Orientalmotor SB50W, Operating Manual

5

Suitableycrimpyterminal

Use insulated crimp terminals, as shown below, for connection.

[Unit:ymmy(in.)]

Ringytypeyterminalywithyinsulation

Uytypeyterminalywithyinsulation

Ø3.7 (Ø0.146) or more

7.6 (0.299) or les

s

9 (0.354) or more

9 (0.354) or more

3.7 (0.146) or more

7.6 (0.299) or les

s

Capacityyofyprotectionydevicesy(suchyasycircuityprotectors)

When a motor is stopped suddenly, a large half-wave rectified current flows 

through the motor for 0.2 to 0.4 seconds. When connecting a protective device 

such as a circuit protector to the motor, refer to the table below for the braking 

current and select its current capacity.

Motoryoutputypower

Brakingycurrenty[A]y(Peakyvalue)

100yV/110yV/115yV

200yV/220yV/230yV

1yW

1.0

0.3y

∗

6yW

1.6

1.0

15yW

5.3

2.5

25yW

9.7

4.4

40yW

16

8.2

60yW

23

12

90yW

34

17

∗

In case of power-supply voltage is 200 V.

„

z

Connection„example„of„source„logic

9

ALARM output

6

8

4

7

5

CCW operation input

+24 V

CW operation 
input

Brake pack

terminal No.

GND

Brake release input

24 VDC  
0.1 A or more

+

-

FG

Connections to the AC power supply and motor conform to the sink logic.

Operation

This section covers the methods of operating and (instantaneously) stopping a 

motor using the brake pack.

„

„

Induction„motor,„reversible„motor

Start/instantaneousystop

• Set the brake release input to "OFF."

• Turning CW operation input to "ON" will operate the motor in the CW 

direction, while turning it to "OFF" will trigger an instantaneous stop.

• Turning CCW operation input to "ON" will operate the motor in the CCW 

direction, while turning it to "OFF" will trigger an instantaneous stop. This 

function is not applicable to an induction motor which has four lead wires.

Start/stop

• Set the brake release input to "ON."

• Turning CW operation input to "ON" will operate the motor in the CW 

direction, while turning it to "OFF" will stop the motor.

• Turning CCW operation input to "ON" will operate the motor in the CCW 

direction, while turning it to "OFF" will stop the motor. This function is 

not applicable to an induction motor which has four lead wires.

The stopping time varies, depending on its inertial and frictional loads.

Note

y

•

Whenyanyinductionymotorywhichyhasyfouryleadywiresyisy

toybeystartedyory(instantaneously)ystoppedyinytheyCCWy

direction,ybeysureytoychangeytheymotor’syleadyconnections.

y

•

Anyinductionymotorymustybeycompletelyystoppedybeforey

switchingyitsydirectionyofyrotation.

y

•

IfytheyCWyoperationyinputyandyCCWyoperationyinputyarey

setytoy"ON"ysimultaneously,ytheyCWyoperationyinputywillybey

givenypriority

y

•

DoynotysetytheyCWyoperationyinput,yCCWyoperationyinputy

orybrakeyreleaseyinputytoyONybeforeyturningyonytheyACy

power.ySettingytheseyinputsytoyONybeforeyturningyonythey

ACypowerywillynotyenableymotoryoperation.y

AnyALARMyindicatorywillylightyandyALARMyoutputywilly

switchytoy"OFF."

„

„

Motor„with„electromagnetic„brake

Start/instantaneousystopywithytheyelectromagneticybrakeyenabled

• Set the brake release input to "OFF."

• Turning CW operation input to "ON" will "release" the electromagnetic 

brake and operate the motor in the CW direction. 

Turning it to "OFF" will trigger an instantaneous stop. 

The electromagnetic brake will be "activated" in order to hold the load in 

position the moment the motor stops.

• Turning CCW operation input to "ON" will "release" the electromagnetic 

brake and operate the motor in the CCW direction. 

Turning it to "OFF" will trigger an instantaneous stop. 

The electromagnetic brake will be "activated" in order to hold the load in 

position the moment the motor stops.

Start/stopywithytheyelectromagneticybrakeydisabled

• Set the brake release input to "ON."

• Turning CW operation input to "ON" will operate the motor in the CW 

direction, while turning it to "OFF" will stop the motor.

• Turning CCW operation input to "ON" will operate the motor in the CCW 

direction, while turning it to "OFF" will stop the motor. 

Setting the brake release input to "ON" will "release" the electromagnetic 

brake. To move the load of the motor with electromagnetic brake manually, 

set the brake-release input to "ON."

Note

y

•

IfytheyCWyoperationyinputyandyCCWyoperationyinputyareysety

toy"ON"ysimultaneously,ytheyCWyoperationyinputywillybeygiveny

priority.

y

•

DoynotysetytheyCWyoperationyinput,yCCWyoperationyinputyory

brakeyreleaseyinputytoyONybeforeyturningyonytheyACypower.y

SettingytheseyinputsytoyONybeforeyturningyonytheyACypowery

willynotyenableymotoryoperation.

„

„

Timing„chart

AC power supply

ON

OFF

CW operation input

ON

OFF

CCW operation input

ON

OFF

ON

OFF

CW

CCW

CW

CCW

CW

Stop

Stop

Stop

Stop

Operation

Operation

Operation

Operation

Brake release input

Electromagnetic
brake

Clockwise

rotation

Movement

Counterclockwise

rotation

Motor

DC power supply

ON

OFF

∗

4

∗

1

∗

3

∗

1  Do not set the CW operation input, CCW operation input or brake release 

input to ON before turning on the AC power.  

Setting these inputs to ON before turning on the AC power will not enable 

motor operation.

ޓ

   An ALARM indicator will light and ALARM output will switch to "OFF."

∗

2  The brake release input serves as the ALARM-RESET input when the 

ALARM output is OFF.

∗

3  Only for motor with electromagnetic brake 

∗

4  The induction motor will not accommodate instantaneous forward/reverse switching.

Natural stop

Braking

Braking

Braking

Reversing

Holding

Holding

Holding

Holding

Holding

∗

1

∗

1

∗

2