KEBCO COMBIVERT R4-S User manual

00.R4.S10-K150
BETRIEBSANLEITUNG INSTRUCTION MANUAL
COMBIVERT
Version 1.5
04/03

Vorbemerkung
Bevor Sie mit der Installation der R4-S-Rückspeiseeinheit beginnen, lesen Sie diese Anleitung bitte sorg-
fältig und beachten Sie unbedingt die darin enthaltenen Hinweise und Vorschläge.
Diese Betriebsanleitung muß jedem Anwender zugänglich gemacht werden.
Vor jeglichen Arbeiten muß sich der Anwender mit dem Gerät vertraut machen.Darunter fällt insbesonde-
re die Kenntnis und Beachtung der Sicherheits- und Warnhinweise. Lesen Sie deshalb unbedingt die
„Technische DokumentationTeil 1“.
Sicherheitsrelevante Texte sind kursiv ausgezeichnet.
Die im Kapitel „Sicherheitshinweise“ aufgeführten Hinweise sollten aus folgenden Gründen unbedingt
beachtet werden:
• Sicherheit für Mensch und Maschine
• Funktion und Störanfälligkeit
• TÜV-Abnahmen und Zertifizierung
• Garantie und Gewährleistung
Die in dieser Betriebsanleitung verwendeten Piktogramme haben folgende Bedeutung:
Remark
Before you start with the installation of the R4-S-regenerative unit, please read this manual carefully and
pay special attention to the notes and suggestions.
This manual must be made available to every user.
Before working with the unit the user must become familiar with it.This especially applies to the knowledge
andobservanceofthefollowingsafetyandwarningindications.Makesuretoread"TechnicalDocumentation
Part 1".
Safety indication text is written in italic type.
The instructions in this chapter must be absolutely observed for the following reasons:
• Safety for people and machines
• Function and susceptibility to faults
• Guarantee and warrenties
The pictograms used here have the following meaning:
Danger!
Warning!
Caution!
Attention!
Essential
Measure !
Information!
Comment!
Tip!
Gefahr!
Warnung!
Vorsicht!
Achtung!
Unbedingt
beachten!
Information!
Hilfe!
Tip!
GB
Page GB - 3 ........GB - 50
D
Seite D - 3..............D - 50

GB - 3
Table of Contents
Table of Contents
1 Safety Instructions...........................................................................................6
2 Product Description.........................................................................................9
2.1 Use as instucted..............................................................................................9
2.2 Field Conditions ..............................................................................................9
2.3 Device Identification ........................................................................................9
2.4 Technical Data...............................................................................................10
3 Transport and Storage...................................................................................11
4 Installation .....................................................................................................11
4.1 Installation of the Unit....................................................................................12
4.1.1 Dimensions ...................................................................................................12
4.1.2 Installation Instructions..................................................................................13
4.2 Connection of the Power Circuit....................................................................14
4.2.1 Standard Connection ....................................................................................15
4.2.2 Parallel Operation..........................................................................................16
4.2.3 R4-S Regenerative unit and Supply Unit.......................................................17
4.2.4 R4-S as Combination with Inverter................................................................18
4.2.5 Hints for EMV-Conform-Wiring ......................................................................19
4.3 Connection of the Control .............................................................................22
4.3.1 Terminal Assignment X1 ...............................................................................23
5 Operation of the Unit .....................................................................................24
5.1 Initialisation ...................................................................................................24
5.2 Operation during the Unit is running .............................................................24
5.2.1 Operation with Interface-Operator .................................................................25
5.2.2 Operation with PC and System Software COMBIVIS ...................................26
5.3 Keyboard Operation ......................................................................................26
5.3.1 Standard Operation .......................................................................................26
5.3.1.1 Display of the Parameter Identification..........................................................26
5.3.1.2 Display of the Parameter Value .....................................................................27
5.3.2 Special Displays ............................................................................................28

