Emerson Leroy-Somer FFB Series Operating manual

2015.04 / a
en
Maintenance Guide
Reference: 5287 en -
Maintenance Guide
Brake motors
FFB

20
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
GENERAL WARNING
This document is an addition to the general manual ref. 1889 (recommendations), ref. 4850 (LSES motor), ref. 4155
(LSRPM motor), and manual ref. 5286 (FFB brake installation).
FFB brake motors are assemblies made of an asynchronous motor and a failsafe braking system (safety brake).
This brake motor benets from the experience of a global manufacturer, using cutting edge technologies - automation, selected
materials, thorough quality control - in our motor plants who have been awarded the ISO 9001 - Issue 2008 international
certication.
These symbols appear in this document whenever it is important to take special precautions during installation, operation,
maintenance or servicing of the brake motors.
General danger Electrical hazard Risk of physical injury
These recommendations, instructions and descriptions refer to standard use. They do not take account of non-standard
versions or special adaptations. Failure to comply with these recommendations can lead to premature wear and tear of the
motor and can invalidate the manufacturer warranty.
Make sure that the brake motor 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 disconnected and no residual voltage present
• Careful examination of the causes of the stoppage (blocked transmission - loss of phase - cut-out due to thermal
protection - lack of lubrication, etc.)
Electric brake motors are industrial products. They must therefore be installed by qualied, experienced and authorized
personnel. The safety of people, animals and property must be ensured when tting the motors into machines (please refer
to current standards).
Particular attention must be given to equipotential ground or earthing connections.
Safety of personnel: Protect all rotating devices before power-up. If a brake motor is started up without a coupling device
having been tted, carefully immobilize the key in its location. All measures must be taken to ensure protection against the
risks which arise when there are rotating parts (coupling sleeve, pulley, belt, fan, etc.). Personal protective equipment must
be worn. After work is carried out, the lids of the terminal box and its cover must always be closed.
Beware of backdriving:
- When the motor is switched off. The appropriate precautions must be taken: for example, for pumps a non-return valve must
be installed.
- When the brake motor is tted with an active brake release lock off system (DLM), it is vital to ensure safety (of people
and property) in exposed areas.
Before any intervention on the brake, check that it holds no load.
- After an operating period, certain parts of the brake motor may be hot and are likely to cause burns.

21
en
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
LEROY-SOMER reserves the right to modify the characteristics of its products at any time in order to incorporate the latest
technological developments. The information contained in this document is therefore liable to be changed without notice.
CONTENTS
1 - IDENTIFICATION ............................................................................................................................................... 22
1.1 - Standard nameplate .................................................................................................................................. 22
1.2 - Special marking ......................................................................................................................................... 22
2 - EXPLODED VIEW AND PARTS LIST OF FFB BRAKE MOTORS .................................................................... 23
2.1 - Exploded view ........................................................................................................................................... 23
2.2 - Parts list ..................................................................................................................................................... 23
3 - SPARE PARTS................................................................................................................................................... 23
3.1 - Procedure ................................................................................................................................................. 23
3.2 - Brake motor spare parts............................................................................................................................. 23
4 - MAINTENANCE ................................................................................................................................................. 24
4.1 - Tooling ...................................................................................................................................................... 24
4.2 - Removing the FFB brake motor ................................................................................................................. 24
4.3 - Retting the FFB brake motor .................................................................................................................... 24
4.4 - Adjusting the air gap .................................................................................................................................. 25
5 - CHARACTERISTICS ......................................................................................................................................... 26
5.1 - Braking moments ...................................................................................................................................... 26
5.2 - Electromagnets.......................................................................................................................................... 26
6 - OPTIONS.......................................................................................................................................................27-32
6.1 - DLRA lever - Disassembly / Assembly ....................................................................................................... 27
6.2 - DLM lever - Disassembly / Assembly ........................................................................................................ 28
6.3 - DMD lever - Disassembly / Assembly ........................................................................................................ 29
6.4 - Indicators (Loosening / Wear) ................................................................................................................... 30
6.5 - Standard encoder (incremental, absolute) ................................................................................................ 31
6.6 - Forced ventilation ...................................................................................................................................... 32
6.7 - Connector kit - Assembly / Disassembly .................................................................................................... 32
6.8 - Particular conditions of use ....................................................................................................................... 32
7 - REPAIRING GUIDE ........................................................................................................................................... 33
8 - CONNECTION DIAGRAMS .......................................................................................................................... 34-36
8.1 - Motor: reminder ......................................................................................................................................... 34
8.2 - Brake ........................................................................................................................................................ 34
8.3 - Options ................................................................................................................................................34-36
9 - RECYCLING....................................................................................................................................................... 36

22
IDENTIFICATION
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
1 - IDENTIFICATION
1.1 - Standard plate
Motor nameplate (item 26a)
3 LS 90 L T
S1
IP55
V
230
380
400
415
460
6.85
4.10
3.95
4.00
3.90
50
50
50
50
60
1.80
1.80
1.80
1.80
2.07
0.82
0.85
0.82
0.78
0.82
1435
1425
1435
1445
1735
Hz min-1 kW A
633037E
IEC60034-1
IK08 Ta40°C clF 14.8 kg 1000m
cos ϕ
N° 999999999/001
IP
F-16915 ANGOULEME
NmMf UNVDC
6
5 3 4 11
9 1
Brake nameplate (item 26b)
FFB250NU001
Mf :
26 Nm
S N° : 4446890/000
U : 180 VDC I : 295 mA
Motor size : 145
Nmax : 4500 rpm
II 3 D Ex tc IIIB T125°C Dc
FFB 2
6.10 kg
26 78
11 10
Indispensable information found on the nameplates:
1
Motor series, frame size
2
FFB brake type
3
Speed of rotation (rpm)
4
Rated power (kW)
5
Motor voltage (V)
6
Motor and brake manufacturing no.
7
Mf: Braking torque (N.m)
8
U: Brake coil voltage (VDC)
9
Duty - Duty (operating) factor
10
I: Coil current (mA)
11
Specic (ATEX) marking
Information to be remembered for spare part orders
Denition of symbols
T: Impregnation index
IE2: Efciency class
IP-- IK--*: Protection indices
Ins. Cl.F: Insulation class
(Ta) 40°C: Ambient operating temperature
cos P or j: Power factor
A: Rated current
∆: Delta connection
Y
: Star connection
*IK: Shock resistance
The motor can withstand a weak mechanical shock (IK 08
according to EN 50102). The user must provide additional
protection if there is a high risk of mechanical shock.
Bearings
DE: Drive end bearing
NDE: Non drive end bearing
Marking
: Legal mark of conformity of product to the requirements
of European Directives
C
US
166631
®: CSA certied product, UL conformity
Motor plate LSES112MU 4kW, 4p, 400V
Y
Brake motor plate with inverter LSES112MU 4kW, 4p,
400V
Y
1.2 - Special marking
Upon receiving the brake motor, check that the information
nameplate complies with contractual specications.
(e.g. brake motor operating in dusty explosive atmospheres;
in this case: non conductive dust.)

