Lenze 482, 481, 485, 484, 483 Operating Instructions Manual

EDB480_E/GB
00459155

L

Antriebstechni

k

Operating Instructions

Speed controllers
480 series

These operating instructions are valid for controllers with the nameplate designation

481 E 3A
482 E 3A
483 E 3A
484 E 3A
485 E 3A

Controller type

Chassis type

Hardware version + index

Edition of: 05/1996

revised: 10/2002

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How to use this manual ...

To locate information on specific topics, simply refer to the table of
contents at the beginning and to the index at the end of this
manual.

The manual uses a series of different symbols to provide quick
reference and to highlight important items.

This symbol refers to items of information intended to facilitate
operation.

Notes which should be observed to avoid possible damage to or
destruction of equipment.

Notes which should be observed to avoid health risks to the
operating personnel.

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Safety and application notes

for drive controllers

(according to: Low Voltage Directive 73/23/EWG)

1. General

During operation, drive controllers may have, according to
their type of protection, live, bare, in some cases also
movable or rotating parts as well as hot surfaces.

For non-authorized removal of the required cover, for
inappropriate use, for incorrect installation or operation, there
is the risk of severe personal injury or damage to material
assets.

Further information can be obtained from the documentation.

All operations concerning transport, installation, and
commissioning 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 regulations for the prevention of accidents must
be observed).

Qualified skilled personnel according to these basic safety
information are persons who are familiar with the erection,
assembly, commissiong, and operation of the product and
who have the qualifications necessary for their occupation.

2. Application as directed

Drive controllers are components which are designed for
installation into electrical systems or machinery.

When installing into machines, commissioning of the drive
controllers (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 89/392/EWG (Machinery
Directive); EN 60204 must be observed.

Commissioning (i.e. starting of operation as directed) is only
allowed when there is compliance with the EMC Directive
(89/336/EWG).

The drive controllers meet the requirements of the Low
Voltage Directive 73/23/EWG. 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 applicable to drive controllers.

The technical data and information about the connection
conditions must be obtained from the nameplate and must be
observed in all cases.

3. Transport, storage

Notes on transport, storage and appropriate handling must be
observed.

Climatic conditions must be observed according to prEN

50178.

4. Erection

The devices must erected and cooled according to the
regulations of the corresponding documentation.

The drive controllers must be protected from inappropriate
loads. Particularly during transport and handling, components
must not be bent and/or insulation distances must not be
modified. Touching of electronic components and contacts
must be avoided.

Drive controllers contain electrostatically sensitive
components which can easily be damaged by inappropriate
handling. Electrical components must not be damaged or
destroyed mechanically (health risks are possible!).

5. Electrical connection

When working on live drive controllers the valid national
regulations for the prevention of accidents (e.g. VBG 4) must
be observed.

The electrical installation must be carried out according to the
appropriate regulations (e.g. cable cross-sections, fuses, PE
connection). More detained information is included in the
documentation.

Notes concerning the installation in compliance with EMC ­like screening, grounding, arrangement of filters and laying of
cables - are included in the documentation of the drive
controllers. These notes must also be observed in all cases
for drive controllers with the CE mark. The compliance with
the required limit values demanded by the EMC legislation is
the responsibility of the manufacturer of the system or
machine.

6. Operation

Systems where drive controllers are installed must be
equipped, if necessary, 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. Modifications of the drive controllers and the
operating software are prohibited.

After disconnecting the drive controllers from the supply
voltage, live parts of the controller and power connections
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 servicing

The manufacturer´s documentation must be observed.

This safety information must be
preserved!
The product-specific safety and application notes in these
operating instructions must also be observed!

