BERGES ACP Micro 3000 User Manual

Operating manual

0.37–15 kW

Berges electronic • D–51709 Marienheide-Rodt • Tel. [phone] • Fax [phone]

Parameter Code Summary

PARA-

METER

02-RVLVL Software Revision 35
03-IRAT Inverter Rated Current A 35
07-FLT3 Last Fault 36
08-FLT2 Second Fault 36
09-FLT1 First Fault 36
12-FOUT Motor Output Frequency 0.00–400.0 Hz 36
13-VOUT Motor Output Voltage 0–100%

14-IOUT Motor Output Current 0.00–60.00 A 36
15-LOAD Inverter Load 0–200%

17-TEMP Inverter Temperature 0.00–110.0 °C 36
1A-FSTAT Stator-Frequency

21-MODE Input Mode 3
24-FSEL Speed Setpoint Selector 0
31-FMIN Minimum Frequency 0.00 Hz 0.00–400.0 Hz 38

32-FMAX Maximum Frequency 50.00 Hz 20.00–400.0 Hz 38
33-F2 Preset Frequency 2 5.00 Hz 0.00–400.0 Hz 38
34-F3 Preset Frequency 3 20.00 Hz 0.00–400.0 Hz 38
35-F4 Preset Frequency 4 40.00 Hz 0.00–400.0 Hz 38
36-F5 Preset Frequency 5 50.00 Hz 0.00–400.0 Hz 38
37-F6 Preset Frequency 6 0.00 Hz 0.00–400.0 Hz 38
38-F7 Preset Frequency 7 0.00 Hz 0.00–400.0 Hz 38
39-FTL Minimum Frequency in Torque Limit 10.00 Hz 0.00–400.0 Hz 39
41-RSEL Ramp Selector 0

42-ACC1 Acceleration Time 1 3.00 s 0.10–600.0 s 39
43-DEC1 Deceleration Time 1 3.00 s 0.10–600.0 s 39
44-ACC2 Acceleration Time 2 1.00 s 0.10–600.0 s 40
45-DEC2 Deceleration Time 2 1.00 s 0.10–600.0 s 40
46-DECTL Deceleration Time in Torque Limit 1.00 s 0.10–30.00 s 40
47-DCBRK DC Brake Time 0.20 s 0.00–5.00 s 40
48-DCVLT DC Brake Voltage 2/3 of
51-VSEL V/Hz Characteristic Selector 0 0–5 40
52-BOOST Voltage Boost 8.00% 0.00–25.00% 41
53-FKNEE V/Hz Knee Frequency 50.00 Hz 26.00–400.0 Hz 42
54-SKBND Skip Frequency Hysteresis Band 1.00 Hz 0.20–20.00 Hz 42
55-SK1 Skip Frequency 1 0.00 Hz 0.00–400.0 Hz 42
56-SK2 Skip Frequency 2 0.00 Hz 0.00–400.0 Hz 42
57-SK3 Skip Frequency 3 0.00 Hz 0.00–400.0 Hz 42
59-MVOLT Rated Motor Voltage 230/400 V 185–240 V;

5B-MSAT Motor Saturation Level 47% 15–80% 42
61-LTLF Load Torque Limit Forward 150% 10–150% 42

DESCRIPTION FACTORY

SETTING

52-BOOST

RANGE PAGE CUSTOMER

of line voltage

03-IRAT

of

(1)

Hz

(2)

0–11

(2)

0–19

(2)

0–7

0–15% 40

370–480 V

36

36

55 Read-only
36/55
38/55

39/56

42

SETTING

21.12.98 Operating manual
04_GB ACP 3000 — 0.37–15.0

Berges electronic • D–51709 Marienheide-Rodt • Tel. [phone] • Fax [phone]

PARA-

METER

62-LTLR Load Torque Limit Reverse 150% 10–150% 42
63-RTLF Regenerative Torque Limit Forward 80% 10–110% 42
64-RTLR Regenerative Torque Limit Reverse 80% 10–110% 42
65-SLIP Slip Compensation 0.00%

66-STAB Current Stability Adjustment 3 0–4 43
67-TOL Timed Overload Trip Point 0% 0–100% 43
68-NRST Trip Restart Number 0 0–8 44
69-DRST Restart Delay Time 0.00 s 0.00–60.00 s 44
6A-TOLC Timed Overload Characteristic 0 0–7 45
70-MCAL Analog Meter Output Calibration MET1 Set for10 VDC 0–255 45
71-METER Analog Meter Output Selector MET1 1

72-ST1 Open Collector Output 1 7 0–10 46
75-STR Auxiliary Relay Output 1 0–10 46
77-MOL Motor Overload Input 2 0–3 47
78-MCAL2 Analog Meter Output Calibration MET2 0–20 mA or 4–20 mA;

79-MET2 Analog Meter Output Selector MET2 3
81-PRGNO Special Program/PI Control Characteristics 0 0–9999 48/56

82-START Start Options 1 0–11 48
83-PWM PWM Carrier Frequency Selector 1 0–5 49
84-DISP Display Option Setting 0 0–3000 49
87-ACODE Security Access Code 0 0–999 50
97-RVLVL2 Software Revision Level 2 0.00–12.75 50 Read-only
A1-FCORR Frequency Correction

A6-ERROR2 Final Error
A7-ERROR1 Initial Error
A8-SIPART Integral Sum
B3-KP Proportional Gain
B4-KI Integral Gain
B5-KIN VIN1 Scaling

DESCRIPTION FACTORY

SETTING

set for 20 mA

RANGE PAGE CUSTOMER

(2)

0.00–12.00%

(2)

0–5

0–255 47

(2)

0–15

(1)

0.00–400.0 Hz

(1)

–

(1)

–

(1)

–

(1)

0–255

(1)

0–255

(1)

0–255

43/56

45/56

47/56

55
55 Read-only
55 Read-only
55 Read-only
55
55
55

SETTING

NOTES:

Level 1 Parameters shown shaded.
(1) Additional parameters that are only available when using the PI controller and when

81-PRGNO

the

parameter is set to a value between 80 and 95 (see page 56). See

chapter 6, from page 51 on, for further information about the PI controller.

