is not set
in “MONITOR” mode.

(Note 1) As the frequency displayed by the readout of parameter unit

increases, the motor speed increases.

(Note 2 > As the frequency displayed by the readout of parameter unit

decreases, the motor speed decreases.
When the output frequency reaches the “DC brake operating

1

:

L*

frequency”, the DC dynamic brake is activated and the motor
is stopped immediately (refer to “CAUTION” described below) .

f-

Check points:
(1) Check that the motor rotates in correct direction (for relationship

between motor phase sequence and direction of rotatiom, refer to

chapter 8 4. WIRING.)

(2)

Check that the motor does not generate unusual hums or vibration.

(3) Check that change of output frequency is displayed correctly.

(4) Check if “ALARM” lamp lights during acceleration or deceleration

(inverter trip) . If it lights, perform the following check:

l

Check if load is too heavy.

0 Increase acceleration/deceleration time.

-

l

Reduce amount of boost.

-25-

CAUTION:
(11 If the forward (STF) and reverse (STR) start signals turn on at the same ’

time, the inverter will not start. If these signals turn on simultaneously
during operation, the motor is decelerated (the inverter output frequency
decreases) to a stop. _ .

(2) Durpng deceleration, the DC dynamic brake is actuated for 0.5 seconds when

the inverter output frequency decreases to less than the DC brake frequency

(below the start frequency, when speed reference signal voltage (or current)
is reduced gradually) .
During this DC dynamic braking period, the motor may generate a high-

pitched hum, but this is not a failure, nor a sign of trouble. This is
normal during DC braking.

(31, If “ALARM” lamp lights and the motor stops after coasting, check that the

motor has stopped completely and then reset the inveyter to shut off the

power, using the reset terminal.

0

0

.:

-26-

r

0

8 6. MAINTENANCE AND INSPECTION

f-

%me-

The inverter is a piece of static equipment consisting mainly of semiconduct-

or elements.

To prevemt trouble with the inverter, due to high temperature, humidity, dust,
intense vibration, component deterioration, etc., it is very important to perform
periodic inspection.

6.1 Caution for maintenance and inspection

(1) Operator must check whether, power supply is ON or OFF by himself

to prevent misoperation by others.

(2) After the power

voltage for a while.

Before making an pnspection, check that the CHARGE lamp on the P.C.
board is off, and voltage across the inverter main circuit terminals P

is switched ’ off, the capacitor remains charged at high

and N is below DC30V, using a multimeter, etc.

6.2 Inspection points

This invertey is equipped with the power pilot lamp and error (alarm)
display function. .
It is advisable that you familiarize yourself with the error display definitions.

Also note the normal settings of the electronic thermal relay, acceleration/
deceleration time, etc.

(1) Daily inspection

During daily operation, check the following:
(a) The motor operates properly.
(b) The environment is normal.
(cl The cooling system is normal.
(d) There is no unusual vibration and noise.

r

i-l

(e) There is no overheat and discoloration in any component of the

inverter .

-n-

During operation, check inverter input/output voltage with a multimeter.

(2) Periodic inspection

Check the followings periodically with the inverter stopped:

(a) Check that the cooling system is in good condition.

Clean air filters, etc.

(b) Screws, bolts, nuts and other fasteners may become loose with time,

due to vibration, thermal expansion/retraction, etc.
Retighten loose screws or other fasteners.

(c) Check if conductors and insulators are not corroded. or damaged.

(d) Measure insukation resistances.

(e) Check the cooling fan, smoothing capacitor, contactors and relays for

condition.

0

Table 2 shows the standard daily and periodic inspection schedule.

(3) Insulation resistance test with megger

(a) Before checking insulation resistances of the external circuits with a

megger, disconnect wires (cables) from all inverter terminals so that
test voltage is not applied to the inverter circuits.

(b) Conduct the insulation resistance test on the inverter main circuit

only, as shown in Fig. 7.
Do not conduct the test on the control circuit of inverter.

(c) To check the control circuits for continuity, use a multimeter (high

resistance range> .
Do not use a megger or buzzer to check.

,

0

-28-

I

Ground trrminsl

-m-m-)

---VW

Motor

Fig. 7

Insulation resistance test with megger

Check

ammeter.

Point

Environnlwt

Gwwr*l ’

Whole rquipmont

supply voltage

Gmwd

Conductor. ublr

Tarmind block
Trrndstor module

Main circuit

t

:antrol circuit Operation chtok
WOtUtiW
:imuit

phi

mm

Dirplry

Motor

Diode module

Smoothing

AaIry. contactor

Rrirtor

CodInS fan

Dirplay

Meter

Guwral

Insulation rrrirtatwa

Checking Item

I

rpwity

Table 2 Daily and periodic inspection schedule

Dwcrlption

Check ambient temperature, humidity, dust.
etc.

/

Chmk that thrra ir no unutud vibration and O
noita.

Check that main circuit and control voltaS*
ore normal.

(11 Check with meggw (across main circuit

and ground tbrminal) .

(2) Chock that fastenad parts.rre not loom.

13) Chock that porta hrw no owrhut trau.

14) Clwn.
(1) Check that conductor is not dietort&.

(21 Chack that cable rhuth i# not broken.
Chnk for damago.
Check mist~nce acroa ah orminrls.

(1) Chack tar lukap of rlactrdytt.
(2) chuk

thr

‘3) Mwwn notit copuity.
(1) Chock for tramor.

(2i Cheek for contact roughen.
(1) Check for resistor insulator crack.

12) Check for wlrr break.

(1) Chrck output voltaga balmtea across wch

phases without motor.

(2) After nquana prouetiw operation tact.

chuk that protutlw and die& chita

should k normal.

(1) Cheek for unwtal vibration and noln.

(2)

Chuk that wmutlon h not loon.

(3) Ghan rlr flltar.
{:I Eh$ that Iamy have not blown.

Chack that wading Is corract. 0

(1) Check for unusual vibration and noisr.
(21 Chrcl: for unusurf rmrll.

(1) Check with nuggw (-roes batch trrmin-

elr and ground terminal) .

wfety VdW.

Inwrter

Dally .

0

O

8

0
0
0 (1) Panel indicator Iampc. (1) Clean that lamp light.

Periodic

1 ywr 2 year

Rnhr to cautions on paga 6. Ambirnt temperature -1O’c to +SaC (+14f Thrrmomrar.

Visual and auditory chock@. Should k normal.

Measure voltage (Iwo* inwrtrr terminal Mock 0 180 - 220; l:E 1 440:; ZO:
torminrlr R. 8 and T.

0 0

8

8

0

0 ment8.

8

8

0

0

0 (2) Should b normal.

0 (2) Clrrn with cloth.

HI Dlmomwct tha invutrr and mnrrure (1) 6M OHM or larger.

(2) Fasttm.
(1) (2) Visual ahack. (1) (21 should bb normal.

Viruel &ask. Should k normal.

0

Di@connect thr inwrtw and mratun resist­anca mron hrmlnals R.S.T and P. N and
awon U. V. W and P. N with a multjmrtw
by 1 OHM ron~r

(1) (21 Vi8ual thack.
(3) Mea~un with capacity measuring instru- (3) 85% or man of rated wpacity.

(1) Auditory check. (II Should br normal.
(2) Visual c&k.

(1) Vl8url ahack (Ceramic rrsictor. wound R­(2) Disconnect lrad on one sldr and measure

(1) Mearun volteg* acrow inwrtw output
(2) Simulativaly rhort-clreult the lnv&

(1) Switch poww off and turn by h&d. (1) Should turn wnwthly8
(2) Ratighan.

(II Chak panel meter reading.

(1) Auditory. tactile and visual checks. (1) (2J Should k normal.
(21 Check for unusual #mrll due to overheat,

(1) Clbl,nnwt U. V and W. Includrc motor

0

Chocking Method

to +122’F) ; No frnxing.
Ambirnt humidity SOURH or lass: No con&­nrlng.

l 180 -

rrlstana across batch of terminals (2) (3) Should k normal.
R. S. T, LJ. V, W and around terminal with
mwg9.r.

sirtor. 9tc) .
with multim#rr.

twmlnalo U. V and W.
Alarm rlgnal output.

dsmsgr etc.

(3) Visual Chock.

Refer to Table 7-4.

(1) 0) Should k normal.

(21 Should k normal.
(1) Should k normal.

(2) ;~ti;~uld k within f10% of sceified multimater

(1) Voltage balona for 2OSV (4OOV) should

br wlthin 4V (8V) .

(2) Alarm &cult rhould k actuated.

(1) Should satisfy specified and control

VSIVU.

(1) Should ba 6M OHM or larger. MH)V mm

Judgment

Meaalurinp
lnstrumrnt

hygrometer.
rnordrr

multimeter
digital multimater

WOV mwgtr

An&S multimeter

Capwitor meter

Multjmmr. Digital

Digital multimrtrr.
rutlfior typ volt­meter

-

Voltmeter,
etc.

-_

0

.

0

/ . 1.x. . ..^.

i..____-

_

-

6.3 Method of measuring main circuit voltage, current and output power

(1) Method of measuring voltage and current

Since the inverter power supply (input) , output voltage and current include

* high-harmonic components, date (measurement results) depend on instrument

and circuit used in measurement.

To measure voltafe and current with an instrument for commercial
frequency application, use the instrument in accordance with Table 3, and

the circuit shown .in Fig. 8.

3 -phase

power
SUPPlY

Input

VOltage

VwAi

Av

1 )
1

To

Output
voltage

output

current

motor

Fig. 8 Measuring points and instruments

Table 3 Measuring points and measuring instruments

Measuring point Instrument

Line voltage

VI

Input current

11

Input power

P*

Input power

factor .

Pf,

Output voltage Across U and V,

VZ

Across R and S,
S and T, and T
and R

R, S and T line - Moving-iron

current
On R, S and T,

and across R and
S, and S and T

To be calculated from the equation shown below. after
line voltage, input current and input power and measured.

Pf, = &P1* I, X 100%

I

V and W, and W (moving-iron phases is * 1% or
and U

Remarks

(Criterion)

Moving-iron

c

type

c

type
Electrodynamic P*=W,, + WI?

8

type

’ Rectifier type Difference between

t

type is not less of maximum
acceptable) output voltage.

Commercial voltage

0 180 - 22OV

(360 --i 44OV)

50Hz

0 180 - 253V

(360 - 506V)

60Hz

0

0

Output current U, V and W line

I* current

Output power

PZ

Output power

factor

Converter output Across P and N

and across U
and V, and ,V

and W

: To be calculated from the equation shown below

Pf, = &IZ. I* X 100%

Moving-iron Current should be

c

type

type .

a Moving-coil

type (suoh
as multimeter)

equal to or less
than inverter rated
current.
Difference between
phases is 10% or
less.