23
en
EXPLODED VIEW AND PARTS LIST OF FFB BRAKE MOTORS
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
1300
1303
1302
0054
0006
0050
0002
1110
0071
0084
0021
0022
0005
0023
0039
0039
0005
0030 0060
0060
0004 0001 0629 0026 0014 0059 0629
1304
1301
1300
1100
1305
1306
1101
1306
1102
1103 1107
1200
1104
1105
1500
1503 1501
1504
1400
1401
0007
0009
0027
0013
1407
1406
1402
1505
1502
1106
1108
1305
1101
1102
1107 1200
1108 1109 1106
1400
1401
0008 0007
1406 1407
0013
0027
0009
1402
1105
1104
1103
1306
1100 FFB1
FFB2 ---> FFB5
+ DLRA
IM B14
IM B3
IM B5
3 - SPARE PARTS
3.1 - Procedure
Always indicate the following when ordering spare parts:
- complete motor type, its number and the information
indicated on the information plate (refer to §1);
- serial no. of the brake information plate item 26b;
- the numbers and descriptions of the parts (record the part
marks in the exploded view §2.1 and their description in the
parts list §2.2).
For motors with a xing ange, specify the ange and its
dimensions (IM B5 smooth holes, IM B14 tapped holes or
built-in assembly MI) and the details of the coupled reduction
gear if applicable.
To ensure proper operation and safety of our brake motors,
always use original manufacturer parts.
Maintenance kits are available. Refer to LSAS or the
following sites:
www.leroy-somer.com
or
www.emersonindustrial.com\Services-pour-systemes-d-entrainement.aspx
Otherwise, the manufacturer shall waive any liability in
case of damage.
3.2 - Spare parts
Item (item)
Type Polarity 30 50 39 54 1101 1107 1300 1306 1402
LS 71 L, M 2; 4; 6 6202 C3 6201 C3
gasket disc1gaskets
LS 80 L 2; 4; 6 6204 C3 6203 CN
(F)LS(ES) 80 LG 4 6205 C3 6204 C3
(F)LS(ES) 90 SL, L 2; 4; 6 6205 C3 6204 C3
(F)LSES 90 LU 4 6205 C3 6205 C3
(F)LS(ES) 100 L 2; 4; 6 6206 C3 6205 C3
(F)LSES 100 LG 4 6206 C3 6205 C3
(F)LSES 100 LR 4 6206 C3 6205 C3
LSES 112 M 4 6206 C3 6205 C3
Item (item)
Type Polarity 30 50 39 54 1101 1107 1300 1306 1402
(F)LS(ES) 112 MG 2; 4; 6 6206 C3 6205 C3
gasket disc1gaskets
(F)LSES 112 MU 4 6206 C3 6206 C3
LS(ES) 132 S, SU 2; 4; 6 6208 C3 6206 C3
(F)LS(ES) 132 SM, M 2; 4; 6 6308 C3 6207 C3
LSES 160 MR 4 6309 C3 6308 C3
LSES 160 MP 2 ; 4 6309 C3 6208 C3
(F)LSES 160 M 4 ; 6 6309 C3 6210 C3
(F)LSES 160 L, LR 4 6309 C3 6210 C3
1. When changing the brake disc only, the braking moment is achieved only once the friction surfaces are run in.
2 - EXPLODED VIEW AND PARTS LIST OF FFB BRAKE MOTORS
2.1 - FFB brake motor exploded view
2.2 - FFB brake motor parts list
Item Description Qty Item Description Qty Item Description Qty
1 Stator 1 30 Front bearing (DE) 1108 Wire guide (item 1105) 1
2 Housing 1 39 Front sealing gasket (DE) 1 1109 Obturating cap 2
4 Rotor 1 50 Bearing brake side (NDE) 1 1110 Brake supply unit 1
5 Front shield (DE) 1 54 Sealing gasket on brake side (NDE) 1 1200 Compression spring 3 to 10
6 Back shield (NDE) 2 59 Preload washer 1 1300 O-ring (between item 6 and item 1100) 1
7 Fan 1 60 Internal circlips (DE item 30) 1 1301 Splined ring key (item 1302) 2
8 Fan spacer (item 7) 0 or 1 71 Terminal box 1 1302 Splined ring 1
9 Locking circlips (item 7) 1 or 2 84 Terminal board 1 1303 Locking circlips (item 1302) 1
13 Fan cover 1 629 Drain hole plug 1 or 2 1304 Spacer 0 or 1
14 Assembly rods 3 or 4 1100 Friction face plate 1 1305 Fixing screw (item 1100) 3 or 4
21 Shaft end key (DE) 1 1101 Brake disc 1 1306 O-ring (item 1101) 2
22 Shaft end spacer 1 1102 Armature 1 1400 Extension/shaft link screw (item 1401/4) 1
23 Tightening screw (item 22) 1 1103 Safety pins 3 or 4 1401 Extension shaft 1
25 Lifting eye (H.A. ≥ 100) 2 1104 Adjustment spacer 3 or 4 1402 VLS gasket (item 1105) 1
26a Motor nameplate 1 1105 Brake yoke 1 1406 Cover closing hatch 1
26b Brake nameplate 1 1106 Fixing screw (item 1105/1100) 3 or 4 1407 Fixing screw (item 1406) 4
27 Cover xing screw (item 13) 4 1107 O-ring 1 1500 to 1505: DLRA option (see § 6.1)
xx Spare part

