Bender ISOMETER iso685-D-P, ISOMETER iso685W-D-P, ISOMETER iso685-S-P, ISOMETER iso685W-S-P User Manual

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Manual

ISOMETER® iso685-D-P

iso685W-D-P iso685-S-P iso685W-S-P

Insulation Monitoring Device with integrated locating current injector for IT AC systems with galvanically connected rectifiers and inverters and for IT DC systems

iso685-D-P_D00170_00_M_XXEN/06.2016

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PLEASE READ THIS MANUAL AND ANY ACCOMPANYING DOCUMENTS CAREFULLY AND KEEP THEM IN A SECURE PLACE FOR FUTURE REFERENCE.

Bender GmbH & Co. KG

Postfach 1161 • 35301 Gruenberg • Germany Londorfer Straße 65 • 35305 Gruenberg • Germany

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

E-Mail: [email protected] Web: www.bender.de

Customer service Service-Hotline: 0700-BenderHelp (Telephone and Fax) Carl-Benz-Straße 8 • 35305 Gruenberg • Germany

Tel.:+49 6401 807-760 Fax:+49 6401 807-629

E-Mail:[email protected]

Reproduction only with permission

of the publisher.

Subject to change.

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Table of contents

1. Important information .................................................................... 8

1.1 How to use this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.2 Technical support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.2.1 First level support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.2.2 Repair service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.2.3 Field service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.3 Training courses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.4 Delivery conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.5 Inspection, transport and storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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 Device-specific safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.4 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3. Function ........................................................................................... 11

3.1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1.1 Features ISOMETER® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1.2 Features EDS44… . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2.1 General product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2.2 Special characteristics of ISOMETER® iso685-S-P with front panel 12

3.3 Function description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.4 Insulation fault location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.5 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.6 Self test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.7 Compatibility with EDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4. Device overview ..............................................................................15

4.1 Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.2 Device variants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

4.3 Connections and panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

4.4 Display elements and device buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

5. Mounting .......................................................................................... 19

5.1 General instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

5.2 Screw mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.3 DIN rail mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6. Connection ....................................................................................... 20

6.1 Connection requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

6.2 Connection to a 3(N)AC system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

6.3 Connection to an AC system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

6.4 Connection to a DC system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

6.5 Connection to the X1 interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

6.6 Connection to the supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

6.7 Connection to the Ethernet interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

6.8 Connection to the relay 1 interface (11 12 14) . . . . . . . . . . . . . . . . . . . . . . 25

6.9 Connection to the relay 2 interface (21 22 24) . . . . . . . . . . . . . . . . . . . . . . 25

6.10 Connection to the BB bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

6.11 Connecting the EDS to the ISOMETER® . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

6.11.1 Connection example ISOMETER® to EDS . . . . . . . . . . . . . . . . . . . . . . .27

6.11.2 Connection to a 3(N)AC system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

6.11.3 Connection to an AC system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

6.11.4 Connection to a DC system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

6.11.5 System structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

iso685-D-P_D00170_00_M_XXDE/04.2016

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Table of contents

7. Commissioning ............................................................................... 32

7.1 General initial commissioning process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.2 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.2.1 Set language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.2.2 Set time and date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.2.3 Setting system type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.2.4 Set profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.2.5 Setting EDS mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.2.6 Setting EDS current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.2.7 Set response value Ran1 for alarm 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.2.8 Set response value Ran2 for alarm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.3 Recommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

7.4 Commissioning EDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

8. Display .............................................................................................. 36

8.1 Standard display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

8.2 Fault display (active) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

8.3 Fault display (inactive) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

8.4 Acknowledging a fault message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8.5 Data - isoGraph. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8.6 History memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

8.7 Insulation fault location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

8.8 Initial measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

9. Menu ................................................................................................. 41

9.1 Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

9.2 Operating and navigating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

9.2.1 Easy operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

9.2.2 Multiple selection in the device menu . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10. Settings........................................................................................... 44

10.1 Settings in the device menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

10.1 1. Alarm settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

10.1 1.1 Insulation alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

10.1 1.1.1 Alarm 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

10.1 1.1.2 Alarm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

10.1 1.1.3 Fault memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

10.1 1.2 DC alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

10.1 1.2.1 Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

10.1 1.2.2 U(DC-E). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

10.1 1.3 Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10.1 1.4 System type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10.1 1.5 ISOnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10.1 1.5.1 ISOnet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10.1 1.5.2 Number of devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10.1 1.6 Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10.1 1.7 T(Start) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10.1 1.8 Coupling monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10.1 1.9 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

10.1 1.9.1 Digital 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

10.1 1.9.1.1 Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

10.1 1.9.1.2 t(on). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

10.1 1.9.1.3 t(off) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

10.1 1.9.1.4 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

10.1 1.9.2 Digital 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

10.1 1.9.3 Digital 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

10.1 1.10 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

10.1 1.10.1 Relay 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

10.1 1.10.1.1 TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

10.1 1.10.1.2 Relay operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . 47

10.1 1.10.1.3 Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

10.1 1.10.1.4 Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

10.1 1.10.1.5 Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

10.1 1.10.2 Relay 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

10.1 1.10.3 Digital 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

10.1 1.10.3.1 TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

10.1 1.10.3.2 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

10.1 1.10.3.3 Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

10.1 1.10.3.4 Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

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Table of contents

10.1 1.10.3.5 Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

10.1 1.10.4 Digital 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

10.1 1.10.5 Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

10.1 1.10.5.1 TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

10.1 1.10.5.2 Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

10.1 1.10.5.3 Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

10.1 1.10.5.4 Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

10.1 1.10.6 Analogue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

10.1 1.10.6.1 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

10.1 1.10.6.2 Midscale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

10.1 1.10.6.3 TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

10.1 1.10.6.4 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

10.1 2. EDS (insulation fault location) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

10.1 2.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

10.1 2.1.1 Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

10.1 2.1.2 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

10.1 2.1.3 Using a portable EDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

10.1 2.2 Scanning channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

10.1 2.3 Activating channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

10.1 2.4 Group settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

10.1 2.4.1 Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

10.1 2.4.1.1 Current transformer (CT) . . . . . . . . . . . . . . . . . . . . . . . . . 53

10.1 2.4.1.2 CT monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

10.1 2.4.1.3 I∆L Response value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

10.1 2.4.1.4 I∆n Response value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

10.1 2.4.2 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

10.1 2.4.2.1 Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

10.1 2.4.2.2 Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

10.1 2.4.2.3 Digital output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

10.1 2.4.2.4 Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

10.1 2.4.2.5 Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

10.1 2.4.2.6 Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

10.1 2.4.3 Dig. input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

10.1 2.4.3.1 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

10.1 2.4.3.2 t(on) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

10.1 2.4.3.3 t(off) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

10.1 2.4.3.4 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

10.1 2.4.4 Device settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

10.1 2.4.4.1 System type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

10.1 2.4.4.2 Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

10.1 2.4.4.3 Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

10.1 2.4.4.4 Fault memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

10.1 2.5 Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

10.1 2.5.1 Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

10.1 2.5.2 Current transformer monitoring . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.5.3 Response value I∆L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.5.4 Response value I∆n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.1 Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.1.1 TEST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.1.2 Operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.1.3 Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.1.4 Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.1.5 Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.2 Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.2.1 TEST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.2.2 Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.2.3 Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.2.4 Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.3 Digital output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.3.1 TEST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.3.2 Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.3.3 Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.6.3.4 Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.7 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.7.1 Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.7.2 t(on). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.7.3 t(off). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.7.4 Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

10.1 2.8 Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

10.1 2.8.1 Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

10.1 2.8.2 Fault memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

10.1 2.9 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

10.1 3. Data measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

10.1 4. Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

10.1 5. History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

10.1 6. Device settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

10.1 6.1 Language. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

10.1 6.2 Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

10.1 6.2.1 Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

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10.1 6.2.2 Format (time). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

10.1 6.2.3 Summer time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

10.1 6.2.4 Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

10.1 6.2.5 Format (date). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

10.1 6.2.6 NTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

10.1 6.2.7 NTP server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

10.1 6.2.8 UTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

10.1 6.3 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

10.1 6.3.1 Write access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.2 Ethernet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.2.1 DHCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.2.2 IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.2.3 SN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.2.4 Std. GW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.2.5 DNS server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.2.6 Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.3 BCOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.3.1 System name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.3.2 Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.3.3 Device address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.3.4 Timeout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.3.5 TTL for subscription . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.4 Modbus TCP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

10.1 6.3.4.1 Port 502. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

10.1 6.3.5 BS bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

10.1 6.3.5.1 Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

10.1 6.4 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

10.1 6.4.1 Brightness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

10.1 6.5 Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

10.1 6.5.1 Password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

10.1 6.5.2 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

10.1 6.6 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

10.1 6.7 Data backup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

10.1 6.8 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

10.1 7. Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

10.2 Factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

11. Device communication ................................................................64

11.1 Ethernet interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

11.2 BCOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

11.3 Modbus TCP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

11.4 Web server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

11.5 BS bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

12. Insulation fault location ..............................................................69

12.1 General description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

12.2 Required settings for insulation fault location . . . . . . . . . . . . . . . . . . . . . 69

12.3 Indication on the display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

12.4 Starting and stopping the insulation fault location. . . . . . . . . . . . . . . . .69

13. Special functions for coupled IT systems .................................70

13.1 Particularities when monitoring coupled IT systems . . . . . . . . . . . . . . . 70

13.2 System isolation via digital input with two coupled systems . . . . . . .70

13.3 System isolation via ISOnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

14. Device profiles ............................................................................... 73

15. Diagrams ........................................................................................ 74

15.1 Response time profile power circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

15.2 Response time profile control circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

15.3 Response time profile generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

15.4 Response time profile high capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . .75

15.5 Response time profile inverter > 10 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

15.6 Response time profile inverter < 10 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

15.7 Relative uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

16. Alarm messages ............................................................................78

16.1 Alarm messages of the ISOMETER® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

16.2 Alarm messages of the EDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

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Table of contents

17. Technical data ............................................................................... 81

17.1 Tabular data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

17.2 Option W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

17.3 Standards and certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

17.4 Ordering details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

18. Glossary .......................................................................................... 86

Index ....................................................................................................... 87

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1. Important information

DANGER

WARNING

CAUTION

Important information

1.1 How to use this manual

This manual is intended for qualified personnel working in electrical engineering and electronics!

Always keep this manual within easy reach for future reference.

To make it easier for you to understand and revisit certain sections in this manual, we have used symbols to identify important instructions and information. The meaning of these symbols is explained below:

This signal word indicates that there is a high risk of danger that will result in electrocution or serious injury if not avoided.

This signal word indicates a medium risk of danger that can lead to death or serious injury if not avoided.

1.2 Technical support

For commissioning and troubleshooting Bender offers you:

1.2.1 First level support

Technical support by phone or e-mail for all Bender products

• Questions concerning specific customer applications

• Commissioning

• Troubleshooting

Telephone: +49 6401 807-760* Fax: +49 6401 807-259

In Germany only: 0700BenderHelp (Tel. and Fax) E-mail: [email protected]

1.2.2 Repair service

Repair, calibration, update and replacement service for Bender products

• Repairing, calibrating, testing and analysing Bender products

• Hardware and software update for Bender devices

• Delivery of replacement devices in the event of faulty or incorrectly delivered Bender devices

• Extended guarantee for Bender devices, which includes an in-house repair service or replacement devices at no extra cost

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.

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

+49 6401 807-784**, -785** (sales)

Fax: +49 6401 807-789 E-mail: [email protected]

Please send the devices for repair to the following address:

Bender GmbH, Repair-Service, Londorfer Strasse 65, 35305 Grünberg

iso685-D-P_D00170_00_M_XXDE/06.2016

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Important informationImportant information

1.2.3 Field service

On-site service for all Bender products

• Commissioning, parameter setting, maintenance, troubleshooting for Bender products

• Analysis of the electrical installation in the building (power quality test, EMC test, thermography)

• Training courses for customers

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

+49 6401 807-753** (sales)

Fax: +49 6401 807-759 E-mail: [email protected] Internet: www.bender-de.com

*Available from 7.00 a.m. to 8.00 p.m. 365 days a year (CET/UTC+1) **Mo-Thu 7.00 a.m. - 8.00 p.m., Fr 7.00 a.m. - 13.00 p.m.

1.3 Training courses

Bender is happy to provide training regarding the use of test equipment. The dates of training courses and workshops can be found on the Internet at www.bender-de.com -> Know-how -> Seminars.

1.4 Delivery conditions

Bender sale and delivery conditions apply. For software products the "Softwareklausel zur Überlassung von Standard-Software als Teil von Lieferungen, Ergänzung und Änderung der Allgemeinen Lieferbedingungen 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 Electrical and Electronic Manufacturer's Association) also applies. Sale and delivery conditions can be obtained from Bender in printed or electronic format.