Pz = wn + wtr On .U, V and W, e Electrodynamic

POWER lamp should

light.

1.35 X VI
Max. voltage during
regenerative braking
380v (73OV)

0

-32-

r

-

Measuring point

Frequency reference

signal Across 1 K and 5.

Across 2 and 5 _ n Moving-coil DC O.- 5V/O -lOV G E
Across 1 E and 5 multimeter) DC0

Across 4 and 5 (Min. internal DC 4 - 20mA

Instrument

type (such as

resistance:

5Okohm)

Remarks

(Criterion)

,DCO -klOV E

-+5v

8
5

:
m
:

Frequency indicator

signal

Start signal Across STF, STR,
Mode select
signal RT or AU and SD

Reset signal Across RES and SD

Output halt

signal

Base current
shutoff signal

Error alarm

signal

Across FM and SD D Moving-coil

RH, RM, RL, JOG/OH,

Across MRS and SD

Across A and C @) Moving-coil Continuity check
Across B and C

About DC5V at
type (such as max. output
multimeter)

(Min. internal when frequency

resistance: meter is connected 5

50kohm)

@), Moving-coil DC20 - 30V

type (such as when opened, k
multimeter) 1 V or less cy

(Min: intermal when closed

resistance:

50kohm)

type (such as ~Normal or power
multimeter)

frequency

supply OFF
A-C: Open
B - C: Closed

0 Error condition

A - C: Closed
B-C: Open

b

1

g

8

f-

-

-33-

6.4 Mesuring instrument selection and usage

To observe the condition of insulation, voltage, current, signal level, waveform,

etc., select an adequate instrument and use it in accordance with the
following description:

(1) Measurements on main circuit

The measurements include power supply and output voltages and

current measurements, load (motor) continuity check, insulation check,
voltage and current waveform observation.

The followings are particularly important to be checked carefully with
the specified instrument(s):

0 Multfmeter

For continuity check with a multimeter, be careful of sneak path

0

circuit. Do not make continuity check for the inverter circuit transistor
module with the motor connected, and for the converter circuit diode
module with the power connected.

Make continuity check only for components to be checked with the
wiring to other components disconnected.

@ Voltmeter and ammeter

The input power supply voltage is sine-wave of the commercial
frequency. To measure the input voltage, any appropriate instrument
may be used.

Since the input and output current waveforms include various high­harmonic components, use a moving-iron type ammeter, as it indicates

values in r.m.s., to measure the input and output currents.

0

To measure the output voltage, use a rectifier type voltmeter because
it reads nearly the basic wave

which is used as the reference value of torque generated by the motor.

component of the voltage waveform

0

-_l__l___- II ..-..--- “.--“” ._..* - -..-... .._, ,.,..,_ ., ,

, . I...+

Anyway, it is important’ to record the instruments used and measurement
results, and to always use the same instruments at inspection.

0 Oscilloscope

To measure high voltage (4OOV or higher) , insulate the power supply
of oscilloscope and use a high-voltage probe or insulate the point to
be measured with a potential transformer or current transformer.
In the latter case, the potential transformer or current transformer
should have a capacity large enough to prevent magnetic saturation.

(21 Measurements on control circuits

The measurements on control circuits include measurements of frequency
reference signal, inverter

control voltage and observation of waveforms.

For accurate measurement, note the followings:

@ Voltage measurement and waveform observation

Since the currents of these signals are

faint and the impedances of

the circuits are high, use an instrument, input resistance of which is
as high as possible (lOOkohm to

1 Megohm) .

It is recommended to use a digital multimeter or oscilloscope in the
measurements.
Since input resistance of multimeter set in a low range is significantly
low, value read by multimeter may be lower than the true value.

0 Common line connection

f-

“,-

Connect the common terminal of instrument to an optimum point of
circuit (i.e. the common point nearest to the point measured) .

@ Instrument characteristics

For waveform observation, use’ an oscilloscope which has characteristics

that meet the waveform to be observed.

-35-

The inverter base drive waveform can be observed, for example, with,

Instruments

5ooV megger

Multimeter

Voltmster

Ammeter

a 10MHz oscilloscope.

To measure transient waveform at rise of
signal (dv/dt or di/dt) , however, an oscilloscope of 200MHz or
larger frequency is required.

._

Table 4 Instruments and points to be measured

Measuring point

Main

..

circuit circuit ductivity

Control insulation Con- Voltage Current W aveform

0

0 0

?

0 ‘0

0

Measuring item

0 0

t

Description

Measure across batch of main circuit

terminals and ground.

(This does not apply to control circuit.)

Judges whether semiconductor element

is proper or not. Used to know

conductivity or resistance value.

0

Measure line and inverter output voltage.
Use a rectifier type.

Measure line and output current.
Use a moving-iron type.

0

Oscilloscope

Digital multimeter 0

0

0 0

1 ’ 1 ’ 1 ’ 1 transient voltage and current.

Used to observe waveform and measure

Used to measure circuit voltage instead

of multimeter.

6.5 Transistor modules and diode modules

To check transistor modules and diode modules, follow the procedure

described below.

(1) Preparation .

0 Disconnect the power supply cables (R, S, T) and motor ‘cables (II, V, W> .

l

Prepare a multimeter (set the multimeter to “ 1 OHM” resistance

measurement range) .

(21 Checking method

0

Alternate polarity of multimeter with the multimeter probes connected to
inverter terminals R, S, T, U, V, W; P and N and check for continuity
as listed in Table 5.

-36.-

0

__~___.I.____----._-.lr--_ .-*,-. I ,, .r b (. , __,.._ -.~_l”ll_l-._----

Table 5 Checking the transistor modules and

diode modules

Normal conditidns Normal conditions

Notes: 1. Before measurement, check that the smoothing capacitor

been discharged.

2. “Discontinuity” means that the multimeter reading is almost
infinite. Due to electricity remaining in smqothing capacitor,
the multimeter may indicate “continuity” momentarily.

“Continuity” means that the multimeter reading is about

1 - lOOohm, depending on number of total modules, number

of modules connected in parallel, type of- modules, etc.

If all measurement results are almost same, the modules

are in good condition.

have

-37-

P

TRl TR3 TR5

P

Dim

v

W

id6 TR 2

N

6.6 Parts replacement

The inverter consists of many esectronic ,parts such as. semiconductors.

The parts described below may deteriorate with time in electronical and
physical characteristics.
As preventive maintenance, therefore, these parts require to be replaced

0

periodically.

(11 Cooling fan

The service life of the bearings of the fan used to cool heatgenerating
parts such as main circuit semiconductors is ‘usually within a range from

10,000 to 35,000 hours. Hence, it ‘is necessary to replace the cooling fan

every 2 or 3 years.

If unusual noise and/or vibration is found during inspection, it is
necessary to replace thecooling fan.

Smoothing capacitor

For smoothing (rectification .of input power supply) , large-capacity aluminum
electric capacitors are used in the DC main circuit.
Its characteristics are, adversely affected by ripple current, etc.
When the invertey is used in normal air-conditioned environment, for

0

example, replace the capacitors about every 5 years.

0

- ,_-. -.-.“*-*, .,._ < _ 4. . _. ._i .,_..___ ___I_-. I

When a capacitor is used for the period specified as life, it may

deteriorate suddenly.
It is necessary to check all smoothing capacitors yearly (several months

if life ‘is about to expire) .

.

Check the followings:

.

0 Case

. Side walls and bottom for deformation

0 Sealing plate

@ Pressure relief valve :

: For unusual warp and cracks

For excessive valve expansion and
operation

@ Appearance, crack in case, discoloration and leakage:

When capacitance of a capacitor is reduced below 85% of rated

capacitance, replace that capacitor.

To measure capacitance, use an

instrument available commercially.

(3) Relays

To prevent miscontact, it is necessary to replace relays in accordance
with the acumulated switching times.

For approximate interver parts replacement, refer to Table 6.
Other parts , having a relatively short service life, such as lamps. Replace
when deemed necessary as periodic inspection result will reveal.

Table 6 Inverter replacement parts

Part uame

Cooling fan

Standard interval 1

2 to 3 years

Replace (determine

Description

after checking)

Smoothing capacitor

5 years

Replace (determine
after checking)

Relays

Determine after checking

-39-

I

Q 7. TROIJBLESHOOTING

If a fault occurs and the mverter does not work properly,, determine the

cause referring to the following troubleshooting list and apply the remedy.

If the cause cannot be determined in accordance with the list, the inverter
or its part(s) ,is likely to be defective.

For remedy of serious trouble or any inquiry, contact the nearest service

representative.

7.1 Troubleshooting

(1) Troubleshooting by indicator lamps’ of parameter unit

Indicator lamp. Possible cause Checkup Remedy

OVT: Overvoltage in DC
Regenerative output circuit fast? time (it should meet
overvoltage (across terminals load GDP (WK*) **a
shut off P and N) inertia) ‘.
(deceleration time

set improperly)

IPF:
Instantaneous failure of instantaneous
power failure power failure.

FIN: Heatsinks are Is cooling fan Replace cooling fan
Heatsink overheat overheated.

BE: ‘Brake transistor is Is brake operating Reduce load GD*
Brake transistor, defective. duty proper? (WK’) .

fault Reduce brake

Instantaneous power Determine the cause

.

Is ’ deceleration too Increase deceleration

stopped (for models
larger than 2.2K) ? Reduce. ambient

temperature.
Is ambient temp­erature too high?

. . .

‘operating duty.

‘0

OCl:
Acceleration ‘.- -

overcurrent Is outptt short-

Overcurrent Is acceleration too Prolong acceleration

ftist? --. : ,time.

circuited?

-4o-

0

Indicator lamp

Possible cause

Checkup

Remedy

oc2:

Steady speed

overcurrent

oc3:
Deceleration
overcurrent

THM:
Overload alarm

THT:
Overload alarm

OLT:
Stall prevention

Overcurrent

Motor. thermal relay Is motor overloaded? Lighten load.

Inverter thermal relay

Long-lasting action
of stall preventive Change motor/
function inverter capacity.

Is load changed
suddenly?, load change,
Is output short­circuited?

Is deceleration too
fast? time.
Is output short­circuited?

Is motor overloaded? Lighten load.

