WEISS LS 280 User manual

Operating manual
Linear Assembly System LS 280
Mechanical system documentation
980-240511001 / EN 05 / 2011

Document: Operating Manual
Variant: Mechanical System Documentation
Valid for: Linear Assembly System
Type: LS 280
Revision R05-2011
This document has been prepared by
WEISS GmbH, Siemensstrasse 17, D-74722 Buchen
Service
Tel: +49 6281 52080
www.weiss-gmbh.de
© WEISS GmbH
All rights in this document are the copyright of WEISSGmbH. This document may not be copied or reproduced, in
whole or in part, without the written permission of WEISS GmbH. This document is only intended for the user of
the product described and may not be passed on to third parties, in particular competitors.

WEISS
Linear Assembly System LS 280 Mechanical System Documentation R05-2011
3/52
List of contents
1. Introduction ........................................................................................................... 5
1.1. Definition ....................................................................................................... 5
1.2. Correct use ................................................................................................... 5
1.3. Incorrect use ................................................................................................. 5
1.4. Laws / EC Directives / Norms ....................................................................... 6
1.5. EC Declaration .............................................................................................. 6
1.6. System-dependant documentation ............................................................... 6
1.7. Operating manual ......................................................................................... 7
1.8. Guarantee ..................................................................................................... 8
2. Safety ..................................................................................................................... 9
2.1. Fundamental safety instructions ................................................................... 9
2.2. Safety equipment for the machine .............................................................. 10
2.3. Residual hazards ........................................................................................ 11
3. Product description ............................................................................................ 13
3.1. Structure ..................................................................................................... 13
3.2. Function of the modules .............................................................................. 14
3.3. Technical data ............................................................................................. 25
4. Transportation ..................................................................................................... 27
4.1. Safety during transportation ........................................................................ 27
4.2. Appliances and auxiliary equipment approved for transportation ............... 27
4.3. Transportation damage ............................................................................... 28
4.4. Intermediate storage ................................................................................... 29
5. Installation ........................................................................................................... 30
5.1. Safety during installation ............................................................................. 30
5.2. Installation prerequisites ............................................................................. 31
5.3. Installing the machine ................................................................................. 32
5.4. Instructions on disposal of packaging material ........................................... 36
6. Commissioning ................................................................................................... 37
6.1. Safety during commissioning ...................................................................... 37
6.2. Initial commissioning ................................................................................... 38
6.3. Recommissioning ........................................................................................ 38
7. Operation ............................................................................................................. 39
7.1. Safety during operation ............................................................................... 39
7.2. Operating the machine ................................................................................ 39
7.3. Operating personnel workstations .............................................................. 39
8. Malfunctions ........................................................................................................ 40
8.1. Safety when remedying malfunctions ......................................................... 40
8.2. Errors / Cause / Remedy ............................................................................ 40
8.3. Customer Service ....................................................................................... 40
9. Maintenance ........................................................................................................ 41
9.1. Safety during maintenance ......................................................................... 41
9.2. Maintenance work ....................................................................................... 42
9.3. Inspections .................................................................................................. 42
9.4. Maintenance ............................................................................................... 43
9.5. Repair ......................................................................................................... 44
10. Decommissioning / Dismantling / Disposal ...................................................... 47
10.1. Safety during decommissioning and dismantling ........................................ 47
10.2. Decommissioning ........................................................................................ 47
10.3. Dismantling and disposal ............................................................................ 47
11. Service and spare parts ...................................................................................... 49
11.1. Ordering spare parts ................................................................................... 49
11.2. Spare parts ................................................................................................. 49
12. Appendix .............................................................................................................. 50
12.1. Personal notes ............................................................................................ 50
1
2

