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6

WIRING DIAGRAMS

Installation guide FFB brake motors

5286 en - 2017.09 / c

2.3.1 - Terminal box (TB) of FFB brake motors

The standard terminal box of the FFB brake motor has holes 

on sides 1 and 3:

- frame size 71 to 132 S, SU: 4 x ISO M20x1.5

- frame size 132 SM, M, MU to 180: 2 x ISO M25x1.5 and 2x 

ISO M20x1.5 (6 with accessories) 

These holes are closed with threaded plugs. 

An optional cable gland kit is available, otherwise procure the 

necessary cable glands in accordance with the table below:

1-speed

2-speed

accessories

DOL  

starting, YΔ

1 Dahlander 

wdg

2 wdgs

1 voltage

2 wdgs 

2 voltages

1 or 2

1

> 2

2

LS 71

1 ISO 20a

2 ISO 20a

1 ISO 

20a

1 ISO 

20a

+

1 ISO 

12

(F*)LS(ES) 80 ->132S, SU

1 ISO 20

2 ISO 20

(F*)LS(ES)ES 132M, MU

1 ISO 25

2 ISO 25

(F*)LS(ES) 160

2 ISO 25

2 ISO 25

*FLS: Add an ISO 12 on side 4 for brake connection in the terminal box

1 or 2

1

: one ISO 20a per option: separate power supply, sensors, resistors, 

DMD, etc.

> 2

2

: one ISO per option: sensor, indicator lamps, etc.

2.3.2 - Optional cable gland (PE)

The cable sizes below are given for guidance only; follow the 

supplier's instructions.

LS(ES) series

Polyamide cable gland   

Cable gland 

type

Standard cable gland (polyamide)
Cable size

Tightening torque

Min. cable Ø

(mm)

Max. cable Ø

(mm)

Gland and body

(N.m)

ISO 20a

5

12

2

ISO 20

7

14

2

ISO 25

9

18

3

FLS(ES) series

Brass anchoring cable gland

  

Cable gland 

type

Brass anchoring cable gland

Cable size

Tightening torque

Min. cable Ø

(mm)

Max. cable Ø

(mm)

Gland and body

(N.m)

ISO 20a

6

10

4

ISO 20

8

12

4

ISO 25

11.5

18

6

The terminal box is watertight once the cable glands have been 

fitted and each cable gland is tightened on the cable according 

to its cable size.

Adapt the cable gland and its reducer if present to the diameter 

of the cable being used.

In order to maintain the brake motor's original IP55 protection, 

it is essential to ensure the cable gland provides a total seal by 

tightening it correctly (so that it cannot be unscrewed by hand).

When there are several cable glands and some are not being 

used, ensure that they are always covered (threaded plugs) 

and tighten them so that they also cannot be unscrewed by 

hand.

1. Cable gland not 

tightened

2. Cable gland seal in 

contact

3. Turn with a wrench

(360°)

3 - WIRING DIAGRAMS

3.1 - Motor 

Check the motor direction of rotation.

 L1 - L2 - L3

 L1 - L3 - L2

1 SPEED - 2 VOLTAGES

        L1 - L2 - L3

W2

U2

V2

L1

L2

L3

U1

V1

W1

W2

U2

V2

L1

L2

L3

U1

V1

W1

Side 4

Side 3

Left

Side 1

Right

Ø min.

Ø max.

Ø min.

Ø max.

Summary of Contents for LEROY-SOMER FFB

Page 1: ...en Installation guide Brake motors FFB Before any intervention or operation for preventive or corrective maintenance please download NECESSARILY the update version of Maintenance guide reference 5287...

Page 2: ...is compatible with its environment before its installation and also throughout its life The following preliminary precautions must be taken before working on any stationary device Mains voltage disco...

Page 3: ...iable to be changed without notice CONTENTS 1 RECEIPT 4 1 1 Identification 4 1 2 Storage 4 2 RECOMMENDATIONS 4 2 1 Commissioning 4 2 2 Mechanical installation 4 2 2 1 Brake with options 5 2 3 Electric...

Page 4: ...d check the winding insulation resistance phase earth resistance higher than 10 M Drain any condensation water 2 RECOMMENDATIONS 2 1 Commissioning The brake motor is designed to operate at the speeds...

Page 5: ...th a wear indicator while the brake is supplied with power the armature actuates a microswitch discrete fixed on the yoke If the brake lining is worn 0 6 mm the microswitch is actuated and informs the...

Page 6: ...e gland Cable gland type Standard cable gland polyamide Cable size Tightening torque Min cable mm Max cable mm Gland and body N m ISO 20a 5 12 2 ISO 20 7 14 2 ISO 25 9 18 3 FLS ES series Brass anchori...

Page 7: ...ect the rectifier cell when testing for current insulation or dielectric Sch ma de branchement Connection diagram FREIN BRAKE Coupure sur le continu obligatoire en levage ENLEVER LE STRAP Connection f...

Page 8: ...Power supply 230V AC Bobine coil 180V DC Bobine coil 180V DC 2 1 2 1 Bobine Coil Bobine Coil 2 1 Wiring diagram for Reduced response time option Built in power supply mandatory Frein brake 2 noir rou...

Page 9: ...og the cover grille and the housing fins Lubricate the bearings of the motors fitted with grease nipples Cleaning Precautions to be taken before carrying out any cleaning operation check that the brak...

Page 10: ...at least If the brake is not equipped with a release application indicator check the clearance periodically according to the rates and the energy to be dissipated on each braking operation see technic...

Page 11: ...0034 9 2005 A1 2007 60034 14 2004 A1 2007 60079 0 2012 A11 2013 60079 31 2014 60529 1991 A1 2000 IEC 60034 5 2000 A1 2006 60034 6 1991 60034 7 1992 A1 2000 60034 9 2003 A1 2007 60034 14 2003 A1 2007 6...

Page 12: ...Moteurs Leroy Somer Headquarter Boulevard Marcellin Leroy CS 10015 16915 ANGOUL ME Cedex 9 Limited company with capital of 65 800 512 RCS Angoul me 338 567 258 www leroy somer com...

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