Eliminate sudden

Prolong deceleratior

Change motor/
inverter capacity.

r

r‘

UVT:

Under voltage

GF:
Ground fault
overcurrent

OHT:
External thermal in external circuit is overheat?
relay trip activated.

OPT: Option unit is not
Built-in option connected to inverter securely. connector.
unit connection properly.
failure

If an indicator lamp lights, the motor stops after coasting.
To resume motor operation,
and restart the inverter.

,..

Low power supply Is a motor having Check power supply
voltage

Ground fault in

output line

Thermal relay provided Does motor Lighten load or

remove the cause, reset the protective function

a large capacity
(connected in the,
same power line)
started?

Is output line or Check output line
motor short-circuited and motor, and
to ground? remove short-

Is connector engaged Securely engage

.

line.

circuiting.

duty.

‘

-41-

(2) Troubleshooting list

Trouble

Motor does
not start ***

Checkup

Are all wirings correct?

Are voltages across power supply

terminals R and S, S and T, and
T and S normal (POWER and
CHARGE lamps should light) ?

.

Are there output voltages across
terminals U and V, V and W,
and W and U?

Is motor locked (due to excessively
large load) ?

Does ALARM lamp light? *

Is parameter set up properly?

Remedy

0

Correct wirings.

Supply voltages.

Supply voltages.

Remove cause of locking
of motor.

See the previous page.

Check settings.

Motor starts

and rotates
in wrong
direction a*.

Motor runs,
but its speed
cannot be
changed ***

Motor accele-

ration or decele­ration is not

smooth a**

Are wirings of output circuit in

correct phase sequence?

Are “FWD” and “REV” signal .
lines connected to correct
terminals?

Is frequency reference signai wiring
correct?

Is load too heavy?

Is time for acceleration or deceleration
too short?

Correct output phase
sequence.

“FWD” signal:
Terminals STF - SD
closed

“REV” signal:
Terminals STR - SD
closed

Correct frequency reference
signal wiring.

Lighten load.

Prolong acceleration or
deceleration time.

0

-42-

0

. -.e

. . d._ __-,- .---.

.--I-- “ll__ ,. .I.. e... - 1.

* .-. - .---

Trouble Checkup

Remedy

Motor speed is Are number of poles of motor Check specifications and
out of control correct? Does voltage meet Rating Plate.

(motor speed

specifications?
is too high
or low)

. . . . . .

Is gear reduction ratio correct?

Is maximum frequency set properly? Check maximum frequency

setting.

Are voltages across motor terminals Check base frequency
correct?

(V/F) .

Motor speed is Is load too large? Lighten load.

unstable *..

Is load change excessive? Minimize load change.

Increase inverter and
motor capacities.

-43-

7.2’ Protective functions

The inverter is provided with the following protective functions for protection
from overcurrent or overvoltage.

. .

If a protective function is
is shut off and the motor stops after coasting. Its cause is displayed by
the readout of parameter unit (when parameter unit is used) .
For details, refer to the description “PARAMETER UNIT”. (p. 92)

Function Description

Overcurrent
stall prevention . rated current flows into the motor during

When 150% (Note*)

acceleration, this function stops increase of to prevent recurrence
frequency (inverter output) until load current of action of this
reduces to prevent - the inverter from
overcurrent tripping.

When 150% or more of the inverter rated

activated, the transistor base current (output)

Remedy

or more of the inverter

Prolong acceleration
time or reduce load

function.

0

current flows during normal (constant­speed) operation, this function reduces
frequency until load current reduces to
prevent inverter from overcurrent tripping.
After load current is reduced below 150%,
this function allows increase of frequency
up to the preset frequency.

Regenerative If converter output voltage is increased
overvoltage excessively by regenerative energy during
stall prevention motor deceleration, this function stops

decrease of frequency to prevent inverter
from overvoltage tripping.

Prolong deceleration
time.

0

-44-

-._. . . . ..- -.,...... ^.l_l-- -,__,__-. _1 ,--,- ,,, ,,.--. +

.- ” .i< _... * ._._” _-____

Function

Overcurrent
shutoff

(OCl)

(OC2)

(OC3)

Description

Remarks

As soon as regenerative energy has
reduced, this function decreases frequency
again to allow deceleration to continue.

When 200% or more of the inverter

rated output current flows, this protective

The most possible

causes of overcurrent

function is activated to stop the inverter. shutoff include invertel

output short-circuit,
ground fault, excessivt
load inertia (GD’) ,
extremely short setting
of acceleration/
deceleration time,

Regenerative
overvoltage
shutoff :

(OVT)

When converter output voltage becomes
excessive, ‘due to regenerative energy from
the motor, this protective function is
activated to stop and hold transistor

start during motor
coasting, start of

special motor or
motor of capacity
larger than inverter
rating.

Restart after
examinating and
removing the cause.

This function is
activated mainly due
to short deceleration
time or negative

base current off.

load.

-ai-

Function

Description

Remarks

OVT

(continued)

Instantaneous
power failure
protection .

(IPF)

Prolong deceleration
time (it should be
noted that overheat
of incorporated
brake resistor may
catse activation of
this function) .

To prevent failure when instantaneous If power is switchec
power failtre lasting for 15 msec or
longer (also when inverter input power

supply is shut off for 15 . msec or

longer) occurs, the instantaneous power
failure protective function is activated
and stops (and hold stopped) inverter

on after inverter
output shutoff, the
resultant restart durini
motor coasting may
trip the inverter.

Under-voltage
protection

(UVT)

output.
In this case, alarm output contact is
open (across B and C> .

(If power failure is shorter than

15 msec, operation continues normally.)

If the inverter input power voltage is

below the specified mimimum voltage,
the inverter cotrol circuit cannot function power transformer ir
normally and the specified motor torque
cannot be obtained or overheating may

occur.

When the input ’ power voltage goes -down same power line

To prevent tripping
of the inverter, use
an automatic restart
prevention circuit.

Under voltage may
occur if capacity of

insufficient, or a
motor having a
large capacity
connected to the

below about 150V (about 300V in case of is started.
400V class) , undervoltage protective function Cheer the power line

-46-

f-

Function

Description

is activated and stops (and holds stopped)
inverter output.

Remarks

Brake transistor If trouble occurs with brake transistor,
fault detection

(BE)

Overload shutoff Electronic thermal relay in the inverter

(Electronic

thermal relay) under rated conditions, or motor over-

(THT)
(THM)

this function detects it and shuts off
inverter output.

detects overload of motor during operation of overload, and

heating at low speed, and activates this
protective function which stops (holds
stopped) inverter output.

Examine thermal
capacity of brake
resistor and regene-

rative braking duty
(%ED) and use

inverter having a

larger capacity, if
necessary.

Examine the cause

lighten load, change
operation pattern,
or use inverter
having a larger

r--

CkUTION
External overload protection must be
provided to protect the motor in
accordance with UL508 Par.144.3.

Heatsink overheat Models larger than 2.2K are equipped
protection with cooling far&) .

(FIN)

If the fan fails and the semiconductor

heatsinks overheat, temperature sensor is

activated to shut off (hold shut off)

inverter output.

capacity if necessary

Examine cooling fan
operation and ambient
temperature.

Function

Description Remarks

0

Brake resistor
overheat exceeds the specified value, the brake
protection operation is stopped to protect the

Ground fault If ground fault occurs on the inverter Check if ground
current protectior output side (load side) and ground fault

(GF)

If regenerative brake energy from motor Prolong deceleration

time or change
operati-on sequence

brake resistor .from overheating.

When the brake resistor is cooled, the
brake operation restarts automatically.

_ current flows, the inverter output is

shut off.

to reduce. braking
duty.

fault occurs on the
load side (motor
power circuit) .
After removal of

the cause, restart
operation.

0

External thermal If externallyinstalled thermal relay for
relay trip protection of motor from overheat

(OHT)

Built-in option When an inverter built-in option unit Check connection

unit connection is used and not connected properly (connector engage-

failure

(OPT)

(or motor built-in thermal relay) is
activated (relay contact is opened) , the
inverter output is shut off and held
shut off.
This function is applicable when

,“external thermal signal input” function

is selected. (FUNCTION 46)

(misengagement
the inverter is shut off.

of conector, for example) , men0 of option unit.

Examine load and
motor duty to
determine the cause
of overheat.

_’

-- “. ,..,.i-.“--

--- ,-,- -- _-._._ .,. . .._- _..* .I.. _ , I _, .~ . . __.~l__l

Note *: The stall prevention threshold level is set to “150%” of

inverter rated current when the inverter is shipped. This
setting can be changed by user (the overcurrent stall
prevention is activated at the threshold level set by user) .
Use this function parameter with care.

INDICATION AND DISPLAY OF PROTECTIVE FUNCTION

If a protecsive function is activated,

0 ALARM lamp lights,

and

0 Alarm information is dispkayed on the readout of parameter unit

(for details, refer to the description of

“PARAMETER UNIT”) . (p. 92)

HOW TO RESET THE INVERTER

If a protective function is activated, the inverter output is shut off

(held shut off) and the -motor stops after coasting.

To resume operation, the inverter should be reset by turning off and
then on again, or short-circuit between RESET terminals (RES and SD>
for at least O.lsec.
If terminals (RES and SD) are held closed, “Err.” appears (flickering) in
the readout * of the parameter unit, indicating that the inverter is in a

reset condition. Do not switch on and off repeatedly by the mains unit.

HOW TO HOLD AN ALARM OUTPUT SIGNAL

/

If the magnetic contactor on the power input side of the inverter is
opened when a protective function is actuated, the control circuit of
inverter is shut off from the power supply and the alarm signal cannot

be held on.

To hvld an alarm signal, an external circuit which holds an alarm signal
is used, or a separate power supply is provided for the control circuit

r

‘1

(refer to 4. WIRING, (5)) .

-4Q-

ALARM HISTORY

The alarm information is stored In the memory (E’ROM) of inverter, and
not erased even when the power is turned off.

Since a maximum of 4 alarms can be stored in the memory, they can
be read one by one to identify the cause (for details, refer to the
description’ of “PARAMETER UNIT”) . (p. 89)

0

0

-5o-

0

_x_

,*

..*-_..-

_IL_~~-_*--_--l-_II

,._-_

1. . .

..^

.c

--

..--

--

§ 8. SPECIFICATIONS

8.1 Block diagram

Factory use

Provided only

in 400V class

Forward run

Reverse run

stop

Multi- speed

selection

JOG/OH

select

2nd accel./
decel.

Output halt

Current

input

common

Reset

0

B..

t ATT

(Note 2 )

CPU

(Note 1)

PR.

