NetterVibration NEG Series User manual

Operating instructions for
high frequency electric external
vibrators
Series NEG/NEH
August 2022
No. 1993E
Page 1/31
These operating instructions apply to:
NEG 100770
NEG 1001000
NEG 1001090
NEG 1001140
NEG 1001400
NEG 1001540
NEG 1001800
NEG 1002020
NEG 1002500 LR
NEG 1003300 LR
NEH 100600
NEH 1001140
NEH 1001540
NEH 1002020
NEH 1002000 HD

2
Contents
1General information 3
2Safety 6
3Technical data 9
4Design and function 11
5Transport and storage 12
6Installation 13
7Start-up and operation 17
8Maintenance and servicing 22
9Troubleshooting 27
10 Spare parts and accessories 29
11 Disposal 30
12 Annex 31
Please refer to the delivery note for the scope of delivery.
Check the packaging for possible transport damage. In the event of
damage to the packaging, check the contents for completeness and
possible damage. Inform the carrier in the case of damage.
The high frequency electric external vibrators of the series NEG and
NEH are hereafter referred to as "NEG/NEH".
Document no.
1993E
Version no.
1
Date of issue
August 2022
Scope of
delivery
Designation
Version of
document

General information
3
1 General information
Before installing the NEG/NEH read these instructions carefully. It is the
basis for any action when dealing with the NEG/NEH, and may be used for
training purposes. The instructions should be subsequently stored at the
operation site.
The target group for these instructions is technical staff, who have basic
knowledge in mechanics and electrics.
Only complying technical staff may work on the NEG/NEH.
The NEG/NEH may only be installed, put into operation, maintained, trou-
bleshot and disassembled by persons authorised by the operator.
This documentation is protected by copyright.
Netter Vibration reserves all rights such as translations, reprinting and re-
production of the instructions, as well as parts thereof.
All technical information, data and instructions for installation, operation
and maintenance in these instructions are based on the latest information
available at the time of printing and take our past experience to the best of
our knowledge into account.
No claims can be derived from the information, illustrations and descrip-
tions in these operating instructions.
The manufacturer does not assume liability for damages resulting from:
•failure to observe the instructions,
•improper use,
•unauthorised repairs,
•technical modifications,
•use of non-permissible spare parts.
Translations are made to the best of our knowledge.
Netter Vibration does not assume liability for translation errors, even if the
translation was made by us or on our behalf. Only the original German text
remains binding.
The high frequency electric external vibrators of the series NEG and NEH
comply with the EC Machinery Directive 2006/42/EC, the electromagnetic
compatibility directive 2014/30/EU and the low voltage directive
2014/35/EU.
In particular the standards EN ISO 12100, EN 60529 and DIN EN 60034-1
has been observed.
Use and
storage
Target group
Copyright
Limitation of
liability
Directives /
standards
observed

General information
4
The following instruction and warning symbols are used in these instruc-
tions:
DANGER
indicates an immediate danger.
Disregard of this notice will result in death or severe person-
al injuries.
WARNING
indicates a potential danger.
Disregard of this notice can result in death or severe per-
sonal injuries.
CAUTION
indicates a potentially dangerous situation.
Disregard of this notice can result in minor or moderate per-
sonal injuries.
NOTICE
indicates potential material damage.
Disregard of this notice can result in material damage.
IMPORTANT
indicates actions, methods or notes that are not relative to safety, e.g. use-
ful information and tips.
Environmentally safe disposal
indicates the obligation of environmentally safe disposal.
Instruction
and warning
symbols
Personal
injuries
Material
damages
Notes

General information
5
Explanations of abbreviations in the type designation:
XXX YYYZZZZ-WWW
XXX indicates if the vibrator type has a housing foot:
•NEG = type with housing foot
•NEH = type without housing foot (to attach with clamping device NVH)
YYY = 100 signifies that the NEG/NEH is a high frequency electric exter-
nal vibrators
ZZZZ indicates the centrifugal force in daN (Decanewton).
WWW indicates special features:
•K = 130 °C PTC thermistor installed
•K2 = 120 °C PTC thermistor installed
•TS = 130 °C thermal protector with a normally closed (NC) switching
contact
•TS2 = 120 °C thermal protector with a normally closed (NC) switching
contact
•H = 200 - 240 V anti-condensation heater 0 - 50 W
•H110 = 100 - 120 V anti-condensation heater 0 - 50 W
•HD = Fully encapsulated stator (heavy duty)
•LR = Fan wheel (for cooling)
Type designa-
tions

