Emerson Leroy-Somer FFB User manual

2015.04 / a
Reference: 5286 en -
4
Installation guide
Brake motors
FFB
en

12
Installation guide FFB brake motors
5286 en - 2015.04 / a
GENERAL WARNING
This document complements general manual ref. 1889 (recommendations), ref. 4850 (LSES motor), ref. 4155
(LSRPMmotor),andspecicmanualref.5287(FFBbrakemaintenance).
FFB brake motors are units consisting of an induction motor and a failsafe braking system (safety brake).
This brake motor benets from the experience of one of the largest manufacturers in the world, using state-of-the-art technology in
automation, specially selected materials and rigorous quality control. As a result, the regulatory authorities have awarded our motor
factories the ISO 9001 - Edition 2008 international certicate.
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.

13
Installation guide FFB brake motors
5286 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 - RECEIPT ............................................................................................................................................................ 14
1.1 - Identication ............................................................................................................................................. 14
1.2 - Storage ...................................................................................................................................................... 14
2 - RECOMMENDATIONS ..................................................................................................................................... 14
2.1 - Commissioning ......................................................................................................................................... 14
2.2 - Mechanical installation............................................................................................................................... 14
2.2.1 - Brake with options ............................................................................................................................................... 15
2.3 - Electrical connection.................................................................................................................................. 15
2.3.1 - Terminal box ....................................................................................................................................................... 16
2.3.2 - Optional cable gland............................................................................................................................................ 16
2.4 - Wiring diagrams......................................................................................................................................... 16
2.4.1 - Motor................................................................................................................................................................... 16
2.4.2 - Brake coil............................................................................................................................................................. 17
2.4.3 - Encoders............................................................................................................................................................. 17
2.4.4 - Forced ventilation unit ......................................................................................................................................... 18
2.4.5 - Options................................................................................................................................................................ 18
3 - REGULAR SERVICING ..................................................................................................................................... 19
4 - PREVENTIVE MAINTENANCE.......................................................................................................................... 20
en

14
RECEIPT
Installation guide FFB brake motors
5286 en - 2015.04 / a
1 - RECEIPT
Check the state of the brake motor; if there is any damage to
the motor or even its packaging, inform the carrier.
Check that the brake motor conforms to the order (mounting
arrangement, information on the nameplates).
1.1 - Identication
Motor nameplate
Brakenameplate
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
Essential information included 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
Informations to be remembered for spare parts orders
Denitionofsymbols
T: Impregnation index
IE2: Efciency class
IP-- IK--: Index of protection*
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
1.2 - Storage
Store the equipment in a clean, dry location, protected
from shocks, vibrations, variations in temperature and in an
environment with relative humidity of less than 90%.
Storage for longer than 6 months leads to special conditions,
we will be happy to discuss these with you.
After storage for a period of more than 6 months, disconnect
the brake power supply unit and check the winding insulation
resistance (phase/earth resistance higher than 10 MΩ). Drain
any condensation water.
2 - RECOMMENDATIONS
2.1 - Commissioning
The brake motor is designed to operate at the speeds indicated
on the nameplate (do not exceed the maximum speeds stated
in our technical catalogues).
Comply with the voltages and frequencies indicated on the
nameplate (do not deviate by more than 5% from the voltage
extremes on the nameplate and by more than 1% from the
frequencies).
For hoisting applications, do not use a motor that is not rated
S3 (except for variable speed). Do not use a motor with a
different duty type from that on the nameplate no. ➈.
2.2 - Mechanical installation
(Also see manual 1889)
If the brake motor has been stored at a temperature lower
than -10°C, heat it and turn the shaft manually before starting
up the machine.
If the brake motor is to be used at a temperature lower than
-25°C, it must not be tted with a sensor. It can be tted with
thermocouples.
Ensure there is minimum clearance (corresponding to
thelengthofthecover)atthenon-driveendofthebrake
motor so it can be put down (inspections and brake
adjustments).
Install the brake motor in conditions conforming to those on
the order (temperature, relative humidity, altitude).
When the brake motor is tted with lifting rings, these are
for lifting the brake motor on its own (tighten the ring, if
necessary, before handling).
Mount the brake motor in the position specied on the order,
on a at, rigid base in order to prevent distortion and vibration.
Ensure the xing screws are tightened to the correct tightening
torque (class 8.8 minimum according to ISO 898-1), the screw
diameter must be the right size for the xing holes.
Ensure the mechanical shafts are aligned and the coupling
and pulley are mounted in accordance with good practice.
➅ ➀
➄ ➈
➂ ➃

