WITTUR WSG-18 Series User manual

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 1
Datum/date 14.02.2006
Stand/version 0.17
Änderungen vorbehalten! Subject to changes without notice!
MADE BY
SAD GmbH
A MEMBER OF WITTUR
Reprinting, translation or reproduction in any form -
whether in part or in full - requires the prior written
permission of WITTUR AG.
Wittur AG reserves the right to make changes in the
information and pictures contained in these operating
instructions without prior notice.
WITTUR AG
Rohrbachstraße 26-30 • D-85259 Wiedenzhausen, Germany
Tel. [phone] • Fax [phone]
http://www.wittur.com, E-mail: [email protected]
58 00 000 0250 ba_wxg18_e17 14.02.2006
English
Gearless Lift Machines
WSG-18.1
WSG-18.2
WSG-18.3
WLG-18.A
WLG-18.B
WLG-18.C
liftgearless

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 2
Datum/date 14.02.2006
Stand/version 0.17
Änderungen vorbehalten! Subject to changes without notice!
MADE BY
SAD GmbH
A MEMBER OF WITTUR
These operating instructions are
applicable to lift machines:
WSG-18. ....
WLG -18. ....
System Antriebstechnik Dresden reserves the right to
correct or change the contents of this manual and
these product details without prior notice. We
expressly reserve the right to make technical changes
which improve the lift machines or their safety stan-
dards without prior notice. No liability can be accept-
ed for damage, injuries or expense arising therefrom.
We cannot guarantee the correctness and complete-
ness of the details.
Offenburger Strasse 3
01189 Dresden
Tel. [phone]
Fax [phone]
[email protected]
www.sadgmbh.de

Änderungen vorbehalten! Subject to changes without notice!
MADE BY
SAD GmbH
A MEMBER OF WITTUR
Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
1. General safety instructions..................................................................................................................4
2. Product description ...............................................................................................................................6
3. Nameplate................................................................................................................................................6
4. Scope of supply ......................................................................................................................................8
5. Transport and storage...........................................................................................................................8
6. Installation...............................................................................................................................................9
7. Electrical connection...........................................................................................................................10
7.1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
7.2. Motor connection / Winding protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
7.3. Speed/Position measuring system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
7.3.2. Measuring system ERN 1387 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
7.3.1. Measuring system ECN 1313 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
7.3.3. Measuring system ROD 426 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
7.4. Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
8. Commissioning.....................................................................................................................................17
9. Operation and maintenance .............................................................................................................18
9.1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
9.2. Maintenance intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
9.3. Lubricating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
9.4. Fan filter mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
9.5. Replacing the traction sheave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
9.6. Emergency evacuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
9.7. Testing the brake system to EN 81-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
9.8. Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
9.9. Replacing the measuring system (ECN / ERN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
9.10. Trouble shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
10. Type code.............................................................................................................................................27
11. Technical data WSG-18 ...................................................................................................................28
12. Dimension drawing WSG-18..........................................................................................................29
13. Technical data WLG-18 ...................................................................................................................30
14. Dimension drawing WLG-18 ..........................................................................................................31
15. Accessories..........................................................................................................................................32
15.1. Connecting cable for measuring systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
15.2. Rope clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
15.3. Return motion device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
15.4. Cable set for motor and brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
16. Spare parts..........................................................................................................................................35
17. EC type-examination certificate....................................................................................................36
Seite/page 3
Datum/date 14.02.2006
Stand/version 0.17
Contents