24
CORRECTIVE MAINTENANCE
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
4 - CORRECTIVE MAINTENANCE
Before any operation on the brake, always
disconnect the brake motor from its power supply
(Putting in writing).
4.1 - Tooling (not supplied)
Tools
Function
Adjustment shims Air gap adjustment
Torque wrench Tightening for assembly of brake parts
Open end, handle, box
wrench (M8/10/16, etc.)
Removal of the face plate, extension,
yoke, DLRA, DLM, DMD
Special socket Screw and unscrew the shaft end
extensions
Hub puller Splined ring removal
Bearing puller
Bearing change: refer to manual §3.2
Mallet (leather or plastic) Lift the keys from the splined ring
Multimeter Voltage check
Ohmmeter (indicator lamp) Coil resistance measurement, micro-
contact adjustment
Circlip pliers
Circlip removal
VLS assembly jet Gasket tting
Large at blade screwdriver Fan removal
2 threaded rods: M5
(FFB1), M6 (FFB2 and 3)
and M8 (FFB4 and 5)
and corresponding nuts
Retting the armature on yoke
2 large at blade
screwdrivers Fan removal
Always record the connections of the supply
wires and options before disconnection.
Similarly, record the position of anges with
respect to the stator and the fan's direction on the rotor.
4.2 - Removing the FFB brake motor
- Remove the brake motor using appropriate tools.
- Disconnect the brake motor from its supply.
- Open the terminal box, record the wires and their position
(supply of the brake motor, encoder, probes, etc.). Always
record the connections of the supply wires and options before
disconnection.
- Disconnect the supply wires from the motor and brake
supply terminal strips (+ and - terminals).
- Disconnect the rectier bridge and check the stator isolation
(> 10 MOhms).
- If the brake is tted with a DLRA, DLM or DMD system,
unscrew the lever rod(s) (item 1502, 1605).
- Unscrew the cover screws 27, remove the metal cover 13.
- Remove the fan 7 by removing the axial locking circlips 9.
- Extract the fan 7 using two screwdrivers as levers.
- Remove the VLS gasket 1402.
- Unscrew the xing screws from the yoke 1106.
- Remove the yoke 1105 from the brake, remove the O-ring
1107, extract the armature 1102 while recording its angular
position.
- Remove the brake disc 1101 while recording the assembly
direction (large hub shoulder on motor side).
- Unscrew the xing screws 1305 from the face plate, then
remove the face plate 1100.
- Unscrew the extension 1401 while blocking the drive shaft.
- Remove the circlips 1303.
- Extract the splined ring 1302 using a puller.
- Remove the keys 1301 from the ring.
- Find all the faulty parts to order spare parts. Refer to §2.
• Clean the parts:
- by blowing the electrical parts and the brake parts 1100 to
1108 (no solvents, no humid products);
- using a non greasy degreasing product for mechanical
parts (item 1101 excepted);
- using a scraper for joints.
• Change the gaskets and bearings. Refer to §2 and 3.
4.3 - Retting the FFB brake motor
Clean the bleeding ports and plugs before retting.
Verify that no pollution distorts item 1105.
Tightening screw according to NF E 25030-1 or
VDI2230.
- Reverse the procedure for retting: keys 1301, ring 1302,
face plate 1100 (with locating pin: position the outer spigot
opposite the coil cable), brake disc 1101.
- Position the armature 1102 (non through drill hole on one
face located at 9 o'clock with respect to the yoke cable) on
the yoke 1105 tted with its springs. Screw the two threaded
screws through the yoke into the armature while ensuring it
does not protrude the braking face (slight recess). Press the
armature onto the yoke using two nuts mounted onto the rods
(tighten each rod gradually).
- Install the O-ring 1107 inside its groove between the
armature 1102 and the yoke 1105.
- Mount the yoke and armature onto the face plate using the
xing screws 1106 (tighten to torque).
- Check that the brake disc turns freely.
- Remove the two threaded rods: the brake disc is blocked.
- Ret the fan 7 and its holding washers 8and 9.
- Ret the cover 13.
- Ret the control rod of the DLRA, DLM lever(s) if necessary.
If Encoder option: see §6.5
If Forced Ventilation option (VF) + Encoder: refer to §6.6 and
6.5.
Include sufcient
distance around the
brake for access and
intervention.

25
en
CORRECTIVE MAINTENANCE
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
4.4 - Air gap adjustment
Adjust the air gap when normal loosening is no longer
possible. Always check the pad's thickness when adjusting to
ensure pad wear does not exceed the R dimension in mm (i.e.
R/2 on either side of the disc 1102). Its change is compulsory
before the lenght R between each brake lining reaches:
Brake size
Minimum R dimension
FFB1, FFB2, FFB3 9 mm
FFB4, FFB5
15 mm
Exceeding R dimension can cause security
problems (quick decrease of braking torque Mf).
- Unscrew the screws 27 holding the metal cover 13.
- Remove the metal cover 13.
- Clear the O-ring 1107 to gain access to the air gap.
- Check the air gap between the yoke 1105 and armature
1102 in 3 points at 120°.
- Release spacers 1104, move them closer to the yoke 1105.
- Screw the xing screws 1106 while measuring the air gap
between the yoke and the armature to obtain a dimension of
0.3 mm. If release lever (DLM or DMD) presence, set to 0.6
mm.
- Screw the spacers 1104 in abutment on friction face-plate
(tighten to 2 Nm ±10% torque).
- Tighten xing screws 1106 brake yoke on face-plate to the
torque as follows: FFB1: 4.9 N.m; FFB2 and 3: 8.5 N.m; FFB4
and 5: 21 N.m ±10%.
- Check the value of the air-gap again.
- Reposition the O-ring 1107 into its groove.
- Fasten the cover 13 with its screws 27.
When DLRA or DLM mounted, refer to §6.1, 6.2.
1102
R
lining

