janitza Active Harmonics Filter User manual

Doc. no. 2.100.024.1d 07/2019
Janitza electronics GmbH
Vor dem Polstück 6
D-35633 Lahnau
Phone support: [phone]
Email: [email protected]
www.janitza.de
www.janitza.de
Janitza AHF
Active
Harmonics Filter
User manual

Janitza AHF
2
Janitza electronics GmbH offers their customers comprehensive technical support. Users can
contact their local representative or the company's customer service center, or the head office
directly, if they have any questions.
All rights reserved.
JANITZA AHF
ACTIVE HARMONICS FILTER
Doc. no.: 2.100.024.1d
Date: 07/2019
Subject to technical changes.
The contents of our documentation have been compiled with great care and reflect the current state
of the information available to us. Nonetheless, we wish to point out that updates of this document
are not always possible at the same time as technical refinements are implemented in our products.
Information and specifications can be changed at any time.
Please see our website under www.janitza.de for the current version.

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The settings in the Parameter Settings menu are password
protected (see section 8.1.3).
Please cut out this section and keep it in a safe place!
User password: 080808

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Contents
1. Information on the device and the user manual 6
1. 1 Disclaimer 6
1. 2 Copyright notice 6
1. 3 Technical changes 6
1. 4 Defective device/disposal 6
2. Safety 7
2. 1 Symbols used 7
2. 2 Safety measures 8
2. 3 Electrically qualified personnel 8
2. 4 Intended use 8
2. 5 Warranty in the event of damage 8
2. 6 Information on setting up the device 9
2. 7 Information on storage 9
2. 8 Standards 10
3. Scope of delivery 11
3. 1 Accessories (optional) 11
4. Product description 12
4. 1 Device description 12
4. 2 Type designation 12
4. 3 Product features 13
4. 4 Dimensional drawings 14
4. 5 Operating principle 16
5. Installation and power connection 18
5. 1 Before installation 18
5. 2 Electrical connection 21
5. 2. 1 Closed loop 21
5. 2. 2 Open loop 22
5. 2. 3 Electrical connection of an AHF single module 23
5. 2. 4 Location of the current and signal interfaces 24
5. 3 Electrical connection of more than one module with LCD display 27
5. 3. 1 Electrical connection of modules with LCD display
with different capacities 29
5. 4 Electrical connection of several modules without display 30
5. 4. 1 Electrical connection of the AHF R 400 V 50 A AHF 30
5. 4. 2 Electrical connection of modules without display with
different capacities 32
5. 5 Installation of the current transformers 33
5. 5. 1 Current transformer selection 34
5. 5. 2 CT installation on the load side (open loop) 35
5. 5. 3 CT installation on the grid side (closed loop) 37
5. 5. 4 Connection of an AHF to a Janitza UMG 40

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6. Commissioning 41
6. 1 Before switching on the installation 41
6. 2 Procedure for switching on the installation 41
6. 3 Procedure for switching off the installation 42
6. 3. 1 Automatic powering on 43
6. 4 Emergency stop (optional) 43
7. Precautionary measures during maintenance 44
8. System operation 45
8. 1 Monitoring and troubleshooting of models with LCD 45
8. 1. 1 4.3-inch LCD screen 45
8. 1. 2 The “Data” button 46
8. 1. 3 The “Parameters” button 50
8. 1. 4 The “Measurement” button 56
8. 2 System operation with more than one module with display 62
8. 3 Monitoring and troubleshooting of modules without display 63
8. 3. 1 7-inch LCD screen 63
8. 3. 2 The “Info” button – Realtime information 65
8. 3. 3 The “Settings” button 67
8. 3. 4 The “Records” button 70
8. 3. 5 The “Help” button 71
8. 3. 6 The “About” button 71
8. 3. 7 Menu description 72
8. 4 System operation with more than one module without display 75
9. Troubleshooting 78
Appendix 1 – Part numbers 79
Appendix 2 – Technical data 80
Appendix 3 – Selection of cables and accessories 82
Appendix 4 – Modbus protocol 83

