RNA SLC 500-200 User manual

Operating Instructions
for
Linear feeder
SLC 500 –200
SLC 500 –300
SLC 500 –400

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Table of Contents
1. Technical data.......................................................................................................................4
2. Safety directives....................................................................................................................6
2.1. Applicable directives and standards......................................................................................7
3. Design and functional description of linear feeder.................................................................7
4. Shipment and installation ......................................................................................................8
4.1. Shipment...............................................................................................................................8
4.2. Installation.............................................................................................................................8
5. Commissioning......................................................................................................................9
5.1. Tuning .................................................................................................................................10
5.1.1. Mechanical tuning procedure for use with compact controller.............................................10
5.1.2. Tuning procedure for use with frequency-controlled control system....................................11
5.2. Changing the spring configuration.......................................................................................12
5.3. Adjusting the desired feeding behaviour / synchronism of the linear feed rail.....................13
5.4. Spring angle adjustment......................................................................................................14
5.5. Adjusting the magnet air gap...............................................................................................14
6. Feed rail design rules..........................................................................................................14
7. Maintenance........................................................................................................................15
8. Spare parts and customer service.......................................................................................15
9. What if... (Advice on troubleshooting)..................................................................................15

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Declaration of Conformity
According to the Low-Voltage Directive 2014/35/EU
We hereby declare that the product meets the following requirements:
Low-Voltage Directive 2014/35/EC
Applied harmonised standards: DIN EN 60204 T1
Remarks:
We assume that our product will be incorporated into a stationary machine.
Rhein-Nadel-Automation
---------------------------------
Managing Director
Jack Grevenstein

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1. Technical data
Linear feeder, type SLC 500
Linear Feeder Type
SLC 500-200
SLC 500-300
SLC 500-400
Dimensions L x W x H (mm)
500 x 370 x 148
500 x 470 x 148
500 x 570 x 148
Weight
40 kg
40 kg
50 kg
Degree of protection
IP 54
IP 54
IP 54
Connecting cable length (m)
2
2
2
Power input1) (VA)
502
328
502
Current 1) (A)
2.52
1.64
2.52
Nominal magnet voltage 1) / frequency (V /
Hz)
200 / 50
200 / 50
200 / 50
Number of magnets
2
2
2
Magnet type
Article number
YZAW 080
35000763
YZAW 080
35000763
YZAW 080
35000763
Magnet colour
red
Air gap (mm)
3.0
3.0
3.0
Vibration frequency (Hz)
50 Hz
Number of spring packs
2
2
2
Standard spring set
Total number of springs
4 x 2.5
8 x 3.5
4 x 2.5
8 x 3.5
6 x 2.5
12 x 3.5
Spring dimensions (mm)
Length (borehole gauge) x width
108 (90) x 55 (25)
108 (90) x 55 (25)
108 (90) x 55 (25)
Spring thickness (mm)
2.5 + 3.5
2.5 + 3.5
2.5 + 3.5
Property classes of spring fastening bolts
8.8
8.8
8.8
Tightening torque of spring fastening bolts
30 Nm
30 Nm
30 Nm
Tightening torque of lateral spring fastening
bolts
80 Nm
80 Nm
80 Nm
Max. weight of linear rail, depending on
mass moment of inertia and desired feeder
speed
40 kg
50 kg
60 kg
Maximum rail length (mm)
1.000
1.000
1.000
Max. useful weight of the linear feeder unit,
depending on mass moment of inertia and
desired feeder speed
100 kg
100 kg
100 kg
1) For special connections (voltage / frequency) see rating plate on the magnet
Notice
All linear feeders listed in this table shall be operated only in conjunction with an RNA controller and with a
mains voltage of 230 V / 50 Hz. For special voltages and frequencies please refer to the separate data
sheet.