26
CHARACTERISTICS
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
5 - CHARACTERISTICS
5.1 - Braking moments
The braking moment is defined according to the number of springs and their colour, based on the values indicated in the table
below.
Running-in: All brake linings, complete brake (Brake disk only: see section 3.2) are already run-in in the factory before assembly
onto the motor. The dynamic braking moment indicated is optimum (tolerance -10 to +40 %).
Braking moments (N.m) specied for information; in case of normative restriction, please consult us.
FFB1 FFB2 FFB3 FFB4 FFB5
Nbr of
springs Colour Mf (N.m) Colour Mf (N.m) Colour Mf (N.m) Colour Mf (N.m) Colour Mf (N.m)
3
Purple
(RAL 4008)
4.5
White
(RAL 1013)
11 - -
Brown
(RAL 8017)
41 - -
4
6
15
-
-
55
-
-
57.5 19
Orange yellow
(RAL 2000)
37 69 - -
6
9
23
45
83
Black
(RAL 9005)
120
710.5 26 52 96 140
8
12
30
59
110
160
9- - - - 67 - - 180
10
- - - - 74 - - 200
5.2 - Electromagnets
As certain direct current coils are difficult to differentiate by
their dimension, measure the coil's resistance using an
Ohmmeter on an appropriate calibre and compare with the
value indicated in the table below.
These values are theoretical, calculated for an ambient
temperature of +20°C.
Characteristics of the electromagnets ±5 %, at +20°C
180V coil
ESFR VMA 31 to 34
20V coil
Type
brake
Intensity
A
Resistance
Ω
Power
W
Intensity
A
Resistance
Ω
Power
W
FFB1
0.232
776
42
1.974
10.1
39
FFB2
0.295
610
53
2.633
7.6
53
FFB3
0.345
522
62
2.793
7.2
56
FFB4
0.339
530
61
3.602
5.6
72
FFB5
0.547
329
98
4.211
4.8
84

27
en
OPTIONS
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
6 - OPTIONS
6.1 - DLRA lever
- Exploded view
1500
1502
1503 1504
1501
1505
0008
0007
0009
0013
0027 1406 1407
- Parts list
Item Description Qty Item Description Qty
7 Fan 1 1500 Stud 2
8 Fan thrust washer 0 or 1 1501 DLRA calliper 1
9 Locking circlips 1 1502 DLRA control rod 1
13 Fan cover 1 1503 Spiral spring under nut 2
27 Cover xing screw 3 or 4 1504 Locknut 2
1406 Cover closing hatch 1 1505 Return spring (item 1501) 1
1407 Fixing screw 4
• Disassembly:
- Unscrew the rod from the lever 1502 (if mounted on the
lever).
- Unscrew the xing screws 27 from the cover, remove the
metal cover 13.
- Remove the fan 7 by removing the axial locking circlips 9.
- Extract the fan 7 using two screwdrivers as levers.
- Unscrew the two locknuts 1504, remove the spiral springs
1503.
- Remove the return spring 1505.
- Remove the calliper 1501.
- Unscrew the two studs 1500.
After loosening, check that the brake is in the
applied position once the maintenance
operations are performed.
• (Re)Fitting:
Proceed the other way round of dismantling. Screw studs at
the following torque: FFB1: 5.75 Nm; FFB2 and 3: 9.9 Nm;
FFB4 and 5: 24 N.m ±10%.
- When screwing the locknuts 1504 again, add a 1.6 mm
clearance between the calliper 1501 and the yoke 1105.
- After tting the cover, loosen the xing screws 1407, fully
screw the control rod 1502 onto the calliper 1501.
- Position the cover closing hatch 1406 while checking
that the lever's travel is effective (in brake release
position).
- Tighten the xing screws 1407.

28
OPTIONS
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
6.2 - DLM lever
- Exploded view
1505
1605
1602
0008
0007
0009
0013 0027 1406 1407
1502
1500
1501 1503 1504
1600 1603
1601 1604 1800
- Parts list
Item Description Qty Item Description Qty
7 Fan 1 1503 Spiral spring under nut 2
8 Fan thrust washer 0 or 1 1504 Locknut 2
9 Locking circlips (item 7) 1 1505 Return spring (item 1501) 1
13 Fan cover 1 1600 Stud (item 1601) 2
27 Cover xing screw (item 13) 3 or 4 1601 Latch 1
1406 Cover closing hatch 1 1602 Rotation axis (item 1601) 1
1407 Fixing screw (item 1406) 4 1603 Locknut 2
1500 Stud (item 1501) 2 1604 Return spring (item 1601) 1
1501 DLRA calliper 1 1605 Control rod (item 1601) 1
1502 DLRA control rod 1 1800 Spacer 1
• Operation
Releasing the brake and maintaining it in position: push
the control rod DLRA 1502 by applying a force towards the
rear of the brake motor, then swivel the rod of the DLM 1605
clockwise. Release the DLRA rod 1502 to lock the brake in
the released position.
• Disassembly:
- Unscrew the control rods of the levers 1502 and 1605 (if
mounted on their base).
- Unscrew the screws 27 from the cover, remove the metal
cover 13.
- Remove the fan 7 by removing the axial locking circlips 9.
- Extract the fan 7 using two screwdrivers as levers.
- Remove the return spring 1604.
- If applicable, unscrew the latch stop 1606.
- Unscrew the hexagonal spacer (catcher springs) DLM 1800.
- Unscrew the rotation axis of the latch 1602 then remove the
latch 1601.
- Unscrew locknuts 1603.
- Unscrew studs 1600.
- Remove the DLRA according to the procedure in section 6.1.
• Reassembly:
Proceed the other way round of dismantling. Screw the
rotation axis of the bolt 1602 at the following torque: FFB1, 2
and 3: 5.75 Nm; FFB4 and 5: 9.9 Nm, ±10%.
Screw the hexagonal spacer DLM 1800 to the torque of
5.75 Nm ±10% for FFB1 in 5. Screw the studs at the following
torque: FFB1 : 5.75 Nm; FFB2 and 3: 9.9 Nm; FFB4 and 5: 24
Nm, ±10%.
After any loosening operation, check that the
brake is in the applied position once the
maintenance operations are performed.
Working position of the DLM lever:
16051605
1502
Item 1605
unlocked
Locking
direction
Item 1605
locked