GB - 4
Table of Contents
5.4 Parameter......................................................................................................28
5.4.1 Parameter Summary .....................................................................................28
5.4.2 Parameter Description...................................................................................29
5.4.2.1 Run (ru) – Parameter ....................................................................................29
5.4.2.2 Protection (Pn) – Parameter..........................................................................31
5.4.2.3 Control (CS) – Parameter..............................................................................33
5.4.2.4 User Definition (ud) – Parameter...................................................................34
5.4.2.5 Free-programmable (Fr) – Parameter............................................................35
5.4.2.6 Analog I/O (An) – Parameter.........................................................................36
5.4.2.7 Digital Input (di) – Parameter ........................................................................37
5.4.2.8 Digital Output (do) – Parameter.....................................................................39
5.4.2.9 Level (LE) – Parameter ................................................................................41
5.4.2.10 Information (In) – Parameter .........................................................................42
6 Servicing .......................................................................................................44
7 Out of Service, Demounting and Waste Disposal .........................................44
8 Fault Diagnosis..............................................................................................45
9 Register.........................................................................................................46
10 Mark of Conformity ........................................................................................47
11 Short Description ..........................................................................................49

GB - 5
Parameter-Annex
Parameter-Annex
Parameter Summary .....................................................................................26
ru Run................................................................................................................27
Parameter Description – ru. 0........................................................................27
Parameter Description – ru. 7/8/11/12/14/15.................................................28
Parameter Description – ru. 16/17/24/29/52..................................................29
Pn Protection ......................................................................................................30
Parameter Description – Pn. 0/1/16/59 .........................................................30
CS Control...........................................................................................................31
Parameter Description – CS.27/35 ...............................................................31
ud User Definition...............................................................................................32
Parameter Description – ud. 0/1/2/3/4/6........................................................32
Parameter Description – ud. 7.......................................................................33
Fr Free-programmable.......................................................................................33
Parameter Description – Fr. 0/1.....................................................................33
An Analog I/O .....................................................................................................34
Parameter Description – An. 14/15/16/17 .....................................................34
di Digital Input ...................................................................................................35
Parameter Description – di. 0/1 .....................................................................35
Parameter Description – di. 2/3/15/16 ...........................................................36
do Digital Output ................................................................................................37
Parameter Description – do. 0 .......................................................................37
Parameter Description – do. 1/2/3/9/10/11/17/18/19/25 ................................38
LE Level..............................................................................................................39
Parameter Description – LE. 8/9/10/12/13/14/24/25/26/32/38 ......................39
In Information ....................................................................................................40
Parameter Description – In. 0/1/4..................................................................40
Parameter Description – In. 5/6/7/8/9/10/11/12/13/40/41/42/43/44...............41

GB - 6
1 Safety Instructions
General
R4-S-regenerative units contain dangerous voltages which can cause death or
serious injury. Care should be taken to ensure correct and safe operation to
minimise risk to personal and equipment.
If connected inverter at the R4-S-regenerative unit are running regenerative,
andthe turn-offtime oftheR4-S-regenerativeunit (parameterPn.59) isadjusted
> 0 s, dangerous high voltage will be supplied to the terminals of the R4-S-
regenrative unit during mains failure.Therefore a dangerous high voltage for the
time of Pn.59 can still be in the system, even after the power supply system is
switched off.
Before any working with the unit, control the safe isolation from supply. (with
measurements in the unit).
All work from the transport, to installation and start-up as well as maintenance
may only be done by qualified personnel (IEC 364 and/or CENELEC HD 384
(VDE 0100) and note national safety regulations). According to this manual
qualified staff means:
- those who are able to recognise and judge the possible dangers based on
their technical training and experience
- those with knowledge of the relevant standards and who are familiar with the
field of power trasmission (EN 50178 (VDE 0100VDE 0160, EN 60204 (VDE
0113)) as well as the approporiate regulations for your area.
Use as directed
R4-S-regenerativeunits serves forteeding backenergy fromthe DC-bus circuits
of frequency inverters.
Operation with R4-S-regenerative units is only allowed in connection with
frequency inverters.Connection of other electrical consumer of the R4-S-rege-
nerative units is not allowed and the unit can be destroyed .
The R4-S-regenerative unit must not be started until it is determined that the
installation complies with 89/392/EEC (machine directive) as well as the EMC-
directive89/336/EEC.
The regenerative units meet the requirements of the Low-Voltage Directive 73/
231/EEC. The harmonized standards of the series EN 50178
(VDE 0160) in connection with EN 60439-1 (VDE 0660 Part 500) and
EN 60146 (VDE 0558) were used.
Transport and Storage
The R4-S-regenerative units must be protected against physical damage during
transport, installation and use.Components and covers must not bent or moved
as this may affect insulation distances.
Danger to Life
Only Qualified
Personnel
Observe
Standards
Protect
Against
Accidental
Contact
Safety Instructions