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Contents

1 Features of the 480 series of controllers 5

2 Technical data 6

2.1 Controller-specific data 6

2.2 Dimensions 7

2.3 Scope of supply 8

2.4 Application as directed 8

3 Accessories 9

4 Installation 13

4.1 Installation 13

4.2 Connection 13

4.2.1 Installation corresponding to EMC 15

4.2.2 CE-typical drive system 16

4.3 Connection diagram 19

4.4 Special field voltages 20

4.4.1 Field voltage VF = 0.9 x VL1,

L2

20

4.4.2 Field connection via autotransformer 20

4.4.3 Field connection via transformer 20

4.5 Mains voltage V3L < 340 V 21

4.6 Additional terminals 22

4.7 Replacing the fuses 22

5 Commissioning 23

5.1 Setting the current limit 23

5.2 Armature voltage control with "I x R compensation" 24

5.3 Speed control with tacho feedback 25

6 Switching operation 26

6.1 Controller enable 26

6.2 Controller inhibit 26

Index 27

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1 Features of the 480 series of controllers

The 480 series of controllers comprises five fully-controlled two­quadant controllers with output powers from 10 kW to 115 kW. The
most important features include:

• Compact controllers with isolated heatsink

• High response thanks to six-pulse three-phase bridge and

leakage current adaptation

• Operation with tacho or armature voltage feedback with "I · R
compensation"

• Isolation of control electronics and power stage when tacho
feedback is used

• Self-synchronization of the phase shifter for

50...60-Hz mains

• Mains connection independent of the phase sequence

• High interference margin due to integrated synchronizing filter

• Burst-gate thyristor control in the power stage

• Reliable operation also for mains voltage fluctuations and short-

term mains failures due to static and dynamic voltage
monitoring

• Display of the operating states using LEDs

• Option board can be retrofitted:

− Set-value integrator 2003

− Winding calculator 1071

• Compliance with the CE directives for the erection of a CE

conform drive system

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2 Technical data

2.1 Controller-specific data

Type 481 482 483 484 485

Output power Pel [kW] 10.5 23 46 92 115
Mains frequency f [Hz] 50...60
Mains voltage V3L [V] 340...460
Armature voltage V

A

460 V for V3L = 400 V (1.15 x V3L)
Armature current IA [A] 23 50 100 200 250
Field voltage V

F

0.9 x V

L1, L2 (N)

Max. field current I

F [A]

810
Rated master voltage VLN [V] 10...180
Rated tacho voltage VTN [V] 10...180
Operating ambient

temperature

Tu [°C] 0...45

Set-value
potentiometer
Type

R

10kΩ /1W

lin.

ER00322194

Field fuse
Type

F 101 FF16A/500V

EFSFF0160AWB
Electronics fuse

Type

F 102
F 103
F 104

F1A/450V

5 x 25

EFSF_0010AVF
Weight approx. m [kg] 4.5 5.5 8.5 10.5 13
Chassis type E 33.481__E 33.482__E 33.483__E 33.484__E 33.485__E

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2.2 Dimensions

Controllers of the 480 series without protective cover:

A

L3

L2

PE

B

L1

∅

7mm

d

b

c

a

e

6

7

2

3

4

R812

1

5

Explanations

➀

Connecting terminals for field and electronics

➁

Trimmers n

max

, U

Leit grob

, U

Leit fein

, n

min

, Vp, I x R, I

max

➂

Measuring point "M1"

➃

Spacer "M3" for the attachment of the option boards

➄

LEDs ±VCC, RSP, I

max

➅

Spacer "M4" for the fixing of the protective cover

➆

Jumper "BR1"

R812

2.2–kΩ resistor on soldering points

F101 Field fuse
F102

F103
F104

Electronics fuses

L1, L2, L3, PE
A, B

Power connections

Type a

[mm]

b

[mm]

c

[mm]

d

[mm]

e

[mm]

1)

481

240 220 225 200 175

482

240 300 225 280 175

483

285 380 271 235 200

484

285 465 271 310 200

485

285 535 271 380 230

1)

The dimension (e) is the installation height of the base controller including
protective cover.

