Bender A-ISOMETER IRDH375 Manuale utente

A-ISOMETER IRDH375

IRDH375B

Insulation monitoring device for

AC IT systems with galvanically

connected rectifiers and converters,

and for IT DC systems

(isolated systems)

Operating manual TGH1352E

A-ISOMETER® IRDH375

INFO TEST RESET MENU

ESC

Isolation Fe ler

R =010K

Edition: January 2002

A-ISOMETER® IRDH375

INFO TEST RESET MENU

ESC

Isolation Fe ler

R =010K

A-ISOMETER® IRDH375

RESET MENU

n Fe ler

R2R1

1 LC display

2 Info key, ESC key

3 TEST key, Scroll key

4 RESET key, Scroll key

5 Menu key, ENTER key

6 Alarm1 LED

7 Alarm2 LED

8 System fault LED

9 transparent cover

(accessories)

10 Current output 0...400 µA

or 0(4)...20 mA

11 external test key

12 external reset key

13 STANDBY input

14 RS485 termination (120 O m)

15 Output contact system fault

16 Output contact Alarm2

17 Output contact Alarm1

18 Terminal cover

19 Supply voltage Us

20 System connection 3AC

21 System connection 3/N/AC

22 System connection AC

23 System connection DC

24 Connection for external

coupling devices

25 Eart connection

OFF

S2 S1

3N AC system

L2L1

3 AC system

L2L1

6 A fuse

A1+ A2-

M+ M-

-1,5

100

200

500

1000

22 24

2345 6 8

AC system

L2L1

L+

L-

DC system

L2L1

12 14

32 34

ear view I DH375

120 W

Commissioning

Putting the IRDH375 A-ISOMETER® into operation

Commissioning

In order to check the proper

connection, it is recommended

to carry out a functional test

by connecting an appropriate

resistance between the system

to be monitored and earth.

Value of the resistance:

50% of the lowest selected

response value Alarm2.

Check the connections with a

voltmeter!

Is system voltage Un applied to the

terminals 1/ 2?

If a coupling device is connected,

is it properly connected?

Check the voltage with a voltmeter!

yes

Remove the resistance!

The IRDH375 is properly

connected and in

service condition!

Do both alarm EDs light?

Did the output relays trip?

yes

Do both alarm EDs light?

Did the output relays trip?

Are the alarm EDs

extinguished?

Did the output relays reset?

Contents

Connection 2

Commissioning 3

Safety information 9

Function

IRDH375, IRDH375B 15

Product description 16

Function 16

Real-time clock 17

Interconnected networks 18

Function input F1/F2 18

ISOnet 19

Self-test 20

Connection

Wiring diagram 22

Network decoupling 23

Connection with coupling devices 24

Operation with coupling device

AGH204S-4 25

Operation and setting

Operating elements and displays 26

Function keys 27

Menu structure 31

Setting of the basic functions

Diagram HISTORY INFO 32

HISTORY INFO 33

ISO SETUP 34

Response values Alarm1 and Alarm2 35

Operating principle of the alarm relays 35

Memory setting 35

Current output 35

Setting of the extended functions

Diagram ISO ADVANCED 36

Setting of the coupling devices 37

Adaptation to the system

leakage capacitance 37

Automatic self-test 37

Real-time clock 38

Date 38

Test 38

Setting COM SETUP 40

ISOnet function 41

Bus address 41

BMS monitor 41

Password setting 42

Setting the national language 43

Interface

Serial interface IRDH375 44

RS485 interface 45

Bender Measuring Interface 47

BMS Slave 48

BMS Master 49

Commissioning BMS network 49

Technical data

Technical data 50

Standards 53

Characteristic curves & status number

Response time 54

Max. AC voltage between

system and PE 55

Current outputs 56

Status number 58

Dimension diagram

Dimension diagram 58

Ordering details

Standard version 60

Accessories 61

Coupling devices 62

Measuring instruments for -4... 62

Label modiﬁed version 63

Dipl.-Ing. W. Bender GmbH & Co.KG

Postfach 1161 • 35301 Grünberg

Londorfer Straße 65 • 35305 Grünberg

Telefon +49 (0) 6401-807-0

Fax +49 (0) 6401) 807 259

Internet: http://www.bender-de.com

E-Mail: [email protected]

Edition: 01.2002

Right to modifications reserved

Safety information

Use for the intended purpose

The A-ISOMETER®is intended exclusively for monitoring the insulation resi-

stance of IT systems. Any other use, or any use which goes beyond the

foregoing, is deemed to be use other than for the intended purpose. The

BENDER Companies shall not be liable for any losses or damage arising

therefrom.

Use for the intended purpose also includes:

• compliance with all information contained in the operating instructions, and

• compliance with the inspection and test intervals and the calibration

intervals.

As a basic principle, our „General Conditions of Sale and Delivery“ shall apply.

At the latest, these shall be available to the operator when the contract is

concluded.

Warranty and liability

Warranty and liability claims in cases of damage to persons and property shall be

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

• use of the A-ISOMETER®other than for the intended purpose

• incorrect assembly or installation, commissioning, operation and

maintenance of the A-ISOMETER®

• failure to comply with the information in the operating instructions

regarding transport, commissioning, operation and maintenance

of the A-ISOMETER®

• unauthorized structural modifications to the A-ISOMETER®

• failure to comply with the technical data

• improperly executed repairs, and the use of spare parts or accessories

which are not recommended by the manufacturer

• cases of disaster and force majeure

• assembly and installation with device combinations not recommended

by the manufacturer

Everyone who works with this A-ISOMETER®must take note of this operating

manual, and in particular of the safety information.

In addition to this, the rules and regulations concerning accident prevention

which are valid for the operating location must be obeyed.

Personnel

Only appropriately qualified staff may work with the A-ISOMETER®.The term

“qualified“ means that such staff are familiar with the assembly, commissioning

and operation of the product and that they have undergone training which is

appropriate to their activities.

The staff must have read and understood the safety chapter and the warnings

in these operating instructions.

About the operating manual

This operating manual has been compiled with the greatest possible care.

Nevertheless, errors and mistakes cannot be entirely ruled out. The BENDER

companies assume no liability whatsoever for any injury to persons or damage

to property which may be sustained as a result of faults or errors in these

operating instructions.

Hazards when handling the A-ISOMETER®IRDH375

The IRDH375 A-ISOMETER®is constructed according to the state-of-the-art and

the recognized safety engineering rules. Nevertheless, when it is being used,

hazards may occur to the life and limb of the user or third parties, or there

may be adverse effects on the A-ISOMETER®or on other valuable property. The

A-ISOMETER®must only be used

• for the purpose for which it is intended

• when it is in perfect technical condition as far as safety is concerned.

Any faults which may impair safety must be eliminated immediately. Impermis-

sible modifications and the use of spare parts and additional devices which are

not sold and recommended by the manufacturer of the devices may cause fires,

electric shocks and injuries.

Unauthorized persons must not have access to or contact with the A-ISOMETER®.

Safety information

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