29
en
OPTIONS
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
6.3 - DMD lever
- Exploded view
1502 1505
1600 1603 1605
1702 1602
1703 1704 1700 0008
0007
0013 0027 1406 1407
0009
1701
1601
1504
1503
1501
1500
- Parts list
Item Description Qty Item Description Qty
7 Fan 1 1505 Return spring (item 1501) 1
8 Fan thrust washer (item 7) 0 or 1 1600 Stud (item 1601) 1
9 Locking circlips (item 7) 1 1601 Latch mecanism 1
13 Fan cover 1 1602 Rotation axis (item 1601) 1
27 Cover xing screw (item 13) 3 or 4 1603 Locknut 1
1406 Cover closing hatch 1 1605 Control rod (item 1601) 1
1407 Fixing screw (item 1406) 4 1700 Electromagnet plate assembly 1
1500 Stud (rep.1501) 2 1701 Plate xing screw (item 1700) 3
1501 DLRA calliper 1 1702 Contact pallet 1
1502 DLRA control rod 1 1703 Washer under screw (item 1704) 1
1503 Spiral spring under nut 2 1704 Pallet xing screw (item 1702) 1
1504 Locknut 2
• Operation
For brakes tted with a DMD, supply the brake coil separately
from the motor. Once the brake is released, supply the
electromagnet on the latch control plate. Once the latch
contact is triggered, power off the brake coil then the control
plate. The brake is maintained in the released position. When
brake power is restored, locking drops automatically and the
brake is operational.
• Disassembly:
- Disconnect the electromagnet plate 1700.
- Unscrew the control rods of the levers 1502 and 1605 (if
mounted on their base).
- Unscrew the screws 27 from the cover, remove the metal
cover 13.
- Remove the fan 7 by removing the axial holding circlips 9.
- Extract the fan 7 using two screwdrivers as levers.
- Unscrew the screws 1701 from the electromagnet plate
1700, then remove the plate.
To remove the latch (DLM) refer to § 6.2 and the (DLRA) refer
to § 6.1.
• Reassembly:
Reverse the removal procedure.
- When retting the mechanical link between the latch and
the plate, adjust the contact pallet 1702 using the screw and
washer 1703, 1704.
Adjusting must be done with the rod in; check that the pallet
1702 actually activates the microcontact of the electromagnet
plate 1700. Lock the xing screws 1703.
- Ret the fan...
After any loosening operation, check that the
brake is in the applied position once the
maintenance operations are performed.
Working position of the DMD lever:
16051605
1502
Item 1605
unlocked
Locking
direction
Item 1605
locked

30
OPTIONS
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
6.4 - Marks (Loosening-Wear)
6.4.1 - Wear mark
- Exploded view
1906
1100
1907
1102
1904
1905
- Parts list
Item Description Qty
1100 Face plate 1
1102 Armature 1
1904 Wear indicator microcontact 1
1905 Fixing screw on item 1904 2
1906 Contact screw on item 1904 1
1907 Lock nut (item 1906) 1
• Operation:
For brakes tted with a wear indicator, if the brake pad is
worn (+ 0.6 mm) the armature actuates the microcontact
fastened on the back plate, indicating that the air gap requires
adjustment or the pad changed, when the latter is thinner than
the minimum required (see procedure "Air gap adjustment"
§2.5).
• Adjustment and removal:
To adjust the microcontact 1904, engage the screw 1906
into the armature 1102, position a 0.5 mm shim between the
screw head and the microcontact sensor 1904. Unscrew the
screw 1906 until hearing the "click" of switching. Block the
screw 1906 with the lock nut 1907 then remove the shim.
For disassembly, return to the beginning of the cover removal
procedure. Unscrew the screws 1905 then remove the
microcontact 1904. Unscrew the locknut 1907 then unscrew
the contact screw 1906.
6.4.2 - Loosening indicator
- Exploded view
1901 1900
1105
1903
1902
1102
- Parts list
Item Description Qty
1105 Yoke 1
1102 Armature 1
1900 Loosening indicator microcontact 1
1901 Fixing screw (item 1900) 2
1902 Contact screw on item 1900 1
1903 Lock nut (item 1902) 1
• Operation:
For brakes tted with a loosening indicator, when the brake
is supplied, the armature actuates a microcontact (on-off)
fastened to the yoke, indicating brake opening. Upon a power
failure, the microcontact changes state to conrm brake
closing.
• Adjustment and removal:
To adjust the microcontact 1900, engage the screw 1902
into the armature 1102, position a 0.2 mm shim between the
screw head and the microcontact sensor 1900. Unscrew the
screw 1902 until hearing the "click" switching. Block the screw
1902 with the lock nut 1903 then remove the shim.
For disassembly, return to the beginning of the cover removal
procedure. Unscrew the screws 1901 then remove the
microcontact 1900. Unscrew the locknut 1903 then unscrew
the contact screw 1902.

