Eriez 46C Manual

VIBRATORY FEEDER
Installation, Operation
and Maintenance
Instructions
ERIEZ WORLD HEADQUARTERS: 2200 ASBURY ROAD, ERIE, PA 16506–1402 U.S.A.
WORLD AUTHORITY IN SEPARATION TECHNOLOGIES
VM-3158I
vibratory
feeder
models – 46C,
56C & 66C

2
Introduction
This manual details the proper steps for installing, operating and
maintaining the Eriez Vibratory Feeder.
Careful attention to these requirements will assure the most
efficient and dependable performance of this equipment.
If there are any questions or comments about the manual,
please call Eriez at 814/835-6000 for Vibratory Feeder assistance.
CAUTION
Safety labels must be affixed to this product. Should
the safety label(s) be damaged, dislodged or removed,
contact Eriez for replacement.
©2019 ERIEZ MAGNETICS ALL RIGHTS RESERVED

VIBRATORY FEEDER
3
Table of Contents
VIBRATORY FEEDER - MODELS 46C, 56C & 66C
USER TECHNICAL SAFETY INFORMATION....................................................... 4
INSTALLATION ..................................................................................................... 5
Mounting.......................................................................................................... 5
Electrical Connections ..................................................................................... 5
OPERATION AND MAINTENANCE ...................................................................... 6
Tuning Guide ................................................................................................... 6
How To Measure Displacement....................................................................... 6
Tuning for Non-Standard Trays ....................................................................... 7
Tuning for Different Conditions of Tray Loading .............................................. 7
REPAIRS ............................................................................................................... 8
Coil Replacement ............................................................................................ 8
Spring Change or Replacement ...................................................................... 9
Armature Replacement.................................................................................. 10
The Hi-Vi Magnetic Drive Circuit.................................................................... 11
TROUBLESHOOTING ........................................................................................ 12
DECLARATION OF CONFORMITY .................................................................... 14

4
User Technical
Safety Information
The following instructions are provided for the
personal safety of operators and also for the protection
of the described product and connected equipment.
Also refer to the IOM for the CE approved feeder
control for additional safety information
• Eriezhasappliedduediligencetoensurethatour
drives, feeders and feeder systems are CE
compliant. When part of the feeder system is
purchased from Eriez, the customer must select
components that make the feeder system (drive(s)
+ tray + control) CE compliant.
• Thedrivers,feedersandcontrolsareNOT
approved for operation in hazardous locations.
• Equipmentistobeassembledandinstalled
according to the IOM and local electrical/safety
codes by qualified personnel.
• Isolatethemainsbeforeinstalling,dismantling
or repairing the equipment, as well as for fuse
changes or post installation modifications.
• Donotoperatetheequipmentifthefeederpower
cable or control power cable is damaged.
• Allelectricalconnectionsmustbecovered.
• Allearth(ground)connectionsmustbechecked
for correct function after installation.
• Equipmentistobeoperatedbytechnically
qualified personnel.
• Personnelaretomaintainasafedistancefromthe
equipment during operation. Do NOT stand, sit or
lay on the vibratory feeders during operation.
• Safetydevices/relaysmustbeinstalledbythe
end user to ensure that the feeder does not start
prematurely if power to the control is interrupted
and restored.
• Theenduserofthefeedermustdetermine
if hearing protection is required for their feeder
application.
• Theenduserbearsresponsibilitytospecifyan
enclosed tray for dusty product where a potential
health hazard is present.
• Eriezdriversproduceaweakmagneticeld
during operation. The end user bears the
responsibility to assess if this magnetic field
will affect employees with medical devices,
and provide adequate warning regarding this
potential risk.
• Thesurfaceofthedriverelectricalassembly
may exceed 149°F depending upon tuning
requirements. Do not contact this surface until
sufficient time (30 minutes) is provided after
shutdown for this surface to cool.
• Certainproducts(plastics,forexample)can
create a static charge as it is introduced, conveyed
and removed from vibratory feeder trays. The
end user must assess if this static charge presents
a health or a safety hazard. Eriez can supply trays
with Earth grounding devices upon request.