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Pin assignment
The feeders of type SLC 500 are devices with a vibration
frequency of 50 Hz. The jumper between contacts 4 and
5 must be removed here.
M20 gland
grey-2 100 Hz vibration frequency
black-1 50 Hz vibration frequency
Metal EMC gland for frequency-
controlled systems
Vibratory
feeder load
Mode of operation Vibration frequency
With jumper: 100 Hz
Without jumper: 50 Hz
Coding in connector

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2. Safety directives
We have taken great care in design and manufacture of our linear feeder in order to ensure smooth and safe opera-
tion. You, too, can make an important contribution towards safety at work. We therefore ask you to read the brief op-
erating instructions completely prior to commissioning the system. Observe the safety directives at all times!
Make sure that all persons working with or at the equipment also read the following safety directives carefully and fol-
low them!
These Operating Instructions only apply to the equipment types indicated on the cover page.
Notice
This hand indicates useful tips for operation of the linear feeder.
Attention
This warning triangle indicates safety notices. Non-observance of such warnings may cause serious injury
or even death.
Machine hazards
•Hazards arise mainly from the electrical components of the linear feeder. If the linear feeder comes into contact
with moisture or liquids there is risk of electric shock.
•Make sure that protective earthing of the power supply system is in perfect condition!
Intended use
The intended use of the linear feeder is the driving of feed rails. They serve for linear transfer as well as correctly ori-
ented and metered supply of bulk products.
Intended use also includes observance of the operating instructions and compliance with the maintenance rules.
For the technical data of your linear feeder please refer to 'Technical Data' in Section 1. Make sure that the rating data
of the linear feeder, control system and power supply are compatible.
Notice
Operate the linear feeder in perfect condition only.
Never operate the linear feeder in areas subject to explosion hazards or in wet areas.
Operate the linear feeder only in the configuration of drive unit, control unit and vibratory system agreed with the man-
ufacturer.
The linear feeder must never be subjected to any loads other than the parts for which this special type has been rated
and dimensioned.
Attention
It is strictly forbidden to disable any guards or safety devices!
Equipment user's duties
•Observe the directives given in the operating instructions for any kind of work (operation, maintenance, repairs,
etc.).
•Refrain from any working practice that affects the safety at the linear feeder.
•Make sure that only authorised personnel work at the linear feeder.
•Give immediate notice to the management of any changes that have occurred on the linear feeder affecting
safety.

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Attention
The linear feeder must be installed, put into operation and maintained by professional personnel only. Ob-
serve the legally binding provisions for the qualifications of qualified electrical workers and instructed
workers as defined by standards IEC 364 and DIN VDE 0105, part 1.
Caution: Electromagnetic field
Magnetic fields may affect a cardiac pacemaker. Therefore, persons wearing a cardiac pacemaker are
recommended to keep a distance of at least 25 cm.
Noise emission
The noise level at the place of use depends on the complete line into which the hopper will be incorporated and on the
material to be conveyed. For this reason, sound pressure levels in accordance with the 'Machinery' directive can only
be determined at the place of installation. If the noise level at the place of use exceeds the permissible, sound-
insulating hoods can be installed which we can offer on request.
2.1. Applicable directives and standards
The linear feeder has been manufactured in accordance with the following directives:
•EC Low-Voltage Directive 2006/95/EC
•EMC Directive 2004/108/EC
We assume that our product will be incorporated into a stationary machine.
The applicable standards are specified in the Declaration of Conformity.
3. Design and functional description of linear feeder
Intended use of linear feeders is the feeding of parts. The driving force is provided by an electromagnet. The figure be-
low is a schematic representation of a linear feeder:
The linear feeder belongs to the family of vibratory feeders, but produces a straight-line motion. Electromagnetic oscil-
lations are converted into mechanical vibrations that are used for conveying a material B. When current is applied to
magnet D which is rigidly connected to counter mass F, the magnet exerts a force which attracts and releases arma-
ture E in synchronism with the mains frequency. Within each period of the 50 Hz A.C. mains supply, the magnet will
achieve its maximum power of attraction twice as this force builds up independently of the current flow direction. Ac-
cordingly, the vibration frequency is 100 Hz in this case. If one half-wave is removed, the vibration frequency is 50 Hz.
The vibration frequency of your linear feeder is indicated in the ‘Technical data’ table in Section 1.
A linear feeder is a resonant system (spring-mass system). As a result, its factory set-up will rarely meet your on-site
requirements. Section 5 describes in detail how you can adapt the feeder to your specific requirements.
The linear feeder is controlled by a low-loss electronic control unit. This control unit is not bolted to the linear feeder
but must be installed in the system by user. The controller has a 5-pin connector on its front panel for connection to
the linear feeder.
For assignment of the socket pins refer to the technical data in Section 1.
A Feed rail and vibrat-
ing mass
B Parts handled
C Spring pack
D Driving magnet
E Armature
F Counter mass
G Shock absorber
H Counterweight