1.5 Inspection, transport and storage

Inspect the dispatch and equipment packaging for damage, and compare the contents of the package with the delivery documents. In the event of damage in transit, please contact Bender immediately. The devices must only be stored in areas where they are protected from dust, damp, and spray and dripping water, and in which the specified storage temperatures can be ensured.

1.6 Warranty and liability

Warranty and liability claims in the event of injury to persons or damage to property are excluded if they can be attributed 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 manufacturer.

• Non-observance of technical data.

• Repairs carried out incorrectly and the use of replacement parts or accessories not approved 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 personnel working on the device. Furthermore, the rules and regulations that apply for accident 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 directive on the restriction of certain hazardous substances in electrical and electronic equipment (RoHS directive) apply in the European Community. In Germany, these policies are implemented through the "Electrical and Electronic Equipment Act" (ElektroG). According to this, the following applies:

• Electrical and electronic equipment are not part of household waste.

• Batteries and accumulators are not part of household waste and 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 must 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.com -> Service & support.

iso685-D-P_D00170_00_M_XXDE/06.2016

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2. Safety instructions

DANGER

WARNING

CAUTION

Safety instructions

2.1 General safety instructions

Part of the device documentation in addition to this manual is the enclosed "Safety instructions for Bender products".

2.2 Work activities on electrical installations.

Only qualified personnel are permitted to carry out the work necessary to install, commission and run a device or system.

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 elec-

trical installations.

If the device is used outside the Federal Republic of Germany, the applicable local standards and regulations must be complied with. The European standard EN 50110 can be used as a guide.

2.3 Device-specific safety information

Make sure that the basic settings meet the requirements of the IT system. Children and unauthorised persons must not have access to or contact with the ISOMETER®.

Make sure that the operating voltage is correct!

Prior to insulation and voltage tests, the ISOMETER® must be disconnected from the IT system for the duration of the test. In order to check the correct connection of the device, a functional test has to be carried out before starting the system.

In the event of an alarm message of the ISOMETER®, the insulation fault should be eliminated as quickly as possible.

If the ISOMETER® is installed inside a control cabinet, the insulation fault message must be audible and/or visible to attract attention.

When using ISOMETER®s in IT systems, make sure that only one active ISOMETER® is connected in each interconnected system. If IT systems are interconnected via coupling switches, make sure that ISOMETER®s not currently used are disconnected from the IT system and deactivated. IT systems coupled via diodes or capacitances may also influence the insulation monitoring process so that a central control of the different ISOMETER®s is required.

The ISOMETER®s are built in accordance with state-of-the-art technology and accepted recognised safety regulations. However, the use of such devices may introduce risks to the life and limb of the user or third parties and/or result in damage to the ISOMETER® or other property.

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Function

3. Function

Only use the ISOMETER®:

• As intended

• In perfect working order Immediately rectify any faults that may endanger safety. Do not make any unauthorised

changes and only purchase spare parts and optional accessories recommended by the manufacturer of the devices. Failure to observe this requirement can result in fire, electric shock and injury. Unauthorised persons must not have access to or contact with the ISOMETER®. Reference signs must always be clearly legible. Replace damaged or illegible signs immediately.

2.4 Intended use

The ISOMETER® monitors the insulation resistance of unearthed AC/DC main circuits (IT systems) with mains voltages of AC 0…690 V or DC 0…1000 V. 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 0…1000 µF, depending on the profile. In combination with an insulation fault locator (EDS), the ISOMETER® can be used for insulation fault location. By means of measuring current transformers, the EDS detects the locating current pulses generated by the ISOMETER® in unearthed DC, AC and threephase power supplies (IT systems) and evaluates them.

Intended use also implies:

• The observation of all information in the operating manual

• Compliance with test intervals

In order to meet the requirements of applicable standards, customised parameter settings must be made on the equipment in order to adapt it to local equipment and operating conditions. Please heed the limits of the area of application indicated in the technical specifications.

Any other use than that described in this manual is regarded as improper.

3.1 Features

3.1.1 Features ISOMETER®

• ISOMETER® for IT AC systems with galvanically connected rectifiers or inverters and for IT DC systems (IT = unearthed systems)

• Automatic adaptation to the existing system leakage capacitance

• Combination of and other profile-specific measurement methods

• Two separately adjustable response value ranges of 1 kΩ…10 MΩ for alarm 1 and alarm 2

• High-resolution graphic LC display for excellent readability and recording of the device status

• Connection monitoring (monitoring of the measuring lines)

• Automatic device self test

• Graphical representation of the insulation resistance over time (isoGraph)

• History memory with real-time clock (buffer for three days) for storing 1023 alarm messages with date and time

• Current or voltage output 0(4)…20 mA, 0…400 µA, 0…10 V, 2…10 V (galvanically separated), which is analogous to the measured insulation value of the system

• Freely programmable digital inputs and outputs

• Remote setting of certain parameters via the Internet (Option; COMTRAXX® gateway)

• Worldwide remote diagnosis via the Internet (made available by Bender Service only)

• RS-485/BS (Bender sensor bus) for communication with other Bender devices

• ISOnet: Internal separation of the ISOMETER® from the IT system to be monitored (e.g. if several IT systems are interconnected)

• BCOM, Modbus TCP and web server

• Locating current injection for selective insulation fault location

• Indication of the insulation faults selectively located by the EDS system

• Parameter setting of EDS systems

• Customer-specific texts for each measuring channel

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FunctionFunction

3.1.2 Features EDS44…

• Insulation fault location in AC, 3AC and DC IT systems (AC 24…690 V,

• Up to 12 measuring current transformers of the W…, WR…, WS… measuring current transformer series can be connected

• Response sensitivity insulation fault location: EDS440 2…10 mA EDS441 0.2…1 mA

• Response sensitivity residual current measurement: EDS440 100 mA…10 A EDS441 100 mA…1 A

• Communication of the components via BS bus (RS-485) or BB bus

DC 24…500 V

)

3.2 Product description

3.2.1 General product description

The ISOMETER® is an insulation monitoring device for IT systems in accordance with IEC 61557-8 and IEC 61557-9. It is universally applicable in AC, 3(N)AC, AC/DC and DC systems. AC systems may include extensive DC-supplied loads (such as rectifiers, inverters, variable-speed drives).

3.2.2 Special characteristics of ISOMETER® iso685-S-P with front panel

The ISOMETER® iso685-D-P and iso685W-D-P are devices of the iso685 device family with integrated display. This manual applies in full to these ISOMETER®s. The ISOMETER® iso685-S-P and iso685W-S-P are sensor variants of the iso685 device family without display. The only difference between these variants and the ISOMETER®s iso685-D-P and iso685W-D-P is that they do not feature a display. The ISOMETER®s iso685-S-P and iso685W-S-P must be used in combination with a front panel because the devices are operated via the front panel. The operation of the front panel is equal to the operation of the ISOMETER®s with integrated display, which is described in this manual.

Hereafter, the ISOMETER®s with integrated display are described. This description is similar to the combination of ISOMETER® sensor variants and the front panel FP200. The devices to which this manual applies will be referred to as ISOMETER®s hereafter.

3.3 Function description

The insulation monitoring device continuously monitors the entire insulation resistance of an IT system during operation and triggers an alarm when the value falls below a preset response value. To obtain a measurement, the device has to be connected between the IT system (unearthed system) and the protective earth conductor (PE). A measuring current in the µA range is superimposed onto the system which is recorded and evaluated by a microcontrolled measuring circuit. The measuring time depends on the selected measurement profiles, the system leakage capacitance, the insulation resistance and possible system-related disturbances.

The response values and other parameters are set using a commissioning wizard or via different setup menus using the device buttons and a high-resolution graphic LC display. The selected settings are stored in a permanent fail-safe memory. Different languages can be selected for the setup menus and the messages indicated on the display. The device utilises a clock for storing fault messages and events in a history memory with time and date stamp. The settings can be protected against unauthorised modifications by a password. To ensure proper functioning of the connection monitoring, the system type 3AC, AC or DC must be set and the appropriate terminals L1/+, L2, L3/- must be connected.

Only the sensor variant (ISOMETER® iso685-S-P or iso685W-S-P) can be connected to the front panel. Connection to the display variant (ISOMETER® iso685-D-P or iso685W-D-P) is not possible.

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FunctionFunction

CAUTION

The ISOMETER® is able to measure the insulation resistance reliably and precisely in all common IT systems (unearthed systems). Due to various applications, system types, operating conditions, application of variable-speed drives, high system leakage capacitances etc., the measurement technique must be able to meet varying requirements in order to ensure an optimised response time and an optimised relative uncertainty. Different measurement profiles which can be selected from a setup menu allow optimum adaptation of the measurement technique to the specific application. If the preset response value falls below the value of alarm 1 and/or alarm 2, the associated alarm relays switch, the LEDs ALARM 1 or ALARM 2 light and the measured value is shown on the LC display (in case of insulation faults in DC systems, a trend graph for the faulty conductor L+/L- is displayed). If the fault memory is activated, the fault message will be stored. Pressing the RESET button resets the insulation fault message, provided that the insulation resistance is at least 25 % above the preset response value. As additional Information, the quality of the measuring signal and the time required to update the measured value are shown on the display. A poor signal quality (1-2 bars) may be an indication that the wrong measurement profile has been selected. The ISOMETER® has an internal system isolating switch, which makes it possible to operate several ISOMETER®s in coupled IT systems. For this purpose, the ISOMETER®s are connected via an Ethernet bus. The integrated ISOnet function ensures that only one ISOMETER® is actively measuring at a time, while the other devices are completely isolated from the system and waiting in standby mode for measuring permission.

3.4 Insulation fault location

An additional function of the ISOMETER® in combination with the EDS is the selective insulation fault location. Therefore, the ISOMETER® generates a periodic locating current after the values has fallen below the set response value R system conductors are alternately connected to earth via a defined resistance. The resulting locating current depends on the size of the existing insulation fault and the system voltage. It is limited by the ISOMETER® depending on the settings. The insulation fault is selectively located by means of the EDS and the measuring current transformer connected to it. The locating current flows from the locating current injector via the live lines to the insulation fault position taking the shortest way. From there, it flows through the insulation fault and the conductor PE back to the ISOMETER®. This locating current pulse is detected by the measuring current transformer on the insulation fault path and signalled by the connected EDS. For the duration of the insulation fault location, the function of the insulation monitoring device is deactivated. If during the insulation fault location the locating current falls below the value measurable by the EDS, the insulation fault location is ended by the ISOMETER®.

Risk of malfunctions due to excessive locating current on sensitive system parts!

The locating current flowing between the IT system and earth can cause controller faults in sensitive parts of the system, such as the PLC or relay. Ensure that the level of the locating current is compatible with the system to be monitored.

(LED ALARM 2). Thereby, the

an2

3.5 Interfaces

• Communication protocol Modbus TCP

• BCOM for Bender device communication via Ethernet

• BS bus for communication of Bender devices (RS-485)

• BB bus for communication of Bender devices (Bender-internal device bus)

• Integrated web server for reading out measured values and for parameter setting

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FunctionFunction

√

3.6 Self test

After switching on the supply voltage, the ISOMETER automatically and continuously checks all internal measuring functions, the components of the process control such as the data and parameter memory, as well as the connections to the IT system and earth. Additionally, all EDS devices connected to the ISOMETER® are tested.

The self test can also be activated manually by means of the test button to check the functions of the relays (depending on the configuration) or it can be selected via the "Control" menu (refer to page 59).

The progress of the manual self test is shown on the LC display by a bar graph. Depending on the conditions in the IT system being monitored, the self test is completed after 15…20 seconds. The device then returns to the standard mode (measurement mode) and the actual measured value will be displayed after the measuring time has expired. The display shows the message

Initial measurement

ured (refer to “Initial measurement” on page 40).

If a fault is detected during the self test, the respective LEDs of the device light (refer to

“Alarm messages” on page 78). In addition, the respective message will be indicated on

the display and a previously programmed output will provide the respective signal.

TEST

√ Messtechnik

Ankopplung Anschluss Erde Ausgänge

33 %

until the first valid value is meas-

3.7 Compatibility with EDS

Device Notes

iso685-x-P

EDS440-L

EDS440-S

EDS441-L

EDS441-S

EDS441-LAB

EDS460/490L

EDS460/490D

EDS461/491L

EDS461/491D

EDS150

EDS151

–

EDS440-L EDS440W-L

EDS440-S EDS440W-S

EDS441-L EDS441W-L

EDS441-S EDS441W-S

EDS441-LAB EDS441W-LAB

Not recommended for new systems

EDS150 B9108 0103

EDS151 B9108 0101

B91080202 B91080202W

B91080201 B91080201W

B91080205 B91080205W

B91080204 B91080204W

B91080207 B91080207W

The test has been run and the result was positive.