Linear Assembly System LS 280 Mechanical System Documentation R05-2011
4/52
WEISS
Illustration index
Modules of the machine ................................................................................................ 13
Assembly cell with locking station ................................................................................. 14
Single locking station ..................................................................................................... 14
Double locking station ................................................................................................... 14
Stationary support ......................................................................................................... 15
Workpiece carrier in locked position .............................................................................. 16
Roller in the curved path (view from above) .................................................................. 16
Drive unit of the locking station ..................................................................................... 16
Sensors at the intake of the locking station ................................................................... 17
Sensors at the outtake of the locking station ................................................................. 17
Sensors on the drive unit at indexing pitch 70, 140, 280 mm ........................................ 17
Sensors on the drive unit at indexing pitch 560 mm ...................................................... 17
Assembly cell with stop station as manual workstation ................................................. 18
Stop unit ........................................................................................................................ 18
Sensors on the intake of the stop station ...................................................................... 19
Sensors on the outtake of the stop station .................................................................... 19
Belt section with workpiece carrier train ........................................................................ 20
Belt drive with motor (without cover) ............................................................................. 20
Corner unit 180° ............................................................................................................ 21
Corner unit 90° .............................................................................................................. 21
Workpiece carrier train .................................................................................................. 22
Lubricating point in the guide rail ................................................................................... 24
Lubricating point on the transport cam .......................................................................... 24
Example of a type plate ................................................................................................. 25
Transporting modules in the packaging ........................................................................ 27
Transporting modules without packaging ...................................................................... 28
Align and connect modules ........................................................................................... 32
Limit switch strip mounted in correct position ................................................................ 33
Limit switch strip rotated for transport ........................................................................... 33
Removing the plug ........................................................................................................ 33
Inserting workpiece carrier trains .................................................................................. 34
Mounting the carrier plate .............................................................................................. 35
Stationary support ......................................................................................................... 35
Central lubrication unit with mounting plate ................................................................... 36
Piston distributor with lubricating lines, pressure switch and vent screw ...................... 36
Replacing the toothed belt ............................................................................................. 45
Replacing the workpiece carrier train ............................................................................ 46
1
2

WEISS
Linear Assembly System LS 280 Mechanical System Documentation R05-2011
5/52
Introduction
1.1 Definition
1
1Introduction
1.1 Definition
Linear Assembly Systen LS 280
The Linear Assembly System LS 280 is designed as a base machine for installation in a
total machine that is used for assembly and test tasks in the area of automation enginee-
ring. It is designed exclusively for indexed horizontal linear motion of a payload that
cannot react in a manner that is hazardous to personnel, material, or the environment
when manipulated. In addition the Linear Assembly System LS 280 should only be used
as described in this operating manual and in accordance with the specifications cited in
the sales documents.
Subsequently the Linear Assembly System LS 280 will simply be referred to as
"machine" in this manual.
1.2 Correct use
The machine is a incomplete machine as specified in Directive 2006/42/EC,
Article1gand2g.
The machine is designed for integration in other machines, in other incomplete machines
or equipment or for connection to these.
It may only be used within the limitations defined in the order characteristics.
Commissioning is prohibited until conformity with Directive 2006/42/EC, and all other
applicable directives has been determined and confirmed for the facility in which the
machine is installed.
Observance of the accompanying documentation and adherence to maintenance
regulations are also component parts of correct use.
1.3 Incorrect use
Any use of the machine above or beyond the directions for correct use is regarded as
incorrect and prohibited.
Do not subject the machine to loads that exceed the maximum limits. Possible additions
to the machine are defined in the order characteristics and must be complied with.
Drilling and welding processes to add additional components are prohibited.
Do not operate the machine without supplemental protective devices. Integration within a
suitable safety concept is the responsibility of the owner.
The machine is not suitable for use
•
in an environment with gases or radiation.
•
in wet or damp environments of any kind (water, oils, acids, steam or vapours, etc.).
•
in a dusty environment.
•
in an aggressive environment.
•
in an abrasive environment.
•
in potentially-explosive atmospheres.
•
for chip removal processes.

