Mitsubishi Z200-UL Instruction Manual

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

r

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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.

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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

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............... 38 -’

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

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

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

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

.

.

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............... 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) .

\.

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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

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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.

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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

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--..-.. ,.. .-. 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) .

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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

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-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.

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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

.:

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0