Bender ISOMETER isoRW425 Manuel utilisateur

Manual

ISOMETER® isoRW425

Insulation monitoring device for unearthed

IT AC-, AC/DC and DC systems

for railway applications up to AC/DC 400 V

Software version: D418 V1.0x

isoRW425_D00052_01_M_XXEN / 03.2014

Bender GmbH & Co. KG

Londorfer Str. 65 • 35305 Grünberg • Germany

P.O. Box 1161 • 35301 Grünberg • Germany

Tel.: +49 6401 807-0

Fax: +49 6401 807-259

E-Mail: [email protected]

Web: http://www.bender.de

©Bender GmbH & Co. KG

Reprinting only with permission

of the publisher.

Subject to change!

Table of Contents

isoRW425_D00052_01_M_XXEN / 03.2014

1. Making effective use of this document ....................................................... 5

1.1 How to use this manual ................................................................................. 5

1.2 Information about factory setting ............................................................. 5

2. Safety instructions ........................................................................................... 7

2.1 General safety instructions ........................................................................... 7

2.2 Work activities on electrical installations ................................................ 7

2.3 Intended use ...................................................................................................... 7

3. Function ............................................................................................................. 9

3.1 Device features ................................................................................................. 9

3.2 Description of function .................................................................................. 9

3.2.1 Undervoltage/overvoltage monitoring ................................................ 11

3.2.2 Connection monitoring .............................................................................. 11

3.2.3 Self test, automatic ....................................................................................... 11

3.2.4 Self test, manual ............................................................................................ 11

3.2.5 Malfunction ..................................................................................................... 12

3.2.6 Assigning alarm categories to alarm relays K1/K2 ............................ 12

3.2.7 Time delays t, ton and toff ....................................................................... 12

3.2.8 Password protection (on, OFF) ................................................................. 13

3.2.9 Automatic adaptation of the pulse duration ...................................... 13

3.2.10 Response time ................................................................................................ 13

3.2.11 Factory setting FAC ...................................................................................... 13

3.2.12 External, combined test resp. reset button T/R .................................. 13

3.2.13 Fault memory ................................................................................................. 13

3.2.14 History memory HiS ...................................................................................... 13

4. Installation, connection and commissioning ........................................... 15

4.1 Installation ....................................................................................................... 15

Table of Contents

4isoRW425_D00052_01_M_XXEN / 03.2014

4.2 Connection ...................................................................................................... 17

4.3 Commissioning .............................................................................................. 20

5. Operation and configuration ...................................................................... 21

5.1 Factory setting ............................................................................................... 21

5.2 Getting to know the user interface ......................................................... 22

5.3 Understand the display elements ........................................................... 23

5.3.1 Querying measured values ........................................................................ 24

5.3.2 Alarm indication when an insulation fault has been detected ..... 26

5.4 Display in menu mode ................................................................................ 27

5.4.1 Querying and setting parameters: Overview ...................................... 27

5.4.2 Navigation within the menu ..................................................................... 28

5.4.3 Selecting menus ............................................................................................ 31

5.4.4 Making settings in the AL menu .............................................................. 33

5.4.5 Making settings in the out menu ............................................................ 35

5.4.6 Making settings in the menu item t ....................................................... 41

5.4.7 Making settings in the SEt menu ............................................................. 43

5.4.8 Querying software number and software version with the INF

menu .................................................................................................................. 47

5.4.9 Querying and clearing the history memory using the HiS menu 47

6. Technical data ................................................................................................ 49

6.1 Tabular presentation .................................................................................... 49

6.2 Standards, approvals and certifications ................................................ 52

6.3 Ordering information ................................................................................... 52

6.4 Error codes ....................................................................................................... 53

INDEX .................................................................................................................... 55

isoRW425_D00052_01_M_XXEN / 03.2014

1. Making effective use of this document

1.1 How to use this manual

This manual is intended for electrically skilled persons working in

electrical engineering and electronics!

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

instructions in the manual, we have used symbols to identify important in-

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

1.2 Information about factory setting

If you want to reset the ISOMETER® to its factory setting in a specific case, refer

to page 45; page 21 provides a summary of all factory settings.

Information calling attention to hazards are marked

with this warning symbol.

Information intended to assist the user to make optimum

use of the product are marked with the Info symbol.

