Eltroplan REVCON RLD User manual

Status 2/2021
Product manual RLD-E0
RLD –REVCON Low Duty - Regen units
Power range 2kW – 431kW
Voltage range 230V, 400V, 460V, 500V, 690V

Contents
Operating instructions RLD 1
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
1 Preface and general information ......................................................................................... 3
1.1 About these Operating Instructions ..................................................................................... 3
1.1.1 Terminology used ............................................................................................................... 3
1.1.2 Ordering code ..................................................................................................................... 4
1.2 Scope of delivery ................................................................................................................. 4
1.3 Legal regulations ................................................................................................................. 5
1.4 EC-Directives / Declaration of conformity ............................................................................ 6
1.4.1 EC-low voltage directive ...................................................................................................... 7
1.4.2 EC-directive Electromagnetic compatibility .......................................................................... 8
2 Safety information .............................................................................................................. 9
2.1 General safety information................................................................................................ 10
2.2 Safety-responsible persons ................................................................................................ 14
2.3 Layout of the safety information ....................................................................................... 15
2.4 Residual hazards ............................................................................................................... 15
2.5 General instructions .......................................................................................................... 16
3 Technical data ................................................................................................................... 27
3.1 Characteristics .................................................................................................................. 27
3.2 General data / application conditions ................................................................................ 28
3.3 Rated data ........................................................................................................................ 29
3.3.1 Power feedback unit REVCON RLD E0 ................................................................................ 29
3.4 Fuses and wire cross sections ............................................................................................ 32
3.5 RFI-filter REVCON RLD E0................................................................................................... 35
3.6 Harmonic filter module RHF-RA module ............................................................................ 37
4 Installation ....................................................................................................................... 39
4.1 Mechanical installation ..................................................................................................... 39
4.1.1 Important hints ................................................................................................................. 39
4.2 Figures and facts ............................................................................................................... 40
4.2.1 Dimensions, weight and power loss ................................................................................... 40
4.2.2 Maximum cross section, screws and tightening torque ....................................................... 42
4.2.3 Dimensions ....................................................................................................................... 44
4.2.4 Dimensions RFI-filter ......................................................................................................... 52
4.2.5 Dimensions RHF-RA-filter .................................................................................................. 55
4.3 Electrical installation ......................................................................................................... 60
4.3.1 Operator’s safety .............................................................................................................. 60

Contents
2 Operating instructions RLD
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
4.3.2 Protection of the power feedback unit .............................................................................. 60
4.3.3 Mains types / Mains characteristics ................................................................................... 61
4.3.4 Specifications of the used wires ......................................................................................... 61
4.4 Connection ....................................................................................................................... 62
4.4.1 Power connection ............................................................................................................. 62
4.4.1.1 Wiring schematic REVCON RLD E0 ..................................................................................... 64
4.4.1.2 Wiring schematic REVCON RLD E0 with RHF-RA ................................................................. 66
4.4.1.3 Wiring schematic REVCON RLD E0 and FC with RHF-RA ...................................................... 68
4.4.2 Fan supply ........................................................................................................................ 70
4.4.3 Control wires .................................................................................................................... 70
4.4.4 Control functions .............................................................................................................. 70
4.4.4.1 Control terminals of Version A ........................................................................................... 70
4.4.4.2 Control terminals of Version B ........................................................................................... 74
4.5 Application example ......................................................................................................... 76
4.6 Installation of a power feedback unit in a CE-typical drive system ...................................... 77
4.6.1 Installation ....................................................................................................................... 79
4.6.2 Connection of a RFI-filter ................................................................................................... 80
4.6.3 Design of an EMC-conformal cabinet ................................................................................. 81
4.6.4 Remarks ........................................................................................................................... 82
4.6.5 Installation of control wires ............................................................................................... 83
5 Commissioning.................................................................................................................. 84
5.1 First powering up .............................................................................................................. 84
6 Configuration .................................................................................................................... 85
7 Troubleshooting and fault elimination ............................................................................... 88
7.1 LED-messages ................................................................................................................... 89
8 Service 91
9 Options 92
10 REVCON® product overview ............................................................................................... 95
10.1 Contact ............................................................................................................................. 96

