Eltroplan REVCON DC Series User manual

ELTROPLAN-REVCON
Elektrotechnische Anlagen GmbH
Operating instructions
Power feed- and feedback unit REVCON

DC(S)
Power range 13 ... 135kW
Voltage range 400V and 460V
V 3.2 Issue 14/02

Contents
Operating instructions DC(S) 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 cope of delivery ................................................................................................................. 4
1.3 Legal regulations ................................................................................................................. 5
1.4 EC-Directives / Declaration of conformity ............................................................................ 6
1.4.1 What is the purpose of EC-Directives? ................................................................................. 6
1.4.2 What is the meaning of the CE-mark? .................................................................................. 6
1.4.3 EC-Low-Voltage Directive .................................................................................................... 6
1.4.4 Directive Machinery ............................................................................................................ 8
1.4.5 EC-directive Electromagnetic compatibility .......................................................................... 9
2 afety information ............................................................................................................ 10
2.1 General safety information................................................................................................ 11
2.2 afety-responsible persons ................................................................................................ 15
2.3 Layout of the safety information ....................................................................................... 16
2.4 Residual hazards ............................................................................................................... 16
2.5 General instructions .......................................................................................................... 17
2.6 UL- permission .................................................................................................................. 27
3 Technical data ................................................................................................................... 28
3.1 General data / application conditions ................................................................................ 29
3.2 Rated data ........................................................................................................................ 30
3.3.1 Power feed/feedback unit ................................................................................................. 30
3.3.2 Current load ...................................................................................................................... 31
3.3.3 Hints for proportion .......................................................................................................... 32
3.3.4 Thermal limited load graphs .............................................................................................. 34
3.3.5 Fuses and wire cross sections ............................................................................................ 37
3.3.5.1 eries fuses ....................................................................................................................... 37
3.3.5.2 Internal fuses .................................................................................................................... 38
3.4 witch on current limiter ................................................................................................... 39
3.5 RFI-filter ........................................................................................................................... 39
4 Installation ....................................................................................................................... 40
4.1 Mechanical installation ..................................................................................................... 40
4.1.1 Important hints ................................................................................................................. 40

Contents
2 Operating instructions DC(S)
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
4.2 Dimensions ....................................................................................................................... 41
4.2.1 Power feed/feedback unit ................................................................................................. 41
4.3 Electrical installation ......................................................................................................... 44
4.3.1 Operator’s safety .............................................................................................................. 44
4.3.2 Protection of the power feed/feedback unit ...................................................................... 44
4.3.3 Mains types / Mains characteristics ................................................................................... 45
4.3.4 pecifications of the used wires ......................................................................................... 45
4.3.5 Mains resp. Commutation chokes (Option) ........................................................................ 46
4.4 Connection ....................................................................................................................... 48
4.4.1 Power connection ............................................................................................................. 48
4.4.1.1 Wiring schematic .............................................................................................................. 50
4.4.2 Control wires .................................................................................................................... 52
4.4.3 Control functions .............................................................................................................. 52
4.5 Application example ......................................................................................................... 56
4.6 Installation of a power feed/feedback unit in a CE-typical drive system .............................. 57
4.6.1 Installation ....................................................................................................................... 58
4.6.2 Connection of a RFI-filter ................................................................................................... 59
4.8.3 Design of an EMC-conformal enclosure .............................................................................. 60
4.6.4 Remarks ........................................................................................................................... 61
4.6.5 Installation of control wires ............................................................................................... 62
5 Commissioning.................................................................................................................. 63
5.1 First powering up .............................................................................................................. 64
6 Configuration .................................................................................................................... 65
7 Troubleshooting and fault elimination ............................................................................... 68
7.1 LED-messages ................................................................................................................... 69
8 ervice .............................................................................................................................. 71
9 Appendix .......................................................................................................................... 72
9.1 Options ............................................................................................................................. 72
9.2 REVCON Product overview ................................................................................................ 74
9.3 Contact ............................................................................................................................. 75

Preface and general information
Operating instructions DC(S) 3
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
1Preface and general information
1.1 About these Operating Instructions
•These Operating Instructions help you to work properly on and with the power
feed/feedback units REVCON

DC(S). They contain safety information which
must be observed and information which are necessary for an undisturbed opera-
tion of the units together with the exploitation of all the advantages of the sys-
tem.
•All persons who work on and with the power feed/feedback units REVCON

DC(S), must have the Operation instructions available and observe all relevant
notes and instruction.
•The Operating Instructions must always be in a complete and perfectly readable
state.
1.1.1 Terminology used
Power feed/feedback unit
For „Power feed/feedback unit REVCON