1. General safety instructions
Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Explanation of symbols used in these instructions
means that death or serious injury to per-
sons or serious damage to property will
occur unless the appropriate precautions
are taken.
means that death or serious injury to per-
sons or serious damage to property may
occur unless the appropriate precautions
are taken.
means that injuries to persons or damage
to property may occur unless the appropri-
ate precautions are taken.
points out important information and
operating instructions. If these are not
observed, damage, hazards or faults may
result.
Intended use
The WxG-18 lift machines have been manufactured in
compliance with the latest state of the art and recog-
nised safety regulations. They may only be used for the
purpose for which they are intended, and with all safety
devices in proper working order.
The WxG-18 may only be used for driving lifts. "Intend-
ed use" also requires that the instructions contained in
the documentation supplied with the machine and the
commissioning instructions be observed, and that the
specified inspection and maintenance work be carried
out.
Warranty and liability
Our "Conditions of Sale and Delivery" shall apply for all
our supplies and services.
We do not accept any warranty or liability claims for per-
sonal injury or property damage resulting from one or
more of the following causes:
• Improper use of the WxG-18 lift machine
• Improper installation, commissioning, operation or
maintenance
• Operation of the WxG-18 with defective and/or inoper-
ative safety or protective devices
• Non-compliance with the instructions contained in the
operating instructions or other documentation sup-
plied
• Unauthorised construction modifications to the WxG-18
• Insufficient monitoring of parts subject to wear
• Repairs carried out improperly
• Emergencies caused by external forces or force majeure
Safety precautions
Only qualified personnel are authorised to perform any
planning, installation or maintenance work, and this
must be done in accordance with the relevant instruc-
tions.
The personnel must be trained for the job and must be
familiar with the installation, assembly, commissioning
and operation of the product.
The WxG-18 lift machines are intended for use in an
enclosed, lockable machine room to which only qualified
personnel and personnel authorised by the customer
have access.
Seite/page 4
Datum/date 14.02.2006
Stand/version 0.17
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MADE BY
SAD GmbH
A MEMBER OF WITTUR
Danger
Warning
Caution
Note
• The instructions given in this manual or
any other instructions supplied must
always be observed to avoid danger or
damage.
• WxG-18 lift machines are not ready-to-
use products; they may only be operated
after they have been installed in lift sys-
tems and their safe operation has been
ensured by taking the appropriate mea-
sures.
• Check the proper functioning of the
motor and the brake after installing the
machine.
Danger

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 5
Datum/date 14.02.2006
Stand/version 0.17
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MADE BY
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A MEMBER OF WITTUR
• Repairs may only be carried out by the
manufacturer or an authorised repair
agency. Unauthorised opening and tam-
pering may result in injuries to persons
and property.
• The machines are not designed for direct
connection to the three-phase system
but are to be operated via an electronic
frequency converter. Direct connection
to the mains may destroy the motor.
• High surface temperatures may occur on
the external parts of the machine. There-
fore, no temperature-sensitive parts may
be in contact with these parts or
attached to them. Protection against
accidental contact should be provided, if
required.
• The EC type-examined fail-safe brakes
provided are designed only for a limited
number of emergency braking operations.
They must not be used as working brakes.
• High voltages are applied at the terminal
connections during the operation of syn-
chronous motors.
Warning

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
The compact flat-type gearless WxG-18 lift machines are
designed for gearless traction sheave lifts with machine
room. They are intended for operation with a 2:1 or 1:1
suspension and are distinguished by their high efficiency,
extremely low noise and excellent operating characteris-
tics.
The WxG-18 gearless lift machines are designed solely for
use with electronic frequency converters.
The synchronous motor has been designed for various
rated torques, based on a number of overall widths. It
can also be supplied for several rated speeds, which can
then be further adapted to meet individual customer
requirements.
The machine comprises a grey cast iron frame (11), the
three-phase motor, traction sheave (4) and shoe brake
(1).
The shaft is very sturdily designed to accommodate the
high loads acting on the traction sheave. At the D end, it
is supported in a robust self-aligning roller bearing (6).
Six threaded holes (6) are provided on the front end
periphery, permitting a mechanical return motion device
to be fitted in case of an emergency.
The stable D end shield (5) is of spheroidal cast iron. At
the ND end the shaft is also carried in a self-aligning
roller bearing (15) which is preloaded by means of a cup
spring. The bearing is incorporated in ND end shield (13)
of grey cast iron. The two bearings are sealed with inter-
nal and external shaft sealing rings.
A separately driven low-noise fan (10) is mounted on top
of the ND end shield. The terminal box is arranged on
the right-hand side (viewed facing the shaft).
The mounting flange on the ND end shield incorporates
the speed/position measuring system (16).
The brake is connected to a AC- system via a control unit
which is included in the scope of supply. This over-exci-
tation rectifier can be installed, for example, in the con-
trol cabinet. The terminals for the brake monitoring con-
tacts, the motor terminals and the temperature detector
monitoring contacts are accommodated in the terminal
box.
The brake can be released manually, if required, by oper-
ating the manual release lever. The braking torque can
be adapted to the specific needs, if necessary, by adjust-
ing the two brake springs.
No brake lining wear occurs, since in modern drive equip-
ment such brakes are under friction only in an emer-
gency. Normally they are only applied when the machine
is at rest.
Seite/page 6
Datum/date 14.02.2006
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MADE BY
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A MEMBER OF WITTUR
2. Product description
3. Nameplate
Type code of
lift machine
Rated current Rated speed
Rated torque
Serial no.
EC type-examination
certificate
Rated frequency Weight
The nameplate of the lift machine is on the motor frame.