Preface and general information
Operating instructions RLD 3
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
1 Preface and general information
1.1 About these Operating Instructions
 These Operating Instructions help you to work properly on and with the power feed-
back units REVCON RLD. They contain safety information which must be observed
and information which are necessary for an undisturbed operation of the units together
with the exploitation of all the advantages of the system.
 All persons who work on and with the power feedback units REVCON RLD must
have the Operation instructions available and observe all relevant notes and instruc-
tion.
 The Operating Instructions must always be in a complete and perfectly readable state.
1.1.1 Terminology used
Power feedback unit
For „Power feedback unit „REVCON RLD“ in the following the term „Power feedback
unit“ is used.
Controller
For the frequency inverter which is used together with the power feedback unit in the fol-
lowing the term „Controller“ is used.
Drive system
For a drive system with power feedback units, controller and other components of the drive
system in the following the term „Drive system“ is used.

Preface and general information
4 Operating instructions RLD
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
1.1.2 Ordering code
1.2 Scope of delivery
 1 Power feedback unit REVCON RLD
 1 Operating instructions
 After receipt of the delivery verify immediately, if the scope of supply correspond to
the shipping documents. We make no warranty for later complained defects
Claim
 Visible transport damages in transit immediately at the deliverer.
 Visible deficiencies/incompleteness immediately to ELTROPLAN-REVCON.
RLD
E
0
3
2
-
400
-
50
-
0
-
A
E
•Level E:
With internal mains
inductance
032
•
Maximal feedback
power:
E.g. 32
kW
50
•
Mainsfrequency:
E.g. 50Hz
A
•
Version:
A/B
RLD
•Product type:
REVCON- Low Duty-
For up to 50% duty cycle
0
•
Connection voltage:
E.g. 400VAC
0
Auxiliary voltage
:
0=Not required
•
0: Without integrated
harmonic filter
400V
1: With integrated
harmonic filter
•
•

Preface and general information
Operating instructions RLD 5
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
1.3 Legal regulations
Labelling Nameplate CE-mark Manufacturer
Power feedback units REVCON

RLD
are unequivocally marked by the contents
of the nameplate.
Conforms the EC Low
Voltage Directive
ELTROPLAN-
REVCON
Edisonstraße 3
D-59199 Bönen
Approval UL-Approval with file number E241278, Vol. 2 is available for the following products:
RLD-E0 25-500-50/60-0-115/230-A RLD-E0 50-500-50/60-0-115/230-A
RLD-E0 120-500-50/60-0-115/230-A RLD-E0 213-500-50/60-0-115/230-A
RLD-E0 431-500-50/60-0-115/230-A
Patent rights The power feedback unit REVCON

RLD is protected in Germany and Europe by patents:
Patent-No.: DE 3938654C1 and Patent-Nr.: 90123584.6-2207.
Patent infringements become prosecute.
Application
as directed
Power feedback unit REVCON

RLD
 Must only be operated under the conditions prescribed in these instructions.
 Are components
– to feedback electrical energy
– used for installation into a machine
– used for assembly together with other components to from a machine
 Are electric units for the installation into control cabinets or similar enclosed operating
housing.
 Comply with the requirements of the Low-Voltage Directive
 Are not machines for the purpose of the Machinery Directive
 Are not to be used as domestic appliances, but only for industrial purpose.
Drive systems with power feedback unit REVCON RLD
 Comply with the EMC-Directive if they are installed according to the guidelines of CE-typical
drive systems.
 Can be used
– on public and non-public mains
– in industrial as well as residential and commercial premises
 The user is responsible for the compliance of this application with the EC directives.
Liability

The information, data and notes in these Operating Instructions met the state of the art at the
time of printing. Claims referring to power feedback units which have already been supplied
cannot be derived from information, illustrations and descriptions given in these Operation In-
structions.
 The specifications, processes and circuitry described in these Operating Instructions are for
guidance only and must be adapted to your own specific application. ELTROPLAN-REVCON
does not take responsibility for the suitability of the process and circuit proposals.
 The indications given in these Operating Instructions describe the features of the product with-
out warranting them.
 ELTROPLAN-REVCON does not accept any liability for damage and operating interference
caused by:
– disregarding these instructions
– unauthorized modifications to the power feedback unit
– operating errors
– improper working on and with the power feedback unit
Warranty