I I

I ,I

G3

LSI
Custom -

made)

ALARM

-3

i

,

RA

s

(Note 3)

ii Jjg/y’

Common dr

DC 4 -2OmA >
DCOm+lOV>

DCOmk5V

> ‘lE

Notes:

-J
+1ov

Y

:onnector

14
T -

il K
Y

Parameter unit

FR-PUOl

1

--

1 . Terminal PR is provided in FR-Z220-0.4K to 7.5K,

and FR-Z24+2.2K to 7.5K.

-51-

-I

RUN

su
OL
IPF
FU

SE

i

Ground

2. Terminal P 1 is provided in FR-Z220-5.5K to 55K, and
FR-Z240-5.5K to 55K.

3. Terminal CS is provided in models larger than FR-Z220-15K
and FR-Z240-11K.

*4 . For models larger than llK, built-in regenerative brake resistor

and brake transistor are not installed in the inverter. Fit

” BU ” brake option externally. on these larger models.

See page 53. P, P 1, PR, N.

0

0

-52-

0

8.2 Terminals

. .-

__,....-_ .___ j. ,. _I” .-... c.“---....” __,-.-”

Symbol

STF

L

STR

Terminal name

AC power supply
input terminals

Inverter output
terminals

Converter output
terminals

Control power
supply terminals

Ground terminal

Forward
start input signal
terminal

Reverse
start input signal
terminal

Description

Connected to commercial power supply

Connected to three-phase squirrel-cage motor

Connected to optional BU type brake unit

(terminals P and N) or external regenerative

brake resistor (terminals P and PR)

Connected to power supply terminals (R and
S) in the inverter. When it is desirous to
hold alarm display, remove jumper wire from
terminals R and S and connect external
power supply to these terminals.

Inverter chassis grounding terminals

Motor starts rotating in forward

direction (normal run) when ,STF and SD

are short-circuited.

Motor starts rotating in reverse direction
when STR and SD are short-circuited.

STOP

RH,RM,RL

JOG/OH

Start signal self­hold terminal

Multi-speed
select terminals

JOG mode select or
external thermal

Start signal can be self-held ,when STOP
and SD are short-circuited. (p. 13)

A speed range can be selected from 7

different preset speed ranges. (p. 103)

JOG operation mode is selected when JOG
and SD are short-circuited.
To start and stop in JOG, use. signals
STF and SIR. (p. 106)

-53-

Symbol

Terminal name

Description

JOG/OH
Continued)

RT

MRS

RES

AU

With external relay, it is possible to stop
inverter operation by a thermal contact
input signal.

2 nd acceleration/ 2 nd acceleration/deceleration time can be
deceleration time selected by short-circuiting, between RT and
select terminal SD.

Inverter output
shutoff, input
terminal

Reset signal, input
terminal

Current frequency
reference signal
select terminal

Shuts off transistor base current (inverter
output) to stop motor by. means of
magnetic brake, etc.
Inverter output is shut off when MRS and
SD are short-circuited.

To reset inverter after tripping, RES and
SD are* short-circuited for ‘more than O.lsec,

When AU and SD are short-circuited, DC
current ranging from 4 mA to 20mA can
be used as frequency reference signal.

0

0

SD

10

2

Instantaneous stop,
restart select
terminal

Common terminal .foi
contact input

Power supply
terminal for
frequency reference

Frequency reference
input signal

When CS and SD are held short-circuited,
operation is restarted automatically after
restoration following a power failure. (p. 12)

Common to contact input signal and

frequency indication
Insulated from common’ circuit of inverter
control circuit

DC 5 V or DClOV (selestabble by changing
position of connector) . See p. 23.
Permissible maximum load current: 1OmA

When 0 to 5 V signal ‘(or 0 to lOV> is
input, the output frequency is at a maximum
at 5 V (or lOV> of input voltage.

0

-54-

..-...--- .s .I .-,-A.. .-. .- .-.. “.A..” “_. . ..,&.--

If-

1/ -

-‘w

Symbol

2

IContinued)

5

Terminal name

Common terminal fol

frequency reference

Description

The output frequency is directly proportional

to the input frequency reference signal
voltage. The frequency reference signal
voltage is within range from

ov to 5v
when connector (CON 5 > is engaged to m 5 V “,
and within range from
engaged to

” 1ov ” .

0 V to 1OV when

See p.23.

Input resistance : 1Okohm

Common to frequency reference input signal
Not insulated from common circuit of the
control circuit
Do not ground this terminal.

.K

1E

4

Auxiliary frequency
reference input signal
terminal

Auxiliary frequency
reference input signal
terminal

Current frequency

When DC0 to +lOV is input, the output
frequency becomes

-lOV*) .

The output frequency is proportional

maximum at +lOV (or

to the input frequency reference signal voltage.

The signal is added to signal on terminal 2.

Input resistance: 1Okohm

When DC0 to + 5 V is input, the output
frequency reaches a maximum at + 5 V (or

- 5 V * > . The output frequency is proportional
to the frequency reference signal voltage.
The signal is added to reference on terminal 2.
Input resistance: 1Okohm

Current signal ranging from DC4 mA to

r

-a.-.-

reference input
signal terminal

20mA is input.

Input rezistance: 2500hm

-55-

Symbol

-56-

A,W

Terminal name

Alarm signal outpui

terminal

Description

0

Integrated Circuit contact signal which indicates
that a protective function of the inverter
has activated and inverter output is shut off.
Output from B and C is closed (A-C open)
when operation is normal, and output from
B and C is open (A-C closed) when a
protectfve function is activated.
Contact capacity: AC230V 0.3A, DC3OV 0.3A

RUN

Inverter “RUN”
status output
signal terminal

IC signal

Up-to-frequency
signal terminal
(Up to pre-set

speed)

IC signal

Overload alarm
signal terminal

The signal is “L” level when invert.er output
frequency is higher than start frequency,

and ” H ” level without output and during
DC dynamic brake operation ********. (open
collector output)

The signal is ” L ”
frequency reaches the range of -tlO%
(initial setting) of preset frequency (may be
changed by user) . The signal is “H”
during acceleration deceleration, or stopped
(open collector, output) .

The signal falls to ” L ” level if current
exceeds the preset value and the stall
preventive function is activated. The signal

when inverter output

:

IPF

FU

IC signal

Instantaneous power
failure signal terminal
IC signal

Output frequency
detection signal
terminal

IC ,~ signal

is ” H ” when the stall prevention function
is reset (open collector output) .

The signal falls to ” L ” level if instantaneous
power failnre or undervoltage alarm occurs
(open collector output) .

The signal falls to ” L ” level if inverter
output frequency exceeds frequency level
wrezet by user.

0

Symbol

Terminal name

Description

r

-

FU
(Continued)

SE

FM

*When function No.41 is set to ” 1 ” for forward and reverse operation

Common terminal for
open collector
output
IC signal

Terminal for
frequency indicator

and digital counter

The signal is ” H ” when inverter output
frequency is lower than the preset frequency
level (open collector output) .

This terminal is common to signals RUN,SU,
OLJPF and FU, and insulated from common
control circuit.

When inverter is shipped, the signal is set so

that about DC 5 V (FM-SD opened) is output
when inverter output frequency is 60Hz.
The output voltage is proportional to the
output frequency, and has pulse train waveform.

Initial setting: 1440Hz/60Hz

with analog speed reference signal, the inverter output frequency becomes

maximum when signal voltage is - 5 V (or -lOV> .

Note 1 : The. rated voltage and current of open collector output are DC24V

and O.lA respectively.

8.3 Standard specifications

Voltage class 2oov

Model FR-ZZZO-

ipplicable motor capacity HP (kW)

0 Nominal output (kVA)
i?

*w

,.d Output, current (A)

Sk

9
8

f

5 Frequency range
5 Frequency Digital input

Maximum output voltage

C.1)

AC voltage and frequency

4

Permissive voltage

regulation

$

.

cn

Permissive frequency

k

regulation

B

fc

Power swdy capacity

(kVA) (‘2)

Control method Sinusoidal wave PWM control

Ei

d

0
ii

resolution Analog input I /lOOO of maximum frequency

,a

Frequency Digital setting

ii

2

accuracy Analog setting

E

z

Voltage/frequency Base frequency selectable within 50Hz - 360Hz

s

characteristics Constant torque or reduced torque pattern is selectable.

FR-Z220

-0.4K -0.75K -1.5K -2.2K -3.7K -5.5K -7.5K -1lK -15K -22K -3OK -37K -45K -55K

i/2 (0.4) 1 (0.75) 2 (1.5) 3 (2.2) 5 (3.7) 7.5 (5.5)

1.1 1.9 3.1 4.2 6.5 9.2
3 5 8 11 17 24

Three:phase, 2OOV 50H2, 200/220/23OV 60Hz

Three-phase, 2OOV 50H2, 200/220/23OV 60Hz

180 - 22OV 5OH2, 180 253V 60Hz

+5%

1

5

0.5 - 360Hz (starting frequency : 0.5 ­O.OlHz (less than 100Hz) , O.lHz (more

Max. 0.01% of preset output frequency (when set by parameter unit)
Max. *0.5% of maximum output frequency (at 25“C+lO”C)

2 5 4 5 5 5 g 12

-

10 (7:5)

12.6 17.6 23.3
33 46 61

17

lOHz,

than

15 (11) 20 (15) ‘($t$ 40 (30)

34 44 55 67
90 115 145 175

2b 28 34/41 52

adjustable)

lOOH&) . . . . when parameter

50 (371 60 (45) 75 (55)

82

215

66 80 100

unit is used.

0

0

0

i

‘)

Voltage class

Model FR-2220-

Torque boost Manual and automatic torque boost

g

3

8

5 Braking brake

0
;,

torque

!s

Stall preventive function

i=i

E:

threshold current

2

Rated overload current, 150% for 1 min., 200% for 0.5sec.

s

Frequency reference DC0 - 5 V, 0 - lOV, 4 - 20mA
signal Auxiliary frequency reference signal : DC 0 - + 5 V, 0 - &lOV

Start signal
Acceleration/deceleration

E’

‘S

time

$ .
r;t
‘i;

a

iit
T;;i

g
‘3

2

%
0

2 nd acceleration/

deceleration time

Acceleration/deceleration
pattern

Multi-speed setting

Maximum and minimum Maximum frequency limit adjustable range : 0 - 36OHz
frequency limit setting Maximum frequency limit adjustable range : 0 - 60Hz

Regenerative Min. 150% Min. 100%

DC dynamic
brake

-0.4K I-0.75KI -1.5KI -2.2KI -3.7KI -5.5KI -7.5K) -1lK 1 -15K 1 -22K ) -3OK 1 -37K 1 -45K 1 -55K

(short time) (short time)

Operating frequency ( 0 - ,60Hz) , operating time ( 0 - 10sec) , voltage (torque) adjustable

Threshold current can be set.