Linear Assembly System LS 280 Mechanical System Documentation R05-2011
6/52
WEISS
Introduction
1.4 Laws / EC Directives / Norms
1
1.4 Laws / EC Directives / Norms
The machine is designed and constructed to conform to
•
applicable laws
•
Directive 2006/42/EG (Machinery Directive)
•
Low Voltage Directive, 2006/95/EC
•
EMC Directive 2004/108/EC
•
and the harmonised standards that we have cited
and meets state-of-the-art technological standards in terms of its construction.
1.5 EC Declaration
An EC Declaration as specified by Directive 2006/42/EC (Machinery Directive) is
included with each machine at delivery.
The text of this EC Declaration is as follows:
WEISS GmbH Sondermaschinentechnik
Siemensstrasse 17
D-74722 Buchen
Declaration of incorporation of partly completed machinery
in accordance with EC Machinery Directive 2006/42/EC, Annex II B
Commissioning prohibition
We hereby declare the machine designated below with serial number LSXXXXXX is
designed for installation in a different machine, or should be joined together with other
machines to comprise a machine as specified in Directive 2006/42/EC.
Commissioning is prohibited until it has been determined that the machine in which the
above-cited product will be installed satisfies the provisions of the EC Machinery
Directive, and that a Declaration of Conformity in accordance with EC Machinery
Directive 2006/42/EC, Annex II A has been issued.
1.6 System-dependant documentation
In addition to this operating manual, further documents are required to ensure safe ope-
ration of this machine. The specifications stated in these documents are to be observed.
•
Operating Manual LS 280 electrical system documentation
•
System-dependant documentation LS 280

WEISS
Linear Assembly System LS 280 Mechanical System Documentation R05-2011
7/52
Introduction
1.7 Operating manual
1
1.7 Operating manual
Translation of the Original Operating Manual
Mechanical System Documentation
This operating manual is a translation of the original operating manual and is part
of the scope of delivery.
We reserve the right to undertake modifications resulting from further technological
development which diverge from the data and illustrations contained in this operating
manual.
The operating manual and the associated valid documentation are not subject to an auto-
matic revision service.
Information on the respective current edition can be obtained from the manufacturer.
Local regulations must be heeded.
This operating manual describes handling of the machine and contains important instruc-
tions and information to assist you in correct use of the machine.
The operating manual is designed for trained technical personnel and instructed persons.
It should be kept at the location of use of the machine at all times and read, understood
and applied by all persons entrusted with work on or with the machine.
Safety instructions in individual chapters should be observed.
1.7.1 Explanation of safety instructions in this manual
This manual contains instructions which you should observe for your personal safety and
to avoid material damage.
Safety instructions for your personal safety are highlighted by a sign containing a warning
triangle and signal word. The associated text describes the hazard involved, avoidance
options and the consequences of a failure to heed the safety instruction.
General instructions or instructions relating to possible material damage are highlighted
by a sign without a warning triangle.
They are, depending on the degree of risk involved, illustrated as follows:
A warning triangle with the signal word DANGER indi-
cates an immediate hazardous situation which, if not
avoided, will lead to fatalities or grievous injuries.
A warning triangle with the signal word WARNING in-
dicates an potential hazardous situation which, if not
avoided, can lead to fatalities or grievous injuries.
A warning triangle with the signal word CAUTION indi-
cates an potential hazardous situation which, if not
avoided, can lead to light or medium injuries.
A sign with the signal word NOTICE indicates potenti-
al material damage or provides additional information
which should be observed when operating the machi-
ne.

Linear Assembly System LS 280 Mechanical System Documentation R05-2011
8/52
WEISS
Introduction
1.8 Guarantee
1
1.7.2 Legend
In these manual images, symbols and abbreviations with the following meaning are used
for clarity:
1. Marks a numbered list.
a) Marks the second level of a numbered list.
•
Marks a list.
`Marks the second level of a list.
The book symbol before a section of text indicates additional applicable docu-
ments.
L
The information symbol before a section of text marks an additional note or an
important tip for use.
1.7.3 Index of valid pages
Pages of this operating manual including the title page: 52
1.7.4 Figures
The figures used are examples. There may be differences between the illustrations and
the actual delivery.
1.8 Guarantee
The machine is covered by a guarantee of 24 months without shift limitations.