(2) Extended parameters when using the PI controller. For further information about the

PI controller, see chapter 6, as from page 51.

Operating manual 21.12.98

ACP 3000 — 0.37–15.0 04_GB

Berges electronic • D–51709 Marienheide-Rodt • Tel. [phone] • Fax [phone]

Table of Contents

Page

1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Explanation of Symbols and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Safety and Operating Instructions for Drive Converters. . . . . . . . . . . . . . . . . . . . . . 3

1.3 Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1 Model Identification Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3 General Drive Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.4 Dimensional Data (Size I) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.4.1 Dimensional Data (Size II). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.4.2 Dimensional Data (Size III) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.4.3 Dimensional Data (Size IV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1 Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2 General Rules for Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.3 EMC (Electromagnetic Compatibility) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.3.1 Suggestion on how to solve the Problem of Radio Frequency Interference

Suppression of Frequency Converters to VDE 0875/EN 55011 . . . . . . . . . . . . . . 12

3.3.2 Mains Filters/Output Chokes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.3.3 Filter Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.3.4 Interference Suppression Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.4 EMC Ordinance (EMC Directive, 89/336 EEC) . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.5 Wiring Practices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.5.1 Applicable Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.5.2 Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.5.3 Control Wiring/Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.6 Mains Power Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.6.1 Mains Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.6.2 Line Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.6.3 Using Mains Filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.6.4 Line Starting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.7 Motor Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.8 Reducing Current Surges and Voltage Transients. . . . . . . . . . . . . . . . . . . . . . . . . 23

3.9 Function and Use of Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.10 Terminal Access Cover Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.11 Terminal Assignment (Mains supply 1 × 230 VAC, 0.37–4.0 kW) . . . . . . . . . . . . . 26

3.12 Terminal Assignment (Mains supply 3 × 400 VAC, 0.37–4.0 kW) . . . . . . . . . . . . . 26

3.13 Terminal Assignment (Mains supply 3 × 400 VAC, 5.5–15.0 kW) . . . . . . . . . . . . . 27

3.14 Remote Keypad/Program Memory Unit Connector (J22) . . . . . . . . . . . . . . . . . . . 27

3.15 Control Terminal Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.16 J20 Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

21.12.98 Operating manual
04_GB ACP 3000 — 0.37–15.0

1

Berges electronic • D–51709 Marienheide-Rodt • Tel. [phone] • Fax [phone]

Page

4 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

4.1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.2 Digital Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.3 Keypad Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.4 Operation Mode (RUN and STOP Modes). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.5 Program Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.6 Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.7 Description of Displays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.8 Programming Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

4.9 Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5 Parameter Configuration and Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.1 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.2 Parameter Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6 PI Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

6.2 Overview of PI Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

6.3 Reference and Feedback Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

6.4 Calculating PI Controller Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

6.5 Parameters for PI Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

7 Connection Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

7.1 AC Line and Motor Connections (Mains supply 1 × 230 VAC and 3 × 400 VAC) . 58

7.2 2-Wire Run/Stop Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

7.3 3-Wire Run/Stop Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

7.4 Auxiliary Relay Output and Digital Output ST1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

7.5 MOL Terminal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

7.6 Analog Speed Input Connections (VIN1/VIN2) . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

7.7 Optional Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

8.1 Special Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

8.2 Fault Trip Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

8.3 Resetting a Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

8.4 Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

9 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

9.1 Parameter Code Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

9.2 Parameters Added or Amended when PI Control is Utilized . . . . . . . . . . . . . . . . . 67

9.3 Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

2

Operating manual 21.12.98

ACP 3000 — 0.37–15.0 04_GB

Berges electronic • D–51709 Marienheide-Rodt • Tel. [phone] • Fax [phone]

1 General Information

1.1 Explanation of Symbols and Notes

Work Safety Symbol

You will find this symbol next to all work safety notes in this operating manual if there is a
risk of injury or death for persons involved. Pay attention to these notes and observe par­ticular caution in such cases. Also pass on all work safety instructions to other users.

Voltage Warning

This symbol is shown wherever particular caution is necessary owing to occurring or ap­plied voltages (e.g. DC voltages up to 650 V) and where special precautionary measures
have to be taken. The inverter must always be isolated from the mains when working on it.

Caution Note

ATTENTION!

This note is shown in all parts of this operating manual to which particular attention must be
paid to ensure that the guidelines, specifications, notes and the correct sequence of work
will be obeyed and to prevent damage or destruction of the inverter and/or systems.

1.2 Safety and Operating Instructions for Drive Converters

1. General

In operation, drive converters, depending on their degree of protection, may have live,
unisolated, and possibly also moving or rotating parts, as well as hot surfaces.

In case of inadmissible removal of the required covers, of improper use, wrong installation
or maloperation, there is the danger of serious personal injury and damage to property.