Independent “forward start” and “reverse start”,
input) are applicable.

o 1

. - 3600sec. (acceleration and deceleration and times can be set independently)

0.1 - 3600sec. (acceleration and deceleration and times are set identically)

“Linear pattern” or “S pattern” can be selected.

Maximum 7 speed ranges can be set (adjustable within range from 0 Hz to 360Hz in
each speed range)

2oov

FR-Z220

Capacitor charge (min. 20%’ 3 )

and start signal self-holding ( 3 -wire

JOG mode operation JOG mode select terminal is available (‘4 ‘1 .
Reset signal External reset signal input terminal is available.

Voltage class

200v

Model FR-Z220-

3 Output halt signal Output halt input signal termial is available.

‘2 Operation status output

Sk
9

3

I

8

I

Built-in optional units Maximum 2 cards. can be used.

signals “FU” (frequency detection) signals
Alarm output signal 1 C relay contact signal (AC 230V 0.3A, DC 30V 0.3A)

Protective, alarm and warnin Overcurrent shutoff (during acceleration, deceleration and normal operation) , regenerative
functions overvoltage shutoff, undervoltage protection, instantaneous power failure protection, overload

‘.

Ambient temperature -10°C to +5O“C (to be free from freezing)
Ambient humidity

%

2

Storage temperature (’ 7 > 1 -20°C to +65”C

E

‘5’ .
3

Protective structure

Atmosphere
Altitude, vibration

(JEM 1030)

-0.4K (-0.75KI -1.SK I-2.2K I-3.7K 1 -5.5K 1 -7.5K 1 -1lK 1 -15K 1 -22K 1 -3OK 1 -37K 1 -45K 1 -55K

‘RUN”, “SU” (up-to-frequency) , “ON” (overload) , “IPF” (instantaneous power failure) and

shutoff, (electronic terminal relay) , brake transistor fault detection
protection, output short-circuit protection, heatsink overheat protection 0 6 > , brake regenerative
resistor overheat protection (+5 >’ ,

9O%RH or less (to be free from condensation)

Indoor
Below 10OOm (3300ft)

0.6G or less (conforms to JIS 0911)

Enclosed type (IP20)

To be free from corrosive gases and. dense dust

stall prevention and overload alarm

FR-Z220

(‘5

4

Open type (wx>)

> , ground overcurrent

Weight (kg) kg (Lb)

Notes : l

1. If the line voltage decreases, output voltage over the line

l

2. Power supply capacity indicates the inverter input kVA and may change depending on power supply
impedance (including input reactor) .

* 3. This value may’ depend on motor loss.
* 4. JOG ,operation can be controlled not’ only with signal on JOG mode select terminal, but also parameter

unit.

* 5. This function is not provided for models FR-Z2WllK to 55K, and FR-Z2QO-11K to 55K.

0

0

v&age

cannot be guaranteed.

0

Voltage class

Model FR-Z240-

Applicable motor
capacity HP (kW)

4OOV

FR-Z240

-2.2K -3.7K -5.5K -7.5K -1lK - 15K -22K

-3OK -37K

-45K -55K

3 (2.2) 5 (3.7) 7.5 (5.5) 10 (7.5) 15 (11) 20 (15) “$j5& 40 (30) 50 (37) 60 (45) 75 (55)

G Nominal output (kVA)

-2 Output current (A)
5 2.
P

Maximum output voltage

6

AC voltage and frequency

x

Permissive voltage

34

regulation

is

Permissive frequency

b

regulation

B

Power supply capacity 5 5

62

(kVA) (* 2 > ’
Control method
Frequency range

2

22

2

Frequency

5

resolution

8
2

2

=I’ Frequency

&

accuracy

2

Digital
input

Analog
input

Digital
setting

Analog

s

Voltage/frequency
characteristics

4.2 6.9 . 9.9
6

9

13

13
17

17.5 23.6 32.8
23 31 43

(. 1) Three-phase, 400V 5OH2, 400/440/46OV 60Hz

Three-phase, 400V 50Hz, 400/440/46OV 6OHz
360 -

440V 50Hz, 360 - 506V 60Hz

+5%

9

12

17

20 28 34/41 52 66 80 100

Sinusoidal wave PWM control

0.5 - 360Hz (starting frequency: 0.5 - lOHz, adjustable)

O.OlHz (less than 100Hz) , O.lHz (more than 1OOHz) . . ..when parameter unit is used.

1 /lOOO of maximum frequency

Max. 0.01% of preset output frequency (when set by parameter unit)
Max. +0.5% of maximum output frequency (at 25”C+lO”C)

Base frequency selectable within 50Hz - 360Hz
Constant torque

or reduced torque pattern is selectable.

43.4 54
57 71

65.5 84
86 110

Voltage class

400v

Model FR-Z240-

-22K 1 -3.7K 1 -5.5K 1

Torque boost

g

‘I:

d

c

Braking brake

.r(

8

torque DC dynamic

iit
!ii

z

Stall preventive function

e

threshvld current

2

Rated overload current 150% for 1 min. , 200% for 0.5sec

u”

Frequency reference DC0 -

signal Auxiliary frequency reference signal: DC 0 - & 5 V, 0 - &lOV

Start signal

Acceleration/deceleration

do

3
5

74
‘S

8

time

0

2 nd acceleration/

8 deceleration time
ii?

Acceleration/deceleration
pattern

od

Multi-speed setting
2

Q)

.Maximum and minimum

frequency limit setting

JOG mode operation

Regenerative

brake

Manual and automatic torque boost
Min. 100% (short time)

Operating frequency ( 0 - 60Hz) , operating time ( 0 - 1Osec) , voltage (torque) adjustable

Threshold current can be set.

5 V, 0 - l.OV, 4 - 20mA

Independent “forward start” and .Yeverse start”,
input) are applicable.

o I

. - 36OOsec. (acceleration and deceleration times can be set independently)

0.1 - 36OOsec. (acceleration and deceleration times are set identically)

“Linear pattern” or “S pattern” can be selected.

Maximum 7 speed ranges can

each speed range)

Maximum frequency limit adjustable range: 0 - 360Hz

Maximum frequency limit adjustable range: 0 - 60Hz

JOG mode select terminal is available ( l 4 > ,

-7.5K -1lK -15K

FR-Z240

-22K

,

Capacitor charge (min. 20%*‘3 )

and start signal self-holding ( 3 -wire

be set (adjustable within range from 0 Hz to 360Hz in

1 -3OK 1 -37K 1 -45K 1 -55K

Frequency jump Maximum three frequency jump zones can be set.

Reset signal External reset signal input terminal is available.

0

0

0

Voltage class 4oov

Model FR-Z240-

2 Output halt signal

5 .$ Operation status

i3
a

output signals and “FU” (frequency detection) signals
Alarm output signal IC relay contact signal (AC230V 0.3A, DC30V 0&3A)

-22K 1 -3.7K 1
Output halt input signal terminal is available.
“RUN”,

“SU” ‘(up-to-frequency) , ‘OL” (overload) ,

-5.5K 1 -7.5K 1 -1lK

Overcurrent shutoff (during acceleration,’ deceleration and normal operation) , regenerative
Protective, alarm and
warning functions

overvoltage shutoff (electronic terminal relay) ,

fault overcurrent protection, heatsink overheat protection, brake regenerative resistor overhee

protection ( * 5 > , stall prevention and overload alarm

Ambient temparature -10°C to +5O”C (to be free from freezing)

2

‘5’
I3

Ambient humidity 9O%RH or less (to be free from condensation)

ii!

Storage temparature ( l 6 )

2

Atmosphere
Altitude, vibration

-20°C to +65”C

Indoor

To be free from corrosive gases and dense dust

Below 1OOOm (3300ft)

0.6G or less (conforms to JIS CO911 >
Built-in optional units Maximum 2 cards can be used.
Protective structure

(JEM 1030)

Weight kg (Lb)

Enclosed type (IP20)

10.5 11

(23.15); '(24.25) (26.46) (55.12)

12

FR-2240

-15K 1 -22K 1 -3OK 1 -37K ] -45K 1 -55K

“IPF” (instantaneous power failure) and

brake transistor fault detection (* 5 > , groun

Open type (IPOO)

25

(632993)

47

(103.62) (156.53;

71

Notes :

l

6. This function is ‘not provided in models FR-Z220-0.4K to 1.5K having no cooling fan.

’ 7. This is

“short-time storage temperature” (during transport, for example) .

8.4 External dimensions

n

FR-Z220-0.4K(P)-3.7K(P) [2OOV class]

n

FR-Z220-5.5K(P)--1lK [2OOV class)

------- r

rt-- ----‘!
I! :

l

2QOV clan

Inverter model C H
FR-Z220-O.IK(P) 110 50
FR-Z220-O.EK(P) 140 80
FR-Z220-1.5K(P) 140 80
FR-Z220-2.2K(P) 170 110
FR-Z220-3.7K(P) ,170 110

Note: &dels FR-Z220-0.4K to 1.5K

are not equipped with cooling fan.

FR-Z240y2.2K(P)--7.5K(P) [4OOV class)

\

Dimension in mm

0

I

View from *rrow

l

2OOV class

lnverter model lnverter model

L
j 1wit”

n

FR-Z220-15K--55K 12OOV class1 , FR-Z240-11 K--55K [4OOV class]

PR-Z220-5.5K(P)
1%2220-7.5K(P)
FR-Z220-1lK

l

2WV clase

l

4OOV class

l

4WV class

FR-Z240-2.2K(P)
FR-Z240-3.7K(P)
FR-Z240-5.5K(P)
FR-Z240-7.5K(P)

0

K

0

-64-

8.5 Selection of peripheral devices

inverter model

Notes: 1 . The interrupting capacity of NFB (no-fuse breaker) should

be selected in accordance with power supply capacity.

-65-

8.6 Drip shield kits

\@f&$$$---y--

0

Markmg

(P--i

Marking

Marking : Part Na is stamped.