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1.1 Disclaimer
Compliance with the informational products for the device is a prerequisite for safe opera-
tion and attaining the stated performance characteristics and product features.
Janitza electronics GmbH assumes no liability for bodily injury, material damage or finan-
cial losses which result from disregard of the informational products.
Ensure that your informational products are readily accessible in a legible form.
1.2 Copyright notice
© 2018 - Janitza electronics GmbH - Lahnau. All rights reserved.
Any reproduction, processing, distribution or other use, in whole or in part, is prohibited.
All trademarks and the rights arising from them are the property of the respective owners
of these rights.
1.3 Technical changes
· First read and understand the documents associated with the product.
· Keep the documents associated with the product available for the entire service life and
pass them on to any possible subsequent users.
· Find out about device revisions and the associated modifications of the documentation
associated with your product at www.janitza.de.
1.4 Defective device/disposal
Before sending defective devices (components) back to the manufacturer for testing (in-
cluding accessories), please contact the manufacturer’s support department. When doing
so, please bear the terms for transportation in mind.
Do not attempt to open or repair the device (the component) on your own because other-
wise all warranty claims become invalid!
For the disposal of the device (the component), please observe national and international
regulations!
Dispose of individual parts, as applicable, depending on their composition and existing
country-specific regulations, e.g. as:
· electronic waste,
· standard batteries and rechargeables,
· plastics, or
· metals.
If needed, engage a certified disposal company to handle scrapping.
1. Information on the device and the user manual

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2. Safety
Be certain to read and understand the documents associated with this device and its com-
ponents before using it. The following safety information provides an overview of safety
measures required for the operation of the device and its components. Please observe the
safety information and warning notices to ensure your personal safety and avoid material
damage.
Special operating conditions can require additional measures! Please also observe
the special safety information that is listed in the respective documents on the devic-
es and their components. Documentation associated with the product can be found
on our website at www.janitza.de > Support > Downloads.
2.1 Symbols used:
This additional symbol on the device or the component itself indicates
an electrical hazard that can lead to severe injury or death.
This general warning symbol draws attention to a possible risk of injury.
Be certain to observe all of the information listed under this symbol in
order to avoid possible injury or even death.
ATTENTION
Draws attention to an immediately haz-
ardous situation which, when disregarded,
can lead to material or environmental
damage.
NOTE
Supplementary note for which there is no
danger of injury or material damage.
Warning and safety information is marked by a warning symbol, and the hazard levels are
shown as follows, depending on the degree of hazard:
DANGER
Draws attention to an immediately hazardous situation which,
when disregarded, leads to severe or fatal injury.
WARNING
Draws attention to an immediately hazardous situation which,
when disregarded, can lead to severe or fatal injury.
CAUTION
Draws attention to an immediately hazardous situation which,
when disregarded, can lead to minor or moderate injury.

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2.3 Electrically qualified personnel
To avoid bodily injury and material damage, only electrically qualified personnel are permit-
ted to work on the devices and their components, assemblies, systems and current circuits
who have knowledge of:
• the national and international accident prevention regulations,
• safety technology standards,
• installation, commissioning, operation, disconnection, grounding and marking of electri-
cal equipment,
• the requirements concerning personal protective equipment.
Electrically qualified persons within the scope of the technical safety information of all doc-
uments associated with the device and its components are persons who can furnish proof
of qualification as an electrically skilled person.
2.4 Intended use
The devices and their components are:
· not intended for installation in vehicles! Use of the devices and their components in
non-stationary equipment constitutes an exceptional environmental condition and is only
permissible by special agreement.
· not intended for installation in environments with harmful oils, acids, alkalis, gases, vapors,
dusts, radiation, etc.
Safe and trouble-free operation of the devices and their components presupposes proper
transport, proper storage, set-up and assembly as well as operation and maintenance in
addition to compliance with the safety information and warning notices.
2.5 Warranty in the event of damage
Any unauthorized tampering with or use of the device constitutes "misuse" and/or "negli-
gence" under the product’s warranty and thus voids the warranty of any possible resulting
damage.
2.2 Safety measures
When operating electric devices, it is unavoidable for certain parts of these devices to con-
duct hazardous voltage. Consequently, severe bodily injury or material damage can occur if
they are not handled properly:

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2.6 Information on setting up the device
• Do not set up the device in areas with high air humidity.
• Keep it away from the proximity of flammable liquids, gases or explosive materials.
• Ensure there is enough space in front of and behind the system for adequate ventilation
and/or for maintenance work.
• To ensure safe operation of the AHF and prevent overheating:
- provide adequate air circulation in your installation environment and, as needed, cool-
ing when the temperatures are high.
- the air inlets and outlets must not be blocked.
• Reduce the risk of fire or electric shock.
• Ground the device!
• When installing wiring, bear the compensation capacity and the current-carrying capac-
ity in mind.
• Ensure that there is no corrosive gas or electrically conductive dust in the work environ-
ment.
• The operating temperature must lie in a range between-10° C and 40° C.
The internal temperature monitoring switches the AHF off if a temperature limit value is
exceeded.
• When using a forklift or other aids for transporting the device, the load-bearing capacity
must be adequate. Check the weight of the AHF as defined in Appendix 2.
2.7 Information on storage
• Store the AHF in its original packaging in a dry, well ventilated room.
• Store only at a temperature of -40° C to 70° C and a relative humidity between 5% and
95 %.

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2.8 Standards
The product complies with the following standards for safety and electromagnetic
compatibility:
1. IEEE519-1992: Recommended Practices and Requirements for Harmonic Control in
Electrical Power Systems;
2. GB 7251.1-2013: Low-voltage switchgear and controlgear assemblies Part 1: General rules
GB/T 7251.8-2005: Low-Voltage Switchgear and Controlgear Assemblies – General
Technology Requirements for Intelligent Assemblies;
3. GB/T 15576-2008: The Specifications of Low-Voltage Reactive Power Steady Compen-
sation Equipment;
4. IEC 61000-6-2:2016-05: Electromagnetic Compatibility (EMC) Part 6-2: Generic Stan-
dards – Immunity for Industrial Environments;
5. IEC 61000-6-4:2018: Electromagnetic Compatibility (EMC) – Part 6-4: Generic Standards
– Emission Standard for Industrial Environments (only for 50 A model to pass);
6. IEC 61000-4-2:2008: Electromagnetic Compatibility – Testing and Measurement Tech-
niques – Electrostatic Discharge Immunity Test;
7. IEC 61000-4-3: 2011-4: Electromagnetic compatibility (EMC) – Testing and measurement
techniques - Radiated, radio-frequency, electromagnetic field immunity test
8. IEC 61000-4-4: Electromagnetic compatibility (EMC) – Part 4-4: Testing of interference
immunity
9. IEC 61000-4-5:2015-03: Electromagnetic compatibility (EMC) – Testing and measure-
ment techniques - Surge immunity test
10. IEC 61000-4-11:2005-02 Electromagnetic compatibility (EMC)
– Testing and measurement techniques – Voltage dips, short interruptions and voltage
variations immunity tests
11. IEC 61000-4-6: 2014-08 Electromagnetic compatibility – Testing and measurement tech-
niques – Immunity to conducted disturbances, induced by radio frequency fields
12. IEC 60068-2-6: 2008-10: Environmental testing – Tests Part 2-6: Tests – Test Fc: Vibra-
tion (sinusoidal);
13. IEC 60068-2-27: 2010-2: Environmental testing – Tests Part 2-27: Tests
– Test Ea and guidance: Shock;
14. EN 50178:1998-04: Electronic equipment for use in power installations;
15. EN 61000-6-2:2005: Part 6-2: Generic standards – Immunity for industrial environments.

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3. Scope of delivery
Quantity Designation
1 Active Harmonics Filter AHF part no. (14.200.XX 1))
1 User manual, english
1 Cover
6 Resistor B2508 blue 2.5 mm²
10 Screw, 4 x 8
1 Resistor 1/4W -120Ω±1%
4 Spacer washers
4 Washers
4 Screws
1) Part number as per delivery note
Quantity Designation
1 HMI 7-inch monitor with touch display (part no. 15.063.21)
3.1 Accessories (optional)