GB - 7
Prevent
Disturbances
Only Fixed
Connection
Insulation
Measurement
Different
Earth-
Potentials
Voltage with
Respect to
Ground
Note
Capacitor
Discharge
Time
The equipment must not be switched on if it is damaged as it may no longer
comply with mandatory standards.This equipment contains electrostatic sensi-
tive devices which may be damaged by careless handling.
Installation
Makesurethatduringinstallationthereisenoughminimumclearanceandenough
cooling. Climatic conditions must be observed in accordance with EN 50178.
Electrical Connection
Before any installation and connection work, the system must be switched off
and secured.
After clearing the R4-S-regenerative unit the DC-bus circuit capacitors are still
charged with high voltage for a short period of time.The unit can be worked on
again, after it has been switched off for 5 minutes.
Connection of the R4-S-regenerative unit is only permissible on symmetrical
networks with a maximum line voltage (L1,L2,L3) with respect to earth (N/PE) of
290V.
The R4-S-regenerative unit is only designed for a fixed connection, because
when using filters a leakage current >3,5 mA can occur. Protective conductor
cross section must be at least 10mm
2
copper or a 2nd conductor must be
electrically parallel to the protective conductor on separate terminals.
When doing an insulation measurement in accordance with EN 60204 (VDE
0113) the power semiconductor of the unit must be disconnected because of
the danger of destruction. This is permissble in compliance with the standard,
since all inverters are given a high voltage test in the end control at KEB in
accordance with EN 50178 (VDE 0160).
When using components without isolated inputs/outputs, it is necessary that
equipotential bonding exists between the components to be connected (e.g.
through the equalizer). Disregard can cause destruction of the components by
the equalizing currents.
Atrouble-freeand safeoperationoftheR4-S-regenerativeunitisonlyguaranteed
when the connection instructions below are strictly followed.Incorrect operation
or damage may result from incorrect installation.
• Note mains voltage and rated motor voltage!
• Install power cables and control cables separtely (> 15 cm)!
• Use shielded/twisted control lines.Connect shield to PE at R4-S-regenerative
unit only!
• Onlyusesuitablecircuit elements tocontrolthe logic andanaloginputs, whose
contacts are rated for extra-low-voltages!
• Makesurehousing ofthe R4-S-regenerative unitiswellgrounded.The screen
of the cable between the inverter and the motor must be directly and securely
attached to both the inverter PE terminal and the motor ground terminal.
Remove paint finish where necessary!
• Groundthe cabinetor the systemearthstar pointwith theshortest connection
to mains earth (avoid earth loops).
If connecting of additional transformers is necessary, their impedance must
be selected as small as possible (short circuit voltage max. 2,5%)!
Safety Instructions

GB - 8
Automatic
Restart
Conditionally
Short-Circuit
Proof
RCD
(FI-Protective
Switch)
Ifpersonnel protectionisrequired during installation ofthe systemthefrequency
inverters must be protected according to EN 50178 (VDE 0160):
- 3-phaseinverters byRCMA’swith separation(used privileged) orRCD’s type
B (all-current sensitive FI’s)
The tripping current should be 300mA or more, in order to avoid a premature
triggering of the inverter by discharge currents (about 200mA).
Dependent on the load, the length of the motor cable and the use of a radio
interference filter, substantially higher leakage current can occur.
Theconnectioninstructions fromthemanufacturer and thevalidlocalreqirements
must be observed.
Dependent on the available mains form (TN, IT,TT) further protective measures
arenecessaryinaccordancewithVDEPart410(Part 4;Chapter41).Forexample,
with TN-mains this protection is made with overcurrent protective devices.With
IT-mains it is insulation monitoring with a pulse-code measuring method. A
protective separation can be used with all mains forms as long as the required
power and cable lengths permit this.
Operating Instructions
Before starting, all respective enclosures must be secured again, as well as the
terminals and screws must be checked to see that they are securely fixed.
The R4-S-regenerative unit may be set, dependent on type, to restart
automaticallyfollowinga fault stoppage(e.g.UndervoltageError),when thefault
conditions clear. System design must take this into account, if appropriate, and
additional monitoring or protective features added where necessary.
The R4-S-regenerative units are conditionelly short-circuit proof (EN 50178/
VDE 0160).Afterresettingtheinternalprotectiondevices,thefunction asdirected
is guaranteed. Exceptions:
• If an earth-leakage fault or short-circuit often occurs at the output, this can
lead to a defect in the unit.
• Ifa short-circuit occurs during regenerative operation,thiscan lead toa defect
in the unit.
Safety Instructions

