Montanari MGX75 User manual

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MANUALS
MGX75
INSTALLATION, USE AND MAINTENANCE
GEARLESS

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MGX75 ENGLISH
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Thank you for choosing a Montanari product.
Since 1970, Montanari Group has been focused on
providing its customers with the best traction machines and
components for lifts and escalators.
We are proud to have you as a customer and user of the
Montanari traction machines, and we are confident that we
can work together for a long time.
Thanks again for your choice.
Massimo Montanari
CEO of Montanari Group

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It indicates that safety measures must
be taken to avoid electric shock.
It indicates that safety measures must
be taken to prevent personal injury.
It indicates that safety measures
must be taken to prevent damage to
components.
It indicates that safety measures must
be taken to prevent burns due to
contact with hot/ overheated surface.
It indicates useful information before
and during the installation step.
It refers to specific parts of the
manual.
It refers to the proper product
disposal.
TIP
!
!
REV. DATE DESCRIPTION EDITED BY VERIFIED BY APPROVED BY
1 11/03/2020 First Redaction Marketing Dept Technical Dept
Alberto Mantovani
STEFANO BERTONI
(DTE)
2 02/03/2021 Update Marketing Dept Technical Dept
Alberto Mantovani
STEFANO BERTONI
(DTE)
3 01/10/2021 Update Marketing Dept Technical Dept
Alberto Mantovani
STEFANO BERTONI
(DTE)
4 11/07/2022 Update Marketing Dept Technical Dept
Alberto Mantovani
STEFANO BERTONI
(DTE)
WARNING SYMBOLS
USED IN THE MANUAL:

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CONTENTS
1. GENERAL INFORMATION .....................................................................7
1.1 Introduction............................................................................................7
1.2 Copyright ...............................................................................................7
2. SAFETY...................................................................................................8
2.1 Intended use ..........................................................................................8
2.2 User’s obligations ...................................................................................8
2.3 Correct disposal ...................................................................................9
2.4 Specific hazards......................................................................................9
2.5 Legal References ....................................................................................9
3. IDENTIFICATION AND DATA ................................................................9
3.1 Identification plate .................................................................................9
3.2 Dimensions...........................................................................................11
4. TRANSPORT AND STORAGE ..............................................................12
4.1 Handling...............................................................................................12
4.2 Storage.................................................................................................13
5. DESCRIPTION ......................................................................................14
5.1 General description..............................................................................14
5.2 Main components ...............................................................................14
5.3 Brake ....................................................................................................16
6. INSTALLATION.....................................................................................16
6.1 General installation information ...........................................................16
6.2 Installation surface................................................................................17
6.3 Installation procedure...........................................................................17
6.4 Electrical installation - Connections .....................................................18
7. CONNECTION OF THE BRAKE FOR RESCUE SYSTEM......................21
7.1 Connection of the cable to the release lever.......................................21
7.2 Connection of the cable to the brake levers (machine roomless).................... 22
7.3 Connection of the hand release lever for machine room use and rescue
system performance .....................................................................................23
7.4 Procedure:............................................................................................24

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8. OPERATION .........................................................................................25
8.1 Connections .........................................................................................25
8.2 Additional components........................................................................25
8.3 General operation information.............................................................25
9. TROUBLESHOOTING, MAINTENANCE AND REPAIR ........................25
9.1 General information .............................................................................25
9.2 Traction/return sheave..........................................................................26
9.3 Replacement of components ...............................................................26
9.4 Problems, causes and solutions .........................................................26
9.5 Maintenance and repair .......................................................................27
9.5.1 General indications ...........................................................................27
9.5.2 Description of maintenance activities................................................27
10. SPARE PARTS .......................................................................................28
10.1 General information ...........................................................................28
10.2 How to order spare parts ...................................................................28

