Panasonic MGSD

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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-13

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-12

Wiring of cooling fan motor (F) or motor with thermal protector (TP)

1. The thermal protector (TP) is an automatic reset type. To prevent hazards caused by restarting, connect

the TP as shown above. Don’t connect TP directly to the power supply.

2. Once the TP operates, cooling period is required before the operation can restart.

3. Connect the cooling fan motor (F) across pins 1 and 2 on the power terminal.

4. Motor (M) and tachometer generator (TG) should be connected according to corresponding wiring

diagram shown later.

Wiring to electromagnetic brake (40 W or smaller)

1. Operate SW9 simultaneously with RUN/STOP switching of other switches, if any.

Placing other switch to RUN position while the brake is active (SW9 at STOP position) causes the motor

to generate heat.

2. For remaining wirings, refer to corresponding wiring diagram.

Wiring diagram (for unidirectional rotation)

• Variable speed motor with electromagnetic

brake should be wired as shown below.

• The thick continuous lines represent main circuit. Use conductor of size 0.75 mm

or larger for the main line.

• The thin continuous lines represent signal circuit. Use conductor of size 0.3 mm

or larger in the signal circuit.

When the distance from the tachometer generator (TG) is long, use shielded twisted pair cable.

Used to set the number

of revolutions.

1/4 W, 20 kW, taper B

Capacitor

(supplied with motor)

Motor

White

Gray

Black

Pink

• Soft-start/down control

• Maximum speed control

• Operation changeover switch

DIN terminal block

AT7803

Matsushita Electric

Works, Ltd.

(extra-cost option)

Power

supply

Power switch

(extra-cost option)

External speed changer (VR)

(supplied with the controller)

SW A Momentary N.O. contact

SW B Momentary N.C. contact

Relay

100 V supply system 125 VAC 5 A or more 3a contact

200 V supply system 250 VAC 5 A or more 3a contact

TG(Pink)

TP Blue

F(Black)

Black

White

Gray

Rated voltage

input

F(Black)

SW A

SW B

ClosedClosed

Opened

Run

SWB

ONON ON

SWA

Closed

Closed Closed Closed

Pin No.

Ry Relay

Speed controller

Reset

Pin No.

STOP

Yellow

Motor

Brake

Rated voltage

input

RUN

SW9

Spark killer

SW1

SW9

Spark killer 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

Soft-start and soft-down times can

be adjusted by a single setting.

Use this feature to protect the load

from shock caused by sharp speed

change at startup and shutdown of

the motor.

To disable the soft operation, turn

the control fully clockwise.

Use this control to adjust the

revolving speed when the external

speed changer is set at the top

speed.

Adjust the speed to 1400 (min

–1

) or

below at 50 Hz; or 1700 (min

–1

) or

below at 60 Hz.

Select “high-stable” or “high-

response”:

<High-stable>

• Keeps the rotation speed variation

low against variation in load.

• Enables a wide range of speed

control.

• Suitable for capability control.

• May fail to maintain constant

rotation speed upon sharp load

change.

<High-response>

• Enables quick response with low

hunting.

• Suitable for positioning

application.

• May fail to keep rotation speed

variation low against variation in

load.

• Not suitable for controlling wide

range of speed.

NFB

SW1

NFB

Ground the return circuit to the earth terminal.

(100 Ω or less, ø1.6 mm or more).

Tightening torque: 1.0 to 1.5 N·m

Circuit breaker (NFB)

: 5A

Install a ground-fault

circuit interrupter in

the power supply.

MGSD type

Panasonic MGSD - Page 6

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