Making effective use of this document

6isoRW425_D00052_01_M_XXEN / 03.2014

isoRW425_D00052_01_M_XXEN / 03.2014

2. Safety instructions

2.1 General safety instructions

In addition to these operating instructions, the "Important safety instructions

for Bender products“, which are also included in the scope of supply, are an in-

tegral part of the device documentation.

2.2 Work activities on electrical installations

 Only skilled persons are permitted to carry out the work necessary to

install, commission and run a device or system.

 Compliance with the applicable regulations governing work on electri-

cal installations and with the regulations derived and associated with

them, is mandatory. EN50110 is of particular importance in this regard.

In particular, only test equipment of overvoltage category III or higher

may be used for fault detection.

 If the device is being used in a location outside the Federal Republic of

Germany, the applicable local standards and regulations must be com-

plied with. European standard EN 50110 can be used as a guide.

2.3 Intended use

The isoRW425 ISOMETER® monitors the insulation resistance of unearthed

AC/C main circuits (IT systems) with mains voltages of AC, AC/DC …V or

DC 0…400 V.

Danger as a result of unprofessional work!

Failure to carry out work on electrical installations prop-

erly and correctly can put life and limb at risk! Therefore,

observe the following safety instructions!

Safety instructions

8isoRW425_D00052_01_M_XXEN / 03.2014

DC components existing in AC/DC systems do not influence the operating

characteristics. A separate supply voltage allows de-energised systems to be

monitored too. The maximum permissible system leakage capacitance is

300µF.

isoRW425_D00052_01_M_XXEN / 03.2014

3. Function

3.1 Device features

 Insulation monitoring for unearthed AC and DC systems with galvani-

cally connected rectifiers or inverters

 Two separately adjustable response ranges of 1…990 k (Alarm 1,

Alarm 2)

 Automatic adaptation to the system leakage capacitance up to 300 F

 Measured value display via multi-functional LCD

 Measurement of the nominal system voltage (RMS) with undervoltage

and overvoltage detection

 Measurement of DC voltages system to earth (L+/PE and L-/PE)

 Alarm signalling via LEDs (AL1, AL2), display and alarm relays (K1, K2)

 N/C operation or N/O operation selectable

 Automatic device self test

 BMS interface (Bender measuring device interface) for data exchange

with other Bender components; RS-485 electrically isolated

 Start-up delay, response delay and delay on release

 Password protection to prevent unauthorised changes being made to

device settings

 Fault memory can be activated

 Connection monitoring

3.2 Description of function

The isoPV425 runs a device test when the supply voltage is connected. and

the start-up delay has elapsed. Then, the insulation resistance of the system is

determined.

When the values are below the set response values Ran1 bzw. Ran2, the re-

sponse delay ton begins. Once the response delay "ton" has elapsed, the alarm

relays "K1/K2" switch and the alarm LEDs "AL1/AL2" light up.

Function

10 isoRW425_D00052_01_M_XXEN / 03.2014

A fault at conductor L+ or L– or a symmetrical insulation fault is shown on the

display. In case of asymmetrical DC faults, a + or a - sign will be displayed in

addition to the value. Pressing the arrow up and down button allows scrolling

up and down in the display via the division of the insulation resistance up to

the percentage value.

The value range to be displayed ranges from -100 % through 0 % to +100 %:

The resistance values can be determined using the following formulas:

This could be an indication of the fault location with regard to conductor L+

or L–, also refer to the display in line 11 of the table on page 25.

It is possible to assign the detected fault resp. the faulty conductor to an alarm

relay via the menu.

If the insulation resistance exceeds the release value (response value plus hys-

teresis) the release delay toff begins. When the release delay has elapsed, the

alarm relays will switch back to their initial state and the alarm LEDs AL1/AL2

will go out. If the fault memory is activated, the alarm relays will not switch

back and the LEDs will not go out until the reset button is pressed or the sup-

ply voltage is interrupted.

The device function can be tested using the test button T. Parameters are as-

signed to the device via the LCD and the control buttons on the front panel;

this function can be password-protected. Parameterisation is also possible via

the BMS bus using the BMS Ethernet gateway, e.g. COM460IP.

Displays Meaning

–100 % one-side fault at conductor L-

0 % symmetrical fault

+100 % one-side fault at conductor L-

Fault at conductor L– RF(–) = (200 % * RF)/(100 % – R %)

Fault at conductor L+ RF(+) = (200 % * RF)/(100 % + R %)

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