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2.3 Scope of supply

The scope of supply includes:

• the controller 48x_E

• set-value potentiometer 10 kΩ

• the operating instructions

2.4 Application as directed

• The controllers of the types 48x are electrical equipment for the

installation into control cabinets of electrical systems or
machinery.

• The controllers of the types 48x are designed as components

for the control of speed-variable drives with separately-excited
DC motors or for the assembly with other components to form a
machine or system.

• Drive systems with drive controllers 48x which are installed

according to the definition of a CE-typical drive system (see chapter

4.2.2), correspond to the EC EMC Directive and the standards
mentioned below.

• CE-typical drive systems are

- suitable for the operation on public and non-public mains and

- provided for industrial applications.

• Because the ground potential reference of the RFI filters the CE-

typical drive system which is described is not suitable for the
connection to IT mains (mains without ground potential reference).

• The drive controllers are not domestic appliances, but are designed

for drive systems for commercial use.

• The controllers of the types 48x themselves are not machines

according to the EC Machinery Directive. The final function is
only determined when integrated into the machine construction
of the user.

• The user must consider measures in his machine construction

which limit the consequences in case of malfunction or failure of
the drive controller (increase of the motor speed or sudden
motor stop) so that hazards for persons or material assets
cannot be caused, such as:

− further independent equipment for the monitoring of safety­relevant variables (speed, travel, end positions, etc.)

− electrical or non-electrical protective equipment (latching or
mechanical blocking)

− measures covering the complete system

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3 Accessories

The following components can be ordered separately:

• RFI filter

• Mains choke

• Mains fuses and fuse holders

• Knob and scale for set-value potentiometer

• Option board 2003 and 1071

Type 481 482 483 484 485

RFI filter
Type EZF3_025A001 EZF3_050A001 EZF3_110A001 EZF3_180A001 EZF3_280A001

RFI filter
for the separate
neutral
conductor of the
field supply
Type EZF1_009A001 EZF1_018A001

AC mains choke
L

K

Type

3 x 0.88mH / 35A
ELN3_0088H035

3 x 0.75mH / 45A
ELN3_0075H045

3 x 0.38mH / 85A
ELN3_0038H085

3 x 165µH / 170A
ELN3_0017H170

3 x 115µH / 270A
ELN3_0011H270

Mains fuse
F1, F2, F3

Type

FF25A/600 V

14 x 51

EFSFF0250AYH

FF50A/600 V

22 x 58

EFSFF0500AYI

FF100A/660 V

00/80

EFSFF1000AXL

FF200A/660 V

00/80

EFSFF2000AXL

FF315A/660 V

00/80

EFSFF3150AXL

Fuse holder
Type EF00332721 EF00357279 EF00326308 EF00326308 EF00326308

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Mains choke

f

m

c
a

d
b

n

e

k

Type 481 482 483 484 485

Mains choke
Type ELN3_0088H035 ELN3_0075H045 ELN3_0038H085 ELN3_0017H170 ELN3_0011H270

L [mH] 3 x 0.88 3 x 0.75 3 x 0.38 3 x 0.165 3 x 0.115
I [A] 35 45 85 170 270
a [mm] 180 180 228 264 300
b [mm] 91 91 111 128 140
c [mm] 161 161 206 240 274
d [mm] 74 74 94 107 114
e [mm] 225 225 273 257 290
f [mm] 165 165 205 237 265
k [mm] 120 120 140 166 190
m [mm] 6.3 6.3 6.3 8.3 8.3
n [mm] 11 11 11 16 16
Weight [kg] 9.8 9.8 19.5 32.2 43.2

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RFI filter (V

max

= 440 V ±0 %)