DC(S)“ in the following the term
„Power feed/feedback unit“ is used.
Controller
For the frequency inverter which is used together with the power feed/feedback unit in
the following the term „Controller“ is used.
Drive system
For a drive system with power feed/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 DC(S)
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
1.1.2 Ordering code
DC (S) 45 - 400 - 1 - 0
Auxilary voltage ≙
≙≙
≙not required
Number of fans
Mains voltage e. g. 400 (3 x 400V AC)
Max. feedback power e. g. 45 (45 kW)
Prepared for the connection of an
harmonic filter (SKS)
Power feed/feedback unit
with controller DC-bus supply
1.2 Scope of delivery
•1 Power feed/feedback unit REVCON

DC(S)
•1 Operating Instructions
After receipt of delivery, check immediately whether the scope of supply matches with
the accompanying papers. We do not accept any liability for deficiencies claimed subse-
quently.
Claim
•Visible transport damage immediately to the forwarder.
•Visible deficiencies/incompleteness immediately to ELTROPLAN REVCON.

Preface and general information
Operating instructions DC(S) 5
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
1.3 Legal regulations
Labelling Nameplate CE-mark Manufacturer
Power feed/feedback units REVCON

DC(S) are unequivocally marked by the
contents of the nameplate.
Conforms the EC Low
Voltage Directive
ELTROPLAN-
REVCON
Edisonstraße 3
D-59199 Bönen
Patent rights The power feed/feedback unit REVCON



DC(S) 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 feed/feedback unit REVCON



DC(S)
•Must only be operated under the conditions prescribed in these instructions.
•Are components
– to feed/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 enclo-
sure.
•Comply with the requirements of he 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 feed/feedback unit REVCON



DC(S)
•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 feed/feedback units which have already been sup-
plied cannot be derived from information, illustrations and descriptions given in these Opera-
tion Instructions.
•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 feed/feedback unit
– operating errors
– improper working on and with the power feed/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 DC(S)
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
1.4 EC-Directives / Declaration of conformity
1.4.1 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
moment there are 21 EC-Directives for product sectors. The directives are or will be con-
verted 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.
1.4.2 What is the meaning of the CE-mark?
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 ob-
stacles for a CE-marked product.
Power feed/feedback units with CE-mark themselves are compliant with the Low-
Voltage Directive only. For observing the EMC Directive recommendations are made.
1.4.3 EC-Low-Voltage Directive
Modified by: CE – Marking Directive (93/68/EEC)
CE – Marking Directive (2006/95/EC)
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 to-
gether with customary environment conditions. Excluded is e.g. the use of electrical
equipment in explosive areas and electrical components of lifts for persons or mate-
rial.
•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 assets.

Preface and general information
Operating instructions DC(S) 7
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
EC-declaration of conformity
According to the EC-Low Voltage Directive (2006/95/EC)
The power feed/feedback units REVCON

DC(S) have been developed, designed and
manufactured in accordance with the above mentioned EC-Directive and in sole respon-
sibility of
ELTROPLAN-REVCON



Elektrotechnische Anlagen GmbH,
Edisonstraße 3, D-59199 Bönen
Considered standards:
Standard
DIN VDE 0160 5.88 +A1 / 4.89 +A2 / 10.88
PRDIN EN 50178
Class VDE 0160 / 11.94
Equipment of power installations with
electronic components
EN 61558-1/A1 Safety of power transformers, power supplies,
reactors and similar products
EN 60529 International protection rating
DIN EN 61000-6-3:2007 part 6.3 /
IEC 61000-6-3:2006
Generic standards – Emission standard for
residential, commercial, and light- industrial
environments
DIN EN 61000-6-4:2007 part 6.4 /
IEC 61000-6-4:2006
Generic standard for industrial environments
DIN VDE 0100 Guidelines for the design of
power installations

Preface and general information
8 Operating instructions DC(S)
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
1.4.4 Directive Machinery
EMC directive (89/336/EC)
Replaced by: EMC-directive (2006/42/EC)
The objective target describes article 4 (2004/108/EG), as follows:
Machinery means an assembly, fitted with or intended to be fitted with a drive system
other than directly applied human or animal effort, consisting of linked parts or compo-
nents, at least one of which moves, and which are joined together for a specific applica-
tion.
EG-declaration by the manufacturer
in terms of the EG-directive machines (2006/42/EG)
When installing the machines, commissioning (i.e. the staring of operation as directed)
the power feed/feedback unit is prohibited until it is proven that the machine corresponds
to the regulations of the EC Directive 2006/42/EG (Machinery Directive).
ELTROPLAN-REVCON Elektrotechnische Anlagen GmbH,
Edisonstraße 3, D-59199 Bönen