Safety
6
2 Safety The NEG/NEH are intended for generating circular vibrations.
General applications are: loosening, conveying, sorting, compacting, sepa-
rating bulk materials and reducing friction. NEG/NEH are used for empty-
ing bunkers, as drives for conveyor troughs, sieves and vibrating tables.
The NEG/NEH are designed for installation in machines and may only be
put into operation, if it has been assured that the complete machine com-
plies with the regulations of the machinery directive.
Any other use is considered improper.
Installation, commissioning, maintenance and troubleshooting of the
NEG/NEH may only be performed by authorised qualified personnel.
All handling of the NEG/NEH is the responsibility of the operator.
DANGER
Risk of electric shock due to high voltage
An electric shock leads to serious injuries or even death.
➢Observe the permissible protection class and earthing.
The NEG/NEH may only be operated with the correct
connection of the protective conductor.
➢Perform all work only with insulated tools suitable for the
application.
➢All work on the system may only be carried out in a volt-
free state.
➢Never open the terminal box cover when voltage is ap-
plied.
➢Never loosen or remove paint-sealed screws.
➢Never touch or remove safety covers.
➢Protect the NEG/NEH against falling parts during all
work. Metal parts can cause a short circuit within the
NEG/NEH.
Intended use
Qualification
of qualified
personnel
High voltage

Safety
7
DANGER
Electric shock
An electric shock will result in serious injury or even death.
The NEG/NEH must be free of voltage during assembly,
start-up, maintenance and troubleshooting.
Observe the following five safety rules:
1. Disconnect the NEG/NEH from the mains supply.
2. Secure the NEG/NEH against re-activation.
3. Establish that the NEG/NEH has no voltage.
4. Earth and short-circuit the power supply of the NEG/NEH.
5. Cover adjacent live parts or fence them off.
WARNING
Falling parts
The NEG/NEH or parts of the construction can come loose due to vibra-
tion. Falling parts can lead to severe personal injuries.
➢For mounting the NEH use only the bracket NVH 1 or NVH 4 (depend-
ing on the NEH-type).
➢Use only suitable fastening screws and safety washer to attach the
NEG.
For attachment Netter Vibration recommends using Netter fastening
kits NBS.
➢Check the fastening screws after one hour of operation and thereafter
regularly (generally monthly).
➢Retighten the fastening screws, if necessary. Use a torque wrench and
tighten the screws crosswise.
➢In critical installation situations suitable securing is mandatory.
WARNING
Risk of injury while handling heavy parts
Risk of serious injury due to weight during transport and installation of the
NEG/NEH.
➢Observe the weight information in Chapter Technical data, from page 9
on.
➢Only qualified personnel may transport and install the NEG/NEH.
➢Use suitable load handling devices and slinging equipment.
➢Wear suitable personal protective equipment.
Safety
rules
Falling parts
Heavy parts

Safety
8
WARNING
Risk of injury due to rotating unbalances
During operation of the NEG/NEH without unbalance covers there is risk of
injury due to rotating unbalances.
➢Operate the NEG/NEH only with mounted unbalance covers.
CAUTION
Risk of burns due to hot surfaces
NEG/NEH can strongly heat up during operation. Direct contact may
cause burns.
➢Do not touch the NEG/NEH or the cable near the cable gland during
operation or shortly after being switched off.
➢Only operate the vibrators within the permissible ambient temperature,
according to Ch. Technical data, page 9.
Rotating
Unbalances
Hot surfaces