Design A

Design B

Type 481 482 483 484 485

Filter
Type EZF3_025A001 EZF3_050A001 EZF3_110A001 EZF3_180A001 EZF3_280A001

Rated current [A] 25 50 110 180 280
Design AABBB
a [mm] 250 250 436 537 742
b [mm] 150 150 170 180 260
c [mm] 135 135 130 156 220
d [mm] 200 200 350 360 530
e [mm] 65 65 90 132 153
f [mm] 17 17 70 88 103
g [mm] 115 115 375 470 660
Fixing 4 x M6 4 x M6 4 x M10 4 x M10 4 x M10
Weight [kg] 3.0 3.1 9.5 13.0 28.0

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RFI filter for the separate neutral conductor of the
field supply (V

max

= 250 V ±0 %)

Design C

Type 481 ... 484 485

Filter
Type EZF1_009A001 EZF1_018A001

Rated current [A] 9 18
Design C C
a [mm] 120 123
b [mm] 55 85
c [mm] 50 39
d [mm] 110 108
e [mm] 45 50.8
f [mm] 95 100
Fixing 4 x M3 4 x M4
Weight [kg] 0.6 0.7

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4 Installation

4.1 Installation

When installing into an enclosure ensure sufficient ventilation. The
ambient temperature must not exceed +45 °C. Install the controller
with the terminals at the top.

External operating elements (e.g. switch, fuses) must not be
arranged close (≤ 250 mm) to the controller 480. If this distance is
not observed, a suitable cover must be provided in order to avoid
accidental contact with the controller board.

4.2 Connection

• The controllers contain electrostatically sensitive components. Prior
to assembly and servicing the personnel must be free of
electrostatic charges. Discharging is possible by touching the PE
fixing screw or another grounded metal part in the control cabinet.

• If you use residual current devices:

− The controllers have an internal mains rectifier. After a short-

circuit to frame a DC fault current may prevent the tripping of
the residual current device. Therefore, take additional
measures like zeroing or use universal current e.l.c.b.

− Observe for the dimensioning of the release current of
e.l.c.b. that capacitive compensating currents of the cable
screens and RFI filters occuring during normal operation
may cause false tripping.

− Note for the use of universal e.l.c.b.:
The preliminary standard prEN50178 (in the past VDE0160)
about the use of universal e.l.c.b. has been decided by the
German committee K226.
The final decision about the use in compliance with the
standard is made by the CENELEC/CS (European
Committee for Electrotechnical Standardization) in Brussels.
Further information on the use of universal current e.l.c.b.
can be obtained from the supplier.

The phase sequence for the connection of the power terminals L1,
L2, L3 is arbitrary.
All cables from and to the controller must be screened. Connect the
screening at both ends, close to the cable ends, to the central PE
connection. When using the supplied set-value potentiometer, the
mechanical screw fixing must have an additional PE connection
and the connections must be insulated and covered.

Caution!
In the operating mode "armature voltage control with I x R
compensation" all control terminals carry mains potential.

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It is therefore necessary that all input and output signals
required for the control of the controller are, electrically, safely
separated by measures outside the controller and have
another protection against direct contact (double basic
insulation).

For operation with tacho voltage feedback the control
electronics has a simple basic insulation. Take measures
outside the controller to ensure that input and output signals
of the control have a double basic insulation.

The protective cover above the controller board reduces the hazard
of accidental touching of live components. For the assembly and
during commissioning the cover must be removed.

Caution!
Removal of the protective cover and all settings must only be
carried out by qualified skilled personnel.
With removed cover, there is increased danger of accidental
contact with bare, live components on the controller board.

The protective cover must only be attached and removed when no
voltage is applied. The cover must be replaced after setting.

The temperature of the power semiconductors in the 483...485
units is monitored by a thermal sensor. If the heatsink temperature
exceeds the limit ϑ

limit

= 90 °C the controller sets controller inhibit
"RSP" and the firing pulses are set to the inverter limit position.
An electrical latching also prevents an automatic reconnection after
the controller has cooled. The latching can only be eliminated by
disconnection and reconnection of the mains!