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1. GENERAL INFORMATION
1.1 Introduction
These operating instructions must always be available for consultation. No
liability is accepted for any malfunction due to installation not conforming to
specifications, except in cases approved by Montanari Giulio & C.
All persons involved in the installation, operation, maintenance and repair of the
unit must have read and understood the instructions.
No liability is accepted for damage, breakage or accident caused by failure to
follow the instructions.
To make technical improvements, Montanari reserves the right, if deemed
necessary, to modify the units and accessories, preserving their essential char-
acteristics and improving efficiency and safety, without notice.
1.2 Copyright
All rights to these operating instructions belong to Montanari Giulio & C. S.r.l.
The information in this manual may not be reproduced or used in an unauthor-
ized manner or made available to third parties without prior approval.
If you have any questions, please contact:
MONTANARI GROUP
HEADQUARTER - MONTANARI GIULIO & C. Srl
Via Bulgaria 39 - 41122 - Modena - Italia
Tel: [phone] - Fax: [phone]
www.montanarigiulio.com
[email protected]

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2. SAFETY
2.1 Intended use
The MGX75 gearless machine is supplied ready for safe and reliable use. Any
modification by the user that may affect safety or reliability is prohibited; it is
also prohibited to tamper with devices or functions designed to prevent acci-
dental contact.
The Montanari MGX75 gearless machine must be used and operated
in strict compliance with the conditions set out in the supply contract.
!
Technical specifications considered: speed, cab capacity, cab weight, presence
or absence of compensation, roping at the time of order.
No liability is accepted for any malfunction due to installation not conforming to
specifications, except in cases approved by Montanari Giulio & C.
2.2 User’s obligations
The operator must ensure that all persons involved in installation, operation,
maintenance and repair have read and understood the supplied operating
instructions and have adapted to them in order to:
• Avoid damage to property or persons.
• Ensure safe and reliable operation of the unit.
• Avoid breakage and environmental damage due to misuse.
In particular:
• Always observe the relevant environmental and safety regulations when
transporting, assembling, installing, operating, maintaining and dismantling
the unit.
• The unit must only be used, maintained and repaired by authorized, prop-
erly trained and qualified personnel.
• The gearless must not be cleaned using high-pressure cleaning equipment.
• All work must be carried out with care and with due attention to safety.
• Any work on the unit should only be carried out when it is not in operation.
• A warning must be placed on the main switch to clearly indicate that work
is in progress on the unit.
• No welding must be carried out on the unit.
• Do not use the unit as a grounding point for welding operations.
• If any changes are detected (e.g. overheating or unusual noise) during
operation, switch off immediately.
• Rotating components must be equipped with appropriate guards to pre-
vent contact.
• If the unit is intended for installation in plant or machinery, the manufacturer
of such plant or machinery must ensure that the standards, indications and
descriptions contained in these operating instructions are incorporated into its
own instructions.

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N Norm Description
1 UNI 10147 Maintenance: Terminology.
2 EN 81-20 Safety rules for the construction and installation of lifts - Lifts for the transport of persons
and goods.
3 EN 81-50 Safety rules for the construction and installation of lifts - Examinations and tests.
4 EN 81-21 Safety rules for the construction and installation of lifts - Lifts for the transport of persons
and goods - Part 21: New passenger and goods passenger lifts in existing building.
3. IDENTIFICATION AND DATA
3.1 Identification plate
The data on the plate are:
• The information on the warning or identification plates must be complied
with. These plates must be kept clean and legible at all times. Missing plates
must be replaced.
• All spare parts can be obtained from Montanari Group.
2.3 Correct disposal
Respect the environment and dispose of the product according to the
regulations in force in the country of installation.
2.4 Specific hazards
Depending on the conditions of use, the surface of the unit can become very
hot.
Fig. 1
Danger of burning!
!
Manufacturer
Manufacturer’s
address
Year of production
Serial number
Gearless
machine
code
Model
Speed
Rated
voltage
Frequency
Power rating
Cycle type
Rated torque
Motor
pole no.
Rated current
Weight
QR code to access
the relevant
documentation.
2.5 Legal References Tab. 1
- Example of Identification Plate
Download
App