Warranty conditions: see sales and delivery conditions of ELTROPLAN-REVCON GmbH.
 Warranty claims must be made immediately after detecting defects or faults.
 The warranty is void in all cases where liability claims cannot be made.
Disposal Material recycle disposal
Metal  -
Plastic  -
Printed-board assemblies - 

Preface and general information
6 Operating instructions RLD
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
1.4 EC-Directives / Declaration of conformity
What is the purpose of EC-Directives?
The EC-Directives have been drawn up by the European council to define common tech-
nical standards and certification procedures within the European Community. At the mo-
ment there are 30 EC-Directives for product sectors. The directives are or will be convert-
ed in national laws by the member states. If a certificate is conferred in one member state,
it is valid in all other member states automatically.
The directives only describe the basic standards. The technical details are or will be de-
scribed in harmonized European standards.
What is the meaning of the CE-marking?
After a conformity-assessment-procedure the conformity with the standards of the EC-
Directives is certified by fixing the CE-marking. Within the EC there are no trading obsta-
cles for a CE-marked product.
Power feedback units with CE-mark themselves are compliant with the Low-Voltage Di-
rective only. For observing the EMC Directive recommendations are made.

Preface and general information
Operating instructions RLD 7
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
1.4.1 EC-low voltage directive
Low voltage directive (2014/35/EU)
General:
 The Low-Voltage Directive is valid for all electrical equipment which is used at a nominal
voltage between 50V and 1000V AC and between 75V and 1500V DC together with cus-
tomary environment conditions. Excluded is e.g. the use of electrical equipment in explo-
sive areas and electrical components of lifts for persons or material.
 Aim of the Low-Voltage Directive is to put only those products into commerce which
don’t endanger the safety of persons and animals as well as the preservation of material as-
sets.
EC-declaration of conformity
According to the EC-Low Voltage Directive (2014/35/EU)
The power feedback units REVCON RLD have been developed, designed and manufac-
tured in accordance with the above mentioned EC-Directive and in sole responsibility of
ELTROPLAN-REVCON Elektrotechnische Anlagen GmbH,
Edisonstraße 3, D-59199 Bönen
Considered standards:
EN 50178:1997
EN 60529:1991 + A1:2000
EN 61140:2007

Preface and general information
8 Operating instructions RLD
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
1.4.2 EC-directive Electromagnetic compatibility
EMC directive (2014/30/EU)
General:
The objective target is described as follows:
The... designated devices must be so manufactured, that
(a) an intended operation of radio- and telecommunication devices and other devices is
possible and
(b) the devices have an adequate stability against electromagnetically disturbances, so that
an intended operation is possible.
EG-declaration by the manufacturer
in terms of the EG-standard EMC (2004/108/EU)
The listed REVCON products are in terms of the EMC no independently recoverable
products, this means only after integration in the overall system would they be rateable re-
garding to EMC. The rating became detected for typical plant constructions, but not for the
several products.
ELTROPLAN- REVCON Elektrotechnische Anlagen GmbH,
Edisonstraße 3, D-59199 Bönen
Considered standards:
EN 61800-6-2:2005
EN 61800-3-2:2004 + A1:2012
EN 61800-3-3:2013
EN 61000-3-12:2011