Preface and general information
Operating instructions DC(S) 9
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
1.4.5 EC-directive Electromagnetic compatibility
EMC directive (89/336/EC)
Replaced by: EMC-directive (2004/108/EC)
General:
The objective target describes article 4 (2004/108/EG), 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/EG)
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
regarding 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

afety information
10 Operating instructions DC(S)
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
2Safety information
Safety and application notes
for controller
(according to: Low voltage directive 2006/95/EG)
1. General
During operation, power feed/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 feed/feedback units are components which are designed for
installation in electrical systems or machinery.
When installing in machines, commissioning of the power
feed/feedback 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 Direc-
tive); 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 feed/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 feed/feedback unit. The technical data and
information on the connection conditions must be obtained from
the nameplate and the documentation and must be observed in all
cases.
3. Transport, Storage
Notes on transport, storage and appropriate handling must be ob-
served.
At non-observance any warranty expires.
The power feed/feedback unit has to be protected from inadmissi-
ble stress.
The transport is only valid in original packaging and in the thereon 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 feed/feedback units must be protected from inappro-
priate loads. Particularly during transport and handling, compo-
nents must not be bent and / or isolating distances must not be
changed. Touching of electronic components and contacts must be
avoided.
Power feed/feedback units contain electro-statically sensitive
components 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 feed/feedback units, the valid na-
tional regulations for the prevention of accidents (e.g. VBG 4)
must be observed. Before any installation or connection works,
the pant 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 feed/feedback unit with control-
lers 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
feed/feedback units with the CE-mark. The compliance with the
required limit values demanded by the EMC legislation is the re-
sponsibility of the manufacturer of the system or machine.
6. Operation
Systems where power feed/feedback units are installed, if appli-
cable, have to be equipped with additional monitoring and protec-
tive devices according to the valid safety regulations e.g. law on
technical tools, regulations for the prevention of accidents, etc. .
After disconnecting the power feed/feedback unit from the supply
voltage, live parts of the power feed/feedback unit and power
connections must not be touched immediately, because of possi-
bly 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 Operating Instructions must also be observed!

afety information
Operating instructions DC(S) 11
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 feed/feedback unit it is compliant with the state
of the art. The power feed/feedback unit generally allows safe operation.
•The statements of this manual describe the attributes of the products without guar-
anteeing them.
•The power feed/feedback unit may expose persons, the power feed/feedback units
itself and other material to danger, if
– Non-qualified personal works at and with the power feed/feedback unit.
– The power feed/feedback unit is used in opposite to its purpose.
•Power feed/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 accordance 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
understood analogously and have to be checked for transferability to each applica-
tion.
•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.

afety information
12 Operating instructions DC(S)
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
•Modifications of the power feed/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) dis-
mantled or if it is used in contradiction to our instructions.
•The constructor of the plant, who has to know the technical guidelines, bears the
responsibility for the correct selection and arrangement of the electrical compo-
nents.
•Putting into operation of the power feed/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 (cosϕ≤1) respectively on un-
choked compensation-units is not admissible. If this is done nevertheless, over-
voltage will occur (caused by oscillating currents), which may damage all con-
nected components, especially electronic units like controllers and power
feed/feedback units.
•To low powered or unloaded generators and to regulating transformers it is never
allowed to feed back power without a previous consultation of our application de-
partment. 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.

afety information
Operating instructions DC(S) 13
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
•An undisturbed operation of the power feed/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 feed/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 feed/feedback unit has been designed for a fixed connection to mains
only. Especially when using RFI-filter leakage current values> 3,5mA may occur.
The cross section of the earthing conductor must be al least 10mm² copper, or a
second conductor has to be connected in parallel (star shaped grounding network).
•If components are used, which have no electrical separated inputs / outputs it is
necessary to equalize the potentials (e.g. by a equalizing wire). If this is not ob-
served these components may be damaged by equalizing currents.
•When carrying out an insulations test in accordance with VDE0100/part 620 the
device has to be disconnected to avoid damage to the power semiconductors. This
procedure corresponds with the standard, as each device performs a high voltage
test in accordance with VDE 0160 (EN 50178) in the course of final testing after
manufacturing.

afety information
14 Operating instructions DC(S)
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
•A standard fault-current circuit breaker (sensitive on peak currents) is not al-
lowed to be used as the only protective measure when using controller and
power feed/feedback unit Caused by a DC-component in the mains current a
controller with 3-phase input voltage may prevent a fault-current circuit breaker
from tripping in case of an 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) further protective measures
in accordance with VDE 0100 part 410 are necessary. For a TN-network this
may be an over current protection, for a IT-network a 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 selecting 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.
Faults 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.