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 7
Datum/date 14.02.2006
Stand/version 0.17
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MADE BY
SAD GmbH
A MEMBER OF WITTUR
13
15
14
16
12
1110
1 Shoe brake
2 Rope slip-off guard
3,14 Hydraulic-type lubricating
nipple
4 Traction sheave
5 D end shield
6 Self-aligning roller bearing
7 Cheese head bolt
8 Brake hub
9Key
10 Fan
11 Machine frame
12 Rotor
13 ND end shield
15 Self-aligning roller bearing
16 Measuring system
1
3
2
7
6
5
4
9
8
13
15
14
16
12
1110
1
3
2
7
6
5
4
9
8
WLG-18
WSG-18
1 Shoe brake
2 Rope slip-off guard
3,14 Hydraulic-type lubrica-
ting nipple
4 Traction sheave
5 D end shield
6 Self-aligning roller bearing
7 Cheese head bolt
8 Brake hub
9Key
10 Fan
11 Machine frame
12 Rotor
13 ND end shield
15 Self-aligning roller bearing
16 Measuring system
NDE DE
NDE DE

5. Transport and storage
The lift machines leave the factory in perfect condition
after being tested.
Make a visual check for any external damage immediate-
ly upon their arrival on site. If any damage incurred in
transit is found, make a notice of claim in the presence
of the carrier. If necessary, do not put these machines
into operation.
Transport
Observe the relevant safety regulations and
take the centre of gravity into account
when handling the lift machines.
The motor has to be hung up at the 4 carrying rings that
way, that the load angle αis always ≤45° between the
ropes.
The eyebolts are designed for the specified machine
weight, i.e. it is not permitted to suspend additional
loads.
Storage
Store the motors only in closed, dry, dust-free, well-ven-
tilated and vibration-free rooms (storage temperature:
-20°C to 60°C). Do not store lift machines in the open air.
Bright parts are not sufficiently preserved to withstand
extended periods of exposure.
Avoid excessive storage periods (recommendation: max.
one year).
After prolonged storage (>3months), rotate the motor in
both directions at a low speed (< 20min-1) to allow the
grease to distribute evenly in the bearings.
Measure the insulation resistance before initial operation
of the machine. If the value has dropped below < 1kΩ
per volt of rated voltage, the winding needs to be dried
(insulation meter voltage: 1,000VDC).
Unpacking
Dispose of the packaging material in an
environmentally friendly manner or reuse
it.
Any special transport aids or shipping
braces are left with the customer.
Warning
Note
This can be done, for instance, with heated air, in a dry-
ing oven, or by applying a d.c.voltage to the motor con-
nections.
Make sure that the voltage selected does not exceed the
values shown in the figure
"Drying the winding" . Let the
temperature rise to about 70 – 80°C and maintain it for
several hours.
u
v
w
A
I≈65% IN
-
U
Drying the winding
Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 8
Datum/date 14.02.2006
Stand/version 0.17
Änderungen vorbehalten! Subject to changes without notice!
MADE BY
SAD GmbH
A MEMBER OF WITTUR
4. Scope of supply
•Lift machine WSG-18/WLG-18 according to order
specification (on shipping pallet)
•Brake control unit
•Complete operating instructions
•Delivery note
Options:
•Return motion device
•Rope clamp
•Connecting cable for measuring system
•Cable set for motor and brake
Rope slip-off guard

