LNS ALPHA SL65 S User manual

For CNC machine tool peripherals,
it’s LNS , then all the rest
ALPHA SL65 S BARFEED
Service Manual
9.222.01.01.EN.US

GENERAL
SERVICE MANUAL –ALPHA SL 65S
IMPORTANT
READ THIS MANUAL CAREFULLY BEFORE USING
AND RETAIN FOR FUTURE REFERENCE.
Published: 08/2020
© LNS America 2020 – 9.222.01.01 EN (V00.0) – Service manual – Printed in LNS America

GENERAL
SERVICE MANUAL – ALPHA SL 65S
TABLE OF CONTENTS
1. GENERAL .................................................................................................................................6
ABOUT THIS SERVICE MANUAL ............................................................................................6
WHO IS THIS MANUAL FOR?..................................................................................................6
OTHER APPLICABLE DOCUMENTS.......................................................................................6
IN THE CASE OF DAMAGE CAUSED DURING TRANSPORTATION....................................6
SYMBOLS AND WARNING LABELS........................................................................................7
CONVENTIONAL TERMS AND SYMBOLS..............................................................................8
COPYRIGHT..............................................................................................................................8
LIABILITY...................................................................................................................................8
SAFETY INSTRUCTIONS.........................................................................................................9
2. PROCEDURES........................................................................................................................10
LIFTING THE BARFEED.........................................................................................................10
MOUNTING OF X-AXIS RETRACTION SYSTEM..................................................................11
MOUNTING OF Z-AXIS RETRACTION SYSTEM ..................................................................12
POSITIONING .........................................................................................................................13
LEVELING ...............................................................................................................................14
ALIGNMENT............................................................................................................................17
CENTER ADJUSTMENT.........................................................................................................18
MOUNTING THE MAGAZINE.................................................................................................19
ANCHORING...........................................................................................................................23
PUSHER CHANGEOVER .......................................................................................................24
SETTING AUTOMATIC/MANUAL SEQUENCE......................................................................25
BAR FEEDER IN AUTOMATIC MODE...................................................................................27
SWITCH THE BAR FEEDER INTO MANUAL SEQUENCE ...................................................28
MAGAZINE STOPPING FINGERS ADJUSTMENT................................................................28
3. MECHANICAL EQUIPMENT ..................................................................................................30
LOADING SYSTEM.................................................................................................................30
FEEDING SYSTEM.................................................................................................................31
TRANSMISSION......................................................................................................................32
PUSHER..................................................................................................................................33
V CHANNEL SET ....................................................................................................................34
SPINDLE LINER......................................................................................................................36
4. PNEUMATIC EQUIPMENT.....................................................................................................38
LAYOUT OF THE ELEMENTS................................................................................................38
F.R.L COMBINATION UNIT (FILTERING-REGULATIION-LUBRICATION)...........................39
ADJUSTING THE SERVICE PRESSURE ..............................................................................39
SOLENOID VALVE MANIFOLD..............................................................................................39
MANUAL OPERATION............................................................................................................40
AIR PRESSURE SWITCH SP0...............................................................................................40
5. ELECTRICAL EQUIPMENT....................................................................................................42
SAFETY COMPONENTS........................................................................................................42
SAFETY SWITCHES...............................................................................................................43
ELECTRICAL COMPONENTS................................................................................................44
ELECTRICAL CABINET..........................................................................................................45
REMOTE CONTROL...............................................................................................................47
SERVO AMPLIFIER ................................................................................................................51
SAFETY RELAY......................................................................................................................51
TRANSFORMERS...................................................................................................................52

GENERAL
SERVICE MANUAL –ALPHA SL 65S
ANALOG MODULE.................................................................................................................52
PROGRAMMABLE LOGIC CONTROLLER ...........................................................................53
PCB (PRINTED CIRCUIT BOARD)........................................................................................54
ACCESSORY COMPONENTS............................................................................................... 55
CONNECTIONS......................................................................................................................56
6. SETTINGS .............................................................................................................................. 60
OPERATION PARAMETERS................................................................................................. 60
DESCRIPTION........................................................................................................................62
7. SERVICE PARAMETERS ...................................................................................................... 70
ACCESSING ...........................................................................................................................70
QUICK PREVIEW ...................................................................................................................71
DESCRIPTION........................................................................................................................72
8. MAINTENANCE...................................................................................................................... 84
INSPECTIONS........................................................................................................................84
CHECK THE CONDENSATE COLLECTOR ..........................................................................85
CHECK LUBRICATOR ...........................................................................................................85
CLEANING.............................................................................................................................. 86
9. TECHNICAL CHARACTERISTICS........................................................................................ 88
10. DISPOSAL.............................................................................................................................. 90
MACHINE................................................................................................................................ 90
11. TROUBLESHOOTING............................................................................................................ 92
WARNING MESSAGES..........................................................................................................92
ERROR MESSAGE MAP........................................................................................................95
PLC ALARMS..........................................................................................................................96
SEQUENCE LISTING........................................................................................................... 101
SERVO AMPLIFIER ERROR MESSAGES .......................................................................... 103
FAULT MESSAGE TABLE....................................................................................................103
ALARMS CAUSE AND SOLUTIONS....................................................................................104
PLC INPUTS/OUTPUTS.......................................................................................................116
PRODUCT MANUALS.......................................................................................................... 118
AFTER-SALES SERVICE..................................................................................................... 120
12. APPENDICES....................................................................................................................... 122
GLOSSARY........................................................................................................................... 122
WIRING DIAGRAM BSL65 A8..............................................................................................123
PNEUMATIC DIAGRAM ....................................................................................................... 128
ORDER FORM...................................................................................................................... 129