0

FR-Z220-11K i TD840A662G54 D784COlOG51 D784COllG51 D785C020H02 D783C501G51
FR-Z240-2.2K 1 TD840A662G54 D784COlOG51 D784COllG51
FR-Z240-3.7K i TD840A662G54 D784COlOG51 D784COllG51 D785C020H02 D783C501G51
FR-2240-5.5K ) TD840A662G54 D784COlOG51 D784COllG51 D785C020H02 D783C501G51
FR-Z240-7.5K j TD840A662G54 D784COlOG51 D784COllG51 D785C020H02 D783C501G51

-66-

D785C020H02 D783C501G51

0

Marking

M4 screw

6

o-,

M 5 Scre

!W

Marking

1 Marking

-Marking

II

Marking : Part No. is stamped.

FR-Z220-37K TD84OA663G54 D714C569G53 D708C556HO3 D811C138HOl D714C569G58 D708C556HO7 lMlC138HO5 D811C138HO5
FR-Z220-45K TD84OA663G54 D714c569G53 D706CS56HO3 D311C138HO1 D714C569G58 D708C556H07 DEllC138HO5 D811Cl38HO5
E’R-Z220-55K TD84OA663G54 D714CS69G53 D708c556EfO3 D811C138HOl D714C569G58 MMS56H07 D811C138HO5 D811C138HO5
FR-Z24Q-1lK TlWOA663G52 D714cX69G52 D708c556HO2 iXllC138HOl D714CS69G55 D708CS56HO5 DSllC138HO3 D811C138HO4
FR-Z240-15K TD84OA663G52 D714CLi69G52 D708Ci56H02 D811C138HOl D714C569G55 D708c556HO5 D811C138HO3 lMlC138HO4
FR-2X40-22K TD84OA663G52 D714CS69G52 D7@3CX%HO2 D611C138HOl D714C569G55 D708cs56HO5 D811C138HO3 D811C138HO4
FR-Z24NOK TWA663G52 D714CS69G52 MWI556H02 D811C138HOl D714C569G55 D708C556H05 D811C138HO3 JXllC138Ho4
FR-Z240-37K TD84OA663G53 D714C569G53 D708CS56HO3 D811C138HOl D714CE69G56 MOW56H06 D811C138HO5 D811C138HO5
FR-Z240-45K TD84OA663G53 D714c569G53 D708cs56HO3 D811C138HOl D714C569G56 MW556HO6 D811C138HO5 D811C138HO5
FR-Z240-55K TD84OA663G53 D714C569G53 D708C556HO3 D811C138HOl D714C569G56 D708C556HO6 D811C138HO5 D811C138HO5

-67-

8.7 Overload protection

External overload protection must be provided to protect the motor in
accordance with the National Electrical Code.

Note: The drive is suitable for use on a circuit capable of delivering 10,000

RMS Symmetrical Amps.

0

-68-

0

1 PARAMETER UNIT 1

-69-

PARAMETER UNIT

Parameter unit, model FR-PUOlE, is directly .attached to the inverter (FR-Z series) ,
or connected to the inverter with the cable (option) .

0

The parameter unit permits the operatior
variable (parameters) ,
In this manual, parameter unit is abbreviated, as “ PU ” .

§ 1. INSTALLATION

The PU can be directly attached to the inverter, or remotely installed and
connected to the inverter with the approved cable. It ‘can be attached or

connected even when the inverter is operating.

l

Direct attachment to inverter

and to monitor operation status through its readout.

(11 Connection

Engage the plug of PU with the receptacle
of inverter and gently press the PU against
the inverter.

to set (read and write) various control

0

(2) Securing the PU in position

Lightly tighten two screws to secure the PU
in position.

CAUTION: (11 The PU should be attached to the inverter with the front cover

installed on the inverter.

(2) Never operate the inverter with the PU with the front cover

removed. To prevent accidental damage to the inverter P.C.B and
the PU unit.

(3) If the inverter must be operated with the front cover removed,

always use the approved extension cable with the PU unit.

(41 Dangerous high voltages are present inside the inverter. Always

use with great care and attention.

-7o-

0

ORemote installation using the approved cable connector

r.

‘-

Connection

(1)

Plug one end of the cable into the
receptacle of inverter, and the other end

into the PU.

Locking of plugs
The plug on the inverter side should be
locked with screws as shown to the left.

On the PU side, secure the cable so that

Fit the guides to the grooves.

CAUTION: (1) For cable, use only that specified by us (available as optional

accessory) .

(2) The cable plugs and sockets only fit in one position. Do not

the cable cannot be disconnected by its
own weight.

force plugs into sockets.

-71-

8 2. OUTLINE OF FUNCTIONS

Selection of

operation mode used as control sour

(Parameter mode)

--_-------------------------

(External mode)

write) of control

variables

(Monitor/alter)

Parameter unit can b Keys of parameter

be used as control
source for inverter

Set control variable

Description

unit are operated.

quency reference poten­tiometer, START switch,

Change of setting

0.

settings (settings made at shipment)

e parameter can

Operation status can

be monitored.

Direction of rotation

-72-

8 3. CONTROL DEVICES OF PARAMETER UNIT

“ONLY LIGHT FINGER PRESURE IS NECESSARY”

---DISPLAY (READOUT)

Frequency, motor current,
preset control variable,
alarm massage, etc. are
displayed by this 4 -digit
readout.

f

f%-PUOl E PARAMETER UNli

7MOUNTING SCREW

By loosening these two screws.
the unit can be separated from the inverter.

VARIABLE INDICATOR LAMP
Control variable to be monitored

_

r

motor current. etc.) is indicated.

i“

@

OPERATION MODE INDICATOR LAMPS

When an operation mode key (MONITOR,
SET, EXT OP. PU OP) is pressed. the
corresponding lamp lights.

OPERATION MODE KEYS

Operation mode can be selected from

I.

MONI’I’OH. WI’, EXT OP and PU OP.

Afler operation mode is selected. desired

control variable can bc set, read (checked)

or written (changed)

1

FliEQUI%‘CY ADJUST KEYS

While it is held down, frequency continously

increases or decreases. (Slowly at first,
progressively faster)

I

HIGH

I?

1-1

I

. . I

T I 1

\I I

\!

I

1 -

- 2nd or 3rd group function key (2 nd)
When setting of 2nd or 3 rd qroup function is read or written, this key is pressed. 3 rd group function

is selwted by SHIFT KEY after this key is pressed.

- SHIFT KEY

Variable (frequency, motor current, alarm message) to be monitored is shifted or 3rd group function is selected.

- CLEAR KEY

If wrong key is pressed during setting, it can be cancelled by pressing this key.

I

I

d

OPERATION KEYS
Motor rotating direction can be selected and

r

operation can be stopped.

-READ/WRITE KEYS
Variable setting can be read (checked) by

pmssing ml and written (changed) by
pressing [WRITE( after m key is pressed.

.FUNCTION/NUMERAL KEYS

Function No. of 1 st group function and

I

value or frequency can be specified.

-73-

Key

Description

pzE?q

SET

I

IMONITOR

2nd

0,
piiiiiq This key is pressed to change variable to be monitored, to

A

tl

This key is pressed when external signals are used to control

the inverter. (Inverter always powers up in this mode)

This key is pressed when the PU (parameter unit) is used to
control the inverter.

This key is pressed to read (check) or write (change) setting of
variable.

This key is pressed to read frequency, motor current, output
v,oltage or alarm message (alarm code) .

2 nd or 3 rd group function can be selected.

select 3 rd group function, or to specify JOG mode.
This key is pressed to correct wrong ‘key operation, or erase

previous entry.
During operation with the PU, this key is pressed to increase

output frequency.
During operation with external signals, this key is pressed to

increase reading of externally connected frequency meter.

(Calibration mode)

0

.During operation with the PU, this key is pressed to decrease

output frequency.’

v

q

FWD

I

REV

El

lsTop[

pfiiFq

ml ”

During operation with external signals, this key is pressed to

decrease reading of externally connected frequency meter.

During operation with the PU, this key is pressed to make the

motor rotate in normal direcion.
During operation with the PU, this key is pressed to make the

motor rotate in opposite direction.
During operation with the PU, this key is pressed to stop the

motor.
This key is pressed to change setting of frequency or other

control variable.

This key is pressed to check setting of variable.

(Calibration mode)

l

” is used to specify decimal point.

0

~

-74-

0

_cI_)__.“I_-_-

..__)_.

-*I--

_._

*.

Key

Description (Dual functions)

r‘

-+a.-

5

MID

q

6

LOW

f-

cl

” 0 ”

. . ..Numeral ” 0 ” is specified.

” BOOST ” . . ..Variable’ ” BOOST ”

,I ,t

1

. . ..Numeral ” 1 ” is specified.

” MAX ” . . ..Variable ” MAXIMUM FREQUENCY LIMIT ” is specified.

” 2 ”

. . ..Numeral ” 2 ” is specified.

” MIN ”
” 3 “

” V/F ” . . ..Variable “ V/F ” (base frequency) is selected.

” 4 ” . . ..Numeral ” 4 “ is specified.

” HIGH ” . . ..Variable ” HIGH SPEED ” is selected.

” 5 ”

“ MID ” . . ..Variable ” MIDDLE SPEED ” is selected.

” 6 ”

” LOW ” . . . . ” LOW SPEED ” is selected.

. . . *Variable ” MINIMUM FREQUENCY LIMIT ” is selected.

. . ..Numeral ” 3 ” is specified.

. . ..Numeral ” 5 “ is specified.

. . ..Numeral ” 6 ” is specified.

is selected.

” 7 ” . . ..Numeral ” 7 ” is specified.

“ ACCEL ” . . ..Variable ” ACCELERATION TIME ” is selected.

” 8 ”

. . ..Numeral

” D&EL ”

9

THM

q

.

” 9 ”

“ THM ” . . . .Variable ” ELECTRONIC THERMAL RELAY OPERATING

CURRENT ” is selected.

. . ..Variable ” DECELERATION TIME ” is selected.

. . ..Numeral ” 9 ” is specified.

” 8 ” is specified.

-75-

3’4 . OPERATION

4.1 Operation mode

The inverter can be operated either with external signals, or with PU

(parameter unit) .
Selection of operation mode (exte;nal signal mode or parameter mode) can
be made by pressing key of PU.
It is possible to fix operation mode. (FUNCTION 79)

Operation with external signals

Tc-----J o see 4.2.

NFB

n

IWWrter

I

Motor

IM

0

0

Direct output

frequency

NFB

Inverter

FR-Z200

INITIAL OPERATION MODE

When the power is turned on (or CLEAR key is pressed to reset) ,

” external signal operation ” mode is automatically selected and the inverter

can be operated with external signals

. . ..the motor starts when START signal (STF-SD or STR-SD closed) is

Motor’

setting

see 4.3

0

3.