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Be sure to check the base frame or founda-
tion loads by calculation before installing
the lift machine.
The lift machine may only be installed if the relevant
safety precautions have been met. The machines can be
used in lift systems with a machine room.
The machines may only be installed, electrically connect-
ed and put into operation by trained specialist personnel.
The system-specific conditions and the requirements of
the system manufacturer or plant constructor must be
met.
Cover the machine and especially the
brakes when doing any machining or dust-
producing work in the shaft or machine
room.
The measuring system is only accessible
from the rear side. Therefore, leave enough
space between the wall and the rear side of
the machine or ensure that the machine
can be moved away from the wall.
Degree of protection
The lift motors are designed with degree of protection
IP23M / IP125, i.e.
M : during operation
S: at rest.
The traction sheaves are provided with holes for the
cooling air circuit and with external fins for stiffening.
Therefore, take special care.
When making the electrical installation, make sure the
cable connections to the terminal boxes are sealed tight-
ly.
Ambient conditions
The following ambient conditions must be ensured on
site:
Altitude: max. 1,000m a.s.l.
Ambient temperature: - 5...40°C
Max. rel. humidity: 85% at 20°C (no moisture con-
densation)
Install the machine so that ventilation is not obstructed,
i.e. sufficient heat dissipation by convection and radia-
tion must be ensured.
The torque and power values indicated in the Technical
Data apply to the above ambient temperatures and alti-
tudes. In case of a deviating altitude and/or ambient
temperature, the reduction factors k shown in the dia-
gram below must be used.
Mpermiss. = k * MN
Ppermiss. = k * PN
Fastening the machine
The rope force can be applied to the lift
machine in any direction.
The machine or base frame should be
mounted on rubber pads for vibration
damping.
The machine is fastened using 8 M20 bolts (strength
class 8.8; tightening torque: 395Nm).
The permissible uneveness of the mounting surface is
0.1mm. The mounting surface must be sufficiently dis-
tortion-resistant and stable to accommodate the forces
occurring in the system.
After completing the adjusting work, tight-
en the 8 fastening bolts of the machine,
using the specified torque.
Lift machines are generally equipped with
rope slip-off guards. After putting the
ropes in place, adjust them so that the dis-
tance between the rope and the rope slip-
off guard does not exceed 1.5mm.
If the machine is not installed in the
machine room "on top" of the shaft, the
installation of the rope slip-off guards may
have to be modified. In this case, optional
rope slip-off guards are available that can
be fitted to the foot area of the machine.
Seite/page 9
Datum/date 14.02.2006
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MADE BY
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A MEMBER OF WITTUR
6. Installation
Danger
Warning
Note
Note
0,6
0,7
0,8
0,9
1,0
1,1
1,2
0 102030405060
Ambient temperature in °C
Factor k
Altitude < 1000 m
Altitude < 2000 m
Altitude < 3000 m
Danger
Note

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
7.1. General
The electrical connection may only be made
by a qualified electrician.
Before starting any work on the machines,
ensure that the lift machine or system is
properly isolated.
Before making any connections check that
•the connecting cables are suitable for their specific
application and for the relevant voltages and currents.
•the sufficiently dimensioned connecting cables and
torsion, strain and shear relief as well as anti-kink pro-
tection are provided
•the protective conductor (Protection Class I only) is
connected to the earthing terminal
•there are no foreign bodies, dirt or moisture in the ter-
minal boxes
•cable entries not in use and the terminal box itself are
tightly sealed to prevent the ingress of dust or splash
water.
The insulation system of the motors is
designed such that they can be connected
to a converter with a maximum d.c. link
voltage Ulink max up to max. 700 Volt.
Note: Ulink max is the maximum value of the
d.c. link voltage which is only transient and
approximately equivalent to the inception
voltage of the braking chopper or of the
energy recovery unit.
The maximum permissible rate of voltage
rise (dU/dt) at the motor terminals may be
max. 1.3 kV/µs (in accordance with the
specifications of DIN VDE 0530 T1, Supple-
mentary Sheet 2). The overvoltage at the
motor terminals must not exceed 1.3 kV. It
may be necessary to use motor current fil-
ters or reactors to achieve these values.
7.2. Motor connection / Winding protection
The electrical connection of the motor and the winding
monitoring devices is made in the terminal box on top of
the machine.
The motor cable must be shielded. Ensure that the cable
shield contacts the frame over a large area at both ends.
The motor phases U1, V1 and W1 must be connected cor-
rectly to the corresponding phases of the converter; they
must not be interchanged.
The thermocouples installed in the winding
such as PTC thermistor detectors and ther-
mostatic switches must be evaluated in the
control system or frequency converter to
protect the motor from overtemperature.
The separately driven fan must be properly
connected and operated. It can be switched
in dependence of temperature by the ther-
mal switch S4, if required (relay must be
used).
Seite/page 10
Datum/date 14.02.2006
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A MEMBER OF WITTUR
7. Electrical connection
Danger
Note
Cable cross-section required:
The currents specified under the machine
data for the series WLG-18 refer to duty
type S3-60%. This must be taken into
account when selecting the cable cross-
section required. The continuous Ir.m.s.
value required for the selected cable is
approximated from:
Ir.m.s. (cable) ≈≈IN (motor, S3-60%) / 1.28
The following table gives the recommended values for
the current-carrying capacity of PVC cables at a maxi-
mum ambient temperature of 40 °C:
Note
Caution
Cable cross-
section
WSG-18
Permis. max. cur-
rent (r.m.s. value)
WLG-18
Permis. max. current
IN(S3 - 60%)
2,5 mm222,6A 29,2A
4,0 mm229,6A 38,2A
6,0 mm238,3A 49,4A
10,0 mm253,1A 68,6A
16,0 mm271,3A 92,0A
25,0 mm294,0A 121,3A
35,0 mm2117,4A 151,9A
50,0 mm2146,2A 188,7A