Notes for the connection of controller and motor

Lenze controller Motor (acc. to DIN 42017 / VDE 0530 part 8)

Function TerminalTermina

l

other

designations

Motor type

Armature voltage +

-

Excitation voltage +

-

A
B
I
K

1B1
2B2
F1
F2

A1
B2, A2
E1
E2

DC motor uncompensated with commutating pole
winding

Armature voltage +

-

Excitation voltage +

-

A
B
I
K

1C1
2C2
F1
F2

A1
C2
E1
E2

DC motor compensated with commutating pole
winding

Armature voltage +-A

B

A1
A2

Permanent magnet motor

DC tacho +-3

4

2A1
2A2

AC tacho +
with rectification -34

3A1
3A2

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4.2.1 Installation corresponding to EMC

• Controllers cannot be operated on their own. The EMC of
controllers on their own cannot be tested. Only the integration of
the controllers into a drive system allows a test whether the
objectives of the EC EMC Directive are met and whether the
device are in compliance with the law about the electromagnetic
compatibility of equipment.

• Lenze has done conformity tests with the controllers of the types
48x in certain, defined drive systems. These tested drive
systems are called "CE-typical drive system" in the following.

• Therefore, the user of the controller has the choice,

− either to determine the system components and their

integration into a drive system himself and to determine the
conformity under his own responsibility

− or to install the drive system according to the CE-typical drive
system as tested by the manufacturer of the controller and
declared to be in compliance.

• If you observe the following measures you can assume that EMC
problems caused by the drive system will not arise during the
operation of the machine and the EMC Directive and the EMC law
are satisfied.

• For any other installation, e.g.

− use of unscreened cables,

− use of collective RFI filters instead of the allocated RFI filters,

− omission of mains chokes

the machine or system must be tested whether it is compliance
with the EC EMC Directive and the EMC limit values are
considered.

• The compliance with the EMC Directive in the machine
application is the responsibility of the user.

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4.2.2 CE-typical drive system

Components of a CE-typical drive system

System component Specification

Controller Controller of the types 48x
RFI filter Data and allocation see chapter 3 "Accessories"
Mains choke Data and allocation see chapter 3 "Accessories"
Armature and field cable Screened power cable with tinned E-CU braid with

85 % optical coverage.
Tested maximum length: 50 m

Mains cable between
RFI filter and mains
choke and between
mains choke and
controller

As from cable length of 200 mm:
screened power cable with tinned E-CU braid with
85 % optical coverage..

Control cables Screened signal cable type LIYCY
Motor DC motor with separate excitation

Lenze series GFQ, GFR or similar

Note:

Controller, RFI filter, and mains choke are located on one mounting
plate.

Installation of the CE typical drive system

The electromagnetic compatibility of a drive system depends on the
type and accuracy of the installation.
Take special care with

− filters

− screening

− grounding

Filters

• Only use the RFI filters and mains chokes allocated to the
controllers

− RFI filters reduce non-permissible high-frequency
interferences to a permissible value.

− Mains chokes reduce low-frequency interference which
depends primarily on the motor cables and their length.

For motor cables which are longer than 50 m additional
measures are required.

Screening

• Screen all cables from and to the controller.

• Make sure that motor cables are separated from signal and

mains cables when laying the cables.

• Avoid a common terminal board for mains input and motor
output.

• The cables must be laid as close as possible to the reference
potential. Dangling cables are like antennas.

Grounding

• Ground all conductive metal components (controllers, RFI
filters, mains chokes) by suitable cables from a central
grounding point (PE bar).

• Observe the minimum cross-sections prescribed in the safety
information. However, for EMC the surface of the contact is
important and not the cross-section.

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Assembly

• Make the contact from controller, RFI filter, and mains chokes to
the grounded mounting plate with as large a surface as
possible. Zinc-coated mounting plates allow long-lasting
contacts. For painted plates the paint of the mounting plates
must be removed in all cases.