GB - 9
18.R4.S0G–3401
Plug-in station option
0: without plug-in station assignment
1-9, A-Z: Variation
Clock frequency
0: Synchronous to mains
Voltage
2: 200V
4: 400 V
Connection
3: 3-ph
4, A: informations about special/customer versions
Housing Size G, R
not defined
Type control card
S: Standard (block form feedback)
Type of unit R4
Size of unit
2 Product Description
2.1 Us as instucted
The R4-S-regenerative unit is qualified for energy feedback in connection with
nearly all standard frequency inverters of 200V/ 400 V-Class.
These should be used when motors are connected to frequency inverters and
because of the special conditions operate in a regenerative mode and a braking
module with braking resistor converts energie in unused heat.
2.2 Field Conditions
The R4-S-regenerative unit can be used if the following conditions are given:
• 3-phase - 180-260V/ 300–504 V -mains/40–60 Hz
• frequency inverter driven three-phase induction motors
• Inverter with accessable DC-bus link
• partial or permanent regenerative operating
2.3 Device identification
Product Description

GB - 10
Voltage class 200V 400V
Part number 12.R4.S0G.3201 15.R4.S0G.3201 14.R4.S0G-3401 18.R4.S0G-3401 22.R4.S0R-3401
Mains voltage Umain 180 . . . 260V AC +/-0V 300 . . . 504V AC +/-0V
Mains frequence fmain 40 . . . 60 Hz ±5%
Phases 3
Recovering Operation)
Reg. Nominal power CE/UL SN
PN
7 kVA
5,5 kW 15,5kVA/12,5kVA 13,5kW / 11kW 13 kVA 11 kW 31kVA / 25 kVA 27kW / 21,5kW 83 kVA 70 kW
Max. reg. Power Smax
Pmax
9,5 kVA
8 kW 22,5 kVA 19,5 kW 19 kVA 16,5 kW 45 kVA 39 kW 120 kVA 100 kW
Reg. Nom. Current (100%ED) CE/UL IN19 A 45A / 36 A 19 A 45A / 36 A 120 A
IDC 23 A 55A / 40 A 23 A 55A / 40 A 145 A
Short time current Imax 27 A 65 A 27 A 65 A 173 A
70% duty cycle/cycle time 85s IDC ma
x
34 A 80 A 34 A 80 A 210 A
Peak current OC IOC 31 A 72 A 31 A 72 A 192 A
Supply Operation
DC-Bus load current (100%ED)
CE/UL IDC 43 A / 40 A 57 A / 40 A 43 A / 40 A 57 A / 40 A 150 A
max. DC-Bus load current
(70% duty cycle / cycle time 85s) IDCmax 49 A 65 A 49 A 65 A 170 A
Control connections
Voltage range to supplythe digital inputs Udig 13 . . . 30 V DC
internal voltage supply Uout 18 V DC
max. Output current Iout 300 mA
external voltage supply Uin 24 V DC / -10%, +25%
Limiting continous current ImR 1A
max. switching voltage UmR 30V DC
Installation
Operating temperature TB-10 . . . 45 °C
Storage temperature TS-25 . . . 70 °C
Rel. humidity (without
condensation) max. 95%
Dimensions A x B x C mm 170 x 340 x 255 340x520x350
Mains line cross section
for UL 4mm2
AWG 12 10mm2 AWG 8 4mm2 AWG 12 10mm2 AWG 8 50mm2 AWG 1
DC- Bus line cross section
for UL 10mm2
AWG 8 16mm2 AWG 6 10mm2 AWG 8 16mm2 AWG 6 70mm2 AWG 1/0
ext. Input fuse
(class gL) for UL 25 A 50 A 25 A 50 A 160 A
ext. DC-Bus fuse (class gR) for UL 14.U4.2R4-3W00
50 A 18.U4.2R4-3W00 100 A 14.U4.2R4-3W00 50 A 18.U4.2R4-3W00 100 A 22.U4.2R4-3W00 2x 110 A
Leakage current ca.10 mA ca. 30 mA
Model / protective system IP 20
Coeffincient
η
> 98 %
Commutating choke ext. 100%
duty choke100%ED 14.DR.R08-3051 18.DR.R08-1351 14.DR.R08-3051 18.DR.R08-1351 22.DR.R08-4841
Commutating choke ext 90%
duty cycle / cycle time 60min 18.DR.R09-0360 18.DR.R09-0360 
HF Filter (R4) ext. 1 Unit
2 Units parallel 14.R4.T60-1019 18.R4.T60-1019
21.R4.T60-1019 14.R4.T60-1019 18.R4.T60-1019 21.R4.T60-1019 22.R4.T60-1019 25.R4.T60-1019
2.4 Technical Data
Product Description