afety information
Operating instructions DC(S) 15
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 he drive system
– that the relevant manual is available for the personnel during any works.
– that non-qualified personnel is prohibited to work on the drive system.
Qualified personnel
Stop!
Qualified personnel are persons who are, based on their education, experience, instruction and
knowledge about standards and guidelines, regulations for the prevention of accidents and the
situation in the plant, authorized by the safety officer of the plant to execute the necessary
works and are able to recognize possible dangers and to avoid them.
(Definition of qualified personnel in accordance with IEC 364)
Usage as directed
Stop!
Power feed/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
electrical loads is not permitted and may damage the devices. The power feed/feedback unit
may only be connected to symmetrical networks. Non-observance may damage the devices.
STOP
STOP

afety information
16
2.3
Layout of the s
•
All safety notes have
-The icon
character
-
The signal word ch
-
The note describes
Signal word
Legend
Used pictogram
Warning of
injury to
persons
Imm
by c
War
mine
Dan
situa
War
surfa
Warning of
property dam-
ages
Harm
situa
Useful informa-
tion and appli-
cation notes
Info
2.4
Residual hazar
Operator’s safety
After mains disconnections, th
Protection of the device
Cyclic connection and disconn
overload the internal input cur
Allow at least 1 minute betwee
STOP
STOP
Operating
ins
ELTROPLAN -
REVCO
Elektrotechnische
e safety information
e a uniform layout:
terizes the type of danger.
characterizes the severity of danger.
es the danger and suggests how to avoid the da
ms
Signal words
minent danger
current
Danger!
Warns of an immediate
Consequences by disre
Death or severe injurie
arning
of a im-
inent danger
Warning!
Warns of a possible, ve
situation. Possible
con
Death or severe injurie
angerous
tuation
Caution!
Warns of a possible, da
Possible consequences
Minor or small injuries
arning of hot
rface
Warning!
Warns of touching a ho
Possible consequences
Burnings
armful
tuation
Stop!
Warns of possible prop
Possible consequences
Damage of the drive sy
ings
formation
Note!
Marks a generally, use
If you follow it, you m
handling of the system
ards
the power
terminals + and –
remain live for sev
nnection of the supply voltage at terminals L1,
urrent
limitation:
een disconnection and reconnection.
instructions
DC(S)
ON

e Anlagen GmbH
danger.
iately imminent Danger.
sregard:
ries
, very danger
onsequences by disregard:
ries
, dangerous situation.
es by disregard:
ies
hot
surface.
es by disregard:
roperty damages.
es by disregard:
system or its surroun
d-
seful note, tip.
make the
m easier
several minutes.
1, L2 und L3, may

afety information
Operating instructions DC(S) 17
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 feed/feedback unit are given. These hints are not entitled to complete-
ness.
Special features in comparison towards a chopper
Unlike a braking resistor a power feed/feedback device isn't a constant sink, but it's de-
pendent 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 de-
vice. In case of a short time voltage brake down the backward current has to raise corre-
spondingly to feed/feedback the demanded power-amount. Does the level of the supply
voltage sink for a longer time, the maximum feed/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.

afety information
18 Operating instructions DC(S)
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
Length of the DC-connection
The maximum inductivity of the DC-connection between output B6 bridge of the inverter
and the power feed/feedback device mustn't exceed a certain level, as this inductivity in-
ducts an additional voltage to the DC-bus, when the IGBT’s are switched off. To avoid an
overload to the components of the power feed/feedback unit, this additional voltage must
not exceed 100V. Resulting from this and other relevant characteristics of the power
feed/feedback unit (DC-capacity and absolute maximum value of the grid current) the
maximum inductivity
(
)
2
2
max
ˆ
i
UC
L
GL
∆⋅
=
can be calculated. This inductivity always has to
be higher or equal than the sum of the DC-bus inductivity of the frequency inverter and the
conductor inductivity of the DC connection. The DC-bus inductivity of the frequency in-
verter has only to be considered, if it is placed between the inverter B6 bridge and the
power feed-back unit. The cables, which are normally used for power applications, have an
inductance per unit length of about 0,6µH/m. If the values of the input capacitance C, the
during power feed back maximum allowed rise of the DC-voltage ∆U
GL
=100V, the top
level of the AC-current of the device (=2xI
eff
), the inductance per unit length L´ and the in-
ductance of the DC-bus ´choke L
ZKD
are known the maximum longitude of the conductors
can be calculated with the following equation:
L
L
Li
UC
l
ZKD
GL
′
−
′
⋅
∆⋅
=
2
2
max
ˆ

afety information
Operating instructions DC(S) 19
ELTROPLAN - REVCON

Elektrotechnische Anlagen GmbH
Operation on a generator
The usage of a power feed/feedback unit within an island network (e.g. with an
diesel generator) is possible, but there are restrictive regulations concerning the power lim-
its.
M
M
REVCON
R
0,4kV
100kVA
20kW
20kW
G
FC
Figure 2.6.1
Within a network that is assembled like in figure 2.6.1, there are two additional restric-
tions: First the power of the motor connected to the inverter must be lower than half of the
nominal power of the generator. Second the total amount of the power of the two other
loads must be more than double of the feed back 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
within the island network.
Danger!
Over voltages may cause serious damages to the connected frequency inverter and /or to the
power feed/feedback unit and to the other loads.