31
en
OPTIONS
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
6.5 - Standard encoder (incremental, absolute)
- Exploded view
1401
0159
1403
0007
1404 0009
0013
0027
0299
1801
1800
1800
1402
- Parts list
Item Description Qty Item Description Qty
7 Fan 1 1401 Extension 1
9 Locking circlips (item 7) 1 1402 VLS seal 1
13 Ventilation cover 1 1403 Fan adapter socket 1
27 Cover xing screw (item 13) 3 or 4 1404 Socket xing screw 1
159 Encoder 1 1800 Spacer 1 or 2
299 Fixing screw 2 1801 Anti-rotation spacer extension 0 or 1
• Disassembly, Replacement:
- Disconnect the encoder (connector fastened to the body of
the terminal box).
- Unscrew the screws 27 from the cover, remove the metal
cover 13.
- Unscrew the screw 1404 and remove the fan with its socket
1403 and the circlips 9.
- Unscrew the screw 299, unscrew the encoder hooping ring
(radial screw) from the extension 1401; remove the encoder.
- Remove the VLS seal 1402. Remove the extension shaft
1401; dismount hexagonal spacer 1800 and anti rotation
spacer extension 1801.
• Reassembly:
Proceed the other way round of disassembly.
- Fit the extension lead 1401 and tighten to the following
torque: FFB1: 2.9 Nm; FFB2 to 5: 5.75 Nm, ±10%. Replace
the spacer 1800 tightened to the torque of 5.75 Nm. Check
the beating ≤ 0,05 mm. Replace the spacer extension 1801
and tighten to the torque of 5.75 Nm ±10% for FFB1 up to 5.
- Fit the (new) encoder on the shaft extension 1401.
- Block the encoder by screwing to the torque of 0.8 Nm ±10%
the screw 299 on the spacer extension 1801.
- Tighten the encoder xing screw to the torque, according to
supplier instruction (Heidenhain: 1.1 Nm ±0,1 N.m; Hengstler:
0.6 Nm ±5%; Ideacod: 1.5 Nm ±10%).
- Fit the fan adapter socket 1403, screw 1404 to the torque of
3 Nm ±10%. Insert the fan 7on the socket 1403 then block on
the axis with fan lock washer 9.
After intervention, always close the cover(s) of
terminal boxes and the caps.

32
OPTIONS
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
6.6 - Forced ventilation kit
- Exploded view
0007
0027
1405
0013
- Parts list
Item Description Qty
7 Forced ventilation 1
13 Forced ventilation cover 1
27 Cover xing screw (item 13) 3 or 4
1405 Yoke borehole plug 1
• Disassembly, Replacement:
- Unscrew the screws 27 from the cover, remove the cover 13
tted with forced ventilation.
When replacing the standard auto-ventilation with forced
ventilation, remove the fan 7 by removing the axial holding
circlips 9 (see §2.1), remove the extension 1401 and stop with
plug 1405.
• Reassembly:
- Reverse the removal procedure.
6.7 - IP65 10 pin 16A connector kit
The LSES 71 to 132 4-pole motors can be tted with a
connector compliant with UL and CSA standards as per the
following two versions:
- WMS or male version, closed with lead cover
- WMFS or full version, with female extension cover on the
side, docking brass PE ISO 25 for cable entry (not supplied)
between 12.5 and 18 mm.
See connection diagram § 8.
6.8 - Particular conditions of use
- Thermal protections (§8)
- Heating resistors (§8)
- Surface temperatures:
As standard, the maximum temperature of our brake motors
is +125°C with a maximum ambient temperature ≤ +40°C.
Without derating the brake motor, the maximum surface
temperature shall be:
• +135°C if 40°C ≤ 50°C
• +145°C if 50°C ≤ 60°C
Caution: The motor's surface temperature during
operation requires wearing PPEs when handling
parts and during maintenance operations.
- Maintenance of main bearings:
When detecting the following on the brake motor:
• abnormal noise or vibrations,
• abnormal heating on the bearing, check their condition.
Change damaged bearings as soon as possible to prevent
additional damage to the brake motor and driven devices.
When one bearing requires to be changed, also change the
other bearing. The oating bearing shall ensure expansion of
the rotor shaft (check its identication upon disassembly).
Always change the sealing gaskets when changing the
bearings.
- Sealing
After removing the bleeding plugs, ret them to ensure
the brake motor achieves the IP55 protection rating.
- Gaskets, bearings
1 year
(or 8000 h)
Inspect the state of the gaskets and bearings at the
shaft passage (items 39, 54, 1402).

33
en
REPAIR GUIDE
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
7 - REPAIR GUIDE
Incident
Possible cause
Remedy
Abnormal noise
From motor or driven machine?
Disconnect the motor from the driven device and test the motor alone
Noisy brake motor
Mechanical cause: if the noise persists after powering off
- Vibrations
Check that the key complies with the type of balancing
- Check the condition of the bearings
- Faulty bearing
- Change the bearings as soon as possible
- Mechanical friction: ventilation, coupling
- Check and change the faulty part
Electrical cause: if the noise stops after power drops
- Check the supply at the motor terminals
- Check the drive setting
- Normal voltage and 3 phases balanced
- Check the plate connection and strip tightening
- Abnormal voltage
- Check the supply line
- Unbalance of phases
- Check the resistance of windings
Other possible causes:
- bad drive setting
- drive malfunction
Refer to the drive manual
Abnormal motor
heating
- Faulty ventilation
- Check the environment
- Clean the ventilation cover and the cooling ns
- Check the tting of the fan onto the shaft
- Faulty supply voltage
- Check
- Strip coupling error
- Check
- Overload
- Check the intensity absorbed with respect to that indicated in the motor
information plate
- Partial short circuit
- Check electrical continuity of the windings and/or the installation
- Phase unbalance
- Check the resistance of windings
Other possible causes:
- bad drive setting
Refer to the drive manual
Motor does not start
Empty:
- Mechanical blocking
- Release the brake and motor powered off:
check by hand that the shaft turns freely
- Power supply line interrupted
- Check the fuses, electric protection, starting device
- Position return (drive message)
- Check the wiring, drive setting, operation of the position sensor
- Thermal protection
- Check
In charge:
- Unbalance of phases
Powered off:
- Check the rotation direction (order of the phases)
- Check the resistance and continuity of the windings
- Check the electric protection
- Drive
- Check the setting, dimensioning (Max current delivered by the speed
drive)
- Position return (drive message)
- Check the wiring, drive setting, operation of the position sensor
- Thermal protection
- Check
The brake does not
release
- The voltage is present at the coil's terminals
The air gap is too big, the yoke does not attract the armature
- Adjust and check disc wear
The voltage is too low U < 0.8Un
- Restore the voltage to its nominal value
The coil is off, its resistance is innite
- Change the complete brake unit or the coil
- The lever rod is in abutment on the cover
- See adjustment section 6.1 ref.1406
- Mobile parts are stuck
- Remove, clean, and look for the cause of sticking
- No more voltage at the coil terminals
The cell is inoperative
- Test it
- Drive
- Check that the brake supply is separate from the motor's
The call time is too
long
- Check the voltage at the coil terminals
The voltage is too low U < 0.8Un (Un: according nominal power supply)
- Restore the voltage to its nominal value
- The air gap is too wide
- Readjust
- The braking moment has increased
- Return to the initial setting or consult
The drop time is too
long
- Check that the power off is performed on the direct
- Connect the cell as per the mark (A) power off on the direct
The brake is noisy
when released
- Irregular or excessive air gap
- Remove if necessary and clean (see §4)
- Foreign material in the air gap
- Clean
- Extension shaft 1401 tted incorrectly
- See encoder reassembly section 6.5
- Drive
- Check that the brake supply is separate from the motor's
The braking moment
is insufcient
- The friction faces are not clean and dry
- Clean the friction faces
- Redene the braking moment
- Pollution due to environment
- Clean friction faces. If disc is marked, replace it
- The disc is worn
- Change the disc
The brake is applied
(drops) but braking
is weak
- Insufcient spring pressure
- Check pad wear. Increase the number of springs
- Correct spring pressure
- Check the surface wear of the armature
- Use a blower to clean dust due to friction
Permanent pad
friction
- The air gap is insufcient
- Adjust the air gap