WEISS
Linear Assembly System LS 280 Mechanical System Documentation R05-2011
9/52
Safety
2.1 Fundamental safety instructions
2
2Safety
2.1 Fundamental safety instructions
2.1.1 Operator‘s obligation to exercise diligence
This machine conforms to state-of-the-art technological standards and ensures a maxi-
mum level of safety.
However, this level of safety can only be attained under operating conditions if all measu-
res necessary for this have been taken. The operator‘s obligation to exercise diligence
includes planning of these measures and the inspection of their realisation.
The operator must ensure that
•
the machine is only used as intended.
•
the machine is only operated in faultless, functional condition and mechanical and
electrical safety devices are present.
•
required personal protective clothing is provided for and used by operating, mainte-
nance and repair personnel.
•
the operating manual and all other applicable documentation is maintained at all times
in legible condition and is accessible at the implementation site of the machine.
Ensure that all personnel who must execute activities tasks on the machine can
access the operating manual at all times.
•
only adequately qualified and authorised personnel maintain and repair the machine.
•
such personnel are instructed regularly in all questions concerning occupational
safety and environmental protection, including the operating manual and safety
instructions contained therein.
•
all safety instructions and warnings affixed to the product are not removed and must
remain legible.
•
national accident prevention guidelines and company-internal guidelines are complied
with.
•
VDE regulations are complied with.
•
the EMC legislation is complied with during installation.

Linear Assembly System LS 280 Mechanical System Documentation R05-2011
10/52
WEISS
Safety
2.2 Safety equipment for the machine
2
2.1.2 Requirements to be met by personnel
It is imperative that the following safety instructions be observed during all operations
involving the machine. This ensures avoidance of life-threatening injuries, machine
damage, other material damage and environmental damage.
Personnel must ensure that
•
trainees are initially permitted to only work on the machine under the supervision of an
experienced person.
•
all personnel who maintain the machine read the operating manual and confirm with
their signature that they have understood the operating manual.
•
unauthorised persons are not in the vicinity of the machine when tasks are being per-
formed.
•
supplemental to the operating manual the operating instructions as specified in labour
protection legislation and work equipment use legislation are complied with.
•
the operator or supervisory personnel are informed in the event of malfunction.
•
required personal protective clothing is used.
The following work described in this operating manual should only be realised by quali-
fied personnel:
•
Installation
•
Commissioning
•
Operating
•
Maintenance
2.2 Safety equipment for the machine
The operator is responsible for ensuring that a suitable safety concept is developed and
applied for the safe operation of the machine.
The operator must take all measures to protect his personnel against injury by the
machine.
These include:
•
Protective grid with monitored safety door
•
Emergency stop circuit
•
Light barriers or switch mats
•
Warning indicators

WEISS
Linear Assembly System LS 280 Mechanical System Documentation R05-2011
11/52
Safety
2.3 Residual hazards
2
2.3 Residual hazards
2.3.1 General residual hazards
2.3.2 Residual hazards due to mechanical causes
Risk of injury due to absent safety equipment.
Realisation of the safety concept is the responsibility of the operator.The operator must
provide for adequate safety measures (e.g. safety grid, light barriers, emergency stop
circuits, covers, warning indicators, etc.).
The workpiece carrier can collide with the loading device, if the machine is not handled
properly when loading. The mass inertia and the drive system result in damage to the
transport and guidance system. The owner must ensure a proper supply of workpieces.
Failure to comply with this instruction can result in severe or fatal injury.
Risk of explosion during operation in a potentially-explosive environment.
Due to constraints governing the correct used of the machine, the machine is not desi-
gned for use in a potentially-explosive atmospheres. The operator must take all
measures to ensure that the machine is operated in a correct manner.
Risk of injuries through burning.
The drive motors and frequency inverters can reach temperatures of up to 100 °C during
operation. Prior to carrying out any work on these components, the machine must first
cool down sufficiently to avoid any risk of burning through contact. Burn injuries will occur
if there is contact with hot components.
Use of spare parts / attachment of supplemental devices
If spare parts are used, or if supplemental devices are attached that are not approved by
the manufacturer, consequential damages can occur. Only use spare parts that are cited
in our spare parts list or spare parts that we have approved. You must consult with us prior
to attaching supplemental devices. Failure to comply with these instructions means that
the possibility of personal injury cannot be excluded.
Danger of crushing injuries due to impermissible changes
Injuries can occur as a consequence of impermissible changes. Do not make any
changes to the machine. Failure to comply with these instructions means that the possi-
bility of personal injury cannot be excluded.
Danger of crushing injuries
Do not, under any circumstances move a workpiece carrier train through the guide and
transport system of the machine by hand. Extremities can be crushed when reaching into
the machine.
Danger of injuries due to entanglement or winding
Loose clothing, long hair, or hanging jewelry can be caught, pulled along, or wound in by
the moving parts. Do not wear loose cloting, long, air or suspended jewelry when handling
the machine. Failure to comply with this prohibitory instruction result in severe injuries.