GENERAL
SERVICE MANUAL – ALPHA SL 65S

GENERAL
SERVICE MANUAL –ALPHA SL 65S
1. GENERAL
ABOUT THIS SERVICE MANUAL
This service manual describes the maintenance and setting procedures for the bar feeder.
For more information on best practices for installation and use, refer to the instruction manual.
WHO IS THIS MANUAL FOR?
Service technicians:
•Qualified technicians who are authorized to:
- assemble and install the machine
- perform repair and maintenance work
- operate on electrical equipment
- modify certain components of the machine
Manufacturer:
•Qualified technicians who are authorized to:
- assemble and install the machine
- perform repair and maintenance work
- operate on electrical equipment
•Engineers/experts who are authorized to:
- modify the machine software
- modify certain components of the machine
OTHER APPLICABLE DOCUMENTS
The machine contains integrated components from other manufacturers.
In the case of these components, their respective manufacturers have carried out a risk assessment, and have declared that
their design is fully compliant with the European standards in force.
Information regarding the proper use of these integrated components is available in the component instructions and provided
by the various manufacturers.
The feeder complies with the European standards that are specified in the declaration of conformity and integration.
IN THE CASE OF DAMAGE CAUSED DURING TRANSPORTATION
LNS accepts no responsibility in case of deterioration or degradation of the products during their transportation.
LNS will assert a claim for loss or damage to those carriers that have been arranged by LNS. If LNS does not make the
freight arrangements, we are not responsible for the freight issues once the article has been loaded on the truck from our
dock.
If you notice that the product is damaged at the time of delivery. Please take pictures, and contact LNS.

GENERAL
SERVICE MANUAL – ALPHA SL 65S
SYMBOLS AND WARNING LABELS
Warning labels and consequences in case of non-compliance with the safety instructions
DANGER
Type and origin of danger!
Consequences of non-compliance with the warning.
What to do to avoid danger.
Warnings of imminent danger, which, if not avoided, may result in:
serious or fatal injury
WARNING
Type and origin of danger!
Consequences of non-compliance with the warning.
What to do to avoid danger.
Warnings of potential danger, which, if not avoided, may result in:
serious or fatal injury
CAUTION
Type and origin of danger!
Consequences of non-compliance with the warning.
What to do to avoid danger.
Warnings of a potentially dangerous situation, which, if not avoided, may cause:
minor injuries.
NOTICE
Type and origin of danger!
Consequences of non-compliance with the warning.
What to do to avoid danger.
Warnings of a potentially dangerous situation, which, if not avoided, may cause:
Material damage.
INFORMATION
Type and origin of danger!
Consequences of non-compliance with the warning.
What to do to avoid danger.
Information and notes
CAUTION
Type and origin of danger!
Consequences of non-compliance with the warning.
What to do to avoid danger.
Warnings of a danger, which, if not avoided, may lead to:
damage to the environment

GENERAL
SERVICE MANUAL –ALPHA SL 65S
CONVENTIONAL TERMS AND SYMBOLS
The instructions for use of the following conventional terms and symbols:
General risks
Risks of electrocution
Crushing hazard
Harmful to the environment
Material damage
Information, notes
→
Return
1), 2)
Instructions for individual actions consisting of several steps
The diagrams of the plates illustrated in this manual make no distinction between the different models.
Therefore, they apply to all models covered by this service manual.
The service manual uses the following designations to define the position of an element in space (positioning).
The terms "left", "right", "front" and "rear" refer to the direction of use of the machine.
COPYRIGHT
Any reproduction, recording or distribution of all or part of this manual, in any form or by any means, mechanical, photographic,
audio or other, is strictly prohibited without the express written permission of LNS.
LNS accepts no liability for any errors in this manual and any resulting complications.
The product names indicated in this manual are registered trademarks.
LIABILITY
LNS and its subsidiaries accept no liability for any debts, losses, expenses or damages incurred or suffered by the purchaser
of this product or a third party as a result of an accident, misuse or improper use, or effects arising from unauthorized
modification, repair or alteration by LNS.
LNS and its subsidiaries will not be liable for damages and problems arising from the use of options and products other than
those provided or approved by LNS.