The test has been run and the result was negative.

The test is not available and is not carried out (e.g. due to specific device settings).

The test is running.

EDS195P X EDS195P B91082040

Legend:

X = can be combined

I = can be combined + communication via BS bus

O = can be combined + communication via BB bus

– = limited compatibility + communication via BS bus

No indication of messages on the ISOMETER®. Parameter setting via the ISOMETER® not possible. Local fault indication on EDS only.

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4. Device overview

4.1 Dimensions

108 mm

110 mm

mm 39

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Device overview

ISOMETER® iso685(W)-D-P

ISOMETER® iso685(W)-S-P connected to front panel FP200 via an RJ45 cable

4.2 Device variants

iso685-D-P:

iso685-S-P:

Option "W":

The device variant ISOMETER® iso685-D-P features a high-resolution graphic LC display and operating controls for direct operation of the device functions. It cannot be combined with an FP200.

The device variant ISOMETER® iso685-S-P features neither a display nor operating controls. It can only be used in combination with the FP200 and it is operated via this front panel.

The ISOMETER®s with and without integrated display are available with option "W" for extreme climatic and mechanical conditions (ISOMETER® iso685W-D-P and iso685W-S-P).

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Device overview

A1/+, A2/- Connection to the power supply voltage U

L1/+ Connector for the IT system to be monitored L2 Connector for the IT system to be monitored L3/- Connector for the IT system to be monitored KE, E Connection to PE

To p

PGH ON

RESET

DATA

LEDs: PGH ON, SERVICE, ALARM 1, ALARM 2

MENU ESC

TEST

INFO OK

EDS

iso685-D-P

PGH ON

X3 Optional expansion module for Bender devices (e. g. BB-Bus) X4 REMOTE interface to connect to the FP200

iso685-S-P

Back

Front

ETH

X1 Multifunctional I/O interface (refer to page 23) ETH Ethernet interface R Switchable terminating resistor for termination

of the RS-485 interface 11 12 14 Connector for alarm relay 1 21 22 24 Connector for alarm relay 2

Bottom

4.3 Connections and panel

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Device overviewDevice overview

PGH ON

4.4 Display elements and device buttons

Display elements

The LED "ON" lights when the device is turned on.

1ON

3PGH ON

SERVICE

ALARM 1

ALARM 2

The LED "ON" flashes during ISOnet operation if the device is active in the ISOnet interconnection.

The device display shows information regarding the device and the measurements. Other information is available in the chapter “Display” from page 36.

The LED "PGH ON" flashes the locating current for the insulation fault location is generated.

The LED "SERVICE" lights when there is either a device fault or a connection fault, or when the device is in maintenance mode.

The LED "ALARM 1" lights when the insulation resistance of the IT system falls below the set response value R

The LED "ALARM 2" lights when the insulation resistance of the IT system falls below the set response value R

during insulation fault location

an1

an2

Device buttons

You can adjust the device settings in the respective menu using the menu buttons. Depending on the menu entry, one of the options displayed below is assigned to the buttons.

MENU Opens the device menu.

ESC

EDS

TEST

RESET

Info

. It indicates that

DATA

Cancels the current process or navigates one step back in the device menu.

Manually starts the insulation fault location, which runs continuously. Stops the insulation fault location immediately when it is pressed again.

Navigates up in a list or increases a value.

Starts the device self test.

Navigates forwards (e.g. to the next setting step) or selects a parameter.

Resets alarms.

Navigates backwards (e.g. to the previous setting step) or selects a parameter.

Shows information.

Confirms an action or a selection.

Indicates data and values.

Navigates down in a list or reduces a value.

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5. Mounting

DANGER

72 mm

108 mm

54 mm

100 mm

107,3 mm

Mounting

5.1 General instructions

Only qualified personnel are permitted to carry out the work necessary to install, commission and run a device or system.

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 elec-

trical installations.

5.2 Screw mounting

19. Fix the three mounting clips delivered with the device (two of them packed separately) manually or using a tool, as illustrated below.

20. Drill the mounting holes for the M4 thread according to the dimensioned drilling template.

21. Fix the ISOMETER® using three M4 screws.

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Connection

DANGER

WARNING

6. Connection

5.3 DIN rail mounting

1. Fix the three mounting clips delivered with the device (two of them packed separately) manually or using a tool, as illustrated below.

2. Snap the ISOMETER® securely onto the DIN rail.

6.1 Connection requirements

Consider the minimum distance to adjacent devices: lateral 0 mm, top 20 mm, bottom 20 mm.

Only qualified personnel are permitted to carry out the work necessary to install, commission and run a device or system.

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 elec-

trical installations.

Risk of electric shock!

Nominal voltages up to 1000 V may be present on the terminals L1/+ to L3/- which can be lethal. Make sure the terminal covers are properly mounted and clicked in before putting the device into operation.

Risk of electric shock!

High voltage is applied at the terminals, which in case of direct contact can be life-threatening. If the terminals L1/+, L2, L3/- of the device are connected to a live IT system, the terminals E and KE must not be disconnected from the protective conductor (PE).

Warning of insulation monitoring devices that do not work correctly!

Connect the terminals KE and E individually to the protective earth conductor PE.

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ConnectionConnection

CAUTION

Provide line protection!

According to DIN VDE 0100-430, a line protection shall be provided for the supply voltage.

Risk of injury from sharp-edged terminals!

Risk of lacerations. Touch the enclosure and the terminals with due care.

Ensure disconnection from the IT system!

When insulation or voltage tests are to be carried out, the device must be isolated from the system for the test period. Otherwise the device may be damaged.

Risk of property damage due to unprofessional installation!

If more than one insulation monitoring device is connected to a conductively connected system, the system can be damaged. If several devices are connected, the device does not function and does not signal insulation faults. Make sure that only one insulation monitoring device is connected in each conductively connected system. The ISOMETER® is suited for use in coupled systems. For the required parameter setting, refer to “Special functions for coupled IT systems” from

page 70.

Prevent measurement errors!

When an AC system being monitored contains galvanically coupled DC circuits, take into consideration that: an insulation fault can only be detected correctly when the rectifier valves carry a minimum current of >10 mA.

For UL applications:

Use 60/70 °C copper lines only! For UL and CSA applications, the supply voltage must be protected via 5 A fuses.

Risk of property damage due to unprofessional installation!

The connecting lines L1/+, L2, L3/- to the system to be monitored must be carried out as spur lines. Inadmissible load current can result in damage to property and personal injury. Do not apply any load current to the terminals.

Check proper connection!

Prior to commissioning of the installation, check that the device has been properly connected and check the device functions. Perform a functional test using an earth fault via a suitable resistance.

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ConnectionConnection

WARNING

6.2 Connection to a 3(N)AC system

Risk of injury, fire and damage to property due to a short circuit!

According to DIN VDE 0100-430, devices used to protect against a short circuit when terminals L1/+, L2 und L3/- are coupled to the IT system to be monitored can be omitted if the wiring is carried out in such a manner as to reduce the risk of a short circuit to a minimum. Ensure short-circuitproof and earth-fault-proof wiring.

6.3 Connection to an AC system

Risk of injury, fire and damage to property due to a short circuit!

Position the terminal cover and click it into place

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ConnectionConnection

WARNING

L+

L-

I1 I2 I3

A B

M+

Q2 Q1

Electrical overload protection. Auto shut-off in the event of a short circuit and transients (resettable)

Input 1 Input 2 Input 3 RS-485 A RS-485 B

Ground Analogue output Output 2 Output 1 +24 V

6.4 Connection to a DC system

Risk of injury, fire and damage to property due to a short circuit!

6.5 Connection to the X1 interface

Position the terminal cover and click it into place

For systems > 690 V and with overvoltage category III a fuse for the connection to the system to be monitored must be provided. Recommendation: 2 A fuses.

Position the terminal cover and click it into place

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ConnectionConnection

CAUTION

6.6 Connection to the supply voltage

Danger of damage to property due to faulty connections!

The device can be damaged if the unit is simultaneously connected to the supply voltage via the X1 interface, and A1/+ and A2/- terminals. Do not connect the device simultaneously via X1, and A1/+ and A2/- to different supply voltages.

6.7 Connection to the Ethernet interface

Position the terminal cover and click it into place

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ConnectionConnection

11 12 14

Relais 1

Gemeinsamer Kontakt

Schließer

21 22 24

Relais 2

Gemeinsamer Kontakt

Schließer

Öffne

6.8 Connection to the relay 1 interface (11 12 14)

Position the terminal cover and click it into place

6.9 Connection to the relay 2 interface (21 22 24)

Position the terminal cover and click it into place

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ConnectionConnection

CAUTION

6.10 Connection to the BB bus

The BB bus is an interface that enables Bender devices to communicate with each other. The BB bus can be used with an ISOMETER® and one or more EDS44…-S. For this purpose, the BB bus is installed at the rear side of both devices and afterwards, both devices are mounted next to each other on the DIN rail. For further information, refer to the quickstart guide enclosed to the BB bus PCBs.

Sensor variant devices that are additionally connected to the ISOMETER® do not require additional supply voltage when the devices are connected to the BB bus via X3.

6.11 Connecting the EDS to the ISOMETER®

Risk of malfunctions due to excessive locating current on sensitive system parts!

Risk of incorrect measurement

The supplied locating current may influence other connected insulation fault location systems. If they measure the injected locating current, the measurement might be incorrect.

Insulation monitoring is deactivated while the insulation fault location is active.

The EDS44…-S must be connected to the ISOMETER® via the BB bus. The EDS44…-L must be connected to the ISOMETER® via the BS bus.

A maximum of two EDS44…-S can be connected to an ISOMETER®.

When the BB bus is installed, the EDS44… must always be mounted on the right side of the ISOMETER®. In addition, for protection against short circuits, a BB bus end bracket must be mounted to each first and last device on the DIN rail featuring a BB bus.

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Page 27

Connection

6.11.1 Connection example ISOMETER® to EDS

A1/+ A2/-

PGH ON

L1/+

IT-System

>20

23 s

R(an)

4 0 kΩ/10kΩ

to the loads to the loads

I LI

L3/-

O K

MΩ

MΩ>20

KE E

ISOSCAN®

BB-Bus

EDS440

to the loads to the loads

A1/+ A2/-

EDS440

ISOSCAN®

COM

SERVICE

ALARM

EDS440

CHANNELS

1 2 3456

SLAVE ADDRESS

∆

ISOSCAN®

iso685-D-P EDS44…-S EDS44…-L

BS-Bus

I LI

TEST

11109

RESET

MUTE

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Connection

BS-Bus

PGH ON

IT-System

R(an)

4 0 k Ω/10kΩ

>20

MΩ>20

MΩ

to the loads to the loads

A1/+ A2/-

L1/+

L3/-

KE E

ISOSCAN®

EDS440

ISOSCAN®

TEST

MUTE

RESET

ALARM

COM

SERVICE

CHANNELS

SLAVE ADDRESS

11109

123456

I LI

∆

A1/+ A2/-

l k

1 2 3 4 5 6 7 8 9 10 11 12

13 14 23 24X1

A1 A2

6.11.2 Connection to a 3(N)AC system

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Page 29

Connection

BS-Bus

IT-System

R(an)

4 0 k Ω/10kΩ

>20

MΩ>20

MΩ

to the loads

PGH ON

A1/+ A2/-

L1/+

L3/-

KE E

ISOSCAN®

EDS440

ISOSCAN®

TEST

MUTE

RESET

ALARM

COM

SERVICE

CHANNELS

SLAVE ADDRESS

11109

123456

I LI

∆

13 14 23 24X1

A1/+ A2/-

l k

1 2 3 4 5 6 7 8 9 10 11 12

A1 A2

6.11.3 Connection to an AC system

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Connection

BS-Bus

IT-System

R(an)

4 0 k Ω/10kΩ

>20

MΩ>20

MΩ

L+

L-

to the loads

A1/+ A2/-

L1/+

L3/-

KE E

ISOSCAN®

EDS440

ISOSCAN®

TEST

MUTE

RESET

ALARM

COM

SERVICE

CHANNELS

SLAVE ADDRESS

11109

123456

I LI

∆

A1/+ A2/-

l k

1 2 3 4 5 6 7 8 9 10 11 12

13 14 23 24X1

A1 A2

PGH ON

6.11.4 Connection to a DC system

For systems > 690 V and with overvoltage category III a fuse for the connection to the system to be monitored must be provided. Recommendation: 2A screw fuses.

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Connection

PGH ON

IT-System

R(an)

4 0 kΩ/10kΩ

>20

MΩ>20

MΩ

A1/+ A2/-

L1/+

L3/-L2KE E

ISOSCAN®

EDS440

EDS441

ISOSCAN®

I LI

PLC Input Output

VFD

AC 24 V DC 110 V

6.11.5 System structure

The application example below shows the monitoring of a control system with the ISOMETER® iso685-D-P and the EDS441-S.