Linear Assembly System LS 280 Mechanical System Documentation R05-2011
12/52
WEISS
Safety
2.3 Residual hazards
2
2.3.3 Residual hazards due to electrical causes
Electric shocks can cause serious to fatal injuries.
Power and control connections can still conduct electricity even if the machine is at a
standstill. Work on electrical equipment should only be performed by qualified electricians
in compliance with the instructions in the operating manual for the electrical system docu-
mentation. Electrical connections for the machine should only be disconnected or
plugged in when the power supply is deactivated and secured against reactivation.
Touching energised components can lead to serious or fatal injuries.
A failure or malfunction of the control system can lead to injuries caused by uncon-
trolled system behaviour or automatic startup.
The operator must take all measures to ensure that the machine is only operated in
compliance with regulations.

WEISS
Linear Assembly System LS 280 Mechanical System Documentation R05-2011
13/52
Product description
3.1 Structure
3
3 Product description
3.1 Structure
The machine is comprised of the following modules, depending on the order:
•
Assembly cell with locking station [4]
•
Assembly cell with stop station [5]
•
Belt section [6]
•
Corner unit [1]
•
Workpiece carrier train [2]
•
Carrier plate [3]
•
Central lubrication unit [7]
•
Control packages [8]
The assembly cells are controlled by remote control packages which are part and parcel
of the machine.
Control packages as well as electrical components of the machine are described in
operating manual LS 280 electrical system documentation.
Fig. 1: Modules of the machine
See order layout in the system-dependant documentation LS 280.
7
3
12
4
5
6
8
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i

Linear Assembly System LS 280 Mechanical System Documentation R05-2011
14/52
WEISS
Product description
3.2 Function of the modules
3
3.2 Function of the modules
3.2.1 Assembly cell with locking station
The assembly cell with locking station is used for simultaneous transport and positioning
of multiple workpieces. Depending on the indexing pitch and version, a different number
of locked processing positions is available.
The assembly cell with locking station is comprised of the following components:
•
Locking station with sensors [1]
•
Placement plate [2]
•
Steel base frame [3]
Accessories:
•
Height-adjustable mounting plate [4]
•
Control cabinet
•
Stationary support
Fig. 2: Assembly cell with locking station
Locking station:
The locking station is available in two different versions; a single locking station and a
double locking station. Both modules have the same design principle and contain the
following components:
•
Steel transport cam with hardened cam path [1]
•
Cam drive with gear transmission, belt drive and three-phase current motor [2]
•
Steel guide rail with hardened and ground profile guide track
•
Sensors
X = direction of transport
X = direction of transport
Fig. 3: Single locking station Fig. 4: Double locking station
2
1
3
4
X
X
1
2
X
1
2
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i

WEISS
Linear Assembly System LS 280 Mechanical System Documentation R05-2011
15/52
Product description
3.2 Function of the modules
3
* Time from input of start signal in the control of the cell until output of the position signal from the control.
If process forces occur on an locking station that are applied to the work-
piece carrier, these forces must be absorbed by external supports.
Supports can be attached to the locking station as an option. Vertical process forces can
be absorbed directly via these stationary supports [1] above the assembly cell. In this
situation the carrier plates [2] that are equipped from below with a hardened support strip
[3] move on stationary attached support rollers [4] into the respective position. The sup-
ports are adjusted for the specific system (see order layout in the system-dependant
documentation LS 280 for the max. permissible application of force and transfer of force).
Fig. 5: Stationary support
Technical data locking station
Indexing pitches 70 mm, 140 mm, 280 mm, 560 mm
Workpiece change times at
indexing pitch
70 mm
140 mm
280 mm
560 mm
Approx. 0.4 sec.*
Approx. 0.5 sec.*
Approx. 0.6 sec.*
Approx. 1.2 sec.*
Number of locked positions
per indexing pitch
See order layout in the system-dependant docu-
mentation LS 280.
Positioning accuracy of
workpiece carrier
X / Y-Axis: ± 0.03 mm
Z-Axis: ± 0.06 mm
Direction of transport counterclockwise
1
2
3
4
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i