VIBRATORY FEEDER
5
Installation
Mounting
This Hi-Vi model should be mounted on a flat surface,
fastened with bolts of proper size. Use lock washers
under the bolt heads.
FIGURE 1
Model 46C
Electrical Connections
NOTE: The Eriez Vibratory Feeder is designed to be
operated from an AC source. It cannot be operated
from a DC source.
All wiring should conform to all applicable electrical
codes.
1. Check the specifications of the power line to be
certain that they are the same as those shown
on the nameplate.
2. Connect the black and white wires in the Feeder
power cord to the power source or to the proper
terminals in the control box.
3. Connect the green wire to the ground or to the
lug provided in the control box.
4. If using a control box, make all connections
as indicated on the control wiring diagram.
5. Connect the ground lug in the control box to a
good earth ground (a cold water line is excellent).
6. On multiple drive feeders (two or more drives
on one tray) all drives should be wired electrically
in phase and in parallel. The black wires from
each power cord should be connected together
and the white wires connected together. The black
wires should be connected to the line side of the
input voltage and the white wires should be
connected to the neutral side.
YOU ARE NOW READY TO START YOUR
VIBRATORY FEEDER.

6
Do not operate the unit with associated equipment
touching any part of the unit.
To start the feeder after all connections have been
made, apply power to the line connected to the
feeder. If a controller is used, operate the switch
on the controller and adjust the output voltage to
maximum by rotating the control knob to the full
clockwise position. Ordinarily (at ordinary room
temperatures) the unit will take about two minutes
to reach full steady-state displacement.
After full steady-state displacement has been
attained, use the controller to adjust the unit to the
desired feed rate.
No routine maintenance or lubrication is required,
except that any accumulation of foreign matter should
be periodically removed from between the tray-tiebar
assembly and the body, and from between the body
and the mounting surface, to prevent restriction of
movement of the vibratory elements.
IMPORTANT NOTE:
Special Trays and Attachments
Eriez engineering service should always be consulted
before undertaking the design or construction of
special trays. Standard or special trays as furnished
by Eriez should not be modified or attachments made
without first contacting Eriez. To do so will void the
warranty. (See Standard Tray Specifications.)
Tuning Guide
General Information
The tuning means is provided solely for the purpose
of mechanically tuning the unit, with its tray, to the
desired vibratory displacement at full voltage. When a
unit is furnished complete with tray, it is properly tuned
to the tray at the factory. Such tuning is naturally
somewhat different for trays of different size or weight.
Tuning is accomplished by changing the stiffness of
the tuning spring stacks of the feeder (see Figure 2).
Variations in stiffness are obtained by changing the
number of springs in the stacks and/or by changing
the thickness of fiberglass springs.
Operation & Maintenance
In normal operation at full voltage, the total
displacement for standard size trays, measured at the
back of the tray, is .055" to .060" (1.4 mm to 1.5 mm).
For trays substantially larger than standard this normal
displacement range should be reduced. Refer to the
serial number plate on your feeder for the amplitude
to which your unit was tuned.
How to Measure Displacement
Position an Eriez displacement sticker on the outer
side of the tray, near the rear of the tray and at an
angle of 25° from vertical (see Figure 3).
TIE BAR REAR TUNING
SPRING STACK
FIGURE 2
FIGURE 3
Stroke gauge under vibration
(shown at .060" displacement)