For further information, see documentation.
All operations serving transport, installation and commissioning as well as maintenance are

to be carried out by skilled technical personnel (Observe IEC 364 or CENELEC HD 384
or DIN VDE 0100 and IEC 664 or DIN/VDE 0110 and national accident prevention rules!).

For the purposes of these basic safety instructions, “skilled technical personnel” means per­sons who are familiar with the installation, mounting, commissioning and operation of the
product and have the qualifications needed for the performance of their functions.

We draw attention to the fact that no liability can be assumed for damage and malfunctions
resulting from failure to observe the operating manual.

Technical amendments of illustrations and data given in this operating manual are reserved
in the interest of improving the unit and its functions.

2. Intended Use

The application of the drive converter described in this operating manual exclusively serves
the purpose of continuously variable speed control of three-phase motors.

Drive converters are components designed for inclusion in electrical installations or machin­ery.

The drive converters are designed for installation in a switchgear cabinet and for permanent
connection.

The operator of the system is solely liable for damage resulting from improper use of the
drive converter.

21.12.98 Operating manual
04_GB ACP 3000 — 0.37–15.0

3

Berges electronic • D–51709 Marienheide-Rodt • Tel. [phone] • Fax [phone]

Only items expressly approved by BERGES (e.g. mains filter, choke, external braking chop­pers and braking resistors etc.) may be used as accessories.

The installer of the system is liable for any damage resulting from the use of accessories
that have not been approved expressly by BERGES. Please consult us in case of doubt.

In case of installation in machinery, commissioning of the drive converters (i.e. the starting
of normal operation) is prohibited until the machinery has been proved to conform to the
provisions of the directive 89/392/EEC (Machinery Safety Directive – MSD). Account is to
be taken of EN 60204.

Commissioning (i.e. the starting of normal operation) is admissible only where conformity
with the EMC directive (89/336/EEC) has been established.

The drive converters meet the requirements of the low-voltage directive 73/23/EEC. They
are subject to the harmonized standards of the series prEN 50178/DIN VDE 0160 in con­junction with EN 60439-1/DIN VDE 0660, part 500, and EN 60146/DIN VDE 0558.

The technical data as well as information concerning the supply conditions shall be taken
from the rating plate and from the documentation and shall be strictly observed.

3. Transport, Storage

The instructions for transport, storage and proper use shall be complied with.
Damage established after delivery must be notified to the transport company immediately.

Where necessary, the supplier must also be notified before the damaged drive converter is
put into operation.

The climatic conditions shall be in conformity with prEN 50178.

4. Installation

The installation and cooling of the appliances shall be in accordance with the specifications
in the pertinent documentation.

The drive converters shall be protected against excessive strains. In particular, no compo­nents must be bent or isolating distances altered in the course of transportation or handling.
No contact shall be made with electronic components and contacts.

Drive converters contain electrostatic sensitive components which are liable to damage
through improper use. Electric components must not be mechanically damaged or de­stroyed (potential health risks).

5. Electrical Connection

When working on live drive converters, the applicable national accident prevention rules
(e.g. VBG 4) must be complied with.

The electrical installation shall be carried out in accordance with the relevant requirements
(e.g. cross-sectional areas of conductors, fusing, PE connection). For further information,
see documentation.

Instructions for the installation in accordance with EMC requirements, like screening, earth­ing, location of filters and wiring, are contained in the drive converter documentation. They
must always be complied with, also for drive converters bearing a CE marking. Observance
of the limit values required by EMC law is the responsibility of the manufacturer of the in­stallation or machine.

4

6. Operation

The components of the power section and certain elements of the control section are con­nected to the voltage mains when the drive converter is connected to the mains voltage.

Touching these components involves mortal danger!

Always isolate the drive converter from the mains supply before performing any work on the
electrical or mechanical part of the system.

Operating manual 21.12.98

ACP 3000 — 0.37–15.0 04_GB

Berges electronic • D–51709 Marienheide-Rodt • Tel. [phone] • Fax [phone]

Isolate the drive converter from the mains before removing the terminal cover or the hous­ing (e.g. by removing or deactivating on-site fuses or by deactivating a master switch iso­lating all poles etc.).

After disconnection of the drive converters from the voltage supply, live appliance parts and
power terminals must not be touched immediately because of possibly energized capaci­tors. In this respect, the corresponding signs and markings on the drive converter must be
respected. After switching off the mains voltage, wait for at least 5 minutes before begin­ning work on or in the drive converter. Dangerous voltages are still present as long as the
“STATUS” lamp is still lit. In the event of malfunctions, the discharge time of 5 minutes may
be exceeded substantially.

The drive converter contains protective facilities that deactivate it in the event of malfunc­tions, whereby the motor is de-energized and comes to a standstill (so-called “coasting” of
the motor is possible depending on the rotating mass of the type of drive involved). Stand­still of the motor can, however, also be produced by mechanical blockage. Voltage fluctua­tions, and particularly mains power failures, may also lead to deactivation. In certain
circumstances, the drive may start up automatically once the cause of the fault has been
remedied. As a result of this, certain systems may be damaged or destroyed and there may
be a risk for operators working on the system. Installations which include drive converters
shall be equipped with additional control and protective devices in accordance with the rel­evant applicable safety requirements, e.g. Act respecting technical equipment, accident
prevention rules etc. Changes to the drive converters by means of the operating software
are admissible.

1.3 Preface

The motor may be stopped during operation by disabling it or by deactivating the setpoint,
whereby the drive converter and motor may remain live. If inadvertent start-up of the mo-

tor must be excluded to protect operating personnel, electronic interlocking by dis­abling the motor or by deactivating the setpoint is inadequate. This is why the drive
converter must be isolated from the mains voltage.