0

given.

0

-76-

HOW TO FIX OPERATION MODE (FUNCTION 79)

Initial setting of operation mode can be changed so .that ” PU operation ”
mode is automatically selected whennever the power is turned on.
For details, refer to Q 9.

4.2 Operation with external signals

When ” PU operation ”

select

“ external signal operation ”

mode has been selected, press (EXTOP( key to

selected operation mode lights) .

Example of operation and indication

0 When the inverter is turned on

or 1 EXT OP 1 key is pressed.....

mode (check that the indicator lamp of

0 During operation with external

frequency reference set at 30Hz....,

I

Note: )I( and o’ show that lamp lights and does not light respectively.

(1) When

“external signal operation” mode is selected, “MONITOR” mode
is automatically selected and output frequency is displayed by the
readout (see Q. 6 .) .

(2) While invertey output is on (during rotation of the motor) ,

the mode. indicator lamp just above

pTiq key flickers

(t.he same occurs during DC dynamic brake operation) . (Note ‘)

CAUTION: Changing operation mode from “PU operation” to “External

signal operation”
Operation mode cannot be changed when START signal is

on GTF - SD or STR - SD is closed) .

-77-

Before changing operation mode, START signal should be ,turned
off and it should be verified that the motor stops completely.

(Note l > The lamp does not flicker when a parameter unit of old

specification (Spec. Na BKO - C2128) is used.

4.3 Operation with PU

To operate the inverter with the PU, press op
After that, the inverter can be started ‘and stopped by pressing keys of
PU (without use of externally installed frequency reference potentiometer and
START switch) .
In this operation mode, it is also possible to jog the motor by pressing
keys of PU.

IMPORTANT ‘NOTE

If the inverter is turned off or reset, operation mode changes from

“PU operation” to “external signal operation” (initial mode setting) .

(1) DIRECT OUTPUT FREQUENCY SETTING

PU

cl

key.

3

(2) OUTPUT FREQUENCY SETTING, USING V OR A KEY (STEP

SETTING)

This method of setting corresponds to the method where externally
installed frequency reference potentiometer is used.

q

key is held down, frequency increases (or decreases) continuously.

Increase (or decrease) of frequency is slow immediately after key is

pressed, and becomes faster with time.

Note: If speed is being monitored, this setting should not be. tried (speed.

may not be displayed accurately) .

-78-

While

q

or

0

f-

(31 JOG operation

To jog the motor, perform’ the following operation:

(-

PU
OP

q

The motor starts and runs only while m] or i-1 key is held
down.

@When the motor is started by pressing START key ((FWDI or [ml > ,

MONITOR mode is selected automatically and output frequency is displayed

l

While inverter output is on (during rotation of the motor) , the mode
indicator lamp just above
dynamic brake operation) .

Notes: 1 . MONITOR mode is not selected automatically when a parameter unit

2. The lamp dose not flicker when a parameter unit of previous

l

[ml l

of previous specification (Spec. No. BKO-C2128) is used.

specification (Spec. No. BKO-C2128) is used.

m (or Ill)

l$ fliekers (the same occurs during DC

cl

(Note 2 .>

(Note 1 >

Examples of operation and indication

OExample where 60Hz is set for desired output frequency (from start to 60Hz)

Set to 60Hz

P

x

OExample where speed is changed during operation (from 60Hz to 30Hz)

z

E

.s

8

6

2

g-Jm3

(Set to 60Hz)

fV

mj iQfjJ$fl: “A’

WEE

E

cl

Start stop

n n

pw9 or -,

REV

Set to 30Hz

SS

W=E

Pressing

m clears alternating display and sets to selected frequency.

-79-

-.-

Note: Direct setting of output frequency is impossible while the MONITOR

c

1

mode indicator lamp is on.
To set output frequency, press

l

JOG operation

JOG mode selection Operation’

Key

hdicatig

0 0 0 b’ ,. 3: 0 0 ..’

NOTES: 1 . JOG mode cannot be selected while the motor is in operation.

press STOP key to stop the motor and then select JOG mode.

2 . To break JOG mode operation, press

3. Desired frequency and acceleration/deceleration time fo JOG mode
operation can be set by specifying the corresponding function

(control variable) . (FUNCTION 15 and 16)

key to break MONITOR mode.

*If the motor does not start,

check the starting frequency.

(FUNCTION 13)

You cannot jog at 5 Hz, if

” Min. Frequency ” is set higher
than 5
Reset 13 and 2 .

HZ.

(FUNCTION 2 )

0

When the inverter is shipped, the JOG frequency and acceleration/
deceleration time are set to 5 Hz and 0.5sec., respectively (it takes

0.04sec. for increaze of frequency up .to 5 Hz) .

0

-8O-

;

4.4 Caution for operation

1. Selection of Operation mode cannot be changed during operation of

r

i-,

operation mode

2. Setting of speed
during speed RPM
setting (2) Speed should not be specified by operating A and

3. Digits of numerical
value and decimal
point 4 digits is entered, the first digit is ignored) .

the inverter.
Note that an operation mode indicator lamp flickers
during operation or the inverter.

When external start signal is on, operation mode cannot
be changed from ” PU operation ” to ” external signal
operation ” (t urn off the signal before changing operation
mode) .

(1) While speed being displayed in. RPM (see P. 901, desired

speed should be specified in terms of RPM.

V keys (step speed setting) .

q

(1) To specify numerical value, maximum 4 -digit numerals

can be entered (if a numerical value of more than

cl

r

Ex.: 12345 . . . .

(2) When ” 0. * * ” (*

entered, ” 0 ” should not be omitted.

” . * * ”

If

4.

Range of setting (1) Direct setting (reference

ten keys)
If a value above the pre-set frequency is entered ir
direct setting, an error occurs.
In this case, ‘press CLEAR key and eter correct
value below pre-set valve.
Range of setting . . . From the minimum frequency limit

to the maximum frequency limit

(When the product is shipped, the maximum

” 2345 ” is entered.

is for any numeral) must be

is entered, it is read as ” * * ” .

frequency is set by operating

0

and minimum frequency limits are set to

OHz and 120Hz respectively.)

-81-

4.

Ex.: If ” 150Hz” is entered, error is displayed as shown

below.

mp=qqQy

This is because the maximum frequency (FUNCTION 1
is already pre-set to 120Hz.

(2) Step setting ( H and/or I‘r( key is pressed to

specify reference frequency)

Reference frequency can be set within the specified
range (from maximum frequency limit to minimum
frequency limit) .
If key is held down while frequency is at the
maximum or minimum limit value, the frequency
remains unchanged.

5. Conditions under
which reference (2) MONITOR mode is selected (step setting is possible

” External signal operation ” mode is selected.

(1)

\

3

frequency during MONITOR mode) .

(or speed) (3) Reference frequency (speed) is out of the specified

is unacceptable

(PU operation frequency. > (FUNCTION . 1 and 2 >

mode)

range. (Above or below pre-set max and min

0

-82-

0

§ 5.

SETTING 0~ CONTROL VARIABLES (PARAMETERS)

(-

hS+V.”

The inverter has various control functions.

To assure the best performance
from your inverter and motor, these functions should be used with care and
thought for application to the driven machine.
These functions can be set, and setting can be checked or changed by
operating the PU.

Control functions and setting method

1 ” READ ” and ” WRITE ” of function . . . . See P.94

1 Change (write) 1

Basic control

[ ftztions 1 functions

Secondary functions
(operating conditions,

&C.)

3 rd Auxiliary functions

functions (calibration. etc.)

H~+KEJ.~ 1

( /ziq ) * piEq

Setting should be
changed after check.

[SET VALUEI l I-1

2

" ALL CLEAR " . . . . .

After pizq is pressed,

1
I I

Prohibition of parameter WRITE

I 3l

By performing the following operation, user’s settings
are reset to the initial settings (i.e., setting made at
shipment of inverter) .

llTTmKl

appears and flickers.

-83-

4

Calibration of frequency meter . . . . . Calibration using PU

(11 Set the frequency for meter full-scale reading* * .
(2) Press m or mj key to start

0

the motor.

(3) Press the following keys to select CALIBRATION mode.

(41 While observing the pointer of frequency meter, press

reading ‘will increase or decrease.
(5) When the meter has been calibrated, ‘press -1 key.
(6) Press m] Key to stop the motor.

* * : For full-scale reading, ” output. frequency at 5 V of frequency

reference voltage ” is specified.

g; @ piJ [GEE]

0

v

When output frequency at 5 V of
frequency reference voltage is 60Hz.

I

A or ]rl key . . . .

0

Note: When ” prohibition of parameter WRITE ” has been set, frequency

meter cannot be calibrated.

IMPORTANT NOTE

This frequency inverter allows you access to multiple control variables which
must be used with care. It has been fully tasted to perform to it’s own
control parameters. But this may not be the case of the electric motor to
which it is to be applied.
If you require to increase the speed of any electric motor over it’s rated
nameplate speed, then you must check with the motor manufacturer first, that
the motor will operate safely and satisfactorily and- that you are not exceeding.
any electrical or mechanical design parameters of the motor.

If in doubt

ASK.

0

-a4-

5.2 Examples of operation

(1) Setting of

Key 1 m -

Display

1 st function (acceleration/deceleration time)

Setting

.

time

of acceleration

Read

present value

Initial setting

Change to IOsec.

Note: When another 1 st function must be set after the 1 st function has

been set, the new desired function can be called by just pressing the
corresponding function

key

(that is, lsETJ key is not required to be

pressed) .

Write

(2) Setting of 2 nd’ function (frequency reference for JOG operation)

Setting of frequency

Read present value Change to 1OHz Write

for JOG operation

\

KCY

Selection of 2 nd function

@Ia.dj -

pjqy-q 1-j [I Irlo.lz_loi

Display

Note: 1 .

2. When another 2 nd function has to be set immediately after a

A dot is placed after p r when the 2 nd function is selected,
like p r. .

(5Hz)

Initial setting

(10Hd

.

2 nd function has already been set, the new desired function can

be called by pressing I 2 nd key, and specifying the function No.

( [=I key is not required to be pressed) .

-85-

(3)

Setting of 3 rd function (examples of bias and gain settings for frequency
reference voltage signal) .

0

Display

Selection of 3 rd function

-

Bias

Note: Do not input frequency

reference signal across terminals

2 and 5.

3

Note: Do not input frequency

reference signal or used 5 V
input signal.