15
RECOMMENDATIONS
Installation guide FFB brake motors
5286 en - 2015.04 / a
Donotknock the motor (terminal box, cover), the shaft or
the coupling during mounting, do not crush the seal, do not
project beyond the shoulder of the shaft.
Ensure correct brake motor cooling, the air intakes and outlets
must be kept clear.
Check that the loads applied to the motor shaft (especially
the belt tension) are compatible with the values stated in our
technical catalogues.
2.2.1 - Brakewithoptions
-Auto-returnhandbrakerelease(DLR A)
For brakes tted with a lever, push it towards the back of the
brake motor.
Whenever the brake has been released, make sure that
it is engaged once any maintenance operations have been
completed.
See dismantling/reassembly procedure in ref.5287 FFB
maintenance.
-(Manual)brakereleaselockoffsystem(DLM)
For brakes tted with a DLM, proceed in the same way as the
DLRA to release the brake and then turn (clockwise) the DLM
handle in line with the DLRA to lock the brake in the released
position. When the brake is next powered up, it is engaged
automatically and the brake is operational again.
See dismantling/reassembly procedure in ref.5287 FFB
maintenance.
-Remote(electrical)brakereleaselockoff(DMD)
For brakes tted with a DMD, supply the brake coil with
power separately from the motor. Once the brake is released,
supply the electromagnet on the lock control board with
power. Once the locking contactor is engaged, switch off the
brake coil power supply and then that of the control board.
The brake is held in the released position. When the brake is
next powered up, it is engaged automatically and the brake is
operational again.
Whenever the brake has been released, make
sure that it is engaged.
- Release indicator (open/close)
For brakes tted with a release indicator, while the brake is
supplied with power the armature actuates a microswitch
(discrete) xed on the backplate indicating brake release.
When the power is switched off, the microswitch changes
state in order to conrm that the brake is engaged.
- Wear indicator
For brakes tted with a wear indicator, while the brake is
supplied with power the armature actuates a microswitch
(discrete) xed on the yoke. If the brake lining is worn
(+ 0.6 mm) the microswitch is actuated and informs the user
of the need to adjust the air gap or change the brake lining if it
is less than the required minimum (See the “Adjusting the air
gap” procedure in ref.5287 FFB maintenance).
2.3 - Electrical connection
The cables should be connected with the power off
by qualied personnel, in accordance with good
practice, in compliance with the safety conditions.
Choose the protection system and cables according
to the information on the nameplate (the voltage drop
during the starting phase must be less than 3%).
Tighten the terminal lock nuts, connectors and power supply
cables to the torque stated below (N.m):
Terminal
M4 M5 M6 M8
Steel 1 2.5 4 10
If using cables without connectors, attach calipers.
- Do not place washers or lock nuts between the motor
connections and the connections on the power supply cable.
Connect the thermal protection devices and accessories
(section 2.4.5).
Ensure that the cable gland is watertight (the cable gland
must always correspond to the diameter of the cable used).
Incorporate a bend where the cable enters the terminal box
to prevent water entering via the cable gland.
Check the motor direction of rotation (section 2.4.1).
The internal terminal box connections must never be put
under any stress due to the cables connected by the user.
Earthing
It is mandatory to earth the brake motor (in the terminal
box and on the brake), and earthing must be performed in
accordance with current regulations (protection of workers).
Powersupply (see wiring diagrams under the terminal box
cover, section 2.4).
Brake motors with a built-in power supply are connected like
standard motors. They are tted with a DC coil (180 VDC).
The brake is supplied directly from the motor stator
(230/380/400/415/460/480 V) via a brake power supply unit,
rectier mounted in the terminal box.
For motors with different voltages, starting at reduced
voltage or operating at variable voltage or frequency, a
separate brake power supply must be provided. (The same
applies to a 20 VDC coil).
To reduce the brake application response time (mandatory
in Hoisting applications), it is necessary to switch off the
brake DC power supply at the same time as that of the
motor, usually via an auxiliary contact on the motor starting
contactor.
en