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MGX75 Type Pn
Speed Vn Cn In Cmax Imax EMF Poles F Rs Ls Static
Load IDuty
Cycle Weight
Code
machine kW [RPM] [V] [Nm] [A] [Nm] [A] [V∙s/
rad] [N°] [Hz] [Ω] [mH] [Kg] [kg∙m2] [Kg]
MGX750712037600 MGX75 4,1 120 380 325 10 590 21 18 24 24 2 41 1600 1,3 180S/H 40% 190 MGX750718037600 MGX75 6,1 180 380 325 14,5 590 28 14 24 36 1 22 1600 1,3 180S/H 40% 190 MGX750723937600 MGX75 8,1 239 380 325 19,5 590 38 10 24 47,8 0,6 12 1600 1,3 180S/H 40% 190
GEARLESS MACHINE TECHNICAL CHARACTERISTICS: MGX75
BRAKE CHARACTERISTICS
Model Brake model Power Voltage Current Braking
Force Certificate
[W] [V] [A] [Nm]
MGX75 EMF00 2X162W 104VDC 2X0.8A 2X325Nm EDPS 025
Tab. 2
Tab. 3

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3.2 Dimensions
The technical drawing and the overall dimensions follow.
Fig. 2
MGX75
Gearless Type
Traction Sheave [mm] Dimensions [mm]
Ø D F A B C E
MGX75 320 72 315 680 503 63
Tab. 4
290
B
O
25
180180
22O
25
7474 271
223
C91,5
175
12074 E
A67
O
D
F

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Only use lifting systems and equipment with adequate lifting capacity
for handling. The entire packaging is designed to allow movement with
for lift and for lift truck.
!
4. TRANSPORT AND STORAGE
4.1 Handling
All gearless machines are packed in crates or cages.
Different types of packaging can be used, depending on the size and means
of transport. Unless otherwise specified, the packaging complies with the HPE
guidelines.
In some cases, the machines are mounted on wooden pallets to enable them to
be transported correctly on trucks. The packaging may not be stacked in any way.
It is recommended to check the conditions of the material when it is received. In
case of damage, do not proceed with the installation unless expressly authorized
by Montanari Giulio & C. Observe the symbols on the packaging to prevent dam-
age to property or personal injury. Here are the meanings of the symbols that may
appear on the packaging.
Keep dry Handle with care
Upper side Do not use hooks
Fragile Center of gravity
Keep away from
heat sources
Attachment point

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For lifting, anchor points (eye-
bolts) are provided as shown in
Fig. 3.
Use only the specified eyebolts to
handle the unit.
Fig. 3
! !
4.2 Storage
The gearless machine must be stored in the position of use on a wooden base
not subject to vibrations, in a covered and sheltered place.
If the unit is stored outdoors, it should be covered, taking care that no
moisture and/or other foreign matter can accumulate on it.
!
Supplies for special environmental conditions during transport (e.g.
by ship) and storage (climate, temperature, etc.) must be contractually
agreed.
!
• Check the correct operation of the motor and brake after installation.
• Repairs may only be carried out by the manufacturer or by authorised per-
sonnel.
• The machine can be red-hot.
• These machines must be connected to inverters.
• When the machine is rotating, both manually and mechanically, it can act as
a generator and produce high voltage.
• During configuration, the machine is powered by high voltage.
! !

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5. DESCRIPTION
5.1 General description
The MGX75 series gearless machines are permanent magnet motors with dou-
ble brake system.
5.2 Main components
The unit consists of the main groups as shown in Fig. 4 - 5
MGX75 is equipped with a PTC thermal probe inside the windings to protect
against overheating (winding temperature up to 130°C) and with a thermo-con-
tact for the activation of the fans. Refer to the electrical connections for more
details. - See Par. 6.4.
Lubrication
The gearless machine contains no oil and it is supplied with bearings
already lubricated throughout the life of the machine; no further lubri-
cation is required.
!
Brake levers
Fig. 4
Fixing holes
Motor cable
outlet
MGX75
Traction sheave
Label
Metal sheet
guards available
on demand

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Fig. 5
Flywheel
Lifting holes
Motor cable
outlet
MGX75
Encoder
Brake electromagnet
Movable surface/brake