VIBRATORY FEEDER
7
With unit operating at full voltage and tray empty,
observe where the fine gray lines on the displacement
sticker meet. This point will be higher or lower as the
displacement changes. Opposite the point where they
meet, read amount of displacement.
The following general rules, which apply only to the
feeder operating ideally on the “normal” side of its
“tuning curve,” should be borne in mind when making
tuning adjustments to increase or decrease the
displacement:
1. To DECREASE the tray displacement, INCREASE
the stiffness of the tuning springs.
2. To INCREASE the tray displacement, DECREASE
the stiffness of the tuning springs.
If decreasing or increasing the tuning spring stiffness
has an opposite effect, it means that the spring
stiffness is not great enough, and that the unit is
operating on the “opposite” side of its tuning curve.
The spring stiffness should be increased until the
behavior is in accordance with rules 1 and 2. The
unit can then be properly tuned to the desired
displacement.
As a guide to the stiffness of individual tuning springs,
each spring is marked with a code number- example,
5-27. The first number (5) is the number of fiberglass
plies in the spring. The following number (27) indicates
the relative stiffness of the spring; the higher this
number the stiffer the spring.
The total stiffness of the tuning spring stack is the
sum of the relative stiffness numbers. By various
combinations of different ply springs having different
relative stiffnesses, practically any desired total
stiffness can be obtained.
Operation & Maintenance
(cont.)
Tuning For Non-Standard Trays
(Note: See “Special Trays and Attachments”)
If it is necessary to tune the unit to an off-size or
non-standard tray, follow this procedure:
1. Attach the tray, making sure that all lockwashers
are in place and the fasteners tight.
2. Energize the unit at the nameplate voltage
and frequency.
3. (a) During tuning, if a hammering or striking
noise appears during warm-ups or if such a noise
occurs when the unit is turned off and on quickly,
the displacement is well in excess of normal.
Whether striking or not, if the displacement
exceeds the normal range for that particular size
of tray (see Tuning Guide-General Information),
it must be reduced by substituting a tuning spring
of greater stiffness, or by changing one or more
springs, until approximately normal displacement
is attained at full voltage. Then use the controller
for fine or variable control of displacement and
feed rate.
(b) If the displacement at full voltage after
warmup is below the nominal range for that
particular size tray, and greater displacement
is desired, decrease the tuning spring stiffness
by substituting leaves of lesser stiffness or by
subtracting more leaves.
Tuning For Different Conditions
of Tray Loading
Units with Eriez-built trays are factory tuned for normal
displacement (approximately .055" to .060" [1.4 mm
to 1.5 mm]) with light loading (light head load, light
materials, limited depth of flow of heavier materials).
Ordinarily this tuning will not need to be changed. In
no case should the unit be permitted to deflect more
than .060" (1.5 mm) without load.
CAUTION: A small amount of striking during
tuning is permissible, but must not be allowed
during regular operation since damage to the
feeder can result.

8
Coil Replacement
Refer to Figs. 4, 5, 6 & 7.
The following procedure should be followed in
removing and replacing the electrical assembly,
which includes the coil:
1. Remove both nameplates and insert the gap
spacers (furnished with the unit) between the
E-frame center leg and the two armature pole
pieces (see Figure 4 & 5).
Repairs
2. Remove, in order, the bolts securing the upper
end of the rear tuning spring stack to the tiebar.
Lift the tray-tiebar-lever assembly away from the
body housing (see Figure 6).
3. Remove the bolts securing the electrical assembly
to the body housing and lift the assembly out of
the body housing (see Figure 7).
FIGURE 4
FIGURE 5
GAP
SPACER
AIR GAPS - ADJUST TO .056" (1.4 MM)
AIR GAP - ADJUST TO .100"
FIGURE 6
REAR SPRING
STACK
TIE BAR
FRONT TUNING
SPRING STACK
E-FRAME
FIGURE 7
BODY HOUSING
ELECTRICAL
ASSEMBLY
COIL
SPRING BAR
DIAPHRAGM
4. If the coil is defective, the entire E-frame assembly
including the coil must be replaced (order from
Eriez parts list).