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7. Commissioning

Commissioning the ISOMETER

Adjust basic settings if

necessary

Control and/or connect the EDS

to the ISOMETER

* EDS44…-L: use BS bus

* EDS44…-S: use BB-Bus

Make any other necessary

settings for the EDS44… in the

ISOMETER

menu: EDS

Set the maximum locating current

in the ISOMETER

menu:

EDS General Current

* EDS440…: 10…50 mA

* EDS441…: 1…5 mA

Install the device according to the

wiring diagram

and documentation

Connect the supply voltage

Connect the system voltage

The ISOMETER

performs a self

test

Function test with a suitable resistance between system and earth. Resistance value: 50% of

the response value Alarm 2

Remove the resistance

The ISOMETER

is properly

connected and

functions reliably

Commissioning the EDS44…

Function test with a suitable

resistance between system and

earth. Resistance value: 50% of

the response value Alarm 2

Remove the resistance

The ISOMETER

and EDS44...

combination is properly connected

and functions reliably

Set BS address = 1 (Master)

System commissioning of

ISOMETER

with EDS44…

Install the device according to the

wiring diagram and documentation

Connect the supply voltage

Delete the alarm messages as

described in the device

documentation

The EDS44… is properly

connected and ready for operation

Disconnect supply voltage

of all devices

Connect the supply voltage

to all devices

Search for adjustable measuring

channels in the ISOMETER

menu: EDS Scan for channels

Activate measuring channels in

ISOMETER

menu:

EDS Enable channel

Run the commissioning

wizard

The ON LED flashes until the

device is ready for use

Set EDS mode in the ISOMETER®

menu: EDS General

Mode

EDS44…-L:

Set the BS adress using

the rotary switches on the EDS

For further information regarding device settings, refer to chapter “Settings”

from page 44.

Commissioning

7.1 General initial commissioning process

1. Check that the ISOMETER® is properly connected to the system to be monitored.

2. Connect the supply voltage to the ISOMETER®. Adjust the device using the commissioning wizard. Afterwards, the ISOMETER® performs a self test in four steps. The alarm relays are not checked during this test. After completion of the test, the measured insulation resistance is shown on the display. If the value exceeds the response values indicated in the lowest line of the display, the message "OK" will additionally be displayed.

3. Check the ISOMETER® in the system being monitored, e.g. using a suitable resistance to earth.

After setting the response value R first measurement and outputs the measured insulation resistance values of the IT system being monitored, then commissioning is completed.

For customer-specific configured devices, the commissioning wizard might be deactivated and cannot be run. In this case, the device is preset. However, the commissioning wizard can be started as described at

“Recommissioning” on page 34.

Observe device status!

The device is in an alarm state until initial commissioning has been completed.

for alarm 2, the device starts a self test, makes the

an2

Commissioning flow chart

iso685-D-P_D00170_00_M_XXDE/06.2016

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CommissioningCommissioning

Date 5.2.4

14.01.2014

min. 1 max. 31

Commissioning 6.6

2/9

Please set the

current date

and time.

6.6.6

• DC o AC o 3AC

System type

6.6

5/11

Commissioning

Please choose the

type of system

that best suits

your installation.

6.6.7

Profile

• Power circuits o Control circuits o Generator o High capacitance o Inverter>10 Hz o Inverter<10 Hz

Commissioning 5.6

Please select a profile that suits your application.

7/9

Mode

•

manual

auto

1 cycle

6.6.8

Commissioning 6.6

Please select the

EDS mode.

7/11

7.2 Initial commissioning

Check network function!

When the device has been integrated into a network, the influence on the network has to be checked with the device switched on and off.

Follow the instructions of the commissioning wizard on the display.

7.2.1 Set language

The language selected here will be used in the menu and for device messages.

Language

• Deutsch o English o ...

7.2.2 Set time and date

Alarm messages in the history memory and the insulation resistance value over time can only be assigned correctly to the isoGraph when the date and time are set correctly.

6.6.2

7.2.3 Setting system type

By setting the system type the insulation monitoring device can be optimally adapted to the system to be monitored. The system type is essential information for the insulation monitoring device in order to determine the insulation resistance correctly.

7.2.4 Set profile

In order to optimally adapt the insulation monitoring device to the system to be monitored, select a profile here that suits your system. For an overview of the profiles refer to

“Device profiles” on page 73. The profile "Power circuits" is suitable for most IT systems.

7.2.5 Setting EDS mode

Set the mode for the insulation fault location to manual, automatic or 1 cycle. For further information, refer to “Mode” on page 52.

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CommissioningCommissioning

Current

6.6.9

o 1mA o 1.8mA o 2.5mA o 5mA

• 10mA

Commissioning 6.6

Please select

the locating

current

8/11

Alarm 1 5.6.8

40 kΩ

Min. 1 kΩ Max.

10MΩ

Commissioning 5.6

Please set a

response value

for R(an1) for

Alarm 1.

7/9

Alarm 2 5.6.9

10 kΩ

Min. Max.

1 kΩ 10MΩ

Commissioning 5.6

Please set a

response value

for R(an2) for

Alarm 2.

8/9

7.2.6 Setting EDS current

Set the maximum locating current. EDS441: 1-5 mA EDS440: 10-50 mA For further information, refer to “Current” on page 51.

7.2.7 Set response value R

You can set the prewarning response value here. A value of 100 Ω/V is recommended for prewarning.

for alarm 1

an1

7.3 Recommissioning

If the device has already been put into operation once, the self test will be carried out shortly after connecting the supply voltage. The commissioning wizard will not restart. You can restart the commissioning wizard using the following menu path:

Menu/Device settings/Commissioning

This menu can be used to modify settings made previously.

Observe device status!

Once initial commissioning has been completed and the initial measurement has been taken, the device changes from the alarm state to normal state by adhering to the set response values.

7.2.8 Set response value R

You can set the response value for the main alarm here. A value of 50 Ω/V is recommended for the main alarm.

for alarm 2

an2

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7.4 Commissioning EDS

Channel

√ BB-Bus BS-Bus

33 %

Scanning channels 2.2

Search for

EDS channels?

Cancel Start

Channel

√ BB-Bus BS-Bus

33 %

Activating channels 2.3

Select all No selection Invert selection

Channel 1 Channel 2

Current

6.6.9

o 1mA o 1.8mA o 2.5mA o 5mA

• 10mA

Proceed as follows to put into operation an EDS after commissioning the ISOMETER®:

1. First, search for all available measuring channels. Menu path: Menu/EDS/Scan channels.

2. Activate all or only selected measuring channels. Additionally, select the required menu item, confirm your selection with "OK" and start activation with Menu path: Menu/EDS/Activate channel.

CommissioningCommissioning

3. Test if the maximum locating current to the EDS is correct and adjust if necessary (refer to 7.2.6 “Setting EDS current” on page 34). Menu path: Menu/EDS/General/Current

In addition to this chapter, commissioning of the ISOMETER® in combination with an EDS is described in the “Commissioning flow chart” on page 32.

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8. Display

IT System

OK 230 kΩ

R(an) 40kΩ/10kΩ

OK 230 kΩ

PGH ON

Display

8.1 Standard display

During normal operation, the ISOMETER® displays the message OK and below, the currently measured insulation resistance.

The signal quality of the measurement suits the selected profile. The better the signal quality, the faster and more exact the device can measure.

The signal quality of the measurement does not suit the selected profile. Select a different measurement profile.

Update period between the test pulses

In the bottom line of the display, the set limit values for R(an) are indicated. In the example below, R

=40 kΩ and R

an1

an2

=10 kΩ.

8.2 Fault display (active)

An active fault is displayed by . The upper part of the display will become orange and displays the fault message.

Depending on the type of fault, the LEDs ALARM 1, ALARM 2 or SERVICE are activated.

In the example below, the insulation resistance is still 7 kΩ. Since the values R and R triggered.

If several fault messages have appeared, you can navigate through the faults using the

=10 kΩ are both below the set response value, ALARM 1 and ALARM 2 have been

an2

and button.

Insulation fault

PGH ON

7 kΩ

=40 kΩ

an1

1/4

If the value falls below R ditional detailed information regarding the DC offset will be displayed as illustrated above.

in a DC system or a DC offset is detected in an AC system, ad-

an1

iso685-D-P_D00170_00_M_XXDE/06.2016

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DisplayDisplay

230 kΩ

IT System

1/4

230 kΩ

PGH ON

7 kΩ

Insulation fault

28.0 3.14 17:02

28.0 3.14 17:18

2/4

7 kΩ

PGH ON

8.3 Fault display (inactive)

An inactive fault is displayed by . If several faults have occurred, the number of faults will also be indicated.

The message shown on the display below means that there has been a fault in the past but the device is no longer in fault condition.

If several fault messages have appeared, you can navigate through the faults using the

and buttons. In addition to the type of fault and the associated alarm value, you can

see when the fault has occurred and for how long it has been active.

iso685-D-P_D00170_00_M_XXDE/06.2016

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DisplayDisplay

RESET 3.2

Reset current

messages? All

messages are

saved in the

history memory.

Cancel RESET

PGH ON

1,0 ,10 0 ,010 ,001 MΩ

Hour 16:26 16:52

Data-isoGraph 2

1/4

PGH ON

Change parameter value Leave view Modify scale Modify scale Change parameter value

Current time scale

8.4 Acknowledging a fault message

In order to acknowledge the fault message and return to the ISOMETER®'s standard display, all faults must be acknowledged by means of the reset button.

This means that fault messages can only be reset when the cause of the fault has been eliminated.

Press the reset button, then and OK to clear the fault memory. The ISOMETER® then returns to the standard display.

8.5 Data - isoGraph

The isoGraph represents the chronological sequence of the insulation resistance over time. This graphical representation can be displayed over the following time periods: hour, day, week, month and year. The measured values for individual representations are stored in a separate memory. Up to 100 measured values are available to represent each graph. and the resolution of each graph is determined by these values.

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DisplayDisplay

History 4.1

Insulation fault

11kΩ

28.0 3.14 17:0 2

28.03.14 17:18

8/8

PGH ON

Next message

Leave view

8.6 History memory

Up to 1023 alarm messages and device errors are stored in the history memory with date and time stamp. When the history memory is deleted, the minimum insulation resistance

will also be reset at Menu/Data Measured values - Data insulation.

min

Fault description Alarm value

Feault occured Fault disappeared Previous message

Number of selected errors/ Total number of error messages

8.7 Insulation fault location

When EDS mode is activated, the ISOMETER® indicates the message "Ins. fault locat.". Below, on the left side it indicates which EDS mode is activated. On the right side it indicates the polarity change of the measuring pulses including the pause in between .

Positive measuring pulse

Pause

Negative measuring pulse

The insulation fault location has been started manually and runs continuously. No insulation measurement takes place.

43 s

An active fault is displayed by . The upper part of the display will become orange and displays the fault message. The alarm LEDs are lit. If several fault messages have appeared, you can navigate through the faults using the and buttons.

Insulation fault location in auto mode and 1 cycle. Time countdown of a measurement cycle.

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DisplayDisplay

IT-System

1/2

Fault locationFault location

43 s

PGH ON

IT-System

1/2

Fault locationFault location

PGH ON

IT System

Initial

measurement

Initial

measurement

R(an) 40kΩ/10kΩ

PGH ON

Insulation fault location in auto mode and 1 cycle.

Insulation fault location has been started manually.

8.8 Initial measurement

During the initial measurement, the device records all measured values. All measured values that may have been recorded before will be discarded if a new initial measurement is started.