Linear Assembly System LS 280 Mechanical System Documentation R05-2011
16/52
WEISS
Product description
3.2 Function of the modules
3
Transport and locking mechanism of the locking station:
The workpiece carriers circulating on a guide rail are detected, transported, and locked
by a transport cam [1] in a single movement process.
The roller [2] of the workpiece carrier rolls off in the curved track [3] of the transport cam
[1]. Thanks to this curved path with modified sinoid an extremely smooth and harmonious
movement is achieved on the workpiece carrier.
The curved path of the transport cam has a pitch of zero at different points. At these
points the roller is locked between the two flanks of the curved path without noticeable
play and thus the workpiece carrier is also locked.
The angle of rotation of the transport cam is 360° by the indexing pitch of 70 mm and
140 mm, 720° by the indexing pitch of 280 mm and 1440° by the indexing pitch of
560 mm.
Drive unit of the locking station:
The transport cam of the locking station is driven by a three-phase current motor. The
speed is reduced within the drive unit via a single-stage belt drive and a gear
transmission.
The positioning and orientation of the transport cam relative to the drive shaft [1] is
realised by an alignment pin. The transport cam is connected to the drive shaft via a
clamping set.
Fig. 8: Drive unit of the locking station
Fig. 6: Workpiece carrier in locked
position
Fig. 7: Roller in the curved path (view from
above)
1
32
1
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i

WEISS
Linear Assembly System LS 280 Mechanical System Documentation R05-2011
17/52
Product description
3.2 Function of the modules
3
Sensors of the locking station:
The movement sequence on the locking station is controlled via 7 sensors. Three sen-
sors are located on the ingoing belt upstream from the station, and two sensors are
located on the outgoing belt. The movement of the transport cam is controlled by 2
sensors on the drive unit.
Activation of the supplying ingoing belt:
To ensure a smooth and impact-free process the transport speed of the supplying belt is
speed-controlled with the aid of a frequency inverter. At the approach of a workpiece
carrier to the locking station the speed of the ingoing belt is reduced so that the entry into
the locking station is smooth and impact-free.
The stop ramp of the frequency inverter can be adjusted to the particular entry situation
and will be optimised depending on the payload on the workpiece carrier and the cycle
count of the system.
Activation of the locking station:
By switching on the drive motor the transport cam is rotated until the workpiece carriers
are further cycled one position. The drive motor of the locking station is activated by a
frequency inverter that moves the transport cam into the mechanically locked position in
a regulated manner.
X = direction of transport
Fig. 9: Sensors at the intake of the
locking station
Fig. 10: Sensors at the outtake of the
locking station
"In Position" (back) "In Position" (back)
"Pre-trigger" (front) "Pre-trigger" (front)
Fig. 11: Sensors on the drive unit at
indexing pitch 70, 140, 280 mm
Fig. 12: Sensors on the drive unit at
indexing pitch 560 mm
X
1 2 3
X
1 2
1
22
1
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i

Linear Assembly System LS 280 Mechanical System Documentation R05-2011
18/52
WEISS
Product description
3.2 Function of the modules
3
3.2.2 Assembly cell with stop station
For difficult to automate processes a module for manual workstations is available.
Automated processes are always distributed to the individual locking stations of the
machine, even if the requirements imposed on the positioning accuracy are low.
The assembly cell with stop station is comprised of the following components:
•
Stop station with sensors [1]
•
Band section with ingoing belt [2] and outgoing belt [3]
•
Steel base frame [4]
Accessories:
•
Floorboard [5], height-adjustable
•
Top support plate [6]
•
Control cabinet
X = direction of transport
Fig. 13: Assembly cell with stop station as manual workstation
Stop station:
The stop station is only used in conjunction with an autonomous belt section, consisting
of speed-controlled ingoing belt and outgoing belt with constant speed. The stop unit
used herein is the holding point on a manual workstation, in order, for example, to load
the workpiece carrier or change product devices.
Depending on the requirement you can stop each workpiece carrier individually or stop
the entire workpiece carrier train via the stop unit.
Fig. 14: Stop unit
1
3
2
4
6
5
X
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i