GB - 11
Only Qualified
Personnel
Danger to Life
Observe
Standards
Installation
3 Transport and Storage
The storage of the R4-S-regenerative unit must be done in its original packing.
Protect the R4-S regenerative unit against moisture and cold and warm effects.
The transport over long distances must be done in the original packing.Protect
the R4-S-feedback against impact load.
Please note the identifying marking at the packing!
Afterremovingofthe packing fortheinstallationthe R4-S-regenerativeunitmust
stay on a steady base.
4 Installation
Installationand start-upofthe R4-S-regenerative unit isonly allowedbyqualified
personnel. Safe and trouble-free operation is only possible with the following
standards: DIN VDE 0100, DIN VDE 0113, DIN VDE 0160, DIN VDE 0875 and
other relevant local conditions. The unit must be earthed via the protective
conductor. The power terminals L1_2, L2_2 and L3_2 and the terminals for
synchronization (L1, L2, L3) must be executed with shielded lines.
Attention, the terminals L1, L2, L3, and -IN, -OUT, +OUT, +IN and L1_2, L2_2,
L3_2 do have high dangerous voltages when they are ON!
All installation and connection work must be done in a off circuit status!
A view minutes after switching off the D.C.-bus of the R4-S-regenerative unit
has a high voltage.Working at the unit is only allowed after 5 minutes.

GB - 12
retlifnoisserppusecnerefretnioidaR epyTABCFGHthgieW
9101-06T.4R.41080430025,605023gk6.ac
9101-06T.4R.810210430325,6001023gk5,8.ac
9101-06T.4R.120410644325,6001054gk61.ac
9101-06T.4R.2207259603161032556gk92.ac
tseuqerno9101-06T.4R.52
H
C
B
A
H
Ø F
A
G
Ø F
Housing A B C F G H Weight
G 170 340 255 7 150 330 10 kg
R 340 520 355 10 300 495 28 kg
C
BH
ØF
G
A
4.1 Installation of the Unit
4.1.1 Measurements
Installation

GB - 13
ekohcgnitatummoC epyTABCFGHthgieW
1503-80R.RD.410218810915187071gk4,9
1531-80R.RD.8108106203251221081gk8,32
0630-90R.RD.81075715512155031gk4,4
1484-80R.RD.2250205300351031042gk5,35
ØFB
H G
C A
15 cm
15 cm
3 cm
4.1.2 Installation Instructions
The R4-S-regenerative unit is designed for a installation in a vertical control
cabinet.
15cmmin.distanceatairinletandair
outlet to the next subassembly
R4-S-regenerative units in
G-housing can be mounted side to
side without min. clearance.
Thesameappliestocombinationwith
frequency inverter in G-housing.

GB - 14
L1 L2 L3
OH OH
-IN- OUT + OUT +INL1 _2 L2 _2 L3 _2
Terminal strip housing G
Terminal strip housing R
-IN
L1
-OUT +OUT +IN
OHOH
L2 L3
L1_2 L2_2 L3_2
L1, L2, L3 Synchronization
OH, OH Connection temperature sensor for
commutating choke
-IN, +IN Input DC-bus
-OUT, +OUT In- / Output DC-bus
L1_2, L2_2, L3_2 3-phase mains connection
PE, Connection for shielding/earthing
Terminal
marking
Installation
Bridge, when there
is no monitoring Thermo contact (Break contact) Temperature detector (PTC) Operate resistor 1,65...4 kOhm
Resetting resistor 0,75...1,65 kOhm
(according to VDE 0660 part 302)
Theterminalmarkings-U
ZK
and+U
ZK
areusedinthefollowingconnectionpictures.
They show the different terminal markings of the DC-bus, according to the
respective KEB inverter type and inverter of other manufacturers.
Temperature Monitoring Commutating Chokes
4.2 Connection of the power circuit