Safety information
Operating instructions RLD 9
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
2 Safety information
Safety and application notes
for drive converters
(Low-Voltage Directive (2006/95/EEC)
1. General
During operation, power feedback unit may have, according to
their type of protection, live, bare, in some cases also movable or
rotating parts as well as hot surfaces.
Non –authorized removal of required cover, inappropriate use, in-
correct installation or operation, creates the risk of severe injury to
persons or damage to material assets.
Further information can be obtained from the documentation.
All operations concerning transport, installation and commission-
ing as well as maintenance must be carried out by qualified,
skilled personnel (IEC 364 and CENELEC HD 384 or DIN VDE
0100 and IEC-Report 664 or DIN VDE 0110 and national regula-
tions for the preventions of accidents must be observed).
According to this basic safety information qualified skilled per-
sonnel are persons who are familiar with the erection, assembly,
commissioning and operation of the product and who have the
qualifications necessary for their occupation .
2. Application as directed
Power feedback units are components which are designed for in-
stallation in electrical systems or machinery.
When installing in machines, commissioning of the power feed-
back unit (i.e. the starting of operation as directed) is prohibited
until it is proven, that the machine corresponds to the regulations
of the EC Directive (2006/42/EG) (Machinery Directive); EN
60204 must be observed.
Commissioning (i.e. starting operation as directed) is only allowed
when there is compliance with the EMC-Directive
(2004/108/EG).
The power feedback units meet the requirements of the Low-
Voltage Directive (2006/95/EEC). The harmonized standards of
the prEN 50178/DIN VDE 0160 series together with EN 60439-
1/DIN VDE 0660 part 500 and EN 60146/DIN VDE 0558 are ap-
plicable for the power feedback unit. The technical data and in-
formation on the connection conditions must be obtained from the
nameplate and the documentation and must be observed in all cas-
es.
3. Transport, Storage
Notes on transport, storage and appropriate handling must be ob-
served.
At non-observance any warranty expires.
The power feedback unit has to be protected from inadmissible
stress.
The transport is only valid in original packaging and in the there-
on by pictograms marked transport position.
In particular during transport and handling no components are al-
lowed to be bent and / or isolating distances may not be altered.
The units are equipped with electrostatic sensitive devices, which
may be damaged by improper handling. Therefore it has to be
avoided to get in contact with electronic components. If electronic
components are damaged mechanically the unit must not be put
into operation, as it cannot be ensured, that all relevant standards
are observed. Climatic conditions must be observed according to
prEN 50178.
4. Erection
The devices must be erected and cooled according to the regula-
tions of the corresponding documentation.
The power feedback units must be protected from inappropriate
loads. Particularly during transport and handling, components
must not be bent and / or isolating distances must not be
changed. Touching of electronic components and contacts must
be avoided.
Power feedback units contain electro-statically sensitive com-
ponents which can easily be damaged by inappropriate han-
dling. Electrical components must not be damaged or destroyed
mechanically (health risk are possible!).
5. Electrical Connection
When working on live power feedback units, the valid national
regulations for the prevention of accidents (e.g. VBG 4) must be
observed. Before any installation or connection works, the plant
has to be switched off and to be secured properly.
The electrical installation must be carried out according to the ap-
propriate regulations (e.g. cable cross-sections, fuses, PE-
connection). More detailed information is included in the docu-
mentation. When using the power feedback unit with controllers
without safe separation from the supply line (to VDE 0100) all
control wiring has to be include in further protective measures
(e.g. double insulated or shielded, grounded and insulated) .
Notes concerning the installation in compliance with EMC – such
as screening, grounding, arrangement of filters and laying of ca-
bles – are included in the chapter installation of this documenta-
tion. These notes must be also observed in all cases for power
feedback units with the CE-mark. The compliance with the re-
quired limit values demanded by the EMC legislation is the re-
sponsibility of the manufacturer of the system or machine.
6. Operation
Systems where power feedback units are installed, if applicable,
have to be equipped with additional monitoring and protective
devices according to the valid safety regulations e.g. law on
technical tools, regulations for the prevention of accidents, etc. .
After disconnecting the power feedback unit from the supply
voltage, live parts of the power feedback unit and power con-
nections must not be touched immediately, because of possibly
charged capacitors. For this, observe the corresponding labels
on the drive controllers.
During operation, all covers and doors must be closed.
7. Maintenance and service
The manufacturer’s documentation must be observed.
This safety information must be kept!
The product-specific safety and application notes in these Oper-
ating Instructions must also be observed!

Safety information
10 Operating instructions RLD
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
2.1 General safety information
 These safety regulations are not entitled to completeness. In case of questions please
contact our technicians.
 When commissioning the power feedback unit is compliant with the state of the art.
The power feedback unit generally allows safe operation.
 The statements of this manual describe the attributes of the products without guaran-
teeing them.
 The power feedback unit may expose persons, the power feedback units itself and oth-
er material to danger, if
– non qualified personal works at and with the power feedback unit.
– The power feedback units are used in opposite to its purpose.
 Power feedback units have to be projected in a way, that they fulfil their function and
don’t expose persons to danger, if they are mounted correctly and are used in accord-
ance with their purpose. This applies also for the interplay with the whole plant.
 The units, operational data and circuit details described in this manual have to be un-
derstood analogously and have to be checked for transferability to each application.
 For the reasons of personal safety, the observance of the EMC-regulations and for the
regular cooling the operation of the device is only allowed with a closed cover of the
housing and with mounted flanges!
 Use the drive system only in flawless condition.