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 11
Datum/date 14.02.2006
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MADE BY
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A MEMBER OF WITTUR
Motor connection diagram
terminal strip for
brake connection
running capacitor
for fan
motor terminals
terminal strip for fan and
winding protection con-
nections
M
3~
U1 V1 W1
PE T1
T3
T2
T4
S1
S3
S2
S4
(Z)
L
N
υυυ
υυυ
υ
Terminal box
screwed cable entry
1 x tapped hole Pg 36
1 x tapped hole Pg 29
PTC-thermistor T
3 x STM-150.ES... (150°C)
- integrated in the motor windings
- for motor protection Thermostatic switch S1
3 x S01.130.05.... (130°C)
(250 V AC / 2,5 A / cos ϕ = 1)
- integrated in the motor windings
- pre-warning overtemperature
M
Fan F
D2E 133-AM47-A5
230 V / 50/60 Hz / 0,84/0,88 A
Thermostatic switch S4
1 x S01.60.05.... (60°C)
(250 V AC / 2,5 A / cos ϕ = 1)
- integrated in the motor windings
- f.e. for fan controlling

7.3. Speed/Position measuring system
The basic version of the lift machines WSG-18 is
equipped with a ECN1313 sine-cosine encoder from Hei-
denhain GmbH. The encoder is connected via a 17-pole
signal plug connector which is fitted to the measuring
system housing.
Alternatively, the machines can be equipped with the
encoder types ERN1387 also from Heidenhain GmbH.
These measuring systems are connected via a 17-pole
signal coupling fitted to the motor.
The basic version of the asynchronous lift machines
WLG-18 is equipped with a encoder ROD 426 from Hei-
denhain GmbH. It is connected via a 12-pole signal plug
connector which is fitted to the measuring system hous-
ing.
We can also provide other measuring systems on request.
We recommend the use of an appropriate
cable set to connect the measuring system
to the converter system. Cable sets can be
supplied as accessories.
The measuring system of the WSG-18 lift
machines is matched to the associated con-
verter. Do not change the adjustment as
this may make it impossible to use the
motor.
On the measuring system housing there is a
label showing the "offset angle" deter-
mined at the factory.
Note: This value depends on the converter.
Warning
Note
Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 12
Datum/date 14.02.2006
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MADE BY
SAD GmbH
A MEMBER OF WITTUR
Earthing
For safety reasons, it is very important that the motor be
properly and carefully earthed.
It is essential to use the earthing terminal
in the terminal box. In addition, an earth-
ing screw is provided on the motor frame
for the connection of a protective or earth-
ing conductor as specified in VDE 0100 and
VDE 0141 respectively.
When using shielded power cables, make sure the cable
shield metal contacts the motor frame over a large area.
This is achieved, for example, by special cable glands pro-
vided for shield contact.
Short-circuiting
The motor terminals of the synchronous lift
machines, type WSG, can be short-circuit-
ed, if required, to brake the lift machine
faster. This is, however, only permissible at
speeds less than the rated speed of the
respective motor.
Warning
Note
PTC-thermistor
The operating voltage of the PTC thermis-
tors is not allowed to exceed 25VDC.
Caution
3 x 4000
3 x 1330
3 x 550
3 x 250
-20°C
130°C
145°C
150°C
Widerstand / Resistance [Ω]
Temperatur
155°C
165°C