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Notice
For comprehensive information on the full range of control devices please refer to the 'Control Units' oper-
ating instructions.
All control devices have two essential operating elements:
•The power switch is used to energize and de-energize the linear feeder.
•A rotary knob (or buttons) can be used to set the feed rate of the system.
Frequency controller
Tuning of the linear feeders can also be done by means of frequency controllers. For detailed description of the tuning
procedure refer to item 5.1.2 of these operating instructions or to the frequency controller operating instructions.
4. Shipment and installation
4.1. Shipment
Notice
Take care that the linear feeder cannot collide with other objects during handling operations.
For the weight of the linear feeder please refer to the table titled 'Technical Data' in Section 1.
4.2. Installation
The linear feeder should be mounted on a stable substructure (available as an accessory) at the point of use. This
substructure must be dimensioned to ensure that no vibrations from the linear feeder can be transmitted. Fix the linear
feeder to the shock absorbers (part G in overview drawing of Section 3) from below. Following drawings show the di-
mensions for linear feeder adaptation.
Make sure that the linear feeder cannot touch other devices during operation. For further details on the control unit
(drilling template, etc.), please refer to the separate operating instructions manual of the controller.
SLC 500 with shock absorbers mounted inside
SLC 500 with shock absorbers mounted outside

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Aluminium section for fastening of rails
5. Commissioning
Attention
Make sure that the machine frame (rack, substructure, etc.) is connected to the protective earth conductor
(PE). Protective earthing has to be provided by user as necessary.
Attention
It is imperative that the vibrating drive be connected to the equipotential bonding system of the overall equipment be-
fore commissioning. The adaptation points are marked with earth symbols.
See also: DIN EU 60204 / VDE 0100-540
Attention
Electrical connection of the linear feeder must be made by trained professional electricians only! When
making any change to the electrical connection make absolutely sure that the 'Control Units' operating in-
structions are duly observed.
Verify that
•the linear feeder is arranged freely without contact to any solid body
•the linear rail is properly aligned and firmly bolted in place
•the linear feeder connecting cable is plugged into the control unit.
•The available electricity supply (frequency, voltage, power) must correspond to the connection data of the con-
trol system (see rating plate on the control unit).
•Plug the cable of the control unit into a power socket and operate the power switch to energize the control
unit.
Notice
For linear feeders that are supplied as a completely set-up system the optimum feed rate has been facto-
ry-set. It is marked with a red arrow on the dial of the rotary knob. In this case set the rotary knob to this
mark.
Optimum tuning is achieved when the desired feed rate is obtained with a controller setting of 80 %. In case of larger
deviations (> +/- 15%) you should re-tune the system.
Linear feeder type
with shock absorbers
mounted inside A / B
with shock absorbers
mounted outside C / D
Spacing for adap-
tation E
SLC 500 - 200
75 / 258
284 / 369
200
SLC 500 - 300
175 / 358
384 / 469
300
SLC 500 - 400
275 / 458
484 / 569
400