16
RECOMMENDATIONS
Installation guide FFB brake motors
5286 en - 2015.04 / a
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 and 160: 2 x ISO M25x1.5 and
2x ISO M20x1.5
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 21> 22
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
10/03/15
(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 21: one ISO 20a per option: separate power supply, sensors, resistors,
DMD, etc.
> 22: 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
tted 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°)
2.4 - Wiring diagrams
2.4.1 - 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
➀ ➂ ➃➁
Ø min.
Ø max.
Ø min.
Ø max.

17
RECOMMENDATIONS
Installation guide FFB brake motors
5286 en - 2015.04 / a
➀ and ➁ Brakemotor:wiringdiagramundertheTBcover
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
Checkthebrakewiringaccordingtothepower
supply
2.4.2 - 180VDCbrakecoil
(A) coupure sur continu : temps de réponse réduit
obligatoire en Usage Levage : ENLEVER LE STRAP
(A) DC braking : shorter response time
Mandatory for lifting application : REMOVE WIRE
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
➁ 20 VDC brake coil:
Wiring diagram for the separate 24 V power supply option
(frame sizes 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
~
~
~-
+
➁ 180 VDC brake coil:
2-speed motor, 2 windings, 1 voltage, built-in power 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
2.4.3 - Encoders
➂Standard incremental encoder: 5 VDC 1024 (or 4096)
rev - Brake with separate power supply
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
➂Standardabsoluteencoder: SSI 10/30 VDC, 4096 rev -
Brake with separate power supply (ex. supplier)







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



 
 


- Switch off the power supply before performing any
connection operations (connection or disconnection, with or
without connectors) at the encoder or cabinet end.
- For reasons of synchronization, power up and power
down the encoders and any associated electronic devices
simultaneously. On the rst power-up, check that the
“supply +” terminal is supplying the required voltage before
connection.
- For the supply, use stabilized power supplies.
Power supplies via transformers providing 5 V (or 24 V) rms,
followed by rectiers and smoothing capacitors, must not be
used, as in reality the resulting DC voltages obtained are:
For 5 V: 5x√2 = 7.07 V
For 24 V: 24x√2 = 33.936 V
Brake
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 male connector base at the encoder end
NC: Not Connected (free)
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18
RECOMMENDATIONS
Installation guide FFB brake motors
5286 en - 2015.04 / a
-Removable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
SEPARAT
E BRAKE POWER SUPPL
Y
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
C
oupure 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 SUPP
LY
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
Wiring diagram for Reduced response time option - 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
2.4.4 - 230Vor400Vforcedventilationunitfor
framesize≤160
LS71(F)LS(ES)80to132
Motor type
Capacitors
CP1 CP2
LS 80 1.5 mf 1.5 mf
LS 90 to 132 3 mf 2 mf
U = 230V Power supply on U and W
U = 400V Power supply on V and W
Brown
Blue
Black
CP2
Z
U
CP1
WV
L N
U1 = blue
U2 = brown
U1 U2
1-ph 230 V
for frame size 71
230 or 400 V SINGLE-PHASE FORCED VENTILATION
for frame size 80 --> 132
C
(F)LS(ES)160
THREE-PHASE FORCED VENTILATION
for frame size 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
2.4.5 - Options
- Thermal protection
Standard thermal protection Class F, 150°C
Double PTO Triple PTC
Breaking current 1.6 A - cos φ 0.6 -
rms voltage
250 V
2.5 V max
Mounting on clamp terminal + ag
(purple/white)
on terminal block
(except
frame size 71: on clamp terminal)
+ ag (black/black)
Heat sensors
PT100
KTY
Measuring
current
10 mA max 10 mA max
rms voltage
-
-
Mounting
on clamp terminal
(3 wires - black/red/black)
on clamp terminal
(brown/white)
Indicators
Release indicator
(Open/Close) Wear indicator
Current
6 A
6 A
Voltage
250 V
250 V
Mounting
on clamp terminal
(3 wires - blue/black/gray)
Black/Blue = NO Black/Gray = NC
on clamp terminal
(3 wires - blue/black/gray)
Black/Blue = NO Black/Gray = NC
NO: normally opened; NC: normally closed
-VARMECA31/32withESFR
(Also see VMA manual ref. 3776)
U
V
W
Power supply to 2nd brake
(AC voltage output)
: 400/480 V supply
Brake
180 VDC
1
: 230 V supply
2
U
ESFR
PE
PE
VW
+- F2
L1 L2 L3
F1
AC supply*
230/400 V
*NOTE: For single-phase
versions, the power supply
is connected to terminals L and N.
To brake coil
Full wave
(208-240
VAC supply)
Power supply to 2nd motor
(variable voltage and frequency output)
Half wave
(380-480 VAC supply)
Ribbon cable to options connector
L1
L3
S08
+ ++
1 2
ESFR VMA 31/32
-VARMECA33/34withESFR
(Also see VMA manual ref. 3776)
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

