Panasonic MGSD

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* Please read your User's manual carefully so that you will understand the operation and safety precautions before attempting to operate the system.

C-15

Speed controller Brake Unit Options Index

EX type

Speed controller

* Please read your User's manual carefully so that you will understand the operation and safety precautions before attempting to operate the system.

C-14

Unidirectional rotation and electric brake

1. When SW2 and SW3 are switched from RUN to

STOP, electric braking is applied for approx. 5

sec, or until the motor stops.

SW2 and SW3 must be operated

simultaneously. Otherwise, abnormal operation

occurs (full speed rotation for a short time),

causing the motor temperature rises

excessively.

2. The number of start/stop cycles must be 6/min.

or less.

3. When using cooling fan motor or motor with

thermal protector, also see page C-20.

4. Insert R1 and C1 to protect relay contact.

5. R2 restricts discharge current in case of

capacitor short circuit during braking.

1. Connect a fixed resistor (R3) in place of

external speed changer (VR).

• When no external speed changer is required,

the speed can be adjusted from the

maximum speed control.

1. Power (SW1) should be turned on at least 0.5

sec before turning on of the start signal (SW6).

2. When the motor is not operated for a

prolonged time, turn off power switch (SW1).

1. Connect a fixed resistor (R3) in place of

external speed changer (VR).

• When no external speed changer is required,

the speed can be adjusted from the maximum

speed control.

• With the external speed changer connected,

the motor can be started/stopped with a small

signal through SW6 contact while the power

switch SW1 (see diagram above) is on. The

SW6 provides shorter start-up time than SW1.

Start/stop control with small signal Operation from maximum speed control Operation from maximum speed control

1. To change rotating direction of induction motor:

Provide a motor halt period. Switch over SW2 after complete stop of the motor.

2. To change rotating direction of reversible motor:

A motor halt period is not necessary. Switch over SW2 while keeping SW1 turned ON. When configuring

SW2 with relay contacts, use a relay having large gap between contacts (e.g. HG/HP relay from

Matsushita Electric Works, Ltd.) to prevent malfunction due to short-circuited capacitor.

3. For motors for cooling fan and motors with thermal protector, also refer to page C-20.

4. When using independent relay contacts for SW2 to change over normal/reverse, interlock both contacts so

that they will not close simultaneously.

5. The spark killer consisting of R1 and C1 must be used to protect the relay contacts.

SW1 : Power switch

SW2 : RUN/STOP switch

SW3 : Brake start switch

Run

Stop

STOP

SW2

SW3

SW1

Pin No.

R3 20 kΩ 1/4 W

To TG

STOP

RUN

SW3

Run

RUNRUN

Braking

Speed change only

SW1 : Power switch

SW2 : Normal/reverse selector switch

Normal Reverse

RUN RUN

SW1

SW2

CCW

Pin No.

Capacitor

Pink

Gray

Black

White

Motor

Rated voltage

input

Pin No.

Capacitor

Pink

Black

Motor

Rated voltage

input

Gray

White

SW2

CCW

C1R1

Pin No.

RUN

SW6

DC10V 10mA

STOP

Pin No.

R3 20 kΩ 1/4 W

To TG

Stop

SW1

Run

External speed changer

(DVOP002)

1/4 W, 20 kW, taper B

Pin No.

Capacitor

Pink

Gray

Black

White

Motor

Rated voltage

input

STOP

RUN

SW3

SW2

Pin No.

Capacitor

Pink

Gray

Black

White

Motor

Rated voltage

input

STOP

RUN

SW3

SW2

Speed controller

Unidirectional rotation Normal/reverse rotation

SW1

SW2

R1+C1 DV0P008 (option)

100 V supply system 5 A or more at 125 VAC

200 V supply system 5 A or more at 250 VAC

This wiring diagram causes the motor to rotate clockwise

when viewed from the motor shaft end.

To run the motor counterclockwise, interchange the

connecting point of black and gray leads.

25 W or smaller

40 W or larger

• Connection according to this wiring

diagram causes the motor to rotate

clockwise when viewed from the

motor shaft end. To run the motor

counterclockwise, interchange the

connecting point of black and gray

leads.

SW1

SW2

SW3 DC10 V 10 mA

R1+C1 DV0P008 (option)

R2 DV0P003 (option)

100 V supply system 5 A or more at 125 VAC

200 V supply system 5 A or more at 250 VAC

SW1

NFB

SW1

NFB

SW1

NFB

SW1

NFB

Panasonic MGSD - Page 7

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