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5.1. Tuning
The following graph shows the resonance curve of a linear feeder. This information is fundamental for understanding
the workings of a vibration system which is essentially made up of the vibrating masses, of a spring constant, and of
the resulting resonance frequency. In operation, the driving frequency of the current causes the system to vibrate.
These vibrations propel the parts to be conveyed at the feed rate (A). In the case of a linear feeder, there are four pos-
sibilities to tune the vibration system:
1. Changing the masses of the vibratory unit and the counter mass. This changes the resonance frequency (C)
2. Changing the spring constant by adding or removing springs This changes the resonance frequency (C)
3. The driving frequency can be changed via the frequency controller (point on the curve)
4. Adjustment of spring angle to obtain uniform feeder speed. (see section 5.3)
When changing springs, take into account that leaves of different thicknesses have different spring forces. As the
spring force increases to the square of spring thickness, please note the following examples:
•2.5 mm spring thickness = 6.25 spring force
•3.0 mm spring thickness = 9.0 spring force
•3.5 mm spring thickness = 12.25 spring force
One 3.5-mm thick leaf spring produces approximately the same spring force as two 2.5 mm thick leaf springs. It is al-
ways recommended, therefore, to perform the final adjustment / fine-tuning with thin leaf springs.
Notice
Changing the counter mass or the vibrating mass (by adding or removing counterweights or add-on
weights) will change the conveying speed or the natural frequency, respectively, of the linear feeder. If
necessary, leaf springs must be added or removed.
Optimum tuning is achieved when the desired feed rate is obtained with a controller setting of 80 %. In case of larger
deviations (> +/- 15%) you should re-tune the system.
The feeder sizes come factory-equipped with a spring set designed for a feed rail weight that is approx. 25% lower
than the maximum rail weight specified in the Technical Data (Section 1), and for a feeder speed of approx. 2 - 6
m/min.
If heavier or lighter feed rails are installed, or if much faster or slower feeder speeds are required, it will be necessary
to change either the natural frequency of the vibrating system, or the driving frequency. If you are using a compact
controller without frequency control (using 50 Hz mains power) it is mandatory to tune the system mechanically by
adding or removing springs.
In conjunction with frequency controllers (such as ESR 2000) it is usually possible to dispense with mechanical tuning
by adjusting the driving frequency on the controller.
The fundamentals and procedures of mechanical tuning and of frequency-based tuning are described below.
5.1.1. Mechanical tuning procedure for use with compact controller
If the feed rail assembly or the desired feed rate of a linear feeder deviate significantly from the values stated under
Technical Data, or if no frequency control unit is provided, the vibration system is tuned mechanically.
As a first step it is important to determine the current tuning region of the vibration system: either the natural frequen-
cy is less than 50 Hz or the natural frequency is higher than 50 Hz. To do this, you must determine the feeder
speed (using amplitude stickers) and then remove a counterweight while leaving all other settings/parameters un-
changed. Now you must measure the feeder speed again. The result and the procedure to follow are shown in the ta-
ble below:
Notice
The resonance frequency of the linear feeder must not coincide with the mains frequency (driving frequen-
cy). In most cases, it should be lower than this driving frequency.
A Feed rate
B Desired feeder speed
C Resonance frequency of the system
D Resonance curve
E Spring force (number of springs) increasing

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Mechanical tuning of the feeder speed
Change after removal of
a small counterweight
Location of natural fre-
quency
Feeder speed to be fast-
er
Feeder speed to be
slower
Feeder speed slows down
>50 Hz
'super-critical'
1. Refit the counterweight
2. Remove springs
1. Refit the counterweight
2. Install springs
Feeder speed increases
<50 Hz
'sub-critical'
1. Refit the counterweight
2. Install springs
1. Refit the counterweight
2. Remove springs
Notice
'Super-critical' means that the resonance frequency of the vibrating system is higher than the frequency of
the current driving the system.
'Sub-critical' means that the resonance frequency of the vibrating system is lower than the frequency of the
current driving the system.
Notice
The feeder speeds that can be obtained by tuning the system in the 'super-critical' region are lower than
the speeds possible in the sub-critical region. In addition, the speed differences between loaded and un-
loaded feeder are bigger in this case. 'Sub-critical' tuning should be favoured in most cases.
Notice
As a first step, make a rough adjustment of the feeder speed (by tuning the natural frequency). Then tune
the feeding behaviour of the system. As the last step, fine-tune the feeder speed (natural frequency).
5.1.2. Tuning procedure for use with frequency-controlled control system
Tuning by adjusting the driving frequency is also based on the fundamental principle of the resonance curve described
in Section 5. Following procedure is recommended (for systems without vibration amplitude sensor) in most applica-
tions:
1. Shipping braces 'X' must be removed and all components of the rail assembly must be properly mounted.
2. Set the A value to approx. 60 % as a preliminary guideline. (Current limiter to P90% max. 205V)
3. Set the frequency to 70 Hz and power up.
4. Slowly approach 50 Hz while you continue to monitor/observe the speed all the time.
5. If the magnets hit the armatures you must lower the A value. If very little vibration occurs, increase the A value
and repeat the slow, progressive approach.
6. Find the resonance frequency (biggest vibration amplitude) and note it down.
If the driving frequency deviates by more than +6Hz/-3Hz from the vibration frequency stated in the operating
instructions manual, i.e. 50 Hz, you must install or remove springs.
7. The driving frequency for operation is now set above the determined resonance frequency.
8. Next, the required vibration amplitude (speed) is set via the A value.
The A value setpoint should be between 70% and 80 %.
Notice
For the tuning procedure of a vibrating system with amplitude sensor refer to the operating instructions
for the respective controller.
Notice
Be sure never to operate a 100 Hz linear feeder on 50 Hz. The increased current input to the linear feeder
may destroy the magnet. Linear feeder SLC 500 operates at a frequency of 50 Hz.