• If you use several mounting plates:

− Make a conductive connection of the mounting plates with as

large a surface as possible (e.g. using copper bands).

• Connect the screen of the armature and field cable to the
mounting plate with as large a surface as possible:

− Recommendation: Make the large-surface connection of the
screens to the mounting plate with earthing clamps on bare
metal mounting surfaces.

• If there are contactors, motor protection switches, or terminals
in the armature cable:

− Contact of the screens of the connected cables to each other
and to the mounting plate with as large a surface as
possible.

• In the terminal box, connect the screen of the motor to PE:

− Metal cable glands at the motor terminal box ensure a large-

surface connection of the screen to the motor housing.

• If the total length of the mains cable between RFI filter and
mains chokes and controller exceeds 200 mm:

− Screen mains cables

− Connect the screen of the mains cables to the mounting

plate with as large a surface as possible.

• Connect the screen of the control cables to the mounting plate
with as large a surface as possible.

• If you use drive systems with the types 48x in residential areas:

− Check the compliance with radio interference voltage level

(EN55022 class B) at the supply location of the operating
area.

− Check the permissible radio interference emission
(EN55022 class B) at the supply location of the operating
area.

Please note:

If devices which do not comply with the CE requirement concerning
the noise immunity EN 500882-2 are operated close to the
controllers, an electromagnetic disturbance of these devices by the
controllers is possible.

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Part of the CE-typical drive system which is located on the
mounting plate

LOAD

LINE

Connect screen of the
motor cables at the motor
side as well, with a large
surface to PE.

Mains choke

LOAD

LINE

PE

RFI filter

L1 L2 L3

Paint-free bare metal
contact sufaces

Paint-free
surfaces for
screen contact

Paint-free surfaces
for screen c ontact

Paint-free
surfaces for
screen contact

Screened
control
cables

PE bar

PE connection

Mounting plate
conductive
connection
with PE

Controller

Screened
armature cable

Screened field cable
or laid together with
armature cable in the
motor system cable

NIK

ABL1 L2 L3PE

Paint-free surfaces
for screen contact

Second filter
(2-phase)

Connection mains fusing

N

L

480

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4.3 Connection diagram

A

B

I

K

Connections made at the factory

L1

L2

L3

RFR

R

+

-

Feedback

Set-value
input

F1 F2 F3

L

K

PE

L1 L2

L3

N

Mains
filter

+

-

G

PE

Master voltage

Tacho

n

min

n

max

set

n

1

23

47891214161731 38 40

+V

CC

CC

-V

1

PE

U = 190...265V 50...60Hz

L1, N

U = 340...460V 50...60Hz

3L

Mains
filter

G

PE

K

IL2(N)L1.1 L1.1 L3.2L2.2

L2

B

A

L1PE L3

M

=10...180 V

= 10...180 V

TN

U

33

U

LN

Explanations



Only the feedback system used can be connected at terminals 1/2 or 3/4.

Note

1. If the signals must be changed over via relays, use suitable
relay contacts (e.g. gold-plated contacts).

2. When switch RFR is closed the controller is enabled.

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4.4 Special field voltages

4.4.1 Field voltage VF = 0.9 x VL1,

L2

V

L1, L2, L3

= 340...460 V

V

I, K

= 0.9 x U

L1, L2

Example:
V

I, K

= 0.9 x 400 V

V

I, K

= 360 V

4.4.2 Field connection via autotransformer

V

L1, L2, L3

= 340...460 V

V

I, K

= 0.9 x U

L1, L2 (N)

4.4.3 Field connection via transformer

I

K

F1 F2 F3

L2

L3

L1

PE

Mains filter

L

K

L1PEL2 L3

KI

L2(N)L1.1

V

L1, L2, L3

= 340...460 V

V

I, K

= 0.9 x U

L1, L2 (N)

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4.5 Mains voltage V3L < 340 V