GENERAL
SERVICE MANUAL – ALPHA SL 65S
SAFETY INSTRUCTIONS
NOTICE
The manufacturer accepts no responsibility for damage resulting from non-
compliance with the documentation.
•LNS accepts no responsibility for accidents or material damage resulting from failure to observe the safety instructions.
•Never handle the equipment without taking into account the safety instructions and instructions for use. Safety
instructions for the bar feeder, as well as the CNC lathe, must be strictly observed.
•The equipment must not be used or handled by unskilled personnel, children or persons under the influence of alcohol or
medication.
•It is recommended not to wear jewelry and loose clothing, and to tie long hair.
•Always uncouple the bar feeder from the machine before removing the covers.
•It is strictly forbidden to remove safety equipment. If necessary, to ensure the smooth running of an adjustment or
maintenance procedure, it must be reinstalled immediately afterwards.
•Never walk on the belt.
•Never put your hands into the moving bar feeder.
•No servicing should be carried out on the interface or inside the electrical cabinet while the bar feeder or the lathe is
powered on.
•It is strictly forbidden to bridge or remove circuit breakers and main switches, especially safety switches.
•To ensure the safety of components and personnel, observe the points indicated for lifting and moving the bar feeder. It
is expressly forbidden to stay near the suspended load or in the operating area of the crane, the forklift truck or any other
lifting and transport equipment.
•Be careful not to hit the bar feeder when it is moving, as this may damage it.
•Never move the bar feeder while it is powered on.
•Always switch off the bar feeder prior to service, maintenance or repair.
•The work area around the bar feeder must be well lit and clear. It is important to clean the floor on a regular basis, as the
presence of oil can result in falls.
•Do not place the machine in a damp area, and make sure that the water or oil never comes into contact with the
electrical equipment.
•Never try to recharge the batteries of the PLC.
•Always use the parts supplied or recommended by LNS for use/intervention on the bar feeder for maintenance purposes.
•If it is necessary to move the bar feeder after commissioning, always contact LNS or a local representative before
restarting the system.

PROCEDURES
SERVICE MANUAL –ALPHA SL 65S
2. PROCEDURES
LIFTING THE BARFEED
INFORMATION
For installing the bar feeder, it’
s advisable to contact us or one of our
branches, agents. W
e cannot be held responsible for any malfunction
resulting from an incorrect installation in which we did not take part in.
1. Insert two bars into the holes of the stands, remove the magazine if it interferences the bars.
Place the hoist vertically above the bar feeder.
2. Place the straps over the ends of the bars, and then attach them to the hoist.
The loading capacity of both the hoist and straps must be larger than 1 ton.
3. Raise the hoist to tighten the straps.
4. Remove the screws for holding the bar feeder to the pallet during transportation.
5. Lift the bar feeder and ensure that the bar feeder is balanced. Remove the pallet.
6. Move the bar feeder, taking care that it remains horizontal and that no one is nearby or under the
suspended load.
Do not knock the bar feeder as you move it; this may damage it.
7. Place the bar feeder behind the lathe, as close as possible and in approximate alignment with the
lathe spindle.
For the placement, the stationary and mobile space requirements for the lathe and the bar feeder
should be taken into account.

PROCEDURES
SERVICE MANUAL – ALPHA SL 65S
MOUNTING OF X-AXIS RETRACTION SYSTEM
INFORMATION
The magazine slides with the bar feeder when the retraction is used. Before
mounting the system, make sure the floor surface is flat and smooth..
The retraction system allows the bar feeder moving on certain distance so that there is some space behind the spindle for
service.
1. Remove the safety sensor protector (2) and sensor (1)
2. Screw the retraction system toward the bar feeder stand. Notice the locking device must be
placed toward the front of the bar feeder.
3. Move the bar feeder backward and forward couple times and confirm the retraction system was
mounted properly.
4. Mount the safety sensor (1) and sensor protector (2).
5. Insert the cable into the electrical cabinet. Make sure that the cable will not be clamped when the
bar feeder is moving on the retraction system.
1
2