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5.2. Changing the spring configuration
Remove the 4 upper lateral spring fastening screws 'D' (M12 x 25 DIN 912). Then disconnect grounding between vi-
bratory unit and counter mass. Now you can lift out the complete vibratory unit, with feed rail attached. Remove the
desired spring pack by loosening the lower lateral spring fastening screws ‘D’ (M12 X 35 DIN 912).
Screw the removed spring pack into the assembly device for a size SLC500-200/300/400 spring set and clamp the as-
sembly device into a vise. When adding and removing leaf springs, note that spacers must be inserted between the
springs.
Mutual alignment of the two spring seats is provided by the assembly device. The spring fastening screws 'C' must be
tightened to a torque of 30 Nm.
Refit the complete spring pack and take care to ensure that the longer screw (M12 x 35) is in the bottom position.
In order to restore the prior alignment of the linear feeder, adjust the alignment hole relative to the vibratory unit at the
upper counter mass end (‘E’) with the aid of a pin (8 mm diameter, minimum length 300/400/500 mm).
On the run-in side, adjust the vibratory unit by inserting another pin (8 mm diameter, minimum length 300/400/500
mm) into the alignment hole (‘I’) near the counterweight.
Following adjustment of the desired spring angle, you can re-tighten the lateral spring fastening screws 'D' to a torque
of 80 Nm.
Now the vibratory unit is aligned to the counter mass and the locating pins can be removed.
Remember to check the coil cap 'H' and adjust it as necessary before re-starting the unit. Chapter 5.5
Notice
If the linear feeder mounting plate is designed so that crossbars are situated local to the feet, it is possible
to dismount the spring packs one by one from below without removing the feeder mass (moving mass).
Attention:
Before re-starting the unit it is mandatory to re-establish protective grounding between vibratory mass and
counter mass.

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5.3. Adjusting the desired feeding behaviour / synchronism of the linear feed rail
For a linear feed rail to operate smoothly and in synchronism, the spring angle must be set to be identical to the cen-
tre-of-gravity angle. The centre-of-gravity angle is determined by the locations of the centres of gravity of the vibrating
mass and of the counter mass.
Example based on a centre-of-gravity angle of 12.5 deg.
Spring angle equal to centre-of-gravity angle
The spring force is directed to attack exactly at the vibratory unit's centre of gravity. Result: the height amplitude is
equal on the run-in and run-out sides.
Spring angle larger than centre-of-gravity angle
The spring force is directed to attack ahead of the vibratory unit's centre of gravity. Result: the height amplitude on the
run-in side is greater than on the run-out side.
Spring angle smaller than centre-of-gravity angle
The spring force is directed to attack behind the vibratory unit's centre of gravity. Result: the height amplitude on the
run-in side is smaller than on the run-out side.
If the two angles are not identical, the feed rail will not run smoothly. As a rule, all spring packs are to be adjusted at
the same spring angle.
You can adjust the centres of gravity or spring angles, respectively, by the following means:
•Adding or removing counterweight 'H' (the mass point of the counter mass moves toward the front or rear)
•Selecting the rail height and track position so as to ensure that the mass point of the vibrating mass is consid-
erably behind that of the counter mass (seen in feeding direction)
•Minimizing the rail weight as much as possible to move the mass point of the vibratory unit as much down-
wards as possible.
•Adjusting the spring angle to the angle of the mass points.