F2

F3F1

U

V

W

u

v

w

400V

Dd0

P ≥ 150 VA

1,1 x U

F

L

K

PE L2 L3L1

PE

L2 L3

L1

PE

K

I

L2(N)L1.1 L2.2 L3.2L1.2

Mains
filter

If the mains voltage is lower than 340 V the control electronics
must be supplied separately via the step-up transformer as shown
in the illustration.
Remove the connections between terminals L1.2, L2.2 and L3.2
and the 4082 board. Remove the jumper "BR1" on the 4081 board
(see chapter 2.2 "Dimensions").

Caution!
This modification must only be carried out by qualified skilled
personnel. After removing the jumpers the protective cover
must be reassembled.

The correct phase sequence for the connection of the AC
transformer must be observed in all cases!

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4.6 Additional terminals

Terminal

designation

Meaning

9+VCC = +15 V= stabilized. +VCC can be loaded externally with 15 mA.

12

Input current controller; R

i

» 10 kΩ, U

iset

= 0... –10 V= (–10 V

=

^

I

Amax

)
14 -VCC = -15 V= stabilized. -VCC can be loaded externally with 15 mA.
31 Output actual armature current. The output terminal 31 supplies an output voltage proportional

to the armature current. U

31

» 5 V corresponds to the rated controller current. This output can

be loaded with a maximum of 3 mA. The output resistance is R

i

= 1 kΩ.

38

Freely assignable speed controller input
Terminal 38 leads to the summation point of the speed controller via R

i

» 50 kΩ. The

permissible input voltage range is between -10 V and +10 V.

40

Output speed controller; Ri » 200 Ω.
Terminals 40 and 12 are connected internally via a resistor 2.2 kΩ

(R812 on soldering posts, see chapter 2.2 "Dimensions").

Caution!

If an external set-value potentiometer is connected, this resistor must be removed.

Connection of a potentiometer to limit the current set-value:

4.7 Replacing the fuses

The fuses protect the controller from non-permissible operating
conditions. After the release of such a protective function, the
controller and the system must be checked for further faults before
replacing the fuses.

Remove the protective cover to replace the fuses.

Caution!
Removal of the protective cover and the replacement of the
fuses must only be carried out by qualified skilled personnel
when no voltage is applied.

Defective fuses must only be replaced by the prescribed type (see
chapter 2.1 "Controller-specific data").

The protective cover must be attached again after the fuses are
replaced.

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5 Commissioning

Turn trimmers "n

min

", "n

max

", "Vp", "I · R" fully counterclockwise.

Trimmers "U

Leit grob

" and "U

Leit fein

" are factory-set for the set-

value potentiometer connection as a standard.
Only if a master voltage is used: "U

Leit grob

" must be turned fully

counterclockwise and "U

Leit fein"

to a middle position for the

subsequent base setting.

Trimmer "I

max

" is factory-set to rated controller current.

5.1 Setting the current limit

The current limit only needs to be set if the motor current is lower
than the rated controller current.
Connect a moving coil meter in the armature circuit to measure the
current. Block the armature or disconnect the field.

Caution:
Observe the current capacity of the motor at standstill!

Turn trimmer "n

min

" fully clockwise and connect the mains.

Turn trimmer "I

max

" to adjust the armature current.

Then turn trimmer "n

min

" fully counterclockwise.

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5.2 Armature voltage control with "I x R compensation"

Caution!
In this operating mode all control terminals carry mains
potential. It is therefore necessary that all input and output
signals required for the control of the controller are safely
separated electrically by measures outside the controller and
have another protection against direct contact (double basic
insulation).
When using the supplied set-value potentiometer, the
mechanical screw fixing must have an additional PE
connection and the connections must be insulated and
covered.

• Connect motor terminal A to controller terminal 1 and motor
terminal B to controller terminal 2 (see connecting diagram).