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4. Product description
4.1 Device description
Active Harmonics Filters (AHF for 3-/4-lead connection) from the AHF series are suitable
for dynamic compensation of harmonics currents, inductive and capacitive reactive power
components, and for the balancing of circuits with asymmetrical loads. Low-feedback and
low-loss operation is achieved by means of a 3-level topology and a high clock frequency.
Furthermore, the AHF enables easy integration into existing low-voltage networks by
means of intelligent resonance detection (intelligent FFT).
Their modular system makes AHFs suitable for easy adaptation to modified network and
load conditions. They are characterized by a freely configurable compensation rate for each
individual harmonic (even and odd-numbered), compensation of the neutral conductor cur-
rent in the 3-wire system with N-conductor and by automatic mains frequency detection.
The compensation strategy can be modified during ongoing operation. The configurable
standby operation in dependence on the voltage distortion (THD) and/or the imbalance
as well as an automatic restart after a voltage loss all ensure reliable operation of the AHF
power quality controller.
The suppression of harmonics currents requires the connection of an external current
transformer (referred to as CT (current transformer) in the following) that detects any
harmonics current.
The following types can be used:
4.2 Type designation
Figure 2-1: Type designation example for AHF-LCD W 400V 50A
LCD
R: Rack* ; W: Wall*
Capacity: 25 A/ 35 A/ 50 A/ 60 A/
75 A/ 100 A/ 150 A
AHF: Active Harmonics Filter
AHF LCD W 400 V 50 A
400 V - voltage
* Rack – The device is mounted in a rack
* Wall – The device is mounted on the wall
Type
Capacity
25 A 35 A 50 A 60 A 75 A 100 A 150 A
Rack module
With display XXXXXXX
Without display XXXXXXX
Wall module
With display XXXXXXX
Without display On request

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4.3 Product features
• Dynamic compensation of harmonics currents
• Inductive and capacitive reactive power components
• Simultaneous harmonic compensation,
power factor correction and balancing of asymmetrical
loads
• Automatic resonance detection
• Compensation of the neutral conductor current in the
4-lead connection
• Simultaneous compensation of the 2nd - 50th harmonic
with a fixed compensation frequency;
• Power factor correction: fast (ms reaction time), exact
power factor correction (-1.0<cosφ<1.0)
• Compensation strategy can be modified during ongoing
operation
• Freely configurable compensation rate for each individual
harmonic (even and odd numbered)
• Modular system for easy adaptation to modified network
and load conditions
• Automatic mains frequency detection
• Suitable for installation sites with poor mains power
quality: (broad input voltage and frequency range)
228 V - 456 V
• Low-feedback and low-loss operation
• High clock frequency
• Standby operation in dependence on the voltage
distortion (THD) and/or the imbalance
• Automatic restart after voltage loss
• User friendly user interface: Automatic error messages,
fault messages and operating log
* Figure: Rack module
* Figure: Wall module

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Figure 2-2 External dimension of rack modules
Figure 2-3 External dimension of wall modules
Depth
Height
Width
Depth
Width
Height
4.4 Dimensional drawings

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Designation Width
(mm) Height (mm) Depth (mm)
AHF-LCD W 400 V 25 A 440 470 150
AHF-LCD W 400 V 35 A 440 470 150
AHF-LCD W 400 V 50 A 440 610 190
AHF-LCD W 400 V 60 A 440 610 190
AHF-LCD W 400 V 75 A 440 625 234
AHF-LCD W 400 V 100 A 440 625 234
AHF-LCD W 400 V 150 A 500 557 286
AHF-LCD R 400 V 25 A 440 490 150
AHF-LCD R 400 V 35 A 440 490 150
AHF-LCD R 400 V 50 A 440 590 190
AHF-LCD R 400 V 60 A 440 590 190
AHF-LCD R 400 V 75 A 440 625 234
AHF-LCD R 400 V 100 A 440 600 273
AHF-LCD R 400 V 150 A 500 520 270
AHF R 400 V 25 A 440 490 150
AHF R 400 V 35 A 440 490 150
AHF R 400 V 50 A 440 590 190
AHF R 400 V 60 A 440 590 190
AHF R 400 V 75 A 440 625 234
AHF R 400 V 100 A 440 600 273
AHF R 400 V 150 A 500 520 270
Table: Dimensions

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4.5 Operating principle
In industrial operations, for example in the packaging industry, in welding processes or in
biomass power plants, electric motors and pumps with variable frequency drive technolo-
gy are being employed more and more commonly. In building engineering as well, energy
efficient lighting, laptops and desktop computers are by now standard equipment. Power
electronics like this, consisting of thyristors and power capacitors, among other things,
have a negative influence on the power quality. Moreover, behavior in energy distribution
networks is influenced negatively by network imbalances.
Use of the AHF reduces grid distortions:
• Reduction of the harmonics load
• Reduction of outage costs, e.g. for frequency converters
• Automatic detection of resonance points
• Individual compensation and dynamic filtering possible
Reduced losses due to 3-level topology: Twice as many IGBTs, lower losses, lower grid
disturbance levels
The AHF detects the current load by means of the external current transformer (CT) in
realtime and analyzes the harmonic component. After the data analysis, the controller
regulates the IGBTs inside the AHF by means of PWM signals and causes the inverter to
generate a feedback current of the same order of magnitude as the load harmonic. The
feedback current is fed into the power grid to compensate the harmonic current.
Figure 2-4 Compensation of the harmonics current provided by the Janitza AHF