WEISS
Linear Assembly System LS 280 Mechanical System Documentation R05-2011
19/52
Product description
3.2 Function of the modules
3
* Time from input of start signal in the control of the cell until output of the position signal from the control.
Sensors of the stop station:
The movement sequence on the stop station is controlled via 4 sensors.
There are 2 sensors on the ingoing belt upstream from the station, and likewise there are
2 sensors on the outgoing belt.
Activation of the supplying ingoing belt:
To ensure a smooth and impact-free process the transport speed of the supplying belt is
speed-controlled with the aid of a frequency inverter. When a workpiece carrier train
approaches the station the speed is reduced so that the entry into the stop station is
executed smooth and impact-free.
The stop ramp of the frequency inverter can be adjusted to the particular entry situation
and will be optimised depending on the payload on the workpiece carrier and the cycle
count of the system.
Activation of the stop station:
Opening the stop unit releases the workpiece carrier. The release can be executed via an
internal signal, e.g. from a foot switch, or it can also be executed externally via the
customer's control.
Technical data stop station
Function Stop per workpiece carrier
Stop per workpiece carrier train
Workpiece change times for
function
Stop per workpiece carrier
Stop per workpiece carrier train
Approx. 1.7 sec.*
Approx. 2.5 sec.*
Direction of transport counterclockwise
X = direction of transport
Fig. 15: Sensors on the intake of the stop
station
Fig. 16: Sensors on the outtake of the stop
station
X
231 2
X
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i

Linear Assembly System LS 280 Mechanical System Documentation R05-2011
20/52
WEISS
Product description
3.2 Function of the modules
3
3.2.3 Belt section
The belt sections are used for transporting the workpiece carrier between two assembly
cells. The band sections are available in different lengths for individual layout design.
Different speeds are used depending on the application.
The outgoing belt downstream from an locking station always runs at a constant high
speed.
Intermediate belts for overcoming greater distances also run at a constant speed.
The ingoing belt upstream from an locking station is always speed-controlled.
The minimum length of a belt section between two locking stations is 1200 mm and
consists of a outgoing belt and an ingoing belt.
The band sections consist of the following components:
•
Steel guide rail with hardened and ground profile guide track
•
Belt drive with three-phase current motor
•
Cast aluminium belt guide profile with VA slide rail
•
Toothed transport belt AT5 (PU belt, Nylon-coated)
•
Adjustable, belt deflection rollers for adjusting belt tension
•
Additional gear reduction stage as option for reduced speeds
•
Belt section lengths: 300 mm, 600 mm, 1200 mm, 1500 mm, 1800 mm, 2400 mm
(300 mm can only be used as outgoing belt between locking station and corner unit,
1800 mm and 2400 mm can only be used as outgoing belt and intermediate belt)
Fig. 17: Belt section with workpiece carrier
train
Fig. 18: Belt drive with motor (without cover)
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
i i i i i i i i i i i i i i i i i
Table of contents
Popular Accessories manuals by other brands

METER
METER TEROS 21 Integrator guide

Avid Technology
Avid Technology Fast Track C400 user guide

MivaTek
MivaTek FDS1300 user manual

DeWalt
DeWalt XR LI-ION DCB090 instruction manual

Scame electrical solutions
Scame electrical solutions ADVANCE-GRP 125A Installation, use and maintenance

Zte
Zte ZXG10-BS30 installation manual

Hach
Hach LDO user manual

ORION TELESCOPES & BINOCULARS
ORION TELESCOPES & BINOCULARS EQ-2 Equatorial Mount 9019 instruction manual

VWR
VWR 89511-416 user manual

SmartLabs
SmartLabs TriggerLinc 2421 quick start guide

PCB Piezotronics
PCB Piezotronics 113B23 Installation and operating manual

In-Circuit
In-Circuit ICflyAHRSII Installation guide & user manual