• Set set-value potentiometer or master voltage to zero.
Connect mains.
LED "RSP" is illuminated.
LED "±V

CC

" is illuminated.

• Set set-value potentiometer or master voltage to maximum.
In case of master voltage operation, turn trimmer "U

Leit grob

"
clockwise until '+10 V=' are applied at measuring point "M1"
(measured across terminal 3, terminal 7, or terminal 33 = GND).

• Close switch "RFR".
LED "RSP" is not illuminated.

• Turn trimmer "n

max

" clockwise until the desired maximum speed

is obtained.

• Set set-value potentiometer or master voltage to zero.

• Turning trimmer "n

min

" clockwise increases the minimum speed.
Check the adjustment of the maximum speed since trimmers
"n

max

" and "n

min

" influence each other.
The fine setting of the maximum speed, is done using trimmer
"U

Leit fein

".

• Turn trimmer "V

p

" clockwise, until the drive becomes unstable

(speed oscillations), then turn trimmer "V

p

" approx. 20 %

counterclockwise until the drive is stable again.

• Set the speed stabilization at trimmer "I x R" such that the
smallest speed change results with the smallest operating
speed between idle running and rated load. Then check the
compensation for higher speeds.

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5.3 Speed control with tacho feedback

Caution!
In this operating mode, the control electronics has a simple
basic insulation. Take measures outside the controller to
ensure that the input and output signals of the control have a
double basic insulation.

• Set set-value potentiometer or master voltage to zero.
Connect mains.
LED "RSP" is illuminated.
LED "±V

CC

" is illuminated.

• Set set-value potentiometer or master voltage to maximum.

• In case of master voltage operation, turn trimmer "U

Leit grob

"
clockwise until '+10 V=' are applied at measuring point "M1"
(measured across terminal 3, terminal 7, or terminal 33 = GND).

• Close switch "RFR".
LED "RSP" is not illuminated.

Caution!
In case of uncontrolled acceleration of the motor during speed
setting, immediately open switch "RFR". In this case, the
tachogenerator feedback is either missing or has incorrect
polarity.
After checking and correcting the wiring, commissioning can
be started again.

• Turn trimmer "n

max

" clockwise until the desired maximum speed

is obtained.

• Set set-value potentiometer of master voltage to zero.

• Turning trimmer "n

min

" clockwise increases the minimum speed.
Check the adjustment of the maximum speed since trimmers
"n

max

" and "n

min

" influence each other.
The fine setting of the maximum speed is done using trimmer
"U

Leit fein

".

• Turn trimmer "V

p

" clockwise, until the drive becomes unstable

(speed oscillations), then turn trimmer "V

p

" approx. 5 %

counterclockwise until the drive is stable.

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6 Switching operation

6.1 Controller enable

If switch "RFR" is closed, the controller is enabled.
If the switch "controller enable" (RFR) is open the speed controller
is inhibited, i.e. the firing pulses are set to the inverter limit position.

RFR

16 17

Only use low-current contacts for the switching of signal cables
(15V / 1.5mA)

6.2 Controller inhibit

The function "RSP", i.e. the inhibiting of the controller with a
normally-open contact is possible using the following connection.
When "RSP" (controller inhibit) is closed, the firing pulses are set to
the inverter limit position.

RSP

16 177

Only use low-current contacts for the switching of signal cables
(15V / 1.5mA)

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Index

A

Accessories 9
Additional terminals 22
Application

as directed 8

C

Commissioning 23

Armature voltage control with "I · R
compensation" 24
Setting the current limit 23

Controller features 5
Controller-specific data 6

D

Dimensions 7

Mains choke 10
RFI filter 11, 12

I

Installation 13

Connecting diagram 19
Connection 13
Installation 13

O

Operating modes

Controller enable 26
Controller inhibit 26

R

Replacing the fuses 22

S

Scope of supply 8
Special field voltages 20
Speed control with tacho feedback 25

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