34
CONNECTION DIAGRAMS
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
8 - CONNECTION DIAGRAMS
8.1 - Motor: reminder
Check the rotation direction of the drive shaft.
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
123 4
Check the brake wiring according to the power
supply.
8.2 - Brake: diagram under the TB cover
8.2.1 - 180VDC brake coil for standard 1-speed
brake motor
DEBRANCHER LE BLOC REDRESSEUR
POUR ESSAI D'ISOLEMENT OU DIELECTRIQUE
DISCONNECT THE RECTIFIER CELL WHEN
TESTING FOR CURRENT INSULATION OR DIELECTRIC.
634118 fr-en/f
IMPORTANT
1 vitesse - 2 tensions (rapport 1.732) 1 bobinage
1 speed- 2 voltage (ratio 1.732) 1 winding
W2 T6
U1 T1
U2 T4
V1 T2
V2 T5
W1 T3
W2 T6
U1 T1
U2 T4
V1 T2
V2 T5
W1 T3
**S08
**S08
**débrancher les shunts dans le cas
d'une alimentation séparée
**disconnect the shunts
for separate power supply
(A) coupure sur continu : temps de réponse réduit
obligatoire en levage : ENLEVER LE STRAP
(A) DC braking : shorter response time
Mandatory for lifting application : REMOVE WIRE
Schéma de branchement frein / Brake connection diagram
Alimentation
Power supply
Bobine
Coil
400V AC
230V AC
230V AC
127V AC
180V DC
100V DC
180V DC
100V DC
Câblage*
Cabling*
2
1
Bobine/coil
Alimentation
Power supply
S O8
~
~
~_-
+++
(A)
±15%
2
1
*suivant alimentation et bobine
* according power supply and coil
*suivant alimentation et bobine
* according power supply and coil

8.2.2 - 180VDC brake coil for 2-speed motor with
2 windings, 1 voltage, built-in supply
IMPORTANT
Débrancher le bloc redresseur
pour essai d’isolement ou diélectrique
Disconnect the rectifier cell when testing
for current insulation or dielectric
1U2 2U2 1 U1
+-
2
SO3
Bobine/coil
350V AC à/to 460V AC 180V DC
200V AC à/to 265V AC 100V DC

8.2.3 - 20VDC brake coil, separate power supply
24V - (F)LS(ES) 71 to 160
IMPORTANT
Débrancher le bloc redresseur
pour essai d’isolement ou diélectrique
Disconnect the rectifier cell when testing
for current insulation or dielectric
Schéma de branchement
Connection diagram
FREIN - BRAKE
Coupure sur le continu
(obligatoire en levage)
ENLEVER LE STRAP
Connection for shorter
response time
(mandatory for hoisting)
REMOVE THE STRAP
24V
20V
E F
S O6
~
~
~-
+

8.2.4 - Connection for reduced response time
TRR: built-in power supply mandatory
Frein
brake
2 noir/rouge
2 black/red
Alim. / P. supply
400V AC
Bobine / Coil
180V DC
230V AC 100V DC
+-
2 blanc
2 white
634 108 / b
W2 U2 V2
U1 V1 W1
W2 U2 V2
V1 W1
U1

8.3 - Options
8.3.1 - Standard thermal protections, class F,
150°C
Thermal
protections
Double PTO Triple CTP
Cut-off current 1.6A - cosφ 0.6 -
RMS voltage
250V
2.5V max
Fixing on clamp terminal + ag
(purple/white)
on board
(except HA71: on
clamp terminal)
+ ag (black/black)
8.3.2 - Standard thermal probes
Thermal probes
PT100
KTY
Measurement
current
10mA max 10mA max
RMS voltage
-
-
Fixing
on clamp terminal
(3 wires black/red/black)
on clamp terminal
(brown/white)
8.3.3 - Indicators
Indicators
Loosening indicator
(Open/Close)
Wear mark
Current
6A
6A
Voltage
250V
250V
Fixing
on clamp terminal
(3 wires blue/black/grey)
Black/Blue = NO Black/Grey = NC
on clamp terminal
(3 wires blue/black/grey)
Black/Blue = NO Black/Grey = NC
NO: normally open; NC: normally closed