0

-at+

5.3 Caution

1 READ function READ is possible in

as well as ” PU operation ” mode.

It is also possible even during operation of motor.

2 WRITE function

3 Selection of READ and WRITE of 3 rd function are possible only

3 rd function

4

ERROR(Err. >

display

WRITE is possible only in ” PU operation ” mode.

It is impossible during operation of motor (setting of
function No.10 (PWM mode) , however, can be changed

during operation of motor) .

in ” PU operation ” mode.

Error appears when,

(11 WRITE is tried during operation of motor, or

” external sign-al operation ” mode

Clear of ERROR

5.
display

(21 entered value is out of the specified range, or

(3) illegal function No. is set, or

(41 WRITE is tried during ” external signal operation ”

mode, or

(51 WRITE is tried while parameter WRITE has been

prohibited (see 9 5. and Q 9 :> .

Error condition can be cleared as follows:
(11 Press
(2) If error is caused by setting illegal function No.

(see 8 9 .> , press m key.

[CLEAR] key.

-87-

8 6. MONITOR

Output frequency, output voltage (including that during acceleration and
deceleration) ,
condition can be monitored by performing operations described below.

MONITOR is possible after -1 key is pressed.

Inverter output frequency can be read by

t?

pressing [MONITORI key.

s

=I.
B

&

Note: If g

s

a

3

monitoring, MONITOR mode is cancelled
and the preset output frequency is
displayed.

motor current, direction of rotation of motor, and alarm

Operation

key is pressured during

a

Display example

‘0’

,.

0 0 0

0

0 v

Motor current can

8 -1 key.

Note: Motor current during acceleration or

be

read by pressing

2

deceleration can be also displayed.

k
5
2

; 2 Inverter output voltage can be displayed
$? by pressing 1-l key twice successively.

>

Displayed current, however, will not
change if acceleration or deceleration
is momentary.

Alarm code can be read by pressing

[i5izFq three times successively.

.

. ,

h 0 0 0

[Plzlml
, , o o o

9.

0

0 Hz

0 Hz

o *

:a. v

-a8-

0

c

Operation Display example

Notes: 1 . The function is capable of storing

0 Hz

r‘

--,-

a maximum of four alarm codes.
Stored alarm codes canbe read
one after another (see Q 7 for :K o o 0
alarm codes) .

How to read alarm codes

r -:--

Dsplay I
;or 1
I latest I alam alana

1

, alarm ’

-----J

s

.r(
.‘=

-2
8

E

A

-4

--‘~~-JGEJ---+piiG]
3rd ‘2nd 1 st

0

When
the latest alarm code appears
again.

0

When
the output frequency at that time
is displayed.

liikiij

IiiGiiiq

alarm

key is pressed,

key is pressed,

lm~ O *

0 v

(1) For the latest alarm, a dot

is placed by after E (see
an example shown above) .

(2) If no alarm has been stored,

the display is as shown
below.

2. Stored alarm codes are held even
after the inverter is turned off.

, ;,..

-89-

Operation Display example

Speed RPM is displayed, instead of inverter) 0 When ” 4 ” is set for number
output frequency, when the following setting of motor poles . . . (In this

0

has been accomplished.

piq (2 pJ q l ][m\

- 0 v

2

-3
4

2

E”

J

Number of motor poles is set (within
range from 2 poles to 10 poles) .

Speed RPM which corresponds to

inverter output frequency is displayed.

Dis- When speed is monitored in
played N=
speed the label which indicates the

Note: Displayed speed RPM is in

proportion to output frequency.

120X f (Frequency)

P (Number of poles)

example, inverter output
frequency is assured to be
set at 30Hi previously.)

l

Unit used in display

terms of rpm or m/min,

unit (r-pm or m/min) should
be applied to the monitor

display unit over legend ” Hz”

0

a

8

c8

Speed of load (r-pm or m/min) is set

­(within range from 11 to 9998) .

Speed at 60Hz of inverter output frequency
is set.

During ” PU operation ” or ” external
signal operation ” mode, direction of
rotation of the motor can be checked
through the MONITOR indicator lamp.

FORWARD . . . ” Hz ‘I (or ” A ” > lamp lights.
REVERSE . . . “Hz u (or ” A” > lamp flickers.

.o v

This lamp flickers when the
motor rotates in reverse
direction.

0

Operation

Status of inverter during operation can be
monitored through the OPERATION MODE

Display example

indicator lamps (lamps just above
and

The lamp which corresponds to the selected
mode flickers during operation of motor.

g: keys) .

q

IEXT 0~1

During operation, either one of
these lamps flickers.

-91-

b

1.

I

Q 7. DISPLAY

7.1 Alarm display
If failure occurs during operation

automatically.

Alarm code

Display Code

E

2c :

EcL’z EOCZ

E333

E”

UUT

UK? ETHM

EOC 1 Inverter output current exceeded the overcurrent limit during

acceleration.

Inverter output current exceeded the overcurrent limit during
constant -speed operation.

EOC3

EOVT .

Inverter output current exceeded the overcurrent limit, during
deceleration.

Braking regenerative power from motor exceeded the
regenerative overvoltage limt.

Electronic thermal relay in the inverter was activated (current
is below 150% of preset current) .

of the inverter, an alarm code is displayed.

Description

0

E:fl: ETHT Electronic thermal relay in the inverter was activated (current

is over 150% of preset current) .

E: ?f EIPF Instantaneous power failure protective function was activated.

E$: n EFIN

EbE EBE Brake transistor fault detection.

nl

c

E

ULI

ff’E EPE

U” tr EUVT Inverter input voltage fell below the specified limit.

E

c nr E GF

E

EOLT

Temperature of transistor heatsink exceeded the specified limit.

Stall preventive function was activated during constant -speed
operation and .stopped the motor.

Memory in the inverter is corrupted.

Overcurrent due to earth fault on the inverter output side.

0

EU”X: EOHT Externally installed thermal relay activated (overheat) .

EU”PT EOPT Built-in optional unit connection failure during operation.

-“rl-

-Jo--

0

7.2 Indicator lamps in MONITOR mode

r

Y

‘k..-

Indication

0 Hz

OA

ov

7.3 Characters appearing in readout

The alphanumerics which appear in the readout are as listed below.

Latter Display

0

1

Frequency is
displayed.

Motor current
is displayed. flicker.

Output voltage
is displayed.

Jxttcr

A

B

Description

If stall preventive function is activated
during MONITOR mode,
all MODE lamps, other than that selected

Display

El
lzl

r

2

3 cl

4

5 El

6

7 cl 7

8.

9

.3

C

E

F

G

H

I

J

L

c

cl

El

III

c

cl

u’

ill

1.

cl

0

P

T

U

v

r

In

2

cl

El

r

I

cl

II

U

w

Cl

r

cl

-93-

Q 8. LIST OF FUNCTIONS

Function No.
(parameter)

Torque boost (manual) 0 -30%

0

1 Max. frequency limit

2 Min. frequency limit

3 V/F (base frequency) 50 - 360Hz 50Hz

Fi

. ..4 1 st (high speed)

s

5

3

v-4

Multiispeed setting:

4

5 Multi-speed setting:

2 nd (middle speed)

Multi- speed setting:

6

3 rd (low speed)
7 Acceleration time
8 Deceleration time

Electronic thermal relay

9

(overheat)

10 PWM mode
11 DC dynamic brake time 0 -1Osec

Function Setting range

Initial

setting

See P.101
0 -120Hz 120Hz P.98
0 -6OHz

0 -360Hz 608~ P.103

0 -360Hz 30Hz

0 -360Hz

0.1 - 3600sec See P.99 P.99

0.1 - 3600sec See P.99 P.99
0 -999.9A
0 -15 3 P.104

OHz P.98

10Hz P.103

See P.99 P.99

0.5sec P.105

Refer to

P.101

P.102

P.103

0

12 DC dynamic brake voltage 0 -20%

13 Starting frequency

‘14 Load pattern selection

15 JOG frequency

JOG acceleration/

16

f3

.”

s

2 17 deceleration 2 nd acceleration/ time 0.1 - 3600sec 5 set

3 18 High - speed maximum

hl

20 Frequency at 5 V input voltage
21 Stall prevention level ’

22 2 nd stall prevention level

23 2 nd stall prevention level

24 Multi-speed setting: 4 th 0 -360Hz. 9999 9999

deceleration time

frequency limit

19 Base frequency voltage 0 -5oov, 9999 9999

(current)

(frequency)

0.5- 10Hz 0.5Hz P.106
0 (constant torque) o

1 (reduced torque)

0 -360Hz 5Hz P.106

O.l-3600sec 0.5sec P.106

120 - 360Hz 120Hz P-99

1 -360Hz 60Hz P.98

0 -200% 150%
0 -200%

0 -360Hz

See P.105 P-105

150% P.108

OHz P.108

P.102

P.100

P.102

P.107

P.103

0

-94-

0

Function

(parameter)

25 Multi-,speed setting: 5 th 0 -360Hz, 9999 9999 P&103
26 Multi-speed setting: 6 th 0 -360Hz, 9999 9999 P.103
27 Multi-speed setting: 7 th 0 -360Hz, 9999 9999 P.103

Function Setting range

Intial

setting

Refer to

28 Multi-speed input

correction

29 Acceleration/deceleration

pattern selection

0,l 0 P.103

0,192

0 P.100

0.5 -360Hz, 9999

46

Exterrkl thermal relay signal o l loo 1ol
input

77 Parameter WRITE prohibition 0 1

tt,
,

-95-

0 P.109
0 P.97

‘w&ion No.

&m.meter>

78 Reversing prevention

Operation mode selection

79

C- 1 Frequency meter calibration

Function Setting range

Initial

, setting

O,l

0,182

0 -360Hz 60Hz

0

0

Refer to

P.97
P.97
P.111

0

g c-2

-s
j c-3

2 c-4

c- 6 Gain for frequency reference

Least setting increments:

Note * :

Bias for frequency reference
voltage signal

Gain for frequency reference

voltage signal
Bias for frequency reference

current signal

current signal

Frequency . . . . . . . O.OlHz

Time- . . . . . . . O.lsec.

Current

%
Voltage

When a parameter unit of old specification (Spec. No. BKO-C2128)

used, the least setting increment of gain for frequency reference current

. . . . . . . O.lA

. ..*... 1%

. . . . . . . 1v

0 -120Hz OHz

1 -360Hz 60Hz

.O -12OHz

1 -360Hz*

OHz

60Hz

P.lll

P.lll

P.lll

P.111

is

0

signal is 1 Hz.

I

0

-90-