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5.4. Spring angle adjustment
Fix the vibratory unit relative to the counter mass using Ø 8mm pins (see section 5.2 ‘Changing the spring set’). You
can then loosen the four lateral spring fastening screws 'C' so that you can swing the spring pack to the desired spring
angle. Finally re-tighten the spring fastening screws to the specified tightening torque (see Section 1, ‘Technical Data’)
and remove the locking pins.
5.5. Adjusting the magnet air gap
The factory setting of the air gap between armature and magnet is indicated in the ‘Technical data’
(Section 1).
Adjustment of this air gap can be performed from the outside without dismounting any components. Slightly slacken
the two exterior armature fastening screws 'A' (M6 DIN 912). Insert distance gauge into the two holes in the vibratory
unit's supporting member 'H'. Adjust the air gap (see section 1, ‘Technical data’) by pressing down the two armature
fastening screws against the direction of travel, then tightening them. (This must be done for both coils.) After that, re-
move the gauge. If you have no gauge on hand, you can adjust the air gap to its specified value from below using a
feeler gauge or shims (if necessary, remove the entire linear feeder from its substructure or machine table).
Notice
If the rotary knob on the controller is set to 100% and the air gap correctly set, the magnet must not hit the
armature upon power-on. If it does, proceed as described under section 5.2. (re-tune the drive and reduce
the speed setting)
Objective of the tuning procedure:
When the desired feeding speed is obtained at a controller setting of 80%, it must increase when a weighting plate is
removed. ('sub-critical')
Notice
Make sure that the number of springs per spring pack will not deviate by more than 1-2 springs.
6. Feed rail design rules
As the use of aluminium profiles makes the vibratory unit strong enough, the feed rails should be of very lightweight
design. Only the rail projections beyond the vibratory unit (max. 100 mm at the entry and max. 500 mm at the exit)
must be designed to resist torsional stresses involved. In order to obtain additional resistance to lateral torsion, a one-
piece support plate of 12 mm thick aluminium should be bolted onto the linear feeder profiles.
The higher the feeding speed the higher the clearance should be made between top of product and bottom of feed rail
cover. This clearance should be set to the largest acceptable value. When mounting the feed rail observe the follow-
ing:
•Mount it closely above the top of the vibratory unit.
•Locale as precisely as possible on the aluminium profile center.
•Use stable rigid screws (M6 as a minimum).
•In order to obtain a higher feeding speed the linear feeder can be installed with a slight inclination in feeding
direction /about 3 to 5 degrees).
•Never use any loose or hinged covers not firmly bolted in place.
The feed rail may be made up of several short sections to be joined and screwed in place on the vibratory unit. At the
entry, flat chamfers assist product transfer from one feed rail section to another.
The split design of several sections is recommended especially for hardened or case-hardened rails (made for low dis-
tortion).
Lightweighting of feed rails can be realized by using aluminium strips or profiles. The required wear resistance can
then be obtained by segments of hardened spring steel strip bolted in or on. Such segments are available from the
manufacturer on request.

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7. Maintenance
Linear feeders basically require no maintenance. They should be cleaned when soiled or after coming into contact with
liquids.
•Before starting such work be sure to pull the mains plug.
•Clean the inside of the linear feeder (dismount components as necessary), and in particular the air gap be-
tween coil and armature.
•After remounting the components and plugging in the mains plug the linear feeder is again ready for operation.
8. Spare parts and customer service
For efficient work on the linear feeders several tools are required, among others the spring stacking device, the locking
pins and the coil gap gauge.
As the linear feeder is designed for a long service life, spare parts are not required frequently.
Should a defect occur nonetheless, it mostly concerns the rubber buffers or magnets.
When ordering new parts, please specify the device type (see rating plate), the spare part designation (with article
code if available) and the quantity required.
For a list of Service Center addresses refer to the back cover page of this manual.
9. What if... (Advice on troubleshooting)
Attention
Only professional electricians are allowed to open the control unit or connector. Pull the mains plug before
opening!
If the rail feeding speed or height amplitude is not uniform but rather higher at the exit than at the entry, this indicates
that the spring angle is incorrectly set relative to the centre-of-gravity angle (see Section 5. In this case proceed as fol-
lows:
•Increase the spring angle on all spring packs.
•Increase counterweight 'F' by attaching additional plates.
If the rail feeding speed or height amplitude is not uniform but rather higher at the entry than at the exit, this indicates
that the spring angle is incorrectly set relative to the center-of-gravity angle (see Section 5.). In this case proceed as
follows:
•Decrease the spring angle on all spring packs.
•Reduce counterweight 'F' by removing small weights.
If the rail speed is uniform but the running behaviour is instable and the product jumps too much between rail contact
surface and top cover, this indicates that the centre-of-gravity angle and the set spring angle of the overall system and
thus the height amplitude is too large. In this case proceed as follows:
•Change the centre-of-gravity angle (more 'flat') by shifting the counterweight 'F' against the feeding direction,
attaching additional weighting plates to the counterweight, installing the additional weight into the vibratory unit
supporting member and making the feed rail lighter, if necessary.
•Adjust the spring angle to match the new centre-of-gravity angle.
If despite uniform height amplitude the running behaviour is unstable, especially with product having a large contact
area or oil-contaminated parts, this indicates that the centre-of-gravity angle and the set spring angle of the entire sys-
tem is too small. The height amplitude is too small. This prevents the throwing motion and in case of oily product the
adhesive force is higher than the throwing force, i.e. the product cannot take off. In this case proceed as follows:
•Change the centre-of-gravity angle (more 'steep') by shifting the counterweight 'F' in feeding direction, remov-
ing weighting plates from the counterweight and removing the additional weight from the vibratory unit sup-
porting member.
•Adjust the spring angle to match the new centre-of-gravity angle.