Technical data
9
3 Technical data
Nominal volt-
age, nominal
frequency
The main voltage and the main frequency must comply with the nomi-
nal voltage and nominal frequency indicated on the type plate.
Permissible Voltage deviation: +/- 5 %
Permissible frequency deviation: +/- 2 %
Possible power supply with:
•fixed voltage and frequency or
•frequency converter
Frequency changes and unbalance settings influence the centrifugal
force. During operation, the maximum permissible centrifugal force
(according to the type plate) must not be exceeded). The compliance
with the electromagnetic compatibility directive 2014/30/EU has to be
ensured.
Rotary speed
ranges
2-pole: 6000 rpm at 100 Hz
4-pole: 6000 rpm at 200 Hz.
Permissible
ambient tem-
perature*
-20 °C to 40 °C
The maximum ambient temperature specified on the type plate must
not be exceeded.
These values are valid for operation with an ON-period of 100 %.
For the following operation modes special requirements apply:
•cycled operation or
•frequency-controlled operation or
•synchronous operation.
These must be clarified with Netter Vibration on a case-by-case basis.
Sound level
Depending on type ≤ 70 dB(A)
The sound level is determined to a great extent by the surface upon
which the NEG/NEH is mounted (e.g. sheet metal). The sound level
will be amplified by non-silenced sheet metal.
* Higher temperatures are only possible after consultation with and written approval from the application techni-
cians of NetterVibration.
Permissible
operating
conditions

Technical data
10
1
type designation
2
rotary speed
3
nominal voltage
4
current
5
phases / capacity
6
serial number
7
year of manufacture
8
degree of protection
9
insulation class
10
power factor
11
power
12
nominal frequency
13
centrifugal force
14
duty cycle
The values can be found on the type plate. The type plate is located on the hous-
ing. For detailed technical data please refer to the brochure of the NEG/NEH.
Deviating customer-specific type plates (special designs) are possible.
Type
A
[mm]
D
[mm]
Weight
[kg]
NVH 1
180
94
3.5
NVH 4
240
90
4.5
NEH 100600
have to be used with the bracket NVH 1.
All other types of NEH
have to be used with the bracket NVH 4.
Netter Vibration recommends the following tightening torques [Nm]:
Type
M4
M5
M6
M8
M10
M12
M16
M18
M20
M22
M24
Fastening screws
and nuts, steel
Property class
8.8*
-
-
10
25
50
87
210
-
411
559
711
Fastening screws
for XS-
unbalances, steel,
Property class
12.9**
-
-
-
42
83
146
360
-
710
970
1225
Fastening screws
and nuts, stain-
less steel
8,8
21,4
44
74
183
-
-
-
-
Terminal plate
nuts, steel
1,2
2,0
3,0
6,5
13,5
-
-
-
-
-
-
Nut of the bracket
NVH
NVH1:
200
NVH4:
300
Screws as supplied, without additional lubrication.
* coefficient of sliding friction 0.14 ** coefficient of sliding friction 0.15
Always use a torque wrench and tighten the screws crosswise.
Type
M13x1
M15x1
M20x1
M25x1.5
M30x2
M45x1.5
Locking nuts
(Pos. 21) see page 24
30
50
100
170
340
500
Type plate
Brackets for
NEH
Tightening
torques

Design and function
11
4 Design and function
Example: NEG 1001140
Example: NEH 1002020
No.
Element
Function
1
Housing
Contains and protects the components of the
NEG/NEH.
2
Unbalance covers
Protect against grabbing into the unbalances.
3
Housing foot (only for NEG)
Attach the NEG to the mounting surface.
4
Type plate
Shows model specific information and data.
5
Terminal box
Contains the electrical connections.
6
Cable gland
(depending on type).
Connect the NEG/NEH.
7
Retaining cam (only for NEH)
Attach the NEH to the bracket NVH 1/NVH 4
(depending on type).
The high frequency electric external vibrators of the series NEG and NEH
are asynchronous motors with adjustable weights (unbalances) mounted
on their shaft ends.
The NEG/NEH generate circular vibrations, that means the vibrations act
in all directions of a plane.
The frequency can be controlled continuously with the help of frequency
converters.
The centrifugal force can be changed by adjustment of the unbalances.
Design
Function