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 13
Datum/date 14.02.2006
Stand/version 0.17
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MADE BY
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A MEMBER OF WITTUR
7.3.1. Measuring system ECN1313
Number of sine-cosine
periods per rotation: 2048
Operating voltage: 5V
Data interface: SSI or ENDAT
7.3.2. Measuring system ERN1387
Number of sine-cosine
periods per rotation: 2048
Operating voltage: 5 V
Commutation signals: 1 sine and cosine signal
with 1 period/rotation
(Z1 track)
Pin Signal
1UpSensor
11
5
6
7
13
9
8
10 16 17
15 14
12 2
1
4
3
40V Sensor
7Up
8Clock +
9Clock -
10 0V (Up)
11 inner shield
12 B +
13 B -
14 DATA +
15 A + Pin contacts of flanged con-
nector socket (exterior)
16 A -
17 DATA -
Pin Signal
1A +
11
5
6
7
13
9
8
10 16 17
15 14
12 2
1
4
3
2A -
3R +
4D -
5C +
6C -
70V (Up)
10 Up
11 B +
12 B -
13 R - Pin contacts of flanged con-
nector socket (exterior)
14 D +
15 0V Sensor
16 UpSensor
Pin Signal
1B -
2Upsensor
3R +
4R -
5A +
6A -
8B +
9shield
10 0V (Up)Pin contacts of flanged con-
nector socket (exterior)
11 0V sensor
12 Up
7.3.3. Measuring system ROD426
Number of sine-cosine
periods per rotation: depending on specification
Operating voltage: depending on specification
Commutation signals: -

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 14
Datum/date 14.02.2006
Stand/version 0.17
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MADE BY
SAD GmbH
A MEMBER OF WITTUR
7.4. Brake
The brakes are supplied with d.c. voltage by the overexci-
tation rectifier, which is supplied separately. The rectifier
should be installed in the control cabinet of the lift sys-
tem. It can be snapped on a mounting rail as specified in
EN50022.
The overexcitation period and the holding voltage can be
adjusted separately. They are factory-set by the manufac-
turer and must not be changed (see section – Technical
data).
To reduce the switch-off time, switching
can be effected from the d.c. side. Howev-
er, it is also required to provide switching
from the a.c. side at the same time)!
The overexcitation rectifier is supplied as
standard with a bridge installed between
contacts A8 and A9, meaning that a.c. side
switching is preset.
Note on the use of d.c./a.c. side switching:
A.c. side switching is recommended for nor-
mal operation, since the lift machine is
then decelerated in a controlled manner to
zero speed and the switching noise of the
brake is negligible.
When braking in the event of a breakdown
(emergency stop) or during an inspection
drive, the switching should be performed
from the d.c. side, since this ensures a
faster braking effect with the car being
stopped earlier.
Monitoring the brakes
The switching state and wear of the brakes are monitored
by means of dust-proof microswitches with gold con-
tacts. The contacts are designed as n.c. contacts, i.e. the
contact is opened if the armature is attracted (brake
released). It is possible to change the micro switch con-
tacts into n.o. contacts, if required.
Max. current carrying capacity of the monitoring
contacts: 250 V AC / 3 A (resistive load)
Note
Note
TLtime for releasing the brake
TS~ switching-off time - A.c. side switching
TS= switching-off tim - D.c. side switching
Note: The above swiching times are guide values under
reference conditions.
A.c. side switching
•Low-noise switching of the brake
•No protective measures required for switching contact
•Slow application of the brake.
~
+
-
Br
D.c. side switching
•Noisy switching
•Burn-up protection for switching contact required
(e.g. varistor, free-wheeling diode)
•Fast application of the brake.
-
+
Br
~
Monitoring Brake dropped released
Releasing NC NO
Wear Brake lining new NC NC
Brake lining worn NO NC
Switching state s of brake monitoring contacts
TL / ms TS~ / ms TS= / ms
WSG-18.1 ~ 180 ~ 610 ~ 75
WSG-18.2 ~ 230 ~ 260 ~ 45
WSG-18.3 ~ 320 ~ 250 ~ 40
WLG-18.A ~ 160 ~ 800 ~ 90
WLG-18.B ~ 190 ~ 520 ~ 75
WLG-18.C ~ 230 ~ 260 ~ 45
Switching times WxG-18 with twin shoe brake