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5.3 Brake
The gearless machine is supplied with a brake that conforms to the standards
indicated in paragraph 2.5.
The brake system is pre-calibrated by the manufacturer and no further adjustment
is required.
The brake system operates as follows:
• Not powered (electromagnet not powered): the brake drum is clamped
by the movable surfaces (yellow arrows on Fig. 6). In this condition the system
does not move.
• When the brake electromagnet is powered, it releases the brake drum
(yellow arrows in Fig. 7); now the motor is released.
!!
AIR GAP 0,4 mm AIR GAP 0 mm
Brake system not powered Brake system powered
Fig. 6 Fig. 7
6. INSTALLATION
6.1 General installation information
The gearless machine must be installed in a building or in a closed travel com-
partment.
Do not use the gearless machine in an explosive atmosphere.
The room temperature must be between 0°C and +40°C.
Assembly and installation must be carried out with great care by qualified and
trained personnel.
The manufacturer cannot be held responsible for damage caused by incorrect
assembly or incorrect installation.
Before starting work, make sure that adequate lifting and handling equipment
is available.
No welding work must be carried out on the unit.
The unit must not be used as a grounding point for welding operations. The
bearings can be irreparably damaged.
All fixing points specified by the manufacturer must be used.
The air supply for cooling must not be prevented.
! !

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Fig. 8
6.2 Installation surface
The installation surface must be uniform and level.
The levelling tolerance is 0.2 mm.
The installation surface must be rigid and robust enough to withstand the forces
involved.
6.3 Installation procedure
The gearless machine can be lifted using the eyebolts for the insertion of the
belts or lifting chains (see also the paragraph on storage and handling). Particular
attention is needed to avoid that the gearless machine receives blows in corre-
spondence of the brake disc; the brake levers and the electrical connections of the
board are very delicate. Lifting example Fig. 8.
Place the unit on the installation surface and secure it.
• Fixing screws and nuts must be tightened to the prescribed torque.
• Use bolts with a minimum strength class of 8.8.
• Do not force or hit the fixings to position them; this could damage the
bearings, rings, etc.
• Mount the safety devices.

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Fig. 9
LATERAL
DOWNWARDS
STATIC LOAD:
1.600 kg
STATIC LOAD:
1.100 kg
STATIC LOAD:
900 kg
UPWARDS
Load direction
6.4 Electrical installation - Connections
The Gearless is provided of terminal block:
LATERAL
STATIC LOAD:
900 kg
The static load changes depending on the roping direction (Fig. 9).
Clamp Phases
Fig. 10

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!!
• The power cable must be routed separately from the other cables.
• The motor power cable is shielded and the shield must be grounded.
• The encoder cable must be routed away from the motor power cable to avoid
electrical interference.
• The brake system has a power cable and another cable for the microswitch
contacts. All electrical data are listed on the label of the brake system.
The microswitch has two contacts: one open and one closed. (Fig. 12).
These contacts indicate the brake condition (tab. 5).
PTC Thermistor clamps
[M1 - M2]
Left Microswitch clamps
[Lo and Li]
Brake supply clamps
[B+ and B-]
Right Microswitch clamps
[Ro and Ri]
Fig. 11
Fig. 12

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Below an example for setting the parallel connection of the brake coil.
- Standard mode:
It is possible controlling only contactor 1 and leaving contactors 2 and 3 closed.
(Fig. 13).
This protects the brake from dangerous overvoltage and noise when closing.
- Emergency mode and inspection mode:
The use of all contactors is recommended. Using only contactor no. 1 during
opening and/or closing operations may cause an unacceptable delay when clos-
ing the brake.
Typical application with brake coils in parallel configuration.
Fig. 13
Brake disc closed Condition
contact Brake disc free Condition contact
Disconnected Connected
COM. N.O. COM. N.O.
Tab. 7
CONTACTOR N˚1
BRAKE COIL N˚1 BRAKE COIL N˚2
CONTACTOR N˚3
230 Vac
˜
˜
CONTACTOR N˚2
104 VDC