Bender ISOMETER isoHV425 User manual

Manual EN

ISOMETER® isoHV425 with

AGH422 coupling device

Insulation monitoring device for unearthed AC, AC/DC and

DC systems (IT systems) up to 3(N)AC, AC 1000 V

Software version: D0453 V1.xx (isoHV425-D4-4)

D0500 V1.xx (isoHV425-D4M-4)

isoHV425_D00082_02_M_XXEN/05.2020

Bender GmbH & Co. KG

Londorfer Str. 65 • 35305 Grünberg • Germany

PO Box1161 • 35301 Grünberg • Germany

Tel.: +49 6401 807-0 • Fax: +49 6401 807-259

E-mail: info@bender.de • www.bender.de

©Bender GmbH & Co. KG

Reprinting only with permission of the publisher.

Subject to change!

Photos: Bender archive.

Table of contents

isoHV425_D00082_03_M_XXEN/05.2020

1. Important information ........................................................................... 6

1.1 How to use this manual ................................................................................... 6

1.2 Technical support: service and support .................................................... 7

1.2.1 First Level Support ............................................................................................ 7

1.2.2 Repair Service ..................................................................................................... 7

1.2.3 Field Service ......................................................................................................... 8

1.3 Training courses ................................................................................................. 8

1.4 Delivery conditions ........................................................................................... 8

1.5 Inspection, transport and storage ............................................................... 8

1.6 Warranty and liability ....................................................................................... 9

1.7 Disposal ................................................................................................................. 9

2. Safety instructions ................................................................................ 10

2.1 General safety instructions .......................................................................... 10

2.2 Work activities on electrical installations ................................................ 10

2.3 Intended use ..................................................................................................... 11

3. Function .................................................................................................. 12

3.1 Device features ................................................................................................. 12

3.2 Functional description .................................................................................. 12

3.2.1 Monitoring of the insulation resistance .................................................. 13

3.2.2 Undervoltage/overvoltage monitoring .................................................. 14

3.2.3 Self test/error codes ....................................................................................... 14

3.2.4 Signalling assignment of the alarm relays K1/K2 ................................ 16

3.2.5 Measuring and response times .................................................................. 17

3.2.6 Password protection (on, OFF) ................................................................... 18

3.2.7 Factory setting FAC ......................................................................................... 18

3.2.8 External, combined test or reset button T/R ......................................... 18

3.2.9 Fault memory .................................................................................................... 18

3.2.10 History memory HiS ........................................................................................ 18

3.2.11 Digital interfaces (isoHV425-D4-4) ........................................................... 19

3.2.12 Analogue interface (isoHV425-D4M-4) .................................................... 19

Table of contents

4isoHV425_D00082_03_M_XXEN/05.2020

4. Mounting, connection and commissioning .....................................20

4.1 Mounting ............................................................................................................ 20

4.2 Wiring diagram ................................................................................................. 22

4.2.1 Connection isoHV425-D4-4 ......................................................................... 22

4.2.2 Connection isoHV425W-D4M-4 with analogue interface: ................ 23

4.3 Commissioning ................................................................................................ 25

5. Operation ................................................................................................26

5.1 Display elements ............................................................................................. 27

5.2 Menu overview ................................................................................................. 28

5.3 "AL" menu – response value setting ........................................................ 29

5.4 "out" menu ......................................................................................................... 29

5.4.1 Configuration of the relay operating mode ........................................... 29

5.4.2 Relay signalling assignment "r1" and "r2" and LED assignment ..... 30

5.4.3 Fault memory configuration ...................................................................... 30

5.4.4 Interface configuration (isoHV425-D4-4) ............................................... 31

5.4.5 Analogue output (isoHV425-D4M-4) ........................................................ 31

5.5 "t" menu – time configuration ................................................................... 32

5.6 "SEt" menu – function configuration ........................................................ 32

5.7 Measured value display and history memory ....................................... 33

6. BMS protocol (isoHV425-D4-4) ...........................................................34

7. Modbus RTU protocol (isoHV425-D4-4) ............................................35

7.1 Reading out the Modbus register from the ISOMETER® .................... 35

7.1.1 The master sends a command to the ISOMETER® ............................... 35

7.1.2 The ISOMETER® answers the master ......................................................... 35

7.2 Writing to Modbus registers (parameter setting) ................................ 35

7.2.1 The master sends a command to the ISOMETER® ............................... 36

7.2.2 The ISOMETER® answers the master ......................................................... 36

7.3 Exception code ................................................................................................. 36

7.4 Modbus register assignment ...................................................................... 37

7.5 Device-specific data types ............................................................................ 40

7.5.1 Device name ...................................................................................................... 40

7.5.2 Measured values .............................................................................................. 40

7.5.3 Alarm assignment of the relays .................................................................. 43

7.5.4 Channel descriptions ..................................................................................... 44

Table of contents

isoHV425_D00082_03_M_XXEN/05.2020

8. IsoData data string (isoHV425-D4-4) ................................................ 45

9. Technical data ....................................................................................... 46

9.1 Tabular presentation ...................................................................................... 46

9.2 Standards .......................................................................................................... 51

9.3 Ordering information ..................................................................................... 51

INDEX ........................................................................................................... 52

6isoHV425_D00082_03_M_XXEN/05.2020

1. Important information

1.1 How to use this manual

Always keep this manual within easy reach for future reference.

To make it easier for you to understand and revisit certain sections of text and

instructions in this manual, we have used symbols to identify important instructions

and information. The meaning of these symbols is explained below:

This manual is intended for qualified personnel working in electrical engi-

neering and electronics!

DANGER

This signal word indicates that there is a high risk of danger that will

result in death or serious injury if not avoided.