Transport and storage
12
5 Transport and storage
Observe the safety instructions in Ch. Safety, from page 6 on.
Please refer to the brochure for weights and dimensions.
When transporting the NEG/NEH, ensure that the NEG/NEH is not sub-
jected to strong impacts or vibrations that could damage the bearings.
Please observe the following notes:
•Use only the transport eyelet/eyelets (1) for lifting the NEG/NEH. If the
vibrator is fitted with two transport eyes, both must be used for lifting.
•The pulling direction must not exceed 45°.
•Lifting tools are of the usual kind such as a pulley or a crane. When
moving loads, use suitable steel cables or hoisting slings which are suf-
ficiently dimensioned for these weights.
•Handle the NEG/NEH very carefully during transport.
The NEG/NEH are packed ready for installation.
The packaging protects the NEG/NEH from transport damage. The pack-
aging material has been selected from an environmentally safe and tech-
nically disposable point of view and is therefore recyclable.
The return of packaging to the material cycle conserves raw materials and
reduces the amount of waste.
•Store the NEG/NEH in a dry and clean environment.
•The permissible storage temperature is between -15 °C and +60 °C.
•The permissible relative humidity is max. 60 %.
•The storage time is max. 2 years.
•Do not store the NEG/NEH outdoors. The electrical components are
not protected against corrosion.
Transport-
conditions
Packaging
Storage

Installation
13
6 Installation
Observe the safety instructions in Ch. Safety, from page 6 on.
Please refer to the brochure for weights and dimensions.
The NEG/NEH can be operated in any position.
1. Notice: The feet of the NEG/NEH must lie completely on the surface
so that there is no tension in the housing when tightening the fas-
tening screw/screws, which could cause mechanical damage.
For NEH the bracket NVH 1 / NVH 4 must be welded over the entire
surface of the structure to be vibrated.
The mounting surface has to be flat (for NEG: ±0.1 mm flatness), and
clean with no paint residues or burn-ins.
2. Fastening depending on vibrator type:
•
Mount the NEG with fastening screws of quality 8.8 (DIN 931
oder 933) on the mounting surface. The fastening screws must
be secured with suitable locking devices/agents and tightened
crosswise. Netter Vibration recommends the use of
NBS-fastening kits.
•
Mount the NEH onto the bracket NVH 1 / NVH 4 with the sup-
plied nut.
Use a torque wrench and observe the recommended values for bolt
sizes and tightening torques in chap. Technical data, from page 9.
Higher tightening torques can cause the screws/nuts to break or the
threads to tear out.
Warning: Unsuitable screw connections may cause loosening of the
NEG/NEH by vibration. This can cause damage to persons and mate-
rial.
3. In critical installation situations, use addi-
tional protection against falling down, e.g.
steel cable NSE.
Fastening

Installation
14
The following requirements and conditions must be met to connect the
NEG/NEH electrically:
•The permissible operating conditions must be met. Please refer to
chap. Technical data, page 9 for operating conditions.
•A suitable overload protection (1) must be
pre-connected to each vibrator. The motor
protection switches must be interlocked with
each other in pairs, so that in the event of a
motor failure, the power supply from both
motors is interrupted at the same time in or-
der not to cause uncontrolled vibrations
which can damage the system.
•Only suitable, flexible supply cables must be used for connecting the
NEG/NEH. The conductors in the supply cable for the connection of the
NEG/NEH to the mains must be temperature-resistant and have a suf-
ficiently large cross-section, which is adapted to the cable length used.
When selecting the connection cables, consider that the cables are
mechanically stressed by vibration. Recommended cable types for
mains operation at 400 V, in potentially non-explosive atmosphere:
rubber hose line H07 RN-F or oil flex cable 110 CY.
For other voltages or other ambient conditions, the cables must be
adapted to the respective conditions and designed accordingly.
•All electrical cables must be carefully laid and must be protected from
high temperatures, lubricants and sharp edges. Care must be taken to
ensure that the cables are not chafed through by vibrating parts. The
correct condition of the electrical cables with their plugs must be
checked at regular intervals (usually every six months). Detected er-
rors are to be eliminated immediately.
•Tighten terminal plate nuts with pre-
scribed torque, see chap. Technical da-
ta, from page 9. Remember to put the
safety washer between the ring and the
nut and the vibration-damping insert
back.
•The wire ends must be fitted with suita-
ble insulated cable lugs, in order to pre-
vent the strands from splaying.
Electrical
connection