Safety information
Operating instructions RLD 11
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
 Modifications of the power feedback units without consultation of a REVCON-
technician are not allowed generally.
 The warranty given by us expires, if the unit is modified or (even partially) dismantled
or if it is used in contradiction to our instructions.
 The constructor of the plant, who has to know the technical guidelines, bears the re-
sponsibility for the correct selection and arrangement of the electrical components.
 Putting into operation of the power feedback unit is only admissible at VDE-conform
nets of electrical power supply. Non observance may damage the device!
 In accordance with the corresponding standards and guidelines the operation on even
for a short time over-compensated networks (cos1) respectively on un-choked com-
pensation-units is not admissible. If this is done nevertheless, overvoltage will occur
(caused by oscillating currents), which may damage all connected components, espe-
cially electronic units like controllers and power feedback units.
 To low powered or unloaded generators and to regulating transformers it is never al-
lowed to feed back power without a previous consultation of our application depart-
ment. Otherwise unintended voltage rises / excess voltages are generated, which may
damage or destroy REVCON and combined units!
 Before operating at nets without reference to neutral ground additional safety
measures (e.g. installation of over voltage suppressors like MOV’s) have to be done. If
necessary, please ask for technical support by our technicians.

Safety information
12 Operating instructions RLD
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
 An undisturbed operation of the power feedback unit is only probable, if the following
instructions are observed. If these instructions are not observed, tripping of the unit
and damages may occur.
 Pay attention to the correct values of mains and DC-bus voltage.
 Separate power and control wires (> 15cm)
 Use shielded or twisted control wires. Connect both ends of the shield to ground!
 When using the digital input devices, only use suitable switching devices, whose
contacts are able to switch the connected voltages.
 Connect the housings of drive, controller and power feedback unit to ground
carefully. Connect shields of power cables to ground at both ends with as big
surface as possible (remove lacquer)!
 Connect the cabinet or the plant by a star-shaped network to ground (ground
loops have to be avoided!)
 The power feedback unit has been designed for a fixed connection to mains only. Es-
pecially when using RFI-filter leakage current values> 3,5mA may occur. The cross
section of the earthing conductor must be at least 10mm² copper, or a second conduc-
tor has to be connected in parallel (star shaped grounding network).
 If components are used, which have no electrical separated inputs / outputs it is neces-
sary to equalize the potentials (e.g. by an equalizing wire). If this is not observed, the-
se components may be damaged by equalizing currents.
 When carrying out an insulations test in accordance with VDE0100/part 620 the de-
vice has to be disconnected to avoid damage to the power semiconductors. This proce-
dure corresponds with the standard, as each device performs a high voltage test in ac-
cordance with VDE 0160 (EN 50178) in the course of final testing after manufactur-
ing.

Safety information
Operating instructions RLD 13
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
 A standard fault-current circuit breaker (sensitive on peak currents) is not allowed to
be used as the only protective measure when using controller and power feedback unit
Caused by a DC-component in the mains current a controller with 3-phase input volt-
age may prevent a fault-current circuit breaker from tripping in case of a earth fault. In
accordance with VDE 0160 a fault-current circuit breaker is not allowed to be used as
the only protective measure. In dependence on the kind of network (TN, IT, TT) fur-
ther protective measures in accordance with VDE 0100 part 410 are necessary. For a
TN-network this may be an over current protection, for an IT-network an insulation
supervision with pulscode-measurment. For all kind of networks protective insulation
(-transformer) may be used, if required power and length of wires allow that. When se-
lecting a fault current circuit breaker the following measures have to be considered:
 The fault current circuit breaker has to be compliant with the VDE 0664 standard.
 The tripping current should be 300mA or more, to prevent a premature tripping
caused by the leakage current of the controller. In dependence on the load, the
length of the motor cables and the usage of a RFI-filter the leakage current may
even be much higher.
Fault current circuit breakers, which are sensitive to all kinds of leakage currents, grant a
good protection and are suitable as the only protection measurement for one ore three
phase controllers. The connection instructions of the manufacturer have to be observed.