During operation, all covers and doors shall be kept closed.
Measuring instruments must be connected and disconnected only in de-energized condi-

tion.
Unauthorized conversions or modifications on or in the drive converter and its components

and accessories will render all warranty claims void.
Please contact BERGES if conversions or modifications are necessary, particularly if elec-

trical components are involved.

7. Maintenance and Servicing

The manufacturer's documentation shall be followed.

KEEP SAFETY INSTRUCTIONS IN A SAFE PLACE!

Before you read on, please check whether technical changes are at-

tached in the annex to this operating manual!

The present manual contains the specifications, installation instructions, description of op­eration and troubleshooting procedures for ACP 3000 inverters. The information in this
manual must be known before installation of the inverter in order to guarantee fault-free in­stallation and thus maximum performance.

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2 Technical Data

2.1 Model Identification Number

All ACP 3000 models bear a systematic identification number designating the rated input
voltage, the rated power and the housing type. This model number appears both on the
shipping carton label and the technical data label on the drive.

Example type marking

2.2 Power Specifications

Models with Supply Voltage 1 × 230 VAC

Model ACP 3300-3 3300-5 3300-7 3301-1 3301-5 3302-2

Kilowatt (kW) 0.37 kW 0.55 kW 0.75 kW 1.1 kW 1.5 kW 2.2 kW
Output Voltage Three Phase 3.5–230 VAC
Rated current 1.94 A 2.6 A 3.4 A 4.8 A 6.4 A 9.0 A
Maximum Output Current * 2.1 A 2.9 A 3.7 A 5.3 A 7.0 A 9.9 A
Input Volts (±10%) 208–230 V~
Maximum Input Current 3.1 A 4.7 A 6.4 A 9.4 A 12.7 A 18.6 A

Table 2.1

Models with Supply Voltage 3 × 400 VAC

Model ACP 3600-7 3601-5 3602-2 3603-0 3604-0 3605-5 3607-5 3611-0 3615-0

Kilowatt (kW) 0.75 kW 1.5 kW 2.2 kW 3.0 kW 4.0 kW 5.5 kW 7.5 kW 11.0 kW 15.0 kW
Output Voltage Three Phase 7.0–460 VAC
Rated current 1.95 A 3.7 A 5.2 A 6.8 A 9.2 A 13.0 A 18.0 A 24.0 A 30.0 A
Maximum Output Current * 2.1 A 4.1 A 5.7 A 7.5 A 10.1 A 14.3 A 19.8 A 26.4 A 33.0 A
Input Volts (±10%) 400–460 V~
Maximum Input Current 2.11 A 4.2 A 6.2 A 8.4 A 11.2 A 16.0 A 22.2 A 31.0 A 37.9 A

Table 2.2

6

* = Maximum inverter capacity. Value = 1.1 ×

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03-IRAT

(see page 35).

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2.3 General Drive Specifications

Inverter

Power Ratings

Control

Specifications

Input Frequency 50/60 Hz (±2%)

Phase Imbalance (3 ∅ only) ±2%

Overload Capacity 150% for 60 seconds

Running Torque 100% at 3 Hz

Starting Torque Greater than 100%
Control System Sine-weighted voltage vector (PWM)

PWM Frequency 4–16 kHz (plus Autoselect feature)

Frequency Range 1.00–400.0 Hz programmable in 0.05 Hz increments

(0.1 Hz above 99.95 Hz)

Frequency resolution 0.05 Hz up 0.00 to 99.95 Hz,

0.1 Hz above 100.0 Hz

Minimum Frequency 0.00–400.0 Hz

Maximum Frequency 20.00–400.0 Hz

Preset Speeds Up to 8 available; programmable to maximum frequency

Frequency Command

Selections

Acceleration and Deceleration

Range

V/Hz Ratio 0.19–9.23 V/Hz (230 VAC models)

Torque Limit Automatic or fixed adjustment possible

0–5 VDC, 0–10 VDC, 0–20 mA, 4–20 mA, direct or inverted;

Digital Keypad; Program Memory Unit; Remote Keypad Unit;

external Potentiometer

Programmable 0.1 to 600 seconds to maximum frequency

(2 Each)

0.39–18.46 V/Hz (400 VAC models)

Protection

Features

Operating

Features

Dynamic Braking Up to 60% for 6 sec. with standard DB resistor; higher braking

power values can be achieved by means of an external braking

chopper (option)

Ground Fault Protected from damage

Short Circuit Protected from damage

Motor Overload Programmable inverse time overload trip

Torque Limit All four quadrants individually programmable

Overvoltage Short voltage peaks are bridged; an error is triggered if an ov-

ervoltage lasts for longer than 500 ms

Undervoltage Short voltage dips are bridged; a defined “Restart” is performed

if an undervoltage lasts for longer than 200 ms

Over Temperature Protected from damage, warning display

MOL Input Terminal Programmable for N.C. or N.O. contacts

Operating Controls 1. Keypad.