GB - 15
R4
-IN -OUT +OUT +IN
L1_2
PE
L1
L2
L3
L2_2 L3_2 PE
L1 L2 L3
FU
+U
ZK
-U
ZK
L1 L2 L3
UV W
HF-
Filter
(R4)
PE
M
3~
3
L1
L2
L3
L1
L2
L3
L3
L3
L2
L2
L1
L1
Installation
4.2.1 Standard Connection
TheR4-S-regenerativeunit mustbe protected onthethree input lines(utilization
category gL) and in the DC-bus with semiconductor fuses (utilization category
gR).The values of the fuses are described in the table 2.4 ‘technical data’.The
semiconductor fuses are sized for a protection of the semiconductors but they
don’t have the function to protect conductor cross-sections. To avoid invalid,
highcommutationnotches, acommutating choke(Art.No:see2.4Technicaldata)
must be connected on line side. The connection of the synchronization lines
must be executed via back-up fuses with max. 4A (according to VDE power
protection)withtwistedcable0,75mm2.Whenusing a KEBHF-Filter(R4)(Art.No:
see 2.4 Technical data) the protection for synchronization connections are not
required.
Synchronisation: L1, L2, L3 -mains with L1, L2, L3 the R4-S-regenerative unit;
Pay attention to correct phase sequence assignment of L1, L2, L3 and L1_2,
L2_2, L3_2 !
Inom. inverter < Inom. feedback unit

GB - 16
R4
-IN -OUT +OUT +IN
L1_2
PE
L2_2 L3_2 PE
L1 L2 L3
L1
L2
L3
FU
+UZK -UZK
L1 L2 L3
UV W
HF-
Filter
(R4)
PE
M
3~
3
L1
L2
L3
FU
Filter
L1
L2
L3
L3
L3
L2
L2
L1
L1
L1
L2
L3
PE
L1
L2
L3
HF-
Filter
(R4)
3
L1
L2
L3
L1
L2
L3
L3
L3
L2
L2
L1
L1
R4
-IN -OUT +OUT +IN
L1_2 L2_2 L3_2 PE
L1 L2 L3
R4
-IN -OUT +OUT +IN
L1_2 L2_2 L3_2 PE
L1 L2 L3
FU
+U
ZK
-U
ZK
L1 L2 L3
UV W
PE
M
3~
Inom. inverter > Inom.feedback
4.2.2 Parallel Operation
If the expected feedback power is higher than the rated power of a R4-S-rege-
nerative unit, the feedback power can be increased by cascading of two or more
R4-S-regenerative units. In this constellation the feedback power is increased
by the value of the rated power of the additional R4-S-regenerative units.
During parallel operation an owncommutatingchokemust be connectedto every
R4-S-regenerative unit.The fuses must be set in front of the terminal connection
of the DC-bus for protection against the short-circuit current (see chapter 4.3
Connectionofthe control -paralleloperation of several R4-S-regenerative units).
Inom. inverter < ∑ Inom. feedback
Installation