WARNING

This signal word indicates a medium risk of danger that can lead to

death or serious injury, if not avoided.

CAUTION

This signal word indicates a low-level risk that can result in minor or

moderate injury or damage to property if not avoided.

This symbol denotes information intended to assist the user in

making optimum use of the product.

Important information

isoHV425_D00082_03_M_XXEN/05.2020

1.2 Technical support: service and support

For commissioning and troubleshooting Bender offers:

1.2.1 First Level Support

Technical support by phone or e-mail for all

Bender products

 Questions about specific customer applications

 Commissioning

 Troubleshooting

Telephone: +49 6401 807-760**

Fax:+49 6401 807-259

In Germany only:0700BenderHelp (telephone and fax)

E-mail: [email protected]

1.2.2 Repair Service

Repair, calibration, update and replacement service for Bender products

 Repair, calibration, testing and analysis

 Hardware and software update

 Delivery of replacement devices for faulty or incorrectly delivered Bender devices

 Extended warranty for Bender devices with in-house repair service or replace-

ment devices at no extra cost

Telephone: +49 6401 807-780** (technical issues)/

+49 6401 807-784**, -785** (commercial issues)

Fax: +49 6401 807-789

E-mail: [email protected]

Please send the devices for repair to the following address:

Bender GmbH, Repair-Service,

Londorfer Str. 65,

35305 Grünberg

Important information

8isoHV425_D00082_03_M_XXEN/05.2020

1.2.3 Field Service

On-site service for all Bender products

 Commissioning, parameter setting, maintenance, troubleshooting

 Analysis of the electrical installation in the building (power quality, EMC, ther-

mography)

 Practical training courses for customers

Telephone: +49 6401 807-752**, -762 ** (technical issues)/

+49 6401 807-753** (commercial issues)

Fax: +49 6401 807-759

E-mail: fieldservice@bender-service.com

Internet: www.bender.de

*365 days 7.00 a.m. – 8.00 p.m. (CET/UTC +1)

**Mo-Thu 7.00 a.m. – 4.00 p.m., Fr 7.00 a.m. – 1.00 p.m

1.3 Training courses

Bender is happy to provide training regarding the use of test equipment. Current dates

of training courses and workshops can be found on the Internet at: www.bender.de/en

–> Know-how –> Seminars

1.4 Delivery conditions

The conditions of sale and delivery set out by Bender apply.

For software products, the "Softwareklausel zur Überlassung von Standard- Software

als Teil von Lieferungen, Ergänzung und Änderung der Allgemeinen Lieferbedingun-

gen für Erzeugnisse und Leistungen der Elektroindustrie" (software clause in respect of

the licensing of standard software as part of deliveries, modifications and changes to

general delivery conditions for products and services in the electrical industry) set out

by the ZVEI (Zentralverband Elektrotechnik- und Elektronikindustrie e.V., (German Elec-

trical and Electronic Manufacturers' Association) also applies.

Conditions of sale and delivery can be obtained from Bender in printed or electronic for-

mat.

1.5 Inspection, transport and storage

Check the shipping and device packaging for damage and compare the package con-

tents with the shipping documents. In case of transport damage, please notify Bender

immediately.

The devices must only be stored in areas where they are protected from dust,

humidity and spray or dripping water, and in which the specified storage temperatures

can be assured.

Important information

isoHV425_D00082_03_M_XXEN/05.2020

1.6 Warranty and liability

Warranty and liability claims for personal injury and property damage are excluded if

they are attributable to one or more of the following causes:

 Improper use of the device.

 Incorrect mounting, commissioning, operation and maintenance of the device.

 Failure to observe the instructions in this operating manual regarding transport,

commissioning, operation and maintenance of the device.

 Unauthorised changes to the device made by parties other than the manufac-

turer.

 Non-observance of technical data.

 Repairs carried out incorrectly and the use of spare parts or accessories not rec-

ommended by the manufacturer.

 Catastrophes caused by external influences and force majeure.

 Mounting and installation with device combinations not recommended by the

manufacturer.

This operating manual, especially the safety instructions, must be observed by all per-

sons working with the device. Furthermore, the rules and regulations that apply for ac-

cident prevention at the place of use must be observed.

1.7 Disposal

Abide by the national regulations and laws governing the disposal of this device. Ask

your supplier if you are not sure how to dispose of the old equipment.

The directive on waste electrical and electronic equipment (WEEE directive) and the di-

rective on the restriction of certain hazardous substances in electrical and electronic

equipment (RoHS directive) apply in the European Community. In Germany, these pol-

icies are implemented through the "Electrical and Electronic Equipment Act" (ElektroG).

According to this, the following applies:

 Electric and electronic equipment are not to be included in household waste.

 Batteries and accumulators are not to be included in household waste but must

be disposed of in accordance with the regulations.

 Old electrical and electronic equipment from users other than private households

which was introduced to the market after 13 August 2005 will be taken back by

the manufacturer and disposed of properly.

For more information on the disposal of Bender devices, refer to our

homepage at www.bender.de/en –> Service & support.

10 isoHV425_D00082_03_M_XXEN/05.2020

2. Safety instructions

2.1 General safety instructions

In addition to these operating manual, the "Safety instructions for Bender products",

which are also included in the scope of supply, are an integral part of the device docu-

mentation.

2.2 Work activities on electrical installations

If the device is being used in a location outside the Federal Republic of Germany, the

applicable local standards and regulations must be complied with. European standard

EN 50110 can be used as a guide.

DANGER

Risk of electrocution due to electric shock!

Touching live parts of the system carries the risk of:

 An electric shock

 Damage to the electrical installation

 Destruction of the device

Before installing and connecting the device, make sure that the

installation has been de-energised. Observe the rules for working on

electrical installations.

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