VIBRATORY FEEDER
9
5. In reassembling the unit, first center the armature
at the bottom of the body cavity; then insert the
E-frame into the body cavity, making sure that the
center leg enters the space between the armature
pole pieces. Insert the bolts securing the electrical
assembly and fasten only finger tight.
6. Place the tray-tiebar-lever assembly into its
original position and replace, in order, the bolts
securing (a) the lower end of the tiebar to the
spring bar, and (b) the upper end of the rear
tuning spring stack to the tiebar. Make sure that
all tuning spring spacers are in place and that
all bolts are tight.
7. Loosen the electrical assembly bolts slightly
and roughly center the E-frame center leg
between the pole pieces. Insert the spacer
between the E-frame center leg and the pole
pieces and adjust the electrical assembly forward
or backward until the spacer moves freely in
the gaps. Tighten the electrical assembly plate
and replace the nameplates.
Spring Change Or Replacement
Refer to Figs. 8 & 9.
Although the non-metallic springs used in the Feeder
have outstanding life characteristics, failure may
eventually occur, especially if the displacement is
greater than normal. The symptoms of such failure
will be:
1. Erratic behavior of the unit, or
2. Greatly reduced displacement.
If spring failure is suspected, the rear tuning spring
stack should be removed after first inserting the two
gap spacers between the center leg of the E-frame
and the two pole pieces (Figure 8). The purpose of
this is to hold the tiebar or tray-tiebar assembly in
position while the tuning springs are removed.
If after inspection of the rear tuning spring stack,
the front stack is suspected, use the ARMATURE
REPLACEMENT procedure as a guide for
re-assembly with special attention to the washer
shaped spacers between the spring bar and
armature.
Carefully examine each tuning spring for signs of
delamination or breakage, especially in the area
next to the spring spacer. A failed spring can be
recognized by the appearance of the spring surface.
If this surface is discolored or has a patchy whitish
appearance, perhaps accompanied by surface
burying or other irregularity, the spring is defective
and should be replaced with a new spring ordered
from the parts list.
CAUTION: Make sure that all of the fasteners
in the assembly are tight at all times. Periodic
checks for tightness should be made to insure
against possible malfunction or damage due
to loose parts.
Note: The front spring stack always remains the
same on the feeder and should not be altered
when returning the unit. The following applies:
REAR TUNING
SPRING STACK
GAP SPACER
FIGURE 8
MODEL STANDARD REAR SPRING COMBINATION
50 Hz 60 Hz
46 3-17 ply, 1-5 ply 2-19 ply, 3-15 ply
56 3-15 ply, 2-13 ply 4-19 ply
66 2-19 ply, 2-17 ply 4-19 ply,1-15 ply
MODEL STANDARD FRONT SPRING COMBINATION
50 Hz 60 Hz
46 (3) 13 ply (3) 15 ply
56 (4) 17 ply (4) 17 ply
66 (4) 17 ply (4) 19 ply

10
Feeder Drive Only (Less Tray Supplied)
If a feeder is shipped without a tray, the standard
rear spring combination for the feeder is listed below.
These feeders will need to be tuned to the tray.
Refer to TUNING FOR NON-STANDARD TRAY
section
Note: The front spring stack always remains the same
on the feeder and should not be altered when retuning
the unit. The following applies:
Repairs (cont.)
TABLE 1. TORQUE CHART
46 & 56 Series
Part Bolt Torque
Size m-kgs ft-lbs
Rear Spring Bolts M14-2 11.8 85.3
Front Tie Bar Bolts M14-2 11.8 85.3
Front Spring Bolt M14-2 11.8 85.3
Electrical Ass’y Bolts M8-1.25 2.4 17.4
Tray Bolts M8-1.25 3.0 22
66 Series
Part Bolt Torque
Size m-kgs ft-lbs
Rear Spring Bolts M16-2 15.2 109.9
Front Tie Bar Bolts M16-2 15.2 109.9
Front Spring Bolt M16-2 11.8 109.9
Electrical Ass’y Bolts M8-1.25 2.4 17.4
Tray Nut M12-1.75 7 50.6
FRONT SPRING COMBINATIONS
50 Hz 60 Hz
1-9 ply 1-13 ply
STANDARD REAR SPRING COMBINATIONS
50 Hz 60 Hz
1-11 ply 2-9 ply
1-9 ply 1-7 ply
1-7 ply 1-7 ply
1-9 ply 1-5 ply
Armature Replacement
Refer to Figs. 4, 5, 6 & 7.
Prolonged striking may damage the armature to an
extent that it will have to be replaced. If this should
become necessary, order a new armature from the
parts list and begin by following the same instructions
as for coil replacement.
1. Continue by removing in order the bolts
securing the elastomer diaphragm clamp to
the body housing.
2. Loosen slightly but do not remove the upper end
of the front tuning spring stacks to the spring bar
and the spring bar to the armature.
3. Loosen the bolts securing the lower end of the
spring stacks to the body housing leaving 1-2
threads in the body housing. Carefully slide the
spring stack and the armature assembly back
to the bolt heads and remove the bolts from the
body housing. (Do not remove bolts from the
spring stacks).
4. Remove the armature and spring stack assembly
by grasping the spring stacks and sliding it through
the opening in the body housing. NOTE: use a
downward pressure when removing this assembly
to keep the magnetic poles of the armature from
coming in contact with the body housing when
going throught the opening.
5. Stand the armature and spring stack assembly
on a non-magnetic surface (I.E. wooden table) as
shown in Figure 9. NOTE: Keep armature away
from any steel parts and surfaces.
6. Loosen the bolts securing the spring stacks
to the armature and remove the spring stacks
with the bolts intact. Retain the washer shaped
spacers located between spring bar and armature.
Note the position of the elastomer diaphragm
when reassembling.
7. Center washer shaped spacers on tapped holes
of the armature. (Hint: using an instant adhesive
will keep the washers and elastomer diaphragm
in position while reassembling.) Position elastomer
diaphragm on the armature as shown in Figure 10.
Reverse the above procedure to reassemble
the unit.
FIGURE 9 FIGURE 10