Safety information
14 Operating instructions RLD
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
2.2 Safety-responsible persons
User
 User is any natural or legal entity, who uses the drive system or by whom order the
drive system is used.
 The user respectively his security officer have to grant
– that all relevant regulations, instructions and laws have to be observed
– that only qualified personnel works with or at the drive system
– that the relevant manual is available for the personnel during any works
– that non-qualified personnel are prohibited to work on the drive system
Qualified staff
Stop!
Qualified staff means persons, that are entitled (by the safety responsible) due to their training,
experience, education, their knowledge in relevant norms, directives, accident directives and op-
eration conditions to execute the necessary works and to recognize possible danger and to avoid
it. (Definition of qualified staff IEC 364)
Intended Use
Danger!
Power feedback units are electrical drive components, which are directed to be installed in
electrical plants or machines. They have to be used only for drive systems with infinity variable
speed controls of 3-phase asynchronous or permanent magnet motors. The usage with other elec-
trical loads is not permitted and may damage the devices. The power feedback unit may only be
connected to symmetrical networks. Non-observance may damage the devices.
STOP

Operating instructions RLD
2.3
Layout of the safety information

All safety notes have a uniform
-
The icon characterizes the type of danger.
-
The signal word characterizes the severity of danger.
-
The note describes the danger and suggests how to avoid the danger.
Signal word
Legend
Used pictograms
Warning of
injury to
persons
Imminent danger
by current
Warning
imminent danger
Dangerous
situation
Warning of hot
surface
Warning of
property damages
Harmful situation
Useful information
and application
notes
Information
2.4
Residual hazards
Operator’s safety
After mains disconnections, the power
Protection of the device
Cyclic connection and
disconnection of the supply voltage at terminals L1, L2 und L3, may
over
load the internal input current limitation:
Allow at least 1 minute between disconnection and reconnection.
STOP
STOP
Safety information
Operating instructions RLD
ELTROPLAN -
REVCON
Elektrotechnische Anlagen GmbH
Layout of the safety information
All safety notes have a uniform
layout:
The icon characterizes the type of danger.
The signal word characterizes the severity of danger.
The note describes the danger and suggests how to avoid the danger.
Used pictograms
Signal words
Imminent danger
by current
Danger!
Warns of an immediately imminent Danger.
Conse
quences by disregard:
Death or severe injuries
Warning
of an
imminent danger
Warning!
Warns of a possible, very danger
situation.
Possible consequences by disregard:
Death or severe injuries
Dangerous
situation
Caution!
Warns of a possible, dangerous situation.
Possible consequences by disregard:
Minor or small injuries
Warning of hot
surface
Warning!
Warns of touching a hot surface.
Possible consequences by disregard:
Burnings
Harmful situation
Stop!
Warns of possible property damages.
Possible consequences by
Damage of the drive system or its surroundings
Information
Note!
Marks a generally, useful note, tip.
If you follow it, you make the
handling of the system
easier
Residual hazards
After mains disconnections, the power
terminals + and – remain
live for several minutes.
disconnection of the supply voltage at terminals L1, L2 und L3, may
load the internal input current limitation:
Allow at least 1 minute between disconnection and reconnection.
Safety information
15
REVCON


Elektrotechnische Anlagen GmbH
The note describes the danger and suggests how to avoid the danger.
Signal words
Warns of an immediately imminent Danger.
quences by disregard:
Warns of a possible, very danger
Possible consequences by disregard:
Warns of a possible, dangerous situation.
Possible consequences by disregard:
Warns of touching a hot surface.
Possible consequences by disregard:
Warns of possible property damages.
Possible consequences by
disregard:
Damage of the drive system or its surroundings
Marks a generally, useful note, tip.
If you follow it, you make the
easier
live for several minutes.
disconnection of the supply voltage at terminals L1, L2 und L3, may

Safety information
16 Operating instructions RLD
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
2.5 General instructions
By this information to erectors and users of a plant hints on properties and directions con-
cerning the power feedback unit are given. These hints are not entitled to completeness.
Special features in comparison to a brake chopper:
Unlike a braking resistor a power feedback device isn't a constant drain, but it's dependent
on the momentary characteristics of the supplying net. Commutation brake downs and
voltage-flicker in the net have a considerable effect to the backward current of the device.
In case of a short time voltage brake down the backward current has to raise correspond-
ingly to feedback the demanded power-amount. Does the level of the supply voltage sink
for a longer time; the maximum feedback power is reduced.
If only one phase fails, the device is able to work on, but the current in the two remaining
conductors will rise up to 150% of the normal level.