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 15
Datum/date 14.02.2006
Stand/version 0.17
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MADE BY
SAD GmbH
A MEMBER OF WITTUR
Circuitry suggestion for brake control WxG-18
Schaltungsvorschlag Bremsenansteuerung Circuitry suggestion for brake control WxG-18 mit Backenbremse
with twin shoe brake
230 V ±10%
40...60 Hz A1
A2 A3 A4 A5 A6
U
V
L- L-
L+ L+
A9 A8
Binder 33 433 ...
K
Bremsmagnet Brake magnet
A1
gleichstromseitiges Schalten der Bremse D.c. side switching and separate control
A1 A2 A3 A4 A5 A6
U
V
L- L-
L+ L+
A9 A8
K
wechselstromseitiges Schalten der Bremse A.c. side switching and separate control
Binder 33 433 ...
Bremsüberwachung Brake monitoring
LL LL
LB LB
NC NO C NC NO C
RL
RL
RB RB
NC
NO
C
rechts r.h.s.
links l.h.s.
NC
NO
C
Lüften
release
Verschleiß
wear
Lüften release
Verschleiß wear
Bremsmagnet Brake magnet Bremsüberwachung Brake monitoring
links l.h.s.
rechts r.h.s.
rechts r.h.s.
links l.h.s.
zur Steuerung
to control cabinet
{
E1 E1 A1
Bremsüberwachung / Brake monitoring Bremsmagnet / Brake magnet
Bremsenansteuergerät Overexcitation rectifier
- Separat im Schaltschrank zu installieren! - Must be installed in the control cabinet!

Dimension drawing overexcitation rectifier
Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 16
Datum/date 14.02.2006
Stand/version 0.17
Änderungen vorbehalten! Subject to changes without notice!
MADE BY
SAD GmbH
A MEMBER OF WITTUR

8. Commissioning
Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
The following points should be checked or completed:
•Remove all securing, auxiliary and installation tools
from the danger area.
•Check that the lift machine is used for its intended
purpose and that the permissible ambient conditions
are met.
•Check that the lift machine is properly fastened.
•Are all bolts tightened with the specified torque and
secured?
•Check the motor connection, especially the earthing.
•Check that the temperature monitoring devices are
properly connected and functioning.
•Check that the brakes are properly connected and that
the brake monitoring switches are functioning properly.
•Is the measuring system properly connected?
•Check that the offset value indicated on the measuring
system agrees with the value set on the converter (only
for WSG).
•Check the proper functioning of the brake; perform a
braking test using one partial brake.
•Is the rope slip-off guard properly tightened and adju-
sted?
An initial functions test of the motor and
the brake, together with the converter,
should be performed before the ropes are
put in place.
Seite/page 17
Datum/date 14.02.2006
Stand/version 0.17
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MADE BY
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A MEMBER OF WITTUR
Note

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 18
Datum/date 14.02.2006
Stand/version 0.17
Änderungen vorbehalten! Subject to changes without notice!
MADE BY
SAD GmbH
A MEMBER OF WITTUR
9. Operation and maintenance
9.1. General
The regulations concerning operation, maintenance and
inspection in accordance with the applicable safety regu-
lations in lift construction such as DINEN81 "Safety rules
for the construction and installation of lifts", Part 1:
"Electric lifts" and other relevant regulations are to be
strictly observed.
The operator is responsible for the proper installation of
the motor with regard to safety requirements as well as
for its inspection and maintenance as specified in the
applicable regulations.
The proper maintenance of gearless lift
machines requires adequately trained spe-
cialist personnel and specialised devices and
tools.
Repairs other than those described in these
operating instructions are not to be carried
out by the lift fitter/maintenance techni-
cian for liability reasons.
Bolt/screw tightening torques
When doing any work on the machine or
replacing parts, make sure that the speci-
fied bolt/screw strength class and the tight-
ening torques are observed (see table).
Secure the bolts/screws with
"omnifit 100"
or a similar product against accidental
loosening.
9.2. Maintenance intervals
Abmessung Anzugsdrehmoment
Festigkeit 8.8 10.9 12.9
M4 2,8 4,1 4,8
M5 5,5 8,1 9,5
M6 9,6 14 16
M8 23 34 40
M10 46 67 79
M12 79 115 135
M16 195 290 340
M20 395 560 660
M24 680 970 1150
Check the thickness
of the brake linings every six months see section 9.8.
Check the remaining
play of the brake every six months see section 9.8.
Check the brake air
gap every six months see section 9.8.
Check the proper
functioning of the
brakes and the brake
monitoring switches
every six
months see section 9.8.
Check the bearing
noise every six months
Relubricate the bear-
ings see section 9.3.
Check the traction
sheave for wear every six months
Check the tightening
torques of the frame,
brake and traction
sheave fastening
bolts/screws
every six
months see section 9.1.
Check the traction
sheave for tight seat-
ing
every six
months see section 9.5.
Check the electrical
cables every six months see section 7.
Check the rope slip-
off guard every six months see section 6.
Check the guards and
safety devices for
their condition and
safe functioning
every six months
Clean the external
machine surfaces;
clean the fan filter
mats
as required see section 9.4.
Danger
Warning