VIBRATORY FEEDER
11
Repairs (cont.)
The Hi-Vi Magnetic Drive Circuit
Old-style electromagnetic equipment has an inefficient
attract-release type operation, where a mass mounted
on springs is attracted by a DC electromagnet and
returned to its original position solely by the springs.
The new Hi-Vi method incorporates a lifetime
permanent ceramic magnet and is operated directly
from an alternating current line.
In the Hi-Vi method, the spring-mounted mass is
alternately both attracted and repelled by an AC
electromagnet assisted by the springs.
Intermeshing a fixed polarity permanent magnet with
an alternating polarity AC electromagnet eliminates
the rectifier since you would have an alternating
attracting and repelling force as the polarity of the
electromagnet alternated.
It will be noted that the pole pieces of the permanent
magnet are intermeshed in the air gaps of an
electromagnet. The polarity of the permanent magnet
is fixed; the polarity of the electromagnet alternates at
the line frequency. We have shown the polarity of the
electromagnet as it would exist on one side of the sine
wave. Note that both poles of the permanent magnet
are being attracted toward the unlike electromagnet
poles. They are also being repelled in the same
direction by the like electromagnet poles. This results
in four forces accumulating to drive the armature
in the same direction. It also results in closing the
magnetic circuit through the electromagnet providing a
magnetizing effect on the permanent magnet on each
side of the sine wave. The demagnetizing force is very
minor for the attracting force and the magnetic lines of
flux would much prefer to be attracted than repelled.
This always tends to place the permanent magnet
in a magnetizing circuit regardless of where the AC
current is on the sine wave. As the polarity of the
electromagnet changes, all of the forces are reversed
and the permanent magnet armature is driven in the
opposite direction.
CAUTION: Operation from portable engine driven
power plants.
Varying and unstable line frequency has a diverse
effect on vibratory feeders because they are tuned
mechanical devices, designed around either 50 or 60
cycle operating frequency. Shifts in the operating point
due to changes in frequency (+ or -1 cycle) cause
higher than normal spring stress, striking and high line
currents which can cause drive and tray failure. When
operating from portable engine-driven power plants,
be certain that the engine is up to speed and all other
loads are started and at running speed before starting
the electromagnet feeder.
The feeder should always be stopped first when the
engine-driven power plant is shut down.
8. Insert armature and diaphram assembly through
opening in front of base casting as shown in
Figure 11.
FIGURE 11
9. Final assembly as follows:
 • CheckthattheelectricalE-frameandarmature
assemblies are positioned with gap bars
provided. (Hand tight).
 • Attachthetiebartotherearofthebody
housing using the existing rear tuning spring
stack, and bolts. (Tighten).
 • Connectthetiebartothefrontofthespringbar.
(Torque - see Table 1).
 • Checkclearances.(Gapbars).
 • Tightenfrontspringstack.(Torque-seeTable1).
 • Tightenrearspringstack.(Torque-seeTable1).
 • TightenelectricalE-frameassembly.(Torque-
see Table 1).
 • Checkallfasteners.(Checktorque-seeTable1).
FIGURE 12
NS NNS
AC
POWER
SUPPLY
POTENTIOMETER
ELECTRO-MAGNET
ARMATURE CONNECTED
TO SPRINGS AND
MOVING MASS
PERMANENT
MAGNET