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9. Menu

9.1 Menu structure

1. Alarm settings

1. Insulation Alarm

2. DC alarm

3. Profile

4. System type

5. ISOnet

6. Device

7. T(start)

8. Coupling monitoring

9. Inputs

10. Outputs

1. Alarm 1

2. Alarm 2

3. Memory

1. Alarm

2. U(DC-E)

1. ISOnet

2. Number of devices

1. Digital 1

2. Digital 2

3. Digital 3

1. Relay 1

2. Relay 2

3. Digital 1

4. Digital 2

5. Buzzer

6. Analog

1. Mode

2. t(on)

3. t(off)

4. Function

1. Mode

2. t(on)

3. t(off)

4. Function

1. Mode

2. t(on)

3. t(off)

4. Function

1. TEST

2. Relay mode

3. Function 1

4. Function 2

5. Function 3

1. TEST

2. Relay mode

3. Function 1

4. Function 2

5. Function 3

1. TEST

2. Mode

3. Function 1

4. Function 2

5. Function 3

1. TEST

2. Mode

3. Function 1

4. Function 2

5. Function 3

1. TEST

2. Function 1

3. Function 2

4. Function 3

1. Mode

2. Scale centre

3. TEST

4. Function

2. EDS

1. General

2. Scan for channels

3. Enable channel

4. Group settings

5. Channel

6. Outputs

7. Inputs

8. Device

9. Service

1. Current

2. Mode

2. Use portable EDS

1. Channel

2. Outputs

3. Digital Input

4. Device settings

1. Name

2. CT monitor

3. I∆L Response value

4. I∆n Response value

1. Relay

2. Buzzer

3. Digital Output

1. Mode

2. t(on)

3. t(off)

4. Function

1. Name

2. Trigger

3. Fault memory

1. CT

2. CT monitor

3. I∆L Response value

4. I∆n Response value

1. Relay

2. Buzzer

3. Digital Output

1. Mode

2. t(on)

3. t(off)

4. Function

1. System type

2. Frequency

3. Trigger

4. Fault memory

1. TEST

2. Relay mode

3. Function 1

4. Function 2

5. Function 3

1. TEST

2. Function 1

3. Function 2

4. Function 3

1. TEST

2. Function 1

3. Function 2

4. Function 3

1. TEST

2. Relay mode

3. Function 1

4. Function 2

5. Function 3

1. TEST

2. Function 1

3. Function 2

4. Function 3

1. TEST

2. Function 1

3. Function 2

4. Function 3

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3. Data measured values

Current

6.6.9

o 1mA o 1.8mA o 2.5mA o 5mA

• 10mA

Date 5.2.4

14.01.2014

min. 1 max. 31

Ethernet 6.3.2

-.0123456789abcdef ghijklmnopqrstuvwx yz del

4. Cont rol

5. Histor y

6. Device settings

7. Info

1. Language

2. Clock

3. Inter face

4. Display

5. Password

6. Commissioning

7. Backup

8. Service

1. Time

2. Format

3. Summertime

4. Date

5. Format

6. NTP

7. NTP Servier

8. UTC

1. Write access

2. Ethernet

3. BCOM

4. Modbus TCP

5. BS bus

1. Brightness

1. Password

2. Status

1. DHCP

2. IP

3. SN

4. Std. GW

5. DNS-Server

6. Domain

1. Systemname

2. Subsystem

3. Device Address

4. Timeout

5. TTL for Subscription

1. Port 502

1. Address

MenuMenu

9.2 Operating and navigating

Navigate through the device menu using the device buttons. The functions of the device buttons are described in the chapter “Display elements and device buttons” on page 18.

9.2.1 Easy operation

Navigation in lists

To make a selection in a list, navigate using the and buttons to the required menu item. Then click "OK".

Navigation with arrows

You can increase or decrease a value using the and buttons. You can move to the left or the right to set different values using the and buttons. The value positioned between the symbols is the value that is set.

Text input

Go step by step through the numbers and letters indicated on the display by using the button (forwards) and the button (backwards). Navigate to the right using the button to enter the next character. To delete a character that has been entered, use the and buttons to navigate to the character to be deleted and then select "del" using the and buttons. Confirm the entered text with "OK".

The menu structure may vary when different EDS types are connected.

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Page 43

9.2.2 Multiple selection in the device menu

Activating channels 2.3

Select all No selection Invert selection

Channel 1 Channel 2

At some points in the menu, you can select several channels, relays, etc. at a time. Thereby, you can make settings for several selection points simultaneously.

Select 1…n selection points using the and buttons. Each selection in the list must be confirmed with "OK". If you have made your selection, there are two options depending on the menu item:

• Navigating to the settings for the previous selection using .

• Initiating the respective action (e.g. activate selected channels) using .

MenuMenu

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Page 44

10. Settings

120 V

DC+

DC-

100 V

200 V

0 V

-80 V

-100 V

DC-E

=(U1+U2)/2=(120 V-80 V)/2=20 V

DC-E

Settings

10.1 Settings in the device menu

The settings of the ISOMETER® are explained in the order of the device menu.

10.1 1.0 Alarm settings

The limit values for the insulation resistances of alarm 1 and alarm 2 can be specified in the alarm settings menu and can be adapted to the user profile of the ISOMETER®. A device password is required for entering the settings. You can adjust the following functions:

10.1 1.1 Insulation alarm

In the Insulation alarm menu, the ISOMETER® limit values for alarm 1 and alarm 2 can be set. Activation or deactivation of the two alarm levels R

(alarm 1) and R

an1

lustrated in the following graphic: An alarm will become inactive as soon as the hysteresis of the set operating value is exceeded.

Alarm 1 inactive

hysteresis

an1

an2

Alarm 1 active

Alarm 2 active

hysteresis

Alarm 2 inactive

10.1 1.1.1 Alarm 1

For alarm 1 an insulation resistance of 1 kΩ…10 MΩ can be set irrespective of alarm 2.

(alarm 2) are il-

an2

10.1 1.1.3 Fault memory

Automatic reset of inactive faults at the outputs relay 1, relay 2, digital output 1, digital output 2:

•on

•off

If a fault becomes inactive, the programmed outputs remain in fault condition until they are reset manually.

If a fault becomes inactive, the programmed outputs automatically change the state.

10.1 1.2 DC alarm

The DC alarm is triggered in the event of a DC offset voltage (U

) in the system.

DC-E

10.1 1.2.1 Alarm

•on

•off

The DC alarm is triggered in the event of a DC offset voltage.

The DC alarm is NOT triggered in the event of a DC offset voltage.

10.1 1.2.2 U(DC-E)

Set the DC alarm to a value between 20 V and 1 kV.

10.1 1.1.2 Alarm 2

For alarm 2 an insulation resistance of 1 kΩ…10 MΩ can be set irrespective of alarm 1.

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Page 45

SettingsSettings

10.1 1.3 Profile

Adapt the area of application of the ISOMETER® to your system profile. For a description of the profiles, refer to “Device profiles” on page 73. The following can be selected:

•Power circuits

•Control circuits

•Generator

•High capacitance

•Inverter > 10 Hz

•Inverter < 10 Hz

Suitable for most IT systems.

Not recommended for voltages > 230 V.

Fast measuring times, fast fault location possible.

Suitable for system with high leakage capacitances.

Suitable for systems with dynamic frequency control by inverters in the range 10 to 460 Hz.

Suitable for systems with extremely low frequency control in the range 1…460 Hz.

10.1 1.4 System type

Adapt the ISOMETER® to the IT system to be monitored. The following can be selected:

•DC

•AC

•3AC

DC system (refer to “Connection to a DC system” on page 30)

Single-phase AC system (refer to “Connection to an AC system” on page 29)

3AC system (refer to “Connection to a 3(N)AC system” on page 28)

10.1 1.5 ISOnet

Make the settings to use the ISONet function. The ISOnet function ensures via the Ethernet connection that only one ISOMETER® of the interconnection is active when several ISOMETER®s are connected to an IT system. For further information regarding the ISOnet function, refer to “System isolation via ISOn-

et” from page 71.

10.1 1.5.1 ISOnet

Activate or deactivate the ISONet function

•off

•BCOM

The ISOnet is deactivated

The ISOnet function is activated via BCOM

10.1 1.5.2 Number of devices

Configure the number of devices (2…20) in a subsystem.

10.1 1.6 Device

Set the ISOMETER® insulation resistance measurement function to active or inactive:

•Active

•Inactive

10.1 1.7 T(Start)

The device is active.

The device DOES NOT measure the insulation resistance, the message Device inactive appears on the display. The IT system is NOT being monitored!

The ISOMETER® can be operated with a start-up delay of 0…120 seconds. The start-up is delayed until the initial measurement takes place.

10.1 1.8 Coupling monitoring

The ISOMETER® continuously monitors the coupling of energised systems. The coupling of de-energised systems is monitored at 8-hour intervals. This monitoring function can be activated or deactivated.

•on

•off

Coupling monitoring is activated.

Coupling monitoring is deactivated.

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10.1 1.9 Inputs

I2 I3

A B

M+

Q2 Q1

Device inactive

Reset Test

t(on)

Reaction Impulse on

Reaction Impulse o

t(on)

Reaction Reaction

Impulse onImpulse o

The ISOMETER® provides a total of three digital inputs. The exemplary wiring diagram shows how the digital inputs can be wired:

SettingsSettings

•Active low

An event is carried out on the falling edge of the digital input (high to low). Response time t(on)/t(off) after a switch-off signal.

X1 X1

10.1 1.9.1 Digital 1

The following parameters can be set for the digital input:

10.1 1.9.1.1 Mode

The operating mode for the digital input can be set to the following values:

10.1 1.9.1.2 t(on)

The response time t(on) after a switch-on signal can be set between 100 milliseconds and

< t(on)

300 seconds (refer to “10.1 1.9.1.1 Mode”).

•Active high

< t(on)

An event is carried out on the rising edge of the digital input (low to high). Response time t(on)/t(off) after a switch-on signal.

X1 X1

10.1 1.9.1.3 t(off)

The response time t(off) after a switch-off signal can be set between 100 milliseconds and 300 seconds (refer to “10.1 1.9.1.1 Mode”).

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SettingsSettings

≥ 1

Response

Function 1

Function 2

Function 3

10.1 1.9.1.4 Function

The parameters for the function of the digital inputs of the ISOMETER® can be set differently:

•off

•TEST

•RESET

•Deactivate device

•Start initial measurement

•Insulation fault location

Digital input without function

Device self test

Reset of fault and alarm messages

The device DOES NOT measure the insulation resistance, the message appears on the display. The IT system is NOT being monitored! The device uncouples itself from the system to be monitored through an internal system isolating switch.

All recorded measurements are discarded and a new measurement is started

The insulation fault location is started.

Device inactive

10.1 1.9.2 Digital 2

Refer to “10.1 1.9.1 Digital 1”.

10.1 1.9.3 Digital 3

Refer to “10.1 1.9.1 Digital 1”.

10.1 1.10 Outputs

The ISOMETER® provides a total of six outputs. The following parameters can be set for the outputs:

10.1 1.10.1 Relay 1

The following parameters can be set for each relay:

10.1 1.10.1.1 TEST

The functional test of the relay can be activated or deactivated. This only applies to the manual test and not to the cyclic device self test:

•on

•off

The manual test checks the switching function of the relay

The manual test does not check the switching function of the relay

10.1 1.10.1.2 Relay operating mode

The relay mode can be adapted to the application:

•N/C

•N/O

Normally closed- N/C operation contacts11-12-14 / 21-2224 (in fault-free condition, the alarm relay is energised).

Normally opened - N/O operation contacts (in fault-free condition, the alarm relay is de-energised).

11-12-14 /

21-22-24

10.1 1.10.1.3 Function 1

Up to three functions can be assigned to one output. The functions are linked to an OR operator:

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Page 48

SettingsSettings

DC+ alarm

Symmetrical alarm

DC- alarm

0 %

25 %

50 %

75 %

100 %

Select the appropriate setting for function 1. The following parameters can be set.

•off

•Ins. Alarm 1

•Ins. Alarm 2

•Connection fault

•DC alarm

•DC+ alarm

The function is not used.

The status of the output changes when the value falls below the set response value R

The status of the output changes when one of the following connection fault occurs:

• No low-resistance connection between the line conductors.

• No low-resistance connection between the terminals E and KE to earth (PE).

• The load connected to the current output is too low

• The load connected to the current output is too high.

• Load on X1 too high.

The status of the output changes in case of an earth fault in the direction of DC when 75 % of the value are exceeded. This does not concern symmetrical faults. This function will only be carried out when the value falls below the response value R

tem voltage is U

The status of the output changes in case of an earth fault in the direction of DC+ when 25 % of the value are exceeded. This does not concern symmetrical faults. This function will only be carried out when the value falls below the response value R

tem voltage is U

≥ 50 V.

an1.

an2.

and when the nominal sys-

an1

and when the nominal sys-

an1

•Common alarm

•Measurement complete

•Device inactive

•DC offset alarm

•Common alarm EDS

The status of the output changes on the occurrence of any alarm and fault messages (Ins. alarm 1 & 2, DC- / DC+ alarm, symmetrical alarm, connection and device faults).

The status of the output changes at the end of the initial measurement.

The status of the output changes when the device has been deactivated via a digital input or the control menu.

The status of the output changes on the occurrence of a DC offset voltage in the system.

The status of the output changes on the occurrence of any message triggered by the EDS.

10.1 1.10.1.4 Function 2

Refer to “10.1 1.10.1.3 Function 1”.

10.1 1.10.1.5 Function 3

Refer to “10.1 1.10.1.3 Function 1”.

10.1 1.10.2 Relay 2

Refer to “10.1 1.10.1 Relay 1”.