Installation
15
1
Earthing terminal for protective
conductor (green-yellow)
2
PTC-Thermistor connection
(depending on the vibrator-type)
Open the terminal box to connect the vibrators according to the type plate
as follows:
•information on the type plate
•connection schemes
•connection data
The green-yellow protective conductor must only be connected to the
earthing terminal.
Connection schemes
3-phase current
smaller voltage = delta connection
Higher voltage = star connection
connection without bridge
1: Earth terminal for protective conductor
2: PTC-Thermistor connection (depending
on type)
Connection
schemes

Installation
16
Connection data NEG
Type
Connection data
NEG 100770
230 V / 100 Hz = delta connection
400 V / 100 Hz = star connection
NEG 1001140
NEG 1001540
NEG 1001800
NEG 1002020
NEG 1003300 LR
NEG 1001000
42 V / 200 Hz = without bridge
250 V / 200 Hz = without bridge
NEG 1001090
42 V / 200 Hz = delta connection
NEG 1001400
42 V / 200 Hz = without bridge
110 V / 200 Hz = without bridge
250 V / 200 Hz = without bridge
400 V / 200 Hz = star connection
NEG 1002500 LR
42 V / 100 Hz = delta connection
400 V / 100 Hz = delta connection
Connection data NEH
Type
Connection data
NEH 100600
400 V / 100 Hz = delta connection
42 V / 200 Hz = delta connection
250 V / 200 Hz = without bridge
NEH 1001140
NEH 1001540
NEH 1002020
42 V / 100 Hz = delta connection
400 V / 100 Hz = delta connection
NEH 1002000 HD
Connection
data

Start-up and operation
17
7 Start-up and operation
Observe the safety instructions in chap. Safety, from page 6 on.
Please refer to chap. Technical data, page 9 for permissible operating
conditions.
•When commissioning the NEG/NEH, the rules and regulations of the
local associations for electrical engineering (e.g. VDE) and the valid
accident prevention regulations must be observed.
•The NEG/NEH must always be switched on and off at the main switch.
•When operating the NEG/NEH with a frequency converter, compliance
with the EMC directive must be ensured.
•If the speed is controlled with a frequency converter, the maximum
centrifugal force (according to the type plate) must not be exceeded.
•The NEG/NEH must not be operated without the covers for the unbal-
ances. The rotating unbalances cause a risk of injury.
•On initial start-up, the current consumption must be measured individ-
ually in all three phases and must correspond to the specifications on
the type plate.
•The terminal box cover must never be opened in the presence of volt-
age.
Carry out the following measures before start-up:
1. Check that the NEG/NEH have been mounted correctly and are in
perfect condition.
2. Check that the NEG/NEH have been properly connected and earthed.
3. Check that the cables are undamaged and laid according to the
known regulations and standards.
4. Check that all permissible operating conditions have been observed.
5. Check that all protective measures on the system have been ob-
served.
6. Eliminate possible errors before start-up.
7. Screw connections must be checked and, if necessary, retightened
after 1 h operating time (after initial start-up) and thereafter regularly
(generally monthly). Observe the recommended values for screw siz-
es and tightening torques, see chap. Technical data, from page 9
Permissible
operating
conditions
Regulations
Measures

Start-up and operation
18
Standard network forms are TN and TT networks with an earthed star
point, as in Germany. Depending on the NEG/NEH-type, suitable frequen-
cy and voltage transformers, such as Netter FSW / NFC, must be provided
for operation.
For overseas countries, also for countries within the EU, the mains volt-
age, the network configuration and the directives applicable there must
also be observed. In the case of deviations, the country, the standards, the
environmental conditions, as well as possible special features in the order,
must be agreed on in writing. If the NEG/NEH are operated and/or pow-
ered by another network configuration unknown to us, the guarantee ex-
pires completely and immediately.
The supply line must be protected according to the cross-section and the
nominal power of the NEG/NEH. The short circuit strength of this fuse
should be 25 kA.
Netter Vibration recommends a three-phase tripping (e. g. Schneider Elec-
tric GV2 L, Tesys Model U oder Compact NS).
For all NEG/NEH there is the possibility of unbalance adjustment to direct-
ly influence vibration amplitude, centrifugal force and current consumption.
Unless otherwise specified by you, the NEG/NEH were delivered with the
standard setting (100 %). If specifications have been made by the custom-
er, there are stickers with the current setting on the unbalance covers.
Notice: The unbalances may only be set mirror-symmetrically!
Procedure:
1. Switch off the NEG/NEH at the main switch, secure against uninten-
tional starting and ensure that there is no voltage.
2. Loosen both unbalance covers.
3. Loosen the locking nuts or locking screws.
4. Bring the unbalances to the desired setting according to the following
descriptions for the various unbalance discs. Note the mirror-
symmetrical setting.
5. Retighten the locking nuts or locking screws. Observe the recom-
mended tightening torques, see chap. Technical data, from page 9
6. Fasten both covers for the unbalances.
Power supply
Supply line
connection
Adjustment of
unbalances