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If it is impossible to set-up the feed rail properly by following the above procedures and if lateral oscillation occurs or
'dead spots' are found in certain areas, then the stiffness of the rail is insufficient. The abutment joints move relative to
one another or non-symmetric rail sections lead to non-uniform running behaviour. In this case proceed as follows:
•Fit additional reinforcing ribs and screw abutment joints together.
•Counter-balance non-symmetric sections by weights or replace by material lighter in weight.
Fault
Potential cause
Remedy
Linear feeder does
not start on power
up
Power switch off
Mains connector of control unit not plugged-in
Connecting cabled between linear feeder and
control unit not plugged-in
Defective fuse in control unit
Close power switch
Plug in the mains connector
Plug 5-pin connector into control unit
Replace fuse
Only slight feeder
vibration
Rotary knob on controller set at 0 %
Shipping locks or braces not removed
Wrong vibration frequency
Set controller to 80 %
Remove shipping locks or braces.
Check that coding in plug connector of the
linear feeder is correct (see rating plate
and 'Technical Data' (Section 1))
The linear feeder no
longer meets the re-
quired feed rate af-
ter prolonged opera-
tion.
Fixing screws of linear rail have come loose.
Screws of one or more spring packs have
come loose.
Misadjusted coil-to-armature gap
Vibratory unit displaced towards the counter
mass
Re-tighten the screws
Tighten screws (for tightening torques see
'Technical Data' in Section 1).
Readjust the air gap (for gap size see
'Technical data' in Section 1).
Re-adjust the vibratory unit (see Section
5).
Linear feeder makes
loud noises
Foreign matter in air gap
Stop linear feeder and remove foreign mat-
ter. Then check the coil-to-armature gap.
Linear feeder cannot
be tuned to a per-
manently constant
feeding speed.
The spring constant of the vibrating system has
changed. The linear feeder operates close to
the resonance point.
Re-tune the linear feeder. Remove springs.
See Section 5: Tuning

RNA Group
Headquarters
Manufacturing and Sales
Rhein-Nadel Automation GmbH
Reichsweg 19-23
D-52068 Aachen
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
www.RNA.de
Further RNA group companies:
Manufacturing and Sales
Focus: Pharmaceutical Industry
PSA Zuführtechnik GmbH
Dr.-Jakob-Berlinger-Weg 1
D-74523 Schwäbisch Hall
Phone: [phone]
Fax: [phone]
E-Mail: [email protected]
www.psa-zt.de
Manufacturing and Sales
RNA Automation Ltd.
Unit C
Castle Bromwich Business Park
Tameside Drive
Birmingham B35 7AG
United Kingdom
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
www.rnaautomation.com
Manufacturing and Sales
HSH Handling Systems AG
Wangenstr. 96
CH-3360 Herzogenbuchsee
Switzerland
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
www.handling-systems.ch
Manufacturing and Sales
Pol. Ind. Famades c/Energia 23
E-08940 Cornella de Llobregat (Barcelona)
Spain
Phone: [phone]
Fax::[phone]
E-Mail: [e-mail]
www.vibrant-RNA.com
www.vibrant.es
Further manufacturing sites
of the RNA Group
Manufacturing
Lüdenscheid branch
Rhein-Nadel Automation GmbH
Nottebohmstraße 57
D-58511 Lüdenscheid
Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]
Manufacturing
Ergolding branch
Rhein-Nadel Automation GmbH
Ahornstraße 122
D-84030 Ergolding
Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]
Manufacturing
Remchingen branch
Rhein-Nadel Automation GmbH
Im Hölderle 3
D –75196 Remchingen-Wilferdingen
Phone: [phone]
E-mail: [e-mail]