10.1 1.10.3 Digital 1

The following parameters can be set for each of the digital outputs:

•Symmetrical alarm

•Device fault

The status of the output changes in the event of a resistance ratio between DC+ and DC- of 25 % to 75 %.

The status of the output changes in the event of an internal device fault.

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SettingsSettings

10.1 1.10.3.1 TEST

The functional test of the digital output can be activated or deactivated. This only applies to the manual test and not to the cyclic device self test:

•on

•off

The manual test changes the status of the digital output.

The manual test does not change the status of the digital output.

10.1 1.10.3.2 Mode

The following settings can be used to set the operating mode for the digital output:

•Active

•Passive

In the active mode +24 V will be applied across the output.

X1 X1

In the passive mode the output of the applied potential switches to ground.

X1 X1

10.1 1.10.4 Digital 2

Refer to “10.1 1.10.3 Digital 1”.

10.1 1.10.5 Buzzer

The following parameters can be set for the buzzer:

10.1 1.10.5.1 TEST

The functional test of the buzzer can be activated or deactivated. This only applies to the manual test and not to the cyclic device self test:

•on

•off

The manual test activates the buzzer sound.

The manual test does not activate the buzzer sound.

10.1 1.10.5.2 Function 1

Refer to “10.1 1.10.1.3 Function 1”.

10.1 1.10.5.3 Function 2

Refer to “10.1 1.10.1.3 Function 1”.

10.1 1.10.5.4 Function 3

Refer to “10.1 1.10.1.3 Function 1”.

Observe the maximum output current!

Maximum output current in case of internal voltage supply via A1/+ and A2/-: 200 mA in total to X1.

10.1 1.10.3.3 Function 1

Refer to “10.1 1.10.1.3 Function 1”.

10.1 1.10.3.4 Function 2

Refer to “10.1 1.10.1.3 Function 1”.

10.1 1.10.3.5 Function 3

Refer to “10.1 1.10.1.3 Function 1”.

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SettingsSettings

X1 X1

I/U20 mA / 400 µA

10 V

0 mA / 4 mA

0 V / 2 V

1 k

1 M

100

100 k

28 kΩ

120 kΩ

I/U20 mA / 400 µA

10 V

0 mA / 4 mA

0 V / 2 V

120 kΩ28 kΩ

RF =

(A2 - A1) * R

SKM

- R

SKM

- A

SKM

= 28 kΩ or 120 kΩ/midscale

A3= Measured value analogue output

= Insulation fault in kΩ

10.1 1.10.6 Analogue

The following parameters can be set for the analogue output:

10.1 1.10.6.1 Mode

The following values can be set for the operating mode of the analogue output

Current output

•0-20 mA

•4-20 mA

•0-400

μA

Permissible load ≤ 600 Ω

Permissible load ≤ 4 kΩ

Voltage output

•0-10 V

•2-10 V

Permissible load ≥ 1 kΩ

10.1 1.10.6.2 Midscale

Select the appropriate midscale. The following parameters can be set:

•Linear

•28 k

•120 k

The switching signal is linear to the insulation resistance in the indicated measuring range.

The switching signal is analogue to the mid scale of 28 kΩ or 120 kΩ on a measuring instrument.

Calculation of the insulation resistance using the analogue output:

Lower value Analogue output A

0 mA 4 mA 0 µA 0 V 2 V

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Upper value Analogue output A

20 mA 20 mA 400 µA 10 V 10 V

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SettingsSettings

DC+ alarm

Symmetrical alarm

DC- alarm

0 %

25 %

50 %

75 %

100 % 0 V/2 V 0 mA/4 mA 0 µA

10 V

20 mA

400 µA

CAUTION

10.1 1.10.6.3 TEST

The functional test of the analogue output can be activated or deactivated. In this way, the analogue output is adjusted once for the entire range. This only applies to the manual test and not to the cyclic device self test:

•on

•off

The manual test checks the analogue output function.

The manual test does not check the analogue output function.

10.1 1.10.6.4 Function

Select the appropriate setting for the analogue output. The following parameters can be set.

•Insulation value

•DC offset

Depending on the measured insulation value, an analogue current or voltage signal is provided at the output.

Depending on the measured DC offset, an analogue current or voltage signal is provided at the output. This setting can only be used when

Linear is selected in the menu "Midscale".

10.1 2.0 EDS (insulation fault location)

10.1 2.1 General

10.1 2.1.1 Current

Risk of malfunctions due to excessive locating current on sensitive system parts!

Set the maximum locating current in the ISOMETER®. You can find the device-specific maximum locating currents in the table below.

•1 mA

•1.8 mA

•2.5 mA

•5 mA

•10 mA

for EDS441…

for EDS441…, EDS440…

for EDS440…

•25 mA

•50 mA

for EDS440…

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10.1 2.1.2 Mode

Inactive insulation fault location

(insulation measurement)

Active insulation fault location

for 1 cycle

Insulation fault location pauses

(insulation measurement)

Active insulation fault location

continuously

New insulation fault

Mode: auto/1 cycle

No insulation fault

Insulation fault

still present

Manual start

Manual start.

The device retains the

original mode setting

Manual stop.

The device retains the

original mode setting

Mode: 1 cycle

Mode: auto

To locate insulation faults, select one of the three available modes for insulation fault location.

•Manual

•auto

•1 cycle

In manual mode, the insulation fault location does not start automatically. If you start the insulation fault location, it remains active without considering the insulation resistance and the alarm message of the ISOMETER®.

In auto mode, the insulation fault location starts automatically as soon as the response value of alarm 2 of the ISOMETER® has fallen below the preset value. The insulation fault location is cyclically interrupted for an insulation measurement. If the insulation fault still exists after the interruption, the insulation fault location starts again. The insulation fault location only stops if alarm 2 is inactive. If a new insulation fault appears, the insulation fault location restarts automatically.

In 1-cycle mode, the insulation fault location starts automatically as soon as the response value of alarm 2 of the ISOMETER® has fallen below the preset value. The insulation fault location is stopped after one cycle. If the insulation fault still exists after the interruption, the insulation fault location does NOT start again. If a new insulation fault appears, the insulation fault location restarts automatically for one cycle.

SettingsSettings

Do not carry out a manual test during a manually started insulation fault location, since the insulation fault location would be aborted by that.

10.1 2.1.3 Using a portable EDS

If you would like to use a portable EDS, activate this function here. After that, the insulation fault location process will be automatically adjusted.

•on

•off

Insulation faults can be located with a portable EDS.

Insulation faults cannot be located with a portable EDS

If the trigger mode is set to "auto", the use of a portable EDS must be activated in the menu as the measurement method is correspondingly adjusted at this menu point (also refer to “10.1 2.4.4.3 Trigger”).

10.1 2.2 Scanning channels

For a successful insulation fault location, all active measuring channels must be determined. Indicate if you would like to start the search for EDS measuring channels.

•Cancel

•Start

Aborts the scan process.

Starts the scan process (search) for EDS channels.

Also refer to “Commissioning EDS” on page 35.

If one bus device fails, the ISOMETER® asks whether it should search for measuring channels and then automatically determines all channels again. Also refer to

“Alarm messages” from page 78

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SettingsSettings

10.1 2.3 Activating channels

During initial commissioning all channels are inactive. Before configuring the channels they must be activated in this menu. Select which measuring channels you would like to activate. Multiple selection is possible here.

•Select all

•No selection

•Invert selection

•Channel 1(BS 2/1)

All measuring channels are selected.

No channel is selected.

The current selection is inverted.

A single channel is selected.

…

•Channel 12 (BS 2/

12)

Navigate to the required selection point using the and buttons. Confirm your selection by pressing "OK". The selected channels are activated with the button.

10.1 2.4 Group settings

Use group settings to adjust the settings for several EDS or EDS channels simultaneously or to read out settings.

If you would like to make settings for each EDS or each EDS channel individually, then please refer to the menus from “10.1 2.5 Channel” to “10.1 2.8 Device”.

10.1 2.4.1 Channel

Before configuring a measuring channel, you must activate it. Select which measuring channel you would like to activate and configure.

•Select all

•No selection

•Invert selection

•Channel 1 (BS 2/1)

All measuring channels are selected.

No channel is selected.

The current selection is inverted.

A single channel is selected.

•Channel 2 (BS 2/2)

•Channel 3 (BS 2/3)

Navigate to the required selection point using the and buttons. Confirm your selection by pressing "OK". Activate the selected measuring channel using the button and navigate to its setting options.

10.1 2.4.1.1 Current transformer (CT)

Set the used current transformer.

•Type A

•Type AB

W…/WR…/WS…/ W/WS8000

W…A B

The values indicated in the group settings are not the values of the individual EDS but the factory settings or the last adjusted values in the ISOMETER®. To see the values of the individual EDS, please navigate to the menu points “10.1 2.5 Channel” to “10.1 2.8 Device”.

10.1 2.4.1.2 CT monitoring

Activate or deactivate the CT monitoring. If CT monitoring is active, an alarm is signalled as soon as a fault occurs on a current transformer of an activated channel (short circuit or interruption).

•on

•off

CT monitoring is activated (the current transformers are monitored).

CT monitoring is deactivated (the current transformers are not monitored).

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SettingsSettings

CAUTION

10.1 2.4.1.3 IΔL Response value

Set the response value for I

(main alarm for insulation fault location) between 200 µA

∆L

and 10 mA. The response value must be below the set locating current (refer to 7.2.6 “Setting EDS current” on page 34

The permissible response value and the response sensitivity depend on the connected EDS (EDS440… or EDS441…).

10.1 2.4.1.4 IΔn Response value

Set the response value for I

(alarm for residual current measurement) between 100 mA

∆n

and 10 A.

The permissible response value and the response sensitivity depend on the connected EDS (EDS440… or EDS441…).

10.1 2.4.2 Outputs

In this menu, the settings for the outputs of the EDS can be made.

•Relays

10.1 2.4.2.1 Relays

Select the relays that you would like to configure.

•Select all

•No selection

•Invert selection

•Relay 1 (BS 2/1)

All relays are selected.

No relay is selected.

The current selection is inverted.

A single relay is selected.

•Relay 2 (BS 2/2)

10.1 2.4.2.1.1 TEST

The functional test of the relay can be activated or deactivated. This only applies to the manual test and not to the cyclic device self test.

•on

•off

The manual test checks the switching function of the relay.

The manual test does not check the switching function of the relay.

10.1 2.4.2.1.2 Operating mode

The relay operating mode can be adapted to the application.

•Buzzer

•Dig. output

•N/C

•N/O

Normally closed- N/C operation contacts11-12-14 / 21-2224 (in fault-free condition, the alarm relay is energised).

Normally opened - N/O operation contacts 11-12-14 / 21-2224 (in fault-free condition, the alarm relay is de-energised).

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SettingsSettings

≥ 1

Response

Function 1

Function 2

Function 3

10.1 2.4.2.1.3 Function 1

Up to three functions can be assigned to one output. The functions are linked to an OR operator:

Set the function for the outputs:

•off

•I

ΔL

•I

ΔN

•Device fault

•Connection fault

•Insulation fault location active

The function is not used.

The status of the output changes if an insulation fault is detected (EDS function) on one of the measuring channels.

The status of the output changes if the residual current (RCM function) is exceeded.

The status of the output changes in the event of an internal device fault.

The status of the output changes when one of the following measuring current transformer connection faults occurs:

• Measuring current transformer defective

• Power supply cable interrupted

• Power supply cable short-circuited

The buzzer signals active insulation fault location can only be set for buzzer).

10.1 2.4.2.2 Buzzer

Select the buzzers that you would like to configure.

•Select all

•No selection

•Invert selection

•Buzzer 1 (BS 2/1)

All buzzers are selected.

No buzzer is selected.

The current selection is inverted.

A single buzzer is selected.

Now assign the events on which the buzzers should be triggered.

10.1 2.4.2.2.1 TEST

Refer to “10.1 2.4.2.1.1 TEST”.

10.1 2.4.2.2.2 Function 1

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.4.2.2.3 Function 2

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.4.2.2.4 Function 3

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.4.2.3 Digital output

Select the digital outputs of the EDS that you would like to configure.

•Select all

•No selection

•Invert selection

All digital outputs are selected.

No digital output is selected.

The current selection is inverted.

•Common alarm

The status of the output changes on the occurrence of any alarms and fault messages (I∆L alarm, I∆n alarm, connec-

tion and device fault).

10.1 2.4.2.1.4 Function 2

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.4.2.1.5 Function 3

Refer to “10.1 2.4.2.1.3 Function 1”.

•Dig. output 1 (BS 2/1)

A single digital output is selected.

Now make the settings for the digital outputs of the EDS selected before.

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SettingsSettings

10.1 2.4.2.3.1 TEST

The functional test of the digital output can be activated or deactivated. This only applies to the manual test and not to the cyclic device self test:

•on

•off

The manual test changes the status of the digital output.