Safety information
Operating instructions RLD 17
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
Length of the DC-connection:
The maximum inductivity of the DC-connection between output B6 Bridge of the frequen-
cy converter and the power feedback device must not exceed an assigned value, as this in-
ductivity inducts an additional voltage to the DC-bus of the frequency converter, when the
IGBT’s are switched off. To avoid an overload to the components of the power feedback
unit, this additional voltage must not exceed 150V.
Maximal inductance of the DC-wire:
Nominal voltage 400V
REVCON
®
-type DC-capacitance
[µF]
Maximal Inductance of the DC-Wire
[mH]
RLD-E0 2-400-50-0-B 20 1,55
9
5
RLD-E0 4-400-50-0-B 20 1,55
95
RLD-E0 8-400-50-0-B 20 1,55
RLD-E0 12-400-50-0-B 20 0,68
RLD-E0 16-400-50-0-B 40 0,86
RLD-E0 20-400-50-0-B 40 0,27
RLD-E0 24-400-50-0-A 220 3,52
RLD-E0 32-400-50-0-A 220 1,76
RLD-E0 40-400-50-0-A 220 1,05
RLD-E0 48-400-50-0-A 440 1,68
RLD-E0 58-400-50-0-A 440 1,10
RLD-E0 80-400-50-0-A 440 0,52
RLD-E0 95-400-50-0-A 440 0,34
RLD-E0 116-400-50-0-A 440 0,21
RLD-E0 140-400-50-0-A 660 0,18
RLD-E0 170-400-50-0-A 660 0,09
RLD-E0 200-400-50-0-A 660 0,05
RLD-E0 230-400-50-0-A 880 0,08
RLD-E0 265-400-50-0-A 880 0,03
RLD-E0 300-400-50-0-A 880 0,04
RLD-E0 345-400-50-0-A 880 0,01
Table 2.5.1

Safety information
18 Operating instructions RLD
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
Nominal voltage 500V
REVCON
®
-type DC-capacitance
[µF]
Maximal Inductance of the DC-Wire
[mH]
RLD-E0 10-500-50/60-0-A 220 58,99
RLD-E0 15-500-50/60-0-A 220 25,55
RLD-E0 20-500-50/60-0-A 220 14,00
RLD-E0 25-500-50/60-0-A 220 8,72
RLD-E0 30-500-50/60-0-A 220 5,89
RLD-E0 40-500-50/60-0-A 220 3,13
RLD-E0 50-500-50/60-0-A 220 1,88
RLD-E0 60-500-50/60-0-A 220 1,22
RLD-E0 73-500-50/60-0-A 440 1,95
RLD-E0 88-500-50/60-0-A 440 0,94
RLD-E0 100-500-50/60-0-A 440 0,63
RLD-E0 120-500-50/60-0-A 660 0,68
RLD-E0 145-500-50/60-115-A 660 0,44
RLD-E0 175-500-50/60-115-A 660 0,27
RLD-E0 213-500-50/60-115-A 880 0,28
RLD-E0 250-500-50/60-115-A 880 0,20
RLD-E0 288-500-50/60-115-A 880 0,14
RLD-E0 331-500-50/60-115-A 880 0,10
RLD-E0 375-500-50/60-115-A 880 0,06
RLD-E0 431-500-50/60-115-A 880 0,06
Table 2.5.2

Safety information
Operating instructions RLD 19
ELTROPLAN - REVCON


Elektrotechnische Anlagen GmbH
Operation on a generator
The usage of a power feedback unit within an isolated network (e.g. with a diesel genera-
tor) is possible, but there are restrictive regulations concerning the power limits.
M
M
REVCON
R
0,4kV
100kVA
20kW
20kW
G
FC
Figure 2.5.1
Within a network that is assembled like in figure 2.5.1 there are two additional restrictions:
First the power of the motor connected to the inverter must be lower than half of the nomi-
nal power of the generator. Second the total amount of the power of the two other loads
must be more than double of the feedback power.
If these conditions aren't checked up a change from motor to generator operation may re-
sult in load shocks. These shocks are too dynamic for the voltage regulator of the genera-
tor. The regulator reacts with an overshoot and as a result of this with an over voltage with-
in the isolated network.
Danger!
Over voltages may cause serious damages to the connected frequency inverter and /or to the
power feedback unit and to the other loads.