2. Remote keypad unit.

3. Terminal strip.

4. Program memory unit.

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®

Operating

Features

LED Indicators Red and Green for operation and fault annunciation

Keypad Display 6 digit, backlit LCD with special annunciators

and unit symbols

Auxiliary Relay Programmable analog output;

programmable status signalling relay

Programming Levels Level 1 – Operator

Level 2 – Engineer

Inputs/Outputs Inputs 6 Digital: Pull-up or pull-down logic

2 Analog: VIN1 Current or voltage;

VIN2 Voltage only

Outputs 2 Digital: 1 Open collector (internal or external power supply)

up to 24 VDC;
1 Relay (Form C)

2 Analog: MET1 (0 to 10 VDC);

MET2 (0/4 to 20 mA DC)

Ambient

Conditions

Operating Temperature 0 °C to +40 °C (IP 21 models)

0 °C to +50 °C (with detached cover)

Storage temperature -20 °C to +60 °C

Humidity 90% RH or less, non-condensing
Vibration 0.6 G Maximum

Elevation 1000 Meters (3,300 Feet) without derating

UL-/CSA-

Agency Listings

Certifications

2.4 Dimensional Data (Size I)

6

137

159

12

U

Marked, UL/cUL listed, CSA-certified

U

C

®

®

L

L

Table 2.3

105

5

94

∅ 5.5

Size for devices:

123

3

∅ 22

I

84

30

ACP 3300-3 (230 V)
ACP 3300-5 (230 V)
ACP 3600-7 (400 V)

Weight: 1.4 kg

34

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2.4.1 Dimensional Data (Size II)

6

5

137

159

12

84

38

140
129

2.4.2 Dimensional Data (Size III)

∅ 5.5

∅ 22

II

Size for devices:
ACP 3300-7 (230 V)

ACP 3301-1 (230 V)
ACP 3601-5 (400 V)

Weight: 1.9 kg

54

125

3

220

119

140

129

153

5

188

∅ 5.5

∅ 29

5

Size for devices:

∅ 22

III

ACP 3301-5 (230 V)
ACP 3302-2 (230 V)
ACP 3602-2 (400 V)
ACP 3603-0 (400 V)
ACP 3604-0 (400 V)

41

Weight: 3.45 kg

47

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2.4.3 Dimensional Data (Size IV)

327

280

221

200

∅ 5.5

∅ 29

∅ 35

Size for devices:

IV

180

6

133

46

ACP 3605-5 (400 V)
ACP 3607-5 (400 V)
ACP 3611-0 (400 V)
ACP 3615-0 (400 V)

Weight: 8.6 kg

47

53

10

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3 Installation

3.1 Inspection

A. Upon receipt, unpack and carefully inspect for any damage sustained in transit (depres-

sion in the enclosure, damage to parts, missing parts).

B. Remove the cover (see page 25) and inspect the inverter for any apparent damage or

foreign objects. Ensure that all mounting hardware and terminal connection hardware is
properly seated, securely fastened, and undamaged.

C. Read the technical data label and ensure that the correct rated output and input voltage

for the application has been purchased.

D. If the inverter is to be stored for a long period of time, repack and store in a clean, dry

place, free from direct sunlight or corrosive fumes, and in a location where the ambient
temperature will not be less then -20 °C nor more than +60 °C.

3.2 General Rules for Installation

Improper installation of the inverter will greatly effect its life. Be sure to observe the following
points when selecting a mounting location. VIOLATING THE CONDITIONS LISTED BE-

LOW MAY VOID THE WARRANTY!

A. Mount the unit vertically and do not restrict the airflow to the heat sink fins on the back

of the controller. The fan and fins allow cooling of internal components. Any air restric­tion could greatly reduce the life of the inverter, as well as resulting in nuisance overtem­perature trips.

B. The ACP inverter generates heat, and therefore there must be a sufficient amount of

free space around the unit (see Figure 3.1). If the unit is accommodated in a housing
together with a different unit, the prescribed minimum distances must be observed so
that adequate ventilation can be ensured.

Figure 3.1

C. If the inverter has to be installed in a different position, external cooling is required for

full capacity utilization. In certain circumstances, the internal air circulation does not suf­fice when installing the unit in a control cabinet with a small volume. Therefore, when
installing the unit, you must ensure that a heat buildup is prevented.

D. Do not mount the ACP near heat generating equipment, or in direct sunlight. BERGES

inverters are generally designed so that they can be operated at ambient temperatures
of 0 °C to +50 °C (IP 00) or 0 °C to 40 °C (IP 21) and at a relative humidity of up to 90%.

The occurrence of condensate must be avoided!

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E. Do not install the inverter in a place subjected to high temperature, high humidity, or ex-

cessive vibration (see Table 2.3, “Ambient Conditions”)

F. The units should never be installed in the proximity of corrosive or flammable gases,

conductive dust or large magnetic and electric fields.

G. Pay close attention during installation to ensuring that no objects (such as drilling swarf,

wire or anything else) fall into the unit. Otherwise, a device fault cannot be excluded,
even after longer periods of operation.

ATTENTION!

H. Do not use wire end ferrules for the control terminals. The terminals are designed

so that the wires can be inserted in the terminals after twisting the individual
wires.

I. Table 3.1 shows the watts generated by the inverter when at full current. The heat gen-

erated is dependent on the carrier frequency used. For carrier frequencies other than
those shown in Table 3.1, consult BERGES or use the worst-case scenario (16 kHz car­rier).

HEAT GENERATED BY INVERTER (IN WATTS)

Inverter Model Number @ 4 kHz Carrier @ 16 kHz Carrier

3300-3 19 27
3300-5 37 42
3300-7 66 75
3301-1 66 75
3301-5 70 79
3302-2 129 154
3600-7 40 62
3601-5 67 99
3602-2 118 186
3603-0 184 281
3604-0 184 281
3605-5 280 640
3607-5 360 790
3611-0 470 1120
3615-0 610 1400

Table 3.1

3.3 EMC (Electromagnetic Compatibility)

3.3.1 Suggestion on how to solve the Problem of Radio Frequency Interference
Suppression of Frequency Converters to VDE 0875/EN 55011

It is necessary to connect a mains filter type “BE/(xxx) xxxx” before every frequency con­verter. The size (xxx) depends on the rated current of the unit. A motor choke can be dis­pensed with.