The manual test does not change the status of the digital output.

10.1 2.4.2.4 Function 1

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.4.2.5 Function 2

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.4.2.6 Function 3

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.4.3 Dig. input

Select the digital inputs of the EDS that you would like to configure:

•Select all

•No selection

All digital inputs are selected.

No digital input is selected.

10.1 2.4.3.1 Mode

The operating mode for the digital input can be set to the following values. For a description of the operating modes, refer to “Mode” on page 46. The following can be selected

•Active high

•Active low

An event is carried out on the rising edge of the digital input (low to high).

An event is carried out on the falling edge of the digital input (high to low).

10.1 2.4.3.2 t(on)

The response time t(on) after a switch-on signal can be set between 100 milliseconds and 300 seconds. For a description of the operating modes, refer to “Mode” on page 46.

10.1 2.4.3.3 t(off)

The response time t(off) after a switch-off signal can be set between 100 milliseconds and 300 seconds. For a description of the operating modes, refer to “Mode” on page 46.

10.1 2.4.3.4 Function

•off

•TEST

•RESET

Digital input without function.

Device self test.

Reset of fault and alarm messages.

•Invert selection

•Dig. input 1 (BS 2/1)

The current selection is inverted.

A single digital input is selected.

•Dig. input 2 (BS 2/2)

Now make the settings for the digital inputs of the EDS selected before.

10.1 2.4.4 Device settings

•Select all

•No selection

•Invert selection

•BS bus 2 (1-12)

All devices are selected.

No device is selected.

The current selection is inverted.

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SettingsSettings

10.1 2.4.4.1 System type

Settings made to this menu point will only have an effect on connected EDS460 and NOT on EDS44… devices.

Adjust the EDS to the IT system to be monitored.

•DC

•AC

•3AC

DC system

Single-phase AC system

3AC system

10.1 2.4.4.2 Frequency

Settings made to this menu point will only have an effect on connected EDS460 and NOT on EDS44… devices.

Configure the mains frequency of the IT system to be monitored.

•50 Hz

•60 Hz

•400 Hz

•DC

10.1 2.4.4.3 Trigger

The locating current pulse of the ISOMETER® is synchronised with the measurement technology in the EDS via the BB bus or the BS bus. This allows a more reliable detection of the locating current pulse in the event of disturbances. Disturbances can be caused e.g. by variable-speed drives, rectifiers, actuators, noise filters, PLCs, or control electronics.

•Com

•auto

Synchronisation via BS bus or BB bus. The EDS only searches for insulation faults if the insulation fault location has been started. Less time is needed for the insulation fault location as with the setting "auto".

No synchronisation (e.g. if there is no BS bus or BB bus). The EDS continuously searches for insulation faults.

If the trigger mode is set to "auto", the use of a portable EDS must be activated in the menu (menu item “10.1 2.1.3 Using a portable EDS” = "on"), since the measurement method is correspondingly adjusted at this menu point.

10.1 2.4.4.4 Fault memory

Faults that only occur temporarily can be saved.

•on

•off

After eliminating the cause of fault, alarm messages remain stored until a RESET is carried out. This function applies to alarm and device fault messages.

The EDS exits the alarm mode as soon as the cause of fault is eliminated.

10.1 2.5 Channel

In this menu, each channel can be configured. Also refer to “10.1 2.4.1 Channel”.

10.1 2.5.1 Name

Enter a name for the selected channel. This name will also be displayed on the gateways and in the web server and can be edited via these as well.

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SettingsSettings

10.1 2.5.2 Current transformer monitoring

Refer to “10.1 2.4.1.2 CT monitoring”.

10.1 2.5.3 Response value I

ΔL

Refer to “10.1 2.4.1.3 I∆L Response value”.

10.1 2.5.4 Response value I

Δn

Refer to “10.1 2.4.1.4 I∆n Response value”.

10.1 2.6 Outputs

In this menu, each output can be configured. Also refer to “10.1 2.4.2 Outputs”.

10.1 2.6.1 Relays

Select the relay that you would like to configure.

•Relay 1 (BS 2/1)

...

10.1 2.6.1.1 TEST

Refer to “10.1 2.4.2.1.1 TEST”.

10.1 2.6.1.2 Operating mode

Refer to “10.1 2.4.2.1.2 Operating mode”.

10.1 2.6.1.3 Function 1

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.6.1.4 Function 2

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.6.1.5 Function 3

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.6.2 Buzzer

In this menu, each buzzer can be configured. Also refer to “10.1 2.4.2.2 Buzzer”.

10.1 2.6.2.1 TEST

Refer to “10.1 2.4.2.1.1 TEST”.

10.1 2.6.2.2 Function 1

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.6.2.3 Function 2

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.6.2.4 Function 3

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.6.3 Digital output

In this menu, each digital output can be configured. Also refer to “10.1 2.4.2.3 Digital output”.

10.1 2.6.3.1 TEST

Refer to “10.1 2.4.2.3.1 TEST”.

10.1 2.6.3.2 Function 1

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.6.3.3 Function 2

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.6.3.4 Function 3

Refer to “10.1 2.4.2.1.3 Function 1”.

10.1 2.7 Inputs

In this menu, each digital input can be configured. Therefore, select a digital input.

•Dig. input 1 (BS 2/1)

•Dig. input 2 (BS 2/2)

10.1 2.7.1 Mode

Refer to “10.1 2.4.3.1 Mode”.

10.1 2.7.2 t(on)

Refer to“10.1 2.4.3.2 t(on)”.

10.1 2.7.3 t(off)

Refer to “10.1 2.4.3.3 t(off)”.

10.1 2.7.4 Function

Refer to “10.1 2.4.3.4 Function”.

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SettingsSettings

10.1 2.8 Device

10.1 2.8.1 Trigger

Refer to “10.1 2.4.4.3 Trigger”.

10.1 2.8.2 Fault memory

Refer to “10.1 2.4.4.4 Fault memory”.

10.1 2.9 Service

The service menu can only be accessed by Bender Service staff.

10.1 3.0 Data measured values

The ISOMETER® stores certain measured values for a specific period of time. You can view these data at the "Data meas. values" menu point. Navigate through the different views using the and buttons:

•isoGraph data

•Insulation data

•IT system data

•EDS data

Displays the insulation resistance and chronological sequence. See

on page 64.

Displays the current insulation resistance, the minimum insulation resistance measured and the system leakage capacitance.

Displays the system phase-to-phase voltages and the mains frequency (r.m.s. values)

Displays the system phase-to-earth voltages

Displays

and buttons to switch between the two options.

Displays the locating current for Insulation fault location

I∆L and

“Device communication”

I∆n in % and ampere. Use the

10.1 4.0 Control

In the control menu, you can start a manual test reset, reset alarm messages and start an initial measurement:

•TEST

•RESET

•Start initial measurement

•EDS

Manual device test

Reset of fault and alarm messages

All recorded measurements are discarded and a new measurement is started

Starting and stopping the insulation fault location

10.1 5.0 History

In the history menu, the faults detected by the ISOMETER® are displayed. For a detailed functional description, refer to “History memory” on page 39:

•History

•Delete

Overview of faults that have occurred

Reset the history memory

10.1 6.0 Device settings

The device settings menu allows you to configure the basic settings for the ISOMETER®:

10.1 6.1 Language

Choose the language to be displayed by the ISOMETER®. For example, you can set the languages:

•German

•English

•...

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SettingsSettings

10.1 6.2 Clock

In the clock menu you can set the display format of time and date for the ISOMETER® iso685:

10.1 6.2.1 Time

Based on the selected time format you can set the current time to display 24-hour or 12hour notation (am/pm).

10.1 6.2.2 Format (time)

Select the appropriate time format to be displayed:

•12 h

•24 h

12-hour notation am/pm

24-hour notation

10.1 6.2.3 Summer time

Summer time can be considered in the following settings:

•off

•DST

•CEST

No automatic change between summer time and standard time.

Daylight Saving Time Automatic change between summer and standard time according to North American regulation. North American summer time begins on each second Sunday in March at 02:00 local time by setting the clock forward by one hour from 2:00 to 03:00 local time. Summer time always ends the first Sunday in October at 03:00 local time by setting the clock back one hour from 3:00 to 2:00.

Central European Summer Time Automatic change between summer time and standard time according to Central European regulation. Central European summer time begins on each last Sunday in March at 02:00 CEST by setting the clock forward by one hour from 2:00 to 03:00. Central European summer time always ends on the last Sunday in October at 03:00 CEST by setting the clock back one hour from 3:00 to 2:00.

10.1 6.2.4 Date

Based on the selected date format you can set the current date.

10.1 6.2.5 Format (date)

Select the appropriate date format you want to be displayed:

•dd.mm.yy

•mm-dd-yy

day, month, year

month, day, year

10.1 6.2.6 NTP

Select if you would like to synchronise the current time via NTP:

•on

•off

Synchronisation via NTP server is activated.

Synchronisation via NTP server is deactivated.

10.1 6.2.7 NTP server

Set NTP server.

10.1 6.2.8 UTC

Set the time according to UTC (coordinated world time). For Germany, set +1 for wintertime (MEZ) and +2 for summer time (MESZ).

10.1 6.3 Interface

Set the parameters for the connection of other devices to the ISOMETER® in the interface menu:

When set to DST or CEST, changing between summer time and normal time is only done on the date of the official time change.

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SettingsSettings

10.1 6.3.1 Write access

Set whether the device can be parameterised externally via Modbus or web server. Displaying and reading out data via Modbus and web server is always possible, regardless of this setting.

•Allow

•Deny

Allow external parameter setting.

Refuse external parameter setting.

10.1 6.3.2 Ethernet

Set the parameters for communication with other devices via the Ethernet interface. The Ethernet interface can be used for communication with Modbus, web server and BCOM.

10.1 6.3.2.1 DHCP

Select whether you want to use automatic address assignment via your DHCP server:

•on

•off

Activate automatic IP address assignment.

Deactivate automatic IP address assignment.

10.1 6.3.2.2 IP

Set the appropriate IP address for the ISOMETER®.

10.1 6.3.2.3 SN

Set the appropriate subnet mask.

10.1 6.3.2.4 Std. GW

If a standard gateway is used, enter the IP address here. Ensure that the IP address of the standard gateway suits the subnet mask, so that the ISOnet function can operate correctly.

10.1 6.3.2.5 DNS server

If a DNS server is used, enter the server's IP address.

10.1 6.3.3 BCOM

Set the parameters for communication with other devices via BCOM. For further information, refer to “BCOM” on page 64.

10.1 6.3.3.1 System name

Set the system name of the network in which the devices are located. In order to guarantee that all devices are able to communicate via BCOM, all devices must have the same system name.

10.1 6.3.3.2 Subsystem

Configure the subsystem address of the network in which the devices are located. The devices can communicate with subsystems with the same or different subsystem addresses. EXCEPTION: In order to use the ISOnet functions, the devices must have the same subsystem address.

10.1 6.3.3.3 Device address

Assign a device address. Each device must have a different address to distinguish it from another in the system and ensure correct communication.

10.1 6.3.3.4 Timeout

Set the timeout for messages between 100 ms…10 s. This time specification defines the maximum permissible time for a device to respond. When exceeding the timeout time in the ISOnet, the fault message "Failure address" is shown.

10.1 6.3.3.5 TTL for subscription

Set a time between 1 s…1092 min. This time defines the intervals at which the ISOMETER® sends messages to e.g. a gateway. Severe alarms (e.g. insulation alarms or substantial value changes) are always sent immediately.

10.1 6.3.4 Modbus TCP

Settings for communication with other devices via Modbus TCP. For further information, refer to “Modbus TCP” on page 64.

10.1 6.3.2.6 Domain

Enter the domain.

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SettingsSettings

10.1 6.3.4.1 Port 502

Choose whether Modbus TCP should be used:

•on

•off

Modbus TCP can be used for communication with other devices.

Modbus TCP cannot be used for communication with other devices.

10.1 6.3.5 BS bus

Set the parameters for communication with other devices via the Bender sensor bus. For further information, refer to “BS bus” on page 68.

10.1 6.3.5.1 Address

Select an address between 1 and 90 for the Bender sensor bus.

10.1 6.4 Display

Adjust the display brightness for the ISOMETER® in the display menu:

10.1 6.4.1 Brightness

Adjust the display brightness between 0 % and 100 % in steps of 10. If no button is pressed on the display for 15 minutes, the brightness of the display is reduced. If now a button is pressed, the normal brightness is restored.

10.1 6.5 Password

Use the password function to protect the device parameters against unauthorised adjustment. The default password is 0000.

10.1 6.5.1 Password

Enter an individual four-digit password.