GB - 17
Prevent
Disturbances
R4
-IN -OUT +OUT +IN
L1_2 L2_2 L3_2 PE
DC-FU
++ -- U V W
PE
DC-FU
++ -- U V W
PE
M
3~
M
3~
L1 L2 L3
PE
L1
L2
L3
HF-
Filter
(R4)
3
L1
L2
L3
L1
L2
L3
L3
L3
L2
L2
L1
L1
Terminals
„++“ / „--“
4.2.3 R4-S as feedback and supply unit
Additionally to the feedback function the R4-S-regenerative unit can be used as
a B6-full wave rectifier. In this case the R4-S-regenerative unit serves as a DC-
supply for one or several frequency inverters which are running on a common
DC-bus. Pay attention to the following notes:
•
The connected frequency inverters must be DC-frequency inverters, that
meanstheymusthaveaprechargeunit (loading shunt inDC-bus).Iftheinverter
has not a precharge unit in the DC-bus, then the R4-S-regenerative unit will
be destroyed.
• Only use the mains commutating choke described by KEB.
• The average value of the taken direct current must not exceed the max.value
of the direct current (I
DC MAX
)!
• In case that the R4-S-regenerative unit is used as regenerative and supply
unit, a parallel operation of the R4-S-regenerative unit is not possible!
• If there are several frequency inverters connected to the R4-S Feedback unit,
the maximum permissible DC-link capacities of all connected inverters during
supply operation must be observed! (see table)
Inom.
feedback >∑ Inom.inverter
Installation
Generally there must be a charging current limit at the input of DC frequency
inverter.The terminal markings "++" and "--" are valid for KEB inverter and there
can be customer specific variations.
Voltage class 200V 400V
Part number 12.R4.S0G.3201 15.R4.S0G.3201 14.R4.S0G-3401 18.R4.S0G-3401 22.R4.S0R-3401
max. perm. add. DC-link capacity µF 3.800 3.500 1.300 1.000 5.000

GB - 18
L1
L2
L3
++
– –
This connection is made for KEB frequency inverters, when the d.c.terminals
are assigned with ‘++’ and ‘– –’ .
4.2.4 R4-S as Combination with Inverter
Connection DC-bus
The R4-S regenerative unit can be combined with frequency inverters with DC-
bus connection (see picture 1).In this case the frequency inverter must be con-
nected to the supply via a separate choke (4 % UK) (see picture 2).
K1 (or mains switch)
R4
-IN -OUT +OUT +IN
L1_2
PE
L1
L2
L3
L2_2 L3_2 PE
L1 L2 L3
FU
 + +
L1 L2 L3
UV W
HF-
Filter
(R4)
PE
M
3
~
3
L1
L2
L3
L1
L2
L3
L3
L3
L2
L2
L1
L1
UZK
B6-
Rectifier IGBT’s

GB - 19
4.2.5 Hints for EMC ConformWiring
• Install the cabinet or system correctly
• In order to prevent noise inter ferences
a) Mains / supply lines,
b) Motor lines from inverters and servo controllers
c) Control and data lines (low voltage levels < 48 V), must have a clearance
of at least 15 cm when intalled.
• In order to maintain low-resistance high frequency connections, earthing and
shielding, as well as other metallic connections (e.g.mounting plate, installed
units) must be in metal-to-metal contact with the mounting plate, with a large
contact surface. Use earthing and equipotential lines with a section as large
as possible (min.10 mm²) or use thick earthing strips.
• Ifexternalinterferencesuppressionfiltersareused,thenthesemustbeinstalled
as close as possible to (<30cmfrom) the interference source and in metal-to-
metal contact with the mounting plate, with a large contact surface.
• Always equip inductive control elements (contactors, relays etc.) with
suppressors such as varistors, RC-elements or damping diodes.
• All connections must be kept as short as possible and as close as possible to
the earth, as free lines work as active and passive antennas.
• Shielded cables should be used if the connecting lines between interference
suppression filter and commutating choke or commutating choke and R4-S-
regenerative unit are longer than 30 cm.The maximum length of this lines is
1 m.
• Keep connection cables straight (do not bundle). Connect all non-assigned
wire on both sides to the protective conductor.
• The flow and return circuit must be twisted when the lines are not shielded, in
order to dampen common-mode noise.
See the following pages for a correct intallation and wiring of an EMC control
cabinet.
Installation

GB - 20
3
4
10
9
13
1
2
9a
13a
57
8
6
14
15 cm
15 cm
1esufsniaM
2rotcatnocniaM
3ecnerefretnioidaR retlifnoisserppus
4ekohcgnitatummoC
5tinukcabdeef-S-4R
6egatlovsub-CD
7retrevniycneuqerF
8rotoMelbat
9sietalpgnitroppuS )EP(tniopratsnommoc
a9)EP(tniopratS egnarlortnocrof
01gnihtraelaitnetopiuqE
31noitcennocsniaM
a31noitcennocsniaM lortnoCtrap
41senillortnoC egralcatnocecafrust
otgnisuoh
The installation diagram shows the optimum arrangement solution of the units.
This diagram should be followed if the dimensions of the control cabinet allowed
this .
Installation
Installation of an EMC Conform Cabinet
Power partControl part