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 19
Datum/date 14.02.2006
Stand/version 0.17
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MADE BY
SAD GmbH
A MEMBER OF WITTUR
9.3. Lubricating instructions
Relubricate the main bearing after about 7,000 hours of
operation, using a KP 2 N-30 to DIN 51502 grease such
as Wälalit LZ2 or Klüberlub BE41-542 (approx. 58g on
DE and approx. 16g on NDE).
Use a conventional grease gun and press the grease into
the hydraulic-type grease nipples to DIN71 412 AM 10x1.
The relubricating points are provided on the D and ND
end shields of the machine. The DE grease nipple is
located behind the traction sheave. Turn the traction
sheave until one vent hole coincides with the grease nip-
ple, and the nipple is thus accessible.
traction
sheave
grease
nipple
DE grease nippl
9.4. Fan filter mats
Remove the three screws from the protective screen.
Then remove the screen and filter to clean or replace the
filter mats.
Do this work only with the fan switched off
as the rotating fan wheel could be danger-
ous.
Caution
9.5. Replacing the traction sheave
The traction sheave can work loose if it is
not properly installed.
Disassembly
•Power off the system and safeguard against uninten-
tional reclosing
•Secure the car and the counter-weight
•Remove the rope slip-off guards and the rope covers, if
provided
•Relieve the load on the traction sheave; remove the
ropes
•Support the traction sheave by means of a hoisting
gear
•Remove the 12 fastening bolts
•Insert the M16x65 bolts into the two threaded forcing
holes and force off the traction sheave
Assembly
•Clean the traction sheave and the rotor flange
•Slide the traction onto the rotor flange as far as possi-
ble
•Insert the fastening bolts and tighten diagonally oppo-
site bolts. Use "omnifit 100" or a similar adhesive to
secure the bolts. Tighten them along the bolt hole circle
(MA=230Nm) with a torque spanner
•Replace the ropes and reinstall the rope slip-off guard.
Danger
Seilabsprung-
sicherung
rope slip-off
guard
Befestigungs-
schrauben
fastening bolt
s
Abdrück-
gewinde
forcing
threads

Gearless Lift Machine
WSG-18 and WLG-18
Operating Instructions
Seite/page 20
Datum/date 14.02.2006
Stand/version 0.17
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MADE BY
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A MEMBER OF WITTUR
9.6. Emergency evacuation
The lift design engineer must always provide for an elec-
tric return motion control (EN 81-1 /12.5.2) since a hand
wheel cannot be used with this gearless machine because
of its high torque.
Should a failure occur with the car at rest, the car can be
moved with the drive connected to the mains or to an
uninterruptible power supply (UPS) or mechanically
under its own load with the emergency brakes temporar-
ily released.
These brakes are released electrically either from the
mains or using a UPS. They can, however, also be released
manually.
The manual releasing of the shoe brake can be performed
by using the release lever.
A mechanical return motion device
can be fitted at the operator's own
responsibility if the lift needs to be
moved manually in case of a
breakdown or if the car is caught
by a safety device. The use of the
return motion device is shown in
the drawing.
Bolt the bearing
block to a cross-
beam at the recom-
mended spacing. The
cross-beam is firmly
connected to the lift
machine. When fit-
ting the device, a
switching command
"electrical supply dis-
connected" must be
activated.
The specific conditions resulting
from the different traction sheave
types and brake arrangements
must be taken into account in
regard to the arrangement of the
return motion device.
Then screw the threaded bolt into
an appropriately positioned
threaded hole in the traction
sheave using a spanner. While
releasing the brake magnets, either
electrically or using the brake lever plates, the slide block
can be displaced by turning the corresponding nuts. This
turns the traction sheave. The bolt can then be moved to
a new hole in the traction sheave, if required.
The lift must be braked when changing the
bolt.
Return motion device
Note
Danger
nut (1) SW 36
slide-block (2)
center of traction sheave
traction sheave
lift machine
(left or right)
Recommendation
for mounting the
return motion
device
manual
release lever