PROCEDURES
SERVICE MANUAL –ALPHA SL 65S
MOUNTING OF Z-AXIS RETRACTION SYSTEM
INFORMATION
The magazine slides with the bar feeder when the retraction is used. Before
mounting the system, make sure the floor surface is flat and smooth..
The Z-axis retraction system allows the bar feeder moves among the longitudinal direction. This movement gives more space
on the lateral direction.
1. Remove the safety sensor protector (2) and sensor (1).
2. Screw the retraction system toward the bar feeder stand. Notice the locking device must be
placed toward the front of the bar feeder.
3. Move the bar feeder backward and forward couple times and confirm the retraction system was
mounted properly.
4. Mount the safety sensor (1) and sensor protector (2).
5. Insert the cable into the electrical cabinet. Make sure that the cable will not be clamped when the
bar feeder is moving on the retraction system.
1
2

PROCEDURES
SERVICE MANUAL – ALPHA SL 65S
POSITIONING
The bar feeder must be placed behind the lathe as closer as it could be. The maximum distance between the lathe and bar
feeder should not exceed 20mm (A) dimension. In the other words, the bar stock length should not exceed spindle length.
BAR FEEDER WITHOUT RETRACTION SYSTEM
BAR FEEDER WITH RETRACTION SYSTEM
If the bar feeder is equipped with retraction system, please position the bar feeder after the retraction is locked on the bar
feeder.

PROCEDURES
SERVICE MANUAL –ALPHA SL 65S
LEVELING
INFORMATION
Before preceding this step, make sure that the lathe is leveled.
BAR FEEDER WITHOUT RETRACTION SYSTEM
1. Put the level gauge on the bar feeder stand.
2. Loose 8 nuts (A) on the stand.
3. Level the bar feeder by adjusting 8 screws (B).
Turn the bolt clockwise until it touches against the ground and to lift the bar feeder or turn it
counter-clockwise to lower the bar feeder.
4. Lock nuts (A) after the leveling is finished.
A
B

PROCEDURES
SERVICE MANUAL – ALPHA SL 65S
BAR FEEDER WITH X-AXIS RETRACTION SYSTEM
1. Verify that nuts (A) are locked to fixed stand.
2. Put the level gauge on the bar feeder stand.
3. Loose nuts (B) on the stand bottom plate.
4. Turn screws (C) clockwise to lift / counter-clockwise to lower bar feeder for leveling.
5. Lock all nuts (B) after the leveling is finished.

PROCEDURES
SERVICE MANUAL –ALPHA SL 65S
BAR FEEDER WITH Z-AXIS RETRACTION SYSTEM
1. Verify that nuts (A) are locked to fixed stand.
2. Put the level gauge on the bar feeder stand.
3. Loose nuts (B) on the stand bottom plate.
4. Turn screws (C) clockwise to lift / counter-clockwise to lower bar feeder for leveling.
5. Lock all nuts (B) after the leveling is finished.

PROCEDURES
SERVICE MANUAL – ALPHA SL 65S
ALIGNMENT
1. Open both stand covers.
Make sure that nut B is contacting plate C
2. Open the electrical cabinet.
Loose nuts A on both sides (total 6 nuts).
3. Adjust the bar feeder height by turning nuts B on each stand.
Note that nut D must be always locked and should not be adjusted.
4. After finishing all adjustments, lock A and close both stand covers.
B
C
D
A
A
A

PROCEDURES
SERVICE MANUAL –ALPHA SL 65S
CENTER ADJUSTMENT
Designation
Description
1
Spindle
2
Chuck
3
Pusher
4
Spindle rear end
5
Spindle front end
1. Pusher and bar should be fed into the center of lathe spindle.
2. Move forward pusher out of bar feeder, check its center and lathe spindle center carefully and then
adjust bar feeder position until pusher center matches spindle center perfectly. On account of the weight
which might droop the pusher, adjust the center to match spindle center at rear and front end as precise
as possible.

PROCEDURES
SERVICE MANUAL – ALPHA SL 65S
MOUNTING THE MAGAZINE
The magazine is delivered in a folded down position. The user has to prepare it on the bar feeder before installation. Please
follow the procedures below to install the magazine according to your bar feeder type.
BAR FEEDER WITHOUT RETRACTION SYSTEM
1. Unlock the magazine brackets by loosing screws pointed. Raise the brackets and then lock
screws back.

PROCEDURES
SERVICE MANUAL –ALPHA SL 65S
2. Mount the magazine stands.
Loose nut C.
Tilt the magazine by adjusting nut D.
Lock nut C after the adjustment is finished.
3. Lock the magazine brackets by tightening screws pointed.
C
D