35
en
CONNECTION DIAGRAMS
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
8.3.4 - Encoders 
Standard incremental encoder: 5VDC 1024 pts/tr or 4096
pts/tr
Separate supply brake
Identification Process : POC 2 Classement / File : T10C003
CAHIER DES CHARGES CODEURS /
ENCODER TECHNICAL SPECIFICATIONS
Révision : F
Date: 24/02/2014 Page : 3 / 9
DEPARTEMENT Annule et remplace / Cancels and rep
laces :
Q1T053 Révision E du/of 07/05/2013
Doc type : S6T002 Rev A du/of 12/12/2011 M R I


1.2.2 Connectique LEROY-SOMER
Vue sur l'embase
connecteur mâle coté codeur
*NC = Non Connecté
(libre)
Blindage / carter connecteur
1.2.3 Raccordement des masses
La connexion de masse dans les connecteurs doit respecter les règles de la CEM via une reprise de
masse à 360°C au niveau du presse-étoupe sur le corps du codeur et dans le PE du connecteur.
1.2.4 Étiquettes signalétiques
Il doit y avoir 2 étiquettes de même matière comportant au moins le n° de série, type, tension,
nombre de points:
- Une étiquette sur le corps du produit
- Une étiquette en drapeau sur le câble du codeur à 50mm du connecteur
(Texte lisible facilement)


N° borne
1 0V
2 +VCC
3 A
4 B
5 0
6 A
7 B
8 0
9 NC
10 NC
11 NC
12 NC
Standard absolute encoder: SSI - 10/30VDC 8192 pts 4096 tr
Separate supply brake







Pin layout
17-pin
HEIDENHAIN coupling
Power supply Incremental signals Other signals
7 1 10 4 11 15 16 12 13 3 2
UPSensor
UP
0 V Sensor
0 V
Internal
shield
A+ A– B+ B– Vacant Vacant
Brown/
Green
Blue White/
Green
White / Green/
Black
Yellow/
Black
Blue/
Black
Red/
Black
Red Black
Absolute position values
Shield on housing; UP= power supply voltage
Sensor: The sensor line is connected internally with
the corresponding power line.
Vacant pins or wires must not be used!
14178956
DATA DATA CLOCK CLOCK Vacant Vacant
Gray Pink Violet Yellow Green Brown
Fore more Information see
Catalog Rotary encoders•
Electrical Connection
519 974 · 01 · A · 22 · pdf · 7/2008 · Subject to change without notice



 
 


Terminal No.
1
0V
2
+VDC
3
A
4
B
5
0
6
A
7
B
8
0
9
NC
10
NC
11
NC
12
NC
View of the male socket on the encoder side
NC: Non Connected (free)
8.3.5 - Forced ventilation 
Single phase forced ventilation for LS 71
I N
U1 = blue
U2 = brown
U1 U2
230 V single
phase for HA71
C
Single phase forced ventilation for (F)LS(ES) 80 to 132
Motor type
Condensers
CP1CP2
LS 80 1.5 µf 1.5 µf
LS 90 to 132
U = 230V Supply on U and W
U = 400V Supply on V and W
3 µf 2 µf
Brown
Blue
Black
CP2
Z
U
CP1
WV
Single phase ventilation 230 or 400 V
for HA 80 --> 132
Three phase forced ventilation for (F)LS(ES) 160
THREE PHASE FORCED VENTILATION
HA 160
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

36
RECYCLING
FFB Brake Motors Maintenance Guide
5287 en - 2015.04 / a
8.3.6 - Plug-in connector
Côté Client / Customer side
Côté Moteur / Motor side
Côté Client / Customer side
Côté Moteur / Motor side
Relais
de
contrôle
Pilot
relay
L2
L3
L1
2
3
4
5
16
7
8
9
10
CTP/PTC
PTO/PTF
2
16
7
3
4
5
8
9
10
FREIN ALIMENTATION SÉPARÉE
SEPARATE BRAKE POWER SUPPLY
L2
L3
L1
2
3
4
5
16
7
8
9
10
CTP/PTC
PTO/PTF
2
16
7
3
4
5
8
9
10
Coupure sur le continu : côté moteur connecter les 2 fils bleus (bornes 1 et 2) à la place du strap de la cellule SO8
DC breaking : connect on motor side the two blue leads (terminals 1 and 2 ) instead of SO6 strap
634128/b
PT 100
PT 100
Relais
de
contrôle
Pilot
relay
W2
U2
V2
ou
or
U1
V1
W1
ou
or
W2
U2
V2
U1
V1
W1
400V AC
230V AC
Alimentation frein
Brake supply
FREIN ALIMENTATION INCORPORÉE
BUILT-IN BRAKE POWER SUPPLY
S O8
~~_-
+++
S O8
~~_-
+++
Alimentation / Power supply : 400V AC
Alimentation / Power supply : 230V AC
Bobine/coil : 180V DC
Bobine/coil : 180V DC
2
1
Alimentation / Power supply : 400V AC
Alimentation / Power supply : 230V AC
Bobine/coil : 180V DC
Bobine/coil : 180V DC
2
1
2
1
Bobine
Coil
Bobine
Coil
2
1
8.3.7 - VARMECA 31 / 32
U
V
W
Supply to 2nd motor
(mains voltage output)
: 400/480V mains
Brake
180VDC
1
: 230V mains
2
U
ESFR
PE
PE
VW
+- F2
L1 L2 L3
F1
Power supply mains*
230/400V
*NOTE: For single phase versions,
the supply is made on the L and
N terminals.
To brake
coil
Dual-alternate
(208-240VAC)
Supply to 2nd motor (variable
voltage and frequency output)
Mono-alternate
(380-480VAC mains)
Ribbon cable
to options connector
L1
L3
S08
+ ++
1 2
ESFR VMA 31/32
8.3.8 - VARMECA 33 / 34 option
Opto Triac
Fu:
VMA 33/34T
180 VDC
VMA 33/34TL
100 VDC
Dedicated logic output
AC power supply for a 2nd brake
1.25 A
600 V
L1
L3
F1
F2
ESFR VMA 33/34
9 - RECYCLING
At end of life, call upon a material disposal company to
dispose of the different brake motor components.