HINT!

The motor choke type BV... may be necessary as from a cable length in excess of 20 m and
when operating several motors in parallel on one frequency converter output. This choke
attenuates the capacitive earth leakage currents and considerably reduces wire-borne in­terference voltages.

12

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The converter and accessories must be wired in accordance with the following schematic.
To render the remaining interference voltage at the PE conductor potential ineffective for
“external measurement systems”, the following proposed circuit will achieve successful re­sults if applied consistently.

3.3.2 Mains Filters/Output Chokes

ACP 3000

DEVICE TYPE MAINS FILTER ARTICLE NO. INPUT PHASES VOLTAGE (V) CURRENT (A) WEIGHT (kg) FOOTPRINT
ACP 3300-3 BE I 1005 32501739 1~ 250 5 0.60

ACP 3300-5 BE I 1005 32501739 1~ 250 5 0.60
ACP 3300-7 BE II 1010 32501740 1~ 250 10 0.70
ACP 3301-1 BE II 1010 32501740 1~ 250 10 0.70
ACP 3301-5 BE III 1020 32501741 1~ 250 20 1.05
ACP 3302-2 BE III 1020 32501741 1~ 250 20 1.05
ACP 3600-7 BE I 3003 32501742 3~ 380/480 3 0.75
ACP 3601-5 BE II 3005 32501743 3~ 380/480 5 0.80
ACP 3602-2 BE III 3012 32501744 3~ 380/480 12 1.15
ACP 3603-0 BE III 3012 32501744 3~ 380/480 12 1.15
ACP 3604-0 BE III 3012 32501744 3~ 380/480 12 1.15
ACP 3605-5 BE IV 3038 32501745 3~ 380/480 38 1.90
ACP 3607-5 BE IV 3038 32501745 3~ 380/480 38 1.90
ACP 3611-0 BE IV 3038 32501745 3~ 380/480 38 1.90
ACP 3615-0 BE IV 3038 32501745 3~ 380/480 38 1.90

(1) FOOTPRINT means that these filters have been prepared for the installation of an ACP converter on the filter (securing).

(1)

(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)

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ACP 3000

DEVICE TYPE CHOKE ARTICLE NO. INPUT PHASES VOLTAGE (V) CURRENT (A) WEIGHT (kg) FOOTPRINT
ACP 3300-3 BV 20394/307 32501345 – 440 7 0.25 –
ACP 3300-5 BV 20394/307 32501345 – 440 7 0.25 –
ACP 3300-7 BV 20394/307 32501345 – 440 7 0.25 –
ACP 3301-1 BV 20394/307 32501345 – 440 7 0.25 –
ACP 3301-5 BV 20394/307 32501345 – 440 7 0.25 –
ACP 3302-2 BV 20394/313 32501346 – 440 13 0.70 –
ACP 3600-7 BV 20394/307 32501345 – 440 7 0.25 –
ACP 3601-5 BV 20394/307 32501345 – 440 7 0.25 –
ACP 3602-2 BV 20394/307 32501345 – 440 7 0.25 –
ACP 3603-0 BV 20394/307 32501345 – 440 7 0.25 –
ACP 3604-0 BV 20394/313 32501346 – 440 13 0.70 –
ACP 3605-5 BV 20394/313 32501346 – 440 13 0.70 –
ACP 3607-5 BV 20394/325 32501347 – 440 25 1.10 –
ACP 3611-0 BV 20394/325 32501347 – 440 25 1.10 –
ACP 3615-0 BV 20394/330 32501348 – 440 30 1.15 –

3.3.3 Filter Specifications

ATTENTION!

14

All BERGES line filters are provided in IP20 enclosures. They can operate over a temper­ature range of -10 to +50 °C (-23 to +122 °F). The filters can be mounted parallel or per­pendicular to the control panel. The filter is supplied with the correct mounting hardware for
mounting the inverter on top of the filter enclosure (Footprint).

The mains filters and chokes must be installed and connected in conformity with the rec­ommendations given in chapters 3.3.1 (page 12), 3.3.4 (page 15) and 3.6.3 (page 22).

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TYPE OUTER DIMENSIONS SECURING SECURING ON THE

CONNECTIONS FOOT-

INVERTER

A B C D E F G H I J (PE) K

BE I 1005 200 108 40 183 80 M5 137 94 M5 M4
BE II 1010 200 145 40 183 110 M5 137 129 M5 M4
BE III 1020 250 145 45 235 110 M5 188 129 M5 M4
BE I 3003 200 108 40 183 80 M5 137 94 M5 M4
BE II 3005 200 145 40 183 110 M5 137 129 M5 M4
BE III 3012 250 145 45 235 110 M5 188 129 M5 M5
BE IV 3038 360 222 50 342 160 M6 280 200 M6 M5
BE V 3012 360 222 50 342 160 M6 280 200 M6 M5
BE VI 3040 496 232 50 478 180 M6 419 200 M6 M5

Table 3.2

NOTE: Dimensions in mm.