Start-up and operation
19
The table shows the number and type of unbalances, depending on the
voltage:
Type
Number per side, unbalance type and setting
400 V
42 V
250 V
110 V
NEG 100770
4x XLs
Setting: 17 %
max. permitted: 25 %
--
--
--
NEG 1001000
--
7x XL
Setting: 100 %
max. permitted: 100 %
7x XL
Setting: 100 %
max. permitted: 100 %
--
NEG 1001090
--
4x XLs
max. permitted: 100 %
--
--
NEG 1001140
6x XLs
Setting: 17 %
max. permitted: 25 %
--
--
--
NEG 1001400
10x XL
Setting: 100 %
max. permitted: 100 %
10x XL
Setting: 100 %
max. permitted: 100 %
10x XL
Setting: 100 %
max. permitted: 100 %
10x XL
Setting: 100 %
max. permitted: 100 %
NEG 1001540
6x XLs
Setting: 17 %
max. permitted: 25 %
--
--
--
NEG 1001800
7x XLs
Setting: 22 %
max. permitted: 25 %
--
--
--
NEG 1002020
8x XLs
Setting: 17 %
max. permitted: 25 %
--
--
--
NEG 1002500
LR
3x XLs
Setting: 87 %
max. permitted: 87 %
3x XLs
Setting: 87 %
max. permitted: 87 %
--
--
NEG 1003300
LR
2x special discs
max. permitted: 100 %
--
--
NEH 100600
3x XLs
Setting: 100 %
max. permitted: 100 %
3x XLs
Setting: 100 %
max. permitted: 100 %
3x XLs
Setting: 100 %
max. permitted: 100 %
--
NEH 1001140
4x XLs
max. permitted: 100 %
4x XLs
max. permitted: 100 %
4x XLs
max. permitted: 100 %
NEH 1001540
9x XLs
max. permitted: 100 %
9x XLs
max. permitted: 100 %
9x XLs
max. permitted: 100 %
NEH 1002020,
NEH 1002000
HD
5x XLs
Setting: 52 %
max. permitted: 3x XLs
87 %
5x XLs
Setting: 52 %
max. permitted: 3x XLs
87 %
Number of
unbalances

Start-up and operation
20
The centrifugal force is adjustable with the unbalance discs (lamella) of
type XL in the following steps:
1: Number of unbalance discs per side
2: Default number of unbalance discs per vibrator
3: Centrifugal force in %
There are 2 possibilities to adjust the unbalances:
1. The unbalance adjustment (fine adjustment) is carried out by remov-
ing one unbalance disc on each side. All centrifugal values in % can
be adjusted as specified in the table.
The removed unbalance discs must be replaced by compensation
washers of identical thickness and identical inner diameter. These are
available from Netter Vibration.
2. The unbalance adjustment (coarse adjustment) is performed by turn-
ing one unbalance disc on each side by 180° on the shaft.
Twice the number of unbalance discs turned by 180° becomes inef-
fective.
The centrifugal force is adjustable with the unbalance discs (lamella) type
XLs. Adjustment of the unbalances is carried out according to a scale disc
or the supplementary sheet in the terminal box of the NEG/NEH.
By rotating the outer, adjustable unbalance disc(s) to another position, the
percentage of the centrifugal force changes as shown in the illustration
below. The grid position is defined by position pins.
Settings:
Unbalance
discs
type XL
Unbalances
type XLs