19
REGULAR SERVICING
Installation guide FFB brake motors
5286 en - 2015.04 / a
3 - REGULAR SERVICING
Checksafterstart-up
After approximately 50 hours’ operation, check that the screws
xing the motor and the coupling device are still tight. In the
case of chain or belt transmission, check that the tension is
correctly adjusted. Check the electrical connections. Check the
vibrations. Check that there is no abnormal noise. If the brake
wear needs to be checked: measure the air gap to check that
it conforms to the maximum authorized dimension. (See the
“Adjusting the air gap” procedure in section 4.4 ref. 5287 FFB
maintenance)
Annually
Perform the checks indicated above.
Cleaning
Precautions to be taken: before carrying out any cleaning
operation, check that the brake motor is totally sealed
(terminal box, drain holes, etc).
Dry cleaning (vacuuming or compressed air) is always
preferable to wet cleaning.
To ensure the brake motor operates correctly, remove any
dust or foreign bodies that might clog the brake moving
parts, the cover grille and the housing ns.
Always clean at reduced pressure from the
center of the brake motor outwards to avoid
introducing dust and particles under the seals.
Drainingcondensationwater
Temperature variations cause condensation to form inside the
motor, which must be removed before it adversely affects
motor operation.
Condensation drain holes, located at the bottom of the motors
(bearing in mind their operating position) are sealed with plugs
that must be removed and then replaced every six months (if
they were not replaced, the motor degree of protection would
no longer be maintained). Clean the orices and plugs before
reassembling them.
Note: In conditions of high humidity and signicant temperature
variations, a shorter period is recommended.
When there is no risk to the motor protection, the condensation
drain plugs can be removed.
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20
PREVENTIVE MAINTENANCE
Installation guide FFB brake motors
5286 en - 2015.04 / a
4 - PREVENTIVE MAINTENANCE
Consult Leroy-Somer (www.leroy-somer.com: Services/Drive
systems) who in its continuous search for ways to help our
customers, has evaluated numerous methods of preventive
maintenance.
The diagram and table below give the recommended
equipment to use and the ideal positions to take
measurements of all parameters that can affect the operation
of the machine, such as eccentricity, vibration, state of the
bearings, structural problems, electrical problems, etc.
M 01V M 02V
M 02A
M 02HM 01H
1
3
4
2
6 7
5
Detector Measurement Measurement points
M01V
M01H
M02V
M02H
M02A
Shaft
E01
E02
E03
E04
E05
➀Accelerometer For measuring vibrations X X X X X
➁Photo-electric cell For measuring speed and
phase (balancing) X
➂Clamp ammeter For measuring current
(D.C. and 3-phase A.C.) XXX
➃Multimeter For measuring voltages X X X
➄Infra-red probe For measuring temperature X X
➅Megohmmeter For measuring insulation
resistance X X
➆Ohmmeter For measuring the coil
resistance XXXXX
Before conducting any work or preventive or
corrective maintenance operations, please consult:
www.leroy-somer.com, manual ref. 5287 FFB
maintenance.