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Figure 2-5 Three-level topology of the inverter
As shown in Figure 2-5, a 3-level topology is employed in the Janitza AHF, whereby each
phase branch consists of four IGBTs and two diodes.
As an example, phase branch A will be considered:
• When Sa1, Sa2 are switched on and Sa3, Sa4 are switched off, the voltage between
point A and point O (VAO) is Vdc/2;
• When Sa2, Sa3 are switched on and Sa1, Sa4 are switched off, point A is connected to
point O so that VAO is equal to 0;
• When Sa3, Sa4 are switched on and Sa1, Sa2 are switched off, VAO is equal to -Vdc/2.
Each phase branch is able to output three states for one voltage level.
The output terminal of each phase branch is connected to the power grid via the
inductance. This charges and discharges continuously to compensate the
harmonics current, subject to the combined influence of the 3-level inverter and the grid
voltage.

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5. Installation and power connection
5.1 Before installation
Take note of the safety information (chapter 2)!
Check the line marking of the input terminals and the line marking of the external current
transformer (CT). Check the wire diameter and the phase sequence of the input current for
correctness. The power data of the input line can be found in the technical specifications in
Appendix 3.
Since the power and signal interfaces of the AHF modules are identical, the description
here only covers the installation and electrical connection of one of the modules with dis-
play/without display of the same capacity level.
As shown in Figure 3-1, the rack module must be installed in the switchboard cabinet.
Observe the factory specified drilled holes as marked in Figure 3-1 for the installation of a
single module.
The wall module must be fastened to a solid wall, whereby the specified size and location
of the drilled holes for the installation are shown in Figure 3-2.
Connection options:
ATTENTION
Material damage due to disregard of the mounting instructions!
Disregard of the installation instructions can damage or destroy your
device and its component.
Therefore please abide by the following:
• Maintain the minimum distances during installation!
• Provide adequate air circulation in the installation environment and, as
needed, cooling when the ambient temperatures are high!
• Ground current-conducting switchboards!
• Follow the installation instructions in the documents that belong to
the device and its components!
NOTE
All AHF modules have identical current and signal interfaces.
The description of the installation provided is based on the example of the
filter AHF-LCD W 400 V 50 A
Network system 3 phase 3 phase with
N-conductor
Rack module with LCD display X X
Wall module with LCD display X X
Rack module without display X X

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WARNING
Risk of injury due to electrical voltage!
Severe bodily injury or death can result! Therefore please abide by the following:
• Switch off your installation before commencing work! Secure it against being
switched on! Check to be sure it is de-energized! Ground and short circuit! Cover or
block off adjacent live parts!
• During operation and troubleshooting, check the environment for dangerous voltag-
es and switch these off if necessary!
• Wear protective clothing and protective equipment in accordance with applicable
guidelines when working on electrical systems!
• Before making connections to the device/the component, ground the device by
means of the ground wire connection, if present.
• Do not touching bare or stripped leads that are energized!
Equip stranded conductors with wire ferrules!
• Hazardous voltages can be present in all circuitry parts that are connected to the
power supply.
• Protect the feeders with suitable line circuit breakers/fuses!
• Never switch off, remove or tamper with safety devices!
• There can still be hazardous voltages present in the device or in the component
even after it has been disconnected from the supply voltage (capacitor storage).
• Do not operate equipment with current transformer circuits when open.
• Only connect screw terminals with the same number of poles and design!
• Do not exceed the limit values specified in the user manual and on the rating plate;
this must also be observed during testing and commissioning.
• Take note of the safety and warning notices in the documents that belong to the
device!

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Figure 3-1 Specified size and installation
drawing for the Janitza AHF-LCD W 400 V 50
rack module
Post
Housing plate
Drilled hole
Figure 3-2 Specified size and installation
drawing for the Janitza AHF-LCD W 400 V 50
A wall module
Drilled hole
Drilled hole
All dimensions in mm