12
Troubleshooting
Troubleshooting
Reduced or Low 1 2 3 5 6 7 8 9 12 13 14 16 19
Output
Noisy but Output
3 8 9 10 11 12 13 19
Okay
Noisy Certain
13 14 19
Periods Only
Completely 2 4 5 7 9 13 15 16
Inoperative
Operating But 2 3 5 6 7 8 9 10 12 13 14 16 19
Reduced Output
Output Okay
7 8 9 10 13 14 19
Too Much Noise
Gradual
Fading 25 7 8 10 16 19
Excessive
18
Tray Wear
Turbulent 9 10 14 17
Flow
Inconsistent 2 3 5 6 7 8 9 10 12 13 14 16 19
Output
Develop After Satisfactory Initial
Initial Operation Installation
Misapplication Tampering or Changing of Base or Tray Loose Spring Clamp or Tray Mounting Bolts Coil Failure Control Failure Incorrect Voltage Spring Failure Foreign Material Between Tray & Reaction Mass Incorrect Tuning Poor or Broken Weld on Tray Incorrect Factory Adjustment Sympathetic Vibration in Other Equipment In Contact with Other Equipment Line Voltage or Hz Variation Blown Fuse or Circuit Breaker Other Electrical Connections Shockmount Deterioration Corrosive or Abrasive Material Product Variation or Product Sticking to Tray
NATURE OF
PROBLEM
TABLE 2. SERVICE CHART

VIBRATORY FEEDER
13
Troubleshooting (cont.)
Refer To Table 2. Service Chart
1. Misapplication
Feeder too small. Product difficult or
impossible to handle. Impossible temperatures
or atmospheres. Impossible dimensional
requirements. Feeding requirements too
precise or excessive. Consult Eriez.
2. Tampering or Changing of Base or Tray
Improper disassembly, extensions, covers,
weights, screens or other modifications or
attachments may have affected performance.
Reassemble in accordance with printed
instructions or consult Eriez.
3.
Loose Spring Clamp or Tray Mounting Bolts
Tighten all bolts.
4. Coil Failure
Replace coil or coil and “E” frame assembly.
Order from Eriez parts lists. Follow
maintenance instructions carefully.
5. Control Failure (if applicable)
Check control for proper wiring and function.
Inspect for defective components.
6. Incorrect voltage
7. Spring Failure
See maintenance instructions. Disassemble
for examination. Tuning spring failure will also
show up as white areas. Order new parts from
factory and replace per instructions.
8. Foreign Material
Examine and remove foreign material.
9. Incorrect Tuning
See maintenance instructions. To increase
displacement and output, use fewer or thinner
tuning springs. To decrease displacement and
eliminate striking, use more or thicker tuning
springs.
10. Poor or Broken Weld on Tray
Check and correct.
11. Incorrect Factory Adjustment
See maintenance instructions (Gap
adjustments.)
12. Sympathetic Vibration in Other Equipment
Check and correct.
13. Contact with Other Equipment
Check and correct.
14. Line Voltage or Hz Variation
Check and install voltage regulator if
necessary. Check and install Hz regulator.
15. Blown Fuse or Circuit Breaker
Check for short circuits and correct.
16. Other Electrical Connections
Check all connections and correct.
17. Shockmount Deterioration
Check and correct.
18. Corrosive or Abrasive Material
May require special tray. Consult Eriez.
19. Product Variation or Product Sticking
to Tray
If product density, moisture content or other
characteristics vary, customer should take own
corrective measures, such as cleaning tray
surface periodically.

14
Eriez Manufacturing declares that the Electromagnetic
Vibratory drives conform to the following:
EN 60204-1 in accordance with the Low Voltage Directive
(73/23/EEC).
Eriez Manufacturing declares that the Electromagentic
Feeders (vibratory drives with trays) conform to the
following:
EN 60204-1 in accordance with the Low Voltage Directive
(73/23/EEC).
EN ISO 12100-1, BS EN ISO 12100-2, and EN 1050 in
accordance with the Machinery Directive (98/37/EC).
Eriez Manufacturing declares that the Electromagnetic
Feeder System (vibratory drives with trays and controls)
conform to the following:
EN 60204-1 in accordance with the Low Voltage Directive
(73/23/EEC).
EN ISO 12100-1, BS EN ISO 12100-2, and EN 1050 in
accordance with the Machinery Directive (98/37/EC).
EN 61000-6-4 and EN 61000-6-2 in accordance with the
Electromagnetic Compatibility Directive (89/336/EEC).
Declaration of Conformity

VIBRATORY FEEDER
15

16
Note: Some safety warning labels or guarding may have been removed before photographing this equipment.
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