(1)

3.3.4 Interference Suppression Measures

2,5 mm
2,5 mm
2,5 mm
2,5 mm
2,5 mm
2,5 mm

16 mm
16 mm
16 mm

PRINT

2(1)

2(1)

2(1)

2(1)

2(1)

2(1)

2(1)

2(1)

2(1)

Electrical/electronic devices are capable of influencing or disturbing each other through
connecting cables or other metallic connections. “Electromagnetic compatibility” consists of
the factors “interference resistance” and “interference emission”. Correct installation of

the inverter in conjunction with any possible local interference suppression meas­ures has a crucial effect on minimizing or suppressing mutual interference.

(1) FOOTPRINT means that these filters have been prepared for the installation of an ACP converter on the filter (securing).

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The scope of noise suppression measures depends on the limit value class, the local situ­ation and the application.

The following notes refer to a mains power supply that is not “contaminated” by high fre­quency interference. Other measures may be necessary to reduce or suppress interference
if the mains voltage is “contaminated”. No generally valid recommendations can be given
in such cases. Please consult BERGES if all recommended interference suppression
measures should not produce the desired result.

Basically, it is not the cross section of the conductor that is important for radio-frequency
interference suppression but the surface area. Since the high-frequency interference does
not flow through the entire cross section but mainly on the outer surface of the conductor
(skin effect), braided copper tapes of corresponding cross section should be used.

All conductive housing parts must be interconnected using corresponding lines. Minimum
cross sections are prescribed for a fault case at 50 Hz (referred to the range of the safety
regulations) which must be observed under all circumstances.

The inverter and all other components used for interference suppression (especially also
the shield of the motor cable) should be contacted over as large an area as possible when
connected to metal (control panels, switchgear cabinets and similar) (skin effect). Remove

the paint at the respective areas to ensure good contacting over a large area!

A central earthing point should be used for interference suppression (e.g. equipotential
bonding strip or centrally at an interference suppression filter). The earthing lines are routed
to the respective terminals radially from this point. Conductor loops of the earthing lines
are impermissible and can lead to unnecessary interference.

The shield cross section must not be reduced when the shield is connected to continuing
lines. This would give rise to RF resistance at a cross section reduction, and the resulting
RF energy would consequently not be discharged but radiated. Shields – particularly
shields of control lines – must not be contacted via pin contacts of plug connectors. In these
cases, the metallic hand guard of the plug connector should be used for large-area connec­tion of the shield.

Use a shielded motor cable (earthed over a large area at both sides). The shield should be
routed uninterrupted from the PE terminal of the inverter to the PE terminal of the motor.
If a shielded motor line cannot be used, the unshielded motor line should be laid in a metal
duct. The metal duct must be uninterrupted and adequately earthed. The following points
are prescribed if radio interference suppression is to be realized in accordance with EN
55011, EN 55014 and EN 50081-1:

• Preceding the unit by a mains filter or a mains filter and a output choke (mains filter and
output choke not included in the scope of delivery).

• Laying the motor cable in a shielded configuration.

• Laying the control cable in a shielded configuration.

• Observe general RFI suppression measures (refer to the chapters 3.3.1 and 3.3.4).

Lay motor, mains power and signal cables as far away from each other as possible and sep­arately.

If a mains filter is used, the smallest possible spatial distance from the frequency inverter
must be selected so that both units can be connected by short connection leads.

If an output choke is used (option), it must be fitted in the direct vicinity of the inverter and
connected to the inverter via screened cables earthed at both ends.

16

Shielded signal cables should be laid at a minimum distance of 10 cm from power cables
running parallel. A separate earthed metal cable duct is advisable for such signal cables. If
signal cables intercept with a power cable, they should do so at an angle of 90°.

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Control lines longer than 1 m must be laid with a shield and earthed at one side on the fre­quency inverter. The screen is earthed via terminal “CM” in the case of pull-up logic and
pull-down logic (see “Connection Diagrams”, chapters 7.1 to 7.7). If cables have lengths in
excess of 10 m, use a 0–20 mA control signal because of the possibility of parasitics. The
inverter can be switched over to this mode of operation. See parameter

5.2, page 38).
Other loads connected to the mains may produce voltage spikes that may interfere with

functioning of the inverter or may even damage it. Chokes or mains filters can be used on
the mains side to protect the inverter against voltage spikes (resulting from switching large
loads to the mains). Such chokes and filters are available as accessories.

If inverters are operated in switchgear devices or in their close proximity (e.g. in one com­mon control cabinet) in connection with the same power mains, we recommend the follow­ing precautionary measures to suppress interference in the switchgear:

• Wire the coils of contactors, switchgear devices and relay combinations with “RC ele­ments” or with free-wheel diodes.

• Use shielded cables for external control and measuring cables.

• Lay disturbing cables (e.g. power and contactor control circuits) separately and at a dis­tance from the control cables.

3.4 EMC Ordinance (EMC Directive, 89/336 EEC)

24-FSEL

(chapter

HINT!

The frequency inverters were tested in the form of a practical test set-up in a switchgear
cabinet (in accordance with our interference suppression measures in these operating in­structions: “EMC (electromagnetic compatibility)”. The limit values of the standards below
were fulfilled under these conditions:

EMA (Electromagnetic Emission)

EN 50081-1 Basic specification “Emitted interference” (Limit value class A)
or
EN 50081-2 Basic specification “Emitted interference” (Limit value class B)
EN 55011 Emitted interference

EMB (Electromagnetic Interference)

EN 50082-2 Basic specification “Interference immunity”
EN 50140 Electromagnetic fields
EN 60801 Static discharge (ESD)
IEC 801-4 Burst on mains lead/data line

At least the following conditions must be fulfilled for compliance with
the limit values of the aforementioned standards:

• Installation of a mains filter or a mains filter and a motor choke (mains filter and motor
choke are not included in the scope of delivery).

• Laying the motor cable in a shielded configuration.

• Laying the control cable in a shielded configuration.

• Observe general RFI suppression measures (refer to the chapters 3.3.1 and 3.3.4).

As the aforementioned interference resistance tests are based on standardised mains con­ditions, in extreme cases it may happen that the function of the inverter will be lost (mini­mum operating quality). This malfunction can generally be remedied by a RESET of the
inverter. Refer to the chapter entitled “Resetting a Fault” and “Fault Codes” on page 63.

Detailed information and technical data relating to adapted mains filters and chokes can be
found in the chapters 3.3.2, “Mains Filters/Output Chokes” and 3.3.3, “Filter Specifications”.

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3.5 Wiring Practices

3.5.1 Applicable Codes

Pay conscientious attention to ensuring that the installation wiring is installed at least in con­formity with the NEC standards. Where local codes exceed these requirements, they must
be followed.

All models are listed by the Underwriters Laboratories, Inc. (UL) and are certified by the Ca­nadian Underwriters Laboratories (cUL) and therefore conform to the requirements of NEC
and CEC. Installations that are to meet the requirements of UL and cUL must be realised
in conformity with the UL and cUL specifications. Refer to the corresponding electrical data
on the rating plates of the ACP 3000 unit and the motor.

3.5.2 Power Wiring

Power wiring are those wires which are connected during installation to the power circuit
terminals, L1, N, L2, L3, M1, M2, and M3. Power wiring must be selected as follows:

1. Use only VDE, UL or cUL recognized wire.

2. Wire voltage rating must be a minimum of 300 V for 230 VAC systems, and 600 V for
400 VAC systems.

ATTENTION!

3.5.3 Control Wiring/Interface

ATTENTION!

3. The core cross section and the associated fuse are given in the tables in chapter 3.6.2,
page 22. The wires must consist of copper and be designed for insulation temperatures
of 60 °C or 75 °C.

4. Grounding must be in accordance with VDE, NEC and CEC.

NOTES:
Never connect input AC power to the motor output terminals M1, M2 and M3 or dam-

age to the drive will result.

The output voltage of variable-frequency controllers contains high-frequency components
that might cause disturbances in other installations. Therefore, avoid laying control cables
and mains input cables in the same cable duct or conduit together with the output cables
from the converter to the motor (see also chapter 3.3.4, “Interference Suppression Meas­ures”).

All interfaces or control inputs and outputs possess only basic insulation by the
mains and must be incorporated in a further protective measure.

Use a dummy plug as additional protection if interface J22 is not allocated.

This is wiring connected to the control terminal strip (20 terminals). It must be selected as
follows:

1. Shielded wire is recommended to prevent electrical noise interference from causing im­proper operation or nuisance tripping. Only connect the screen on one end to the “CM”
terminal on the converter’s control terminal strip (see also chapter 3.3.4, “Interference
Suppression Measures”).

18

2. Use only VDE, UL or cUL recognized wire.

3. Wire voltage rating must be a minimum of 300 V for 230 VAC systems, and 600 V for
400 VAC systems. This is Class 1 wire.

4. Never run the control wiring in the same conduit or raceway with power wiring.

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5. Do not use wire end ferrules for the control terminals. The terminals are designed

so that the wires can be inserted in the terminals after twisting the individual
wires.

3.6 Mains Power Connection

The frequency inverters are designed for installation in a switchgear cabinet and for
permanent connection.

To guarantee lasting operating safety and reliability, the inverter must be connected expert­ly in accordance with the valid electrical standards. Attention must be paid to good insula­tion from earth potential on the power terminals.

An AC system with a nominal voltage of 230 V (50/60 Hz) must be connected to mains ter­minals L1, N and PE or a three-phase system with a nominal voltage of 400 V (50/60 Hz)
to terminals L1, L2, L3 and PE (pay attention to rating plate). The neutral point must be
earthed (TN-C system).

Ensure a voltage balanced to earth or phase to phase when feeding in the mains power
through an isolating transformer (star point must be earthed).

Frequency inverters must not be connected via a residual-current-

operated circuit-breaker as the sole protective measure!

The single exception below permits connection of a frequency inverter via a residual-cur­rent-operated circuit-breaker as the sole protective measure:

• Installation of a residual-current-operated circuit-breaker of the newest design for fre-

quency inverters up to 4 kVA (input voltage 1 × 230 V) with MOBILE connection.

This residual current-operated circuit breaker must be suitable for alternating and pul­sating DC leakage current. Residual-current-operated circuit-breakers of this type bear

the symbol .

Reliable tripping of the residual-current-operated circuit-breaker is not ensured in
the case of frequency inverters up to 4 kVA (input voltage 3 × 400 V) with MOBILE
connection; an additional protective measure must be used for this reason. Also see

the diagram below.

In the case of frequency inverters with PERMANENT connection (input voltage 1 ×
230 V and 3 × 400 V), another protective measure must always be used in addition to
the residual-current-operated protective device. Also see the diagram below.

The protective function of the residual-current-operated circuit-breaker is no longer ensured
due to leakage currents from interference suppression capacitors in the inverter and DC
components in the fault current. All devices connected to this residual-current-operated cir­cuit-breaker (and persons touching them) are no longer protected in the event of a fault.

21.12.98 Operating manual
04_GB ACP 3000 — 0.37–15.0

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