10.1 6.5.2 Status

Decide if the password query should be used:

•on

Password query active

10.1 6.6 Commissioning

In the commissioning menu you can open the ISOMETER®'s commissioning wizard again.

10.1 6.7 Data backup

In the data backup menu device settings can be saved or device settings already saved can be restored.

•Save

•Restore

The ISOMETER® saves your device settings.

The ISOMETER® restores your initial device settings.

10.1 6.8 Service

The service menu can only be accessed by Bender Service staff.

10.1 7.0 Info

The ISOMETER®'s current settings can be viewed in the Info menu. Navigate through the different views using the and buttons:

•Device

•Software

•Measurement technique

•EDS

•Clock

•Ethernet

•BS bus

Device name, serial number, article number

Software version measurement technique, software version HMI

Selected profile, selected system type

Locating current injector (PGH), locating current, Insulation fault location mode

Time, date, summer time

IP address, DHCP status, MAC address

BS address of the device

•off

Password query inactive

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SettingsSettings

10.2 Factory settings

Parameter Value

Response values/alarms

Response value R

DC alarm off

DC-offset voltage for DC alarm 65 V

Fault memory off

Coupling monitoring on

Time response

Start-up delay T

Digital inputs

Digital input 1

Mode (Operating mode) Active high

Funct ion Test

Digital input 2

Mode (Operating mode) Active low

Funct ion Reset

Digital input 3

Mode (Operating mode) Active high

Function Deactivate device

an1

an2

start-up

(ALARM 1)

(ALARM 2)

40 kΩ

10 kΩ

≤ 0 s

Parameter Value

Interfaces

DHCP off

IP address 192.168.0.5

Net mask 255.255.255.0

BCOM address system-1-0

Device address BS bus 1

Switching elements

Relay 1

Tes t o n

Operating mode N/C operation

Function 1 Ins. alarm 1

Function 2 Connection fault

Function 3 off

Relay 2

Tes t o n

Operating mode N/C operation

Function 1 Ins. alarm 2

Function 2 Device fault

Function 3 Connection fault

EDS

Digital outputs

Digital output 1

Function 1 Common alarm EDS

Function 2 off

Function 3 off

Mode auto

Current 10 mA

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11. Device communication

Device communication

11.1 Ethernet interface

The Ethernet interface can be used for communication with Modbus, web server and BCOM.

11.2 BCOM

BCOM is intended for communication between Bender devices via Ethernet. All devices that communicate via BCOM must have the same system name. Devices can

be organised in subsystems. Each device requires an individual device address. For more information regarding BCOM, refer to the BCOM manual (D00256)

at http://www.bender.de/manuals.

When address 0 has been set for communication via BCOM the device can be accessed via the network (e.g. for parameter setting, etc.) but it cannot communicate with other devices.

11.3 Modbus TCP

Modbus is an international widely used protocol for data transfer between devices.

All measured values, messages and parameters are stored in virtual register addresses. Data can be read out with a read command on the register address. With a write command, data can be written into a register address. The register addresses of the individual measured values und parameters can be found in the manual "iso685-D Annex A" with the title "ISOMETER® iso685 device family - Modbus settings" at http://www.bender.de/manuals.

A maximum of 5 TCP/IP connections can be used simultaneously.

In order to be able to parameterise the device externally via Modbus, the menu item "Allow" must have been set in the "Write access" menu (see

“Write access” on page 61).

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Device communicationDevice communication

11.4 Web server

The ISOMETER® has an integrated web server which displays ISOMETER® data and data of any associated devices (e.g. EDS) comfortably on every PC via a web browser. The web server can be used to read out measured values and parameterise the ISOMETER®s and the EDS.

The web server offers the following functions:

• Visualisation

• Indication of device information (e.g. device type, software version, etc.)

• Indication of current device settings.

• Indication of alarm messages.

• Indication of the Modbus information of the individual parameters.

• Indication of the interfaces in use.

• Overview of the current measured values.

• Detailed graphic representation of the insulation resistance (isoGraph).

• Fast and simple visualisation without any programming.

• Parameter setting

• Easy and fast parameter setting of the device and the connected EDS.

• Easy assignment and edition options of device and measuring channel texts.

• Maintenance

• Data storage of specific events for fast support by Bender Service.

The write access is deactivated by default in the device menu (= Deny). To be able to set parameters via the web server the write access must first be activated in the device menu (= Allow) (see “Write access” on page 61).

Use the web server preferably with the following web browsers: Google Chrome, Mozilla Firefox or Internet Explorer.

If you deactivate EDS channels via the web server, no settings can be made simultaneously on the EDS channels. The settings of deactivated channels cannot be changed.

Web server device menu (first level)

A maximum of 5 TCP/IP connections can be used simultaneously.

Only one device may access the web server at the same time. If several devices try to access the web server it may result in timeouts.

Legend for web server device menu (first level)

1 START Indication of general device information.

2DEVICE

3 ALARMS Indication of alarm messages.

PARAMETER ADDRESSES

Indication of an overview of alarm values and measured values. Indication of the settings. Settings can be changed here.

Activate and deactivate the indication of the Modbus information by selecting or deselecting the selection box for the question "Display additional Modbus information for each parameter?".

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Device communication

Web server user interface

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Legend for user interface

Main menu of the web server (first level)

•START (1)

6Menu

7Info

10 i symbol

System OK/ alarms

Alarm/ meas.values

•DEVICE (2)

• ALARMS (3)

• PARAMETER ADDRESSES (4) Refer to “Web server device menu (first level)” on page 65.

ISOMETER® and EDS settings. Adjust device settings here.

• Indication of device information regarding software, measurement

• Indication of Modbus information for the individual parameters.

Indication of the system status "System OK" (green button) and "Alarms" (red button). If there are pending alarms, click on the red button or go to menu point "ALARMS" (3) to obtain further information.

Overview of alarm values and measured values.

Click on the "i" symbol on the right side to obtain further information regarding measured values.

Device communicationDevice communication

technique, Ethernet and BS bus address.

To be able to see this information, the selection box at PARAMETER ADDRESSES (4) for the question "Display additional Modbus information for each parameter?" must be activated.

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Device communicationDevice communication

CAUTION

11.5 BS bus

The BS bus is used to extend Bender measuring devices (e.g. ISOMETER®) with Bender sensor devices (e.g. EDS). It is an RS-485 interface with a specially developed protocol for Bender devices. On the BS bus, the transmission of alarm messages takes priority over the transmission of all other messages. For further information, refer to the BS bus manual (document number: D00278) at

When connecting more than ten EDS44…-L to the BS bus, the wiring must be shockproof.

When using interface converters, a galvanic separation is required.

The compatibility of the BS bus and the BMS bus is restricted!

An ISOMETER® can administer a maximum of 255 EDS channels. Therefore, if an EDS has 12 channels, a maximum of 21 EDS devices can be connected via BS bus and BB bus (max. 2).

Master-slave principle

The BS bus works according to the master-slave principle. This means that the measuring device operates as the MASTER, while all sensor devices operate as SLAVES. The master is responsible for the communication that is necessary for the measuring function. The master also provides the required bus bias voltage for the operation of the BS bus. The measuring device on the BS bus is the master and has address 1. All sensor devices connected to the BS bus require unique addresses.

www.bender.de/manuals

RS-485 specifications/cables

The RS-485 specification restricts the cable length to 1200 m connection. The number of devices on the BS bus is only limited by the BS bus master. Use twisted pair, shielded cables for bus cabling. For example, cable type J-Y(St)Y n x 2 x 0.8 is suitable. The shield must have a single-ended connection to earth. The BS bus must be terminated at both ends with terminating resistors (120 Ω, 0.25 W). The terminating resistors are connected in parallel to the terminals A and B. Some devices feature integrated terminating resistors and can be activated or deactivated via the "R" button.

Cable routing

The optimum cable routing for the BS bus is a double-terminated bus topology. The length of the branch line is limited to 1 m. These branch lines do not have to be terminated.

Bus topology examples:

Termination

AMaster

B Slave Terminating resistor deactivated via switch on device (OFF)

CSlave

Terminating resistor activated via switch on device (ON) or external terminating resistor between terminals A and B

Only the first and last device in one line may be terminated. Therefore, check all devices.

and requires a daisy chain

Addresses and address ranges on the BS bus

Address 1 is assigned to the master. All sensor devices receive unique addresses starting with address 2, assigned in consecutive order without gaps. In the event of a device failure, a maximum gap of 5 addresses is permissible.

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12. Insulation fault location

Insulation fault location

12.1 General description

An additional function of the ISOMETER® in combination with the EDS is the selective insulation fault location. The insulation faults detected in the IT system by the ISOMETER® can be located by means of an EDS and a measuring current transformer. For further information regarding the function principle of the insulation fault location, refer to 3.4 “Insulation fault location” on page 13.

12.2 Required settings for insulation fault location

Connecting and commissioning the system consisting of ISOMETER® and EDS correctly.

For further information regarding the connection of the EDS, refer to 6.11 “Connecting

the EDS to the ISOMETER®” from page 26, at “Commissioning flow chart” on page 32 and

to the corresponding manual of the EDS.

Setting locating current and EDS mode.

These settings can be made either during initial commissioning (see 7.2 “Initial commissioning” from page 33) or in the device menu of the ISOMETER® (see 10.1 2.0 “EDS (insulation fault location)” from page 51). For further information regarding the locating current for insulation fault location, refer to 10.1 2.1.1 “Current” on page 51. For further information regarding EDS modes, refer to 10.1 2.1.2 “Mode” on page 52.

12.4 Starting and stopping the insulation fault location

The insulation fault location can be started and stopped via different interfaces:

• Shortcut button "EDS" Manually starts/stops the insulation fault location, which runs continuously. If the device is started continuously, it measures until it is manually stopped via the shortcut button (see “Display elements and device buttons” on page 18).

• Device menu

• Modbus

• Web server

• Digital input

For further information regarding start and stop conditions of the insulation fault location, refer to 10.1 2.1.2 “Mode” on page 52.

12.3 Indication on the display

The active insulation fault location is indicated on the display of the ISOMETER®. For further information, refer to 8.7 “Insulation fault location” from page 39.

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13.

IT-System 1 IT-System 2

Adr.3Adr.3

Adr.1 Adr.1

I LI

ISOSCAN®

EDS440

TEST

MUTE

RESET

ALARM

COM

SERVICE

CHANNELS

SLAVE ADDRESS

11109

1 2 3456

∆

I LI

ISOSCAN®

EDS440

TEST

MUTE

RESET

ALARM

COM

SERVICE

CHANNELS

SLAVE ADDRESS

11109

1 2 3456

∆

Special functions for coupled IT systems

13.1 Particularities when monitoring coupled IT systems

When using ISOMETER®s in IT systems, make sure that only one active ISOMETER® is connected in each interconnected system. If several ISOMETER®s are to be connected to the IT system, ensure that only one ISOMETER® is active in the IT system via system isolation using the digital input or Ethernet (ISOnet function).

If IT systems are interconnected via coupling switches, make sure that ISOMETER®s not currently used are disconnected from the IT system and deactivated. IT systems coupled via diodes or capacitances may also influence the insulation monitoring process so that a central control of the different ISOMETER®s is required.

13.2 System isolation via digital input with two coupled systems

Special functions for coupled IT systems

In order to deactivate the ISOMETER® via one of the digital inputs, the coupling switch must have a free contact.

If IT systems are interconnected via coupling switches, one ISOMETER® always remains inactive. Insulation fault location in the IT system of the inactive ISOMETER® is only possible when the associated EDS are in auto mode (see “Setting EDS mode” on page 33). In addition, insulation fault location with a portable EDS must be activated for the active ISOMETER® (setting: Use portable EDS = on, see “Using a portable EDS” on page 52).

Via the X1 connector, the ISOMETER® can be isolated from the IT system and the measuring functions can be deactivated. Therefore, the function of the digital input in use has to be set to "Device inactive". If the digital input used for this function is selected, the connectors L1/+, L2, L3/- are deactivated via internal system isolating switches, the measuring function stops and the following message appears on the display: "Device inactive. Device separated". Stored fault messages are reset when the cause of the fault has been eliminated (Reset function). If the digital input is no longer selected, first the connection to the IT system is restored and afterwards, an entirely new measuring cycle for the insulation monitoring starts. This function can be used to disconnect the second ISOMETER® selectively in coupled IT systems via the auxiliary contact of the coupling switch.

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13.3 System isolation via ISOnet

CAUTION

IT-System 1 IT-System 2

Adr.3

Adr.1

BCOM

Adr.1

BCOM

Adr.2

BS-BusBS-Bus

Adr.1

Adr.3

I LI

ISOSCAN®

EDS440

TEST

MUTE

RESET

ALARM

COM

SERVICE

CHANNELS

SLAVE ADDRESS

11109

1 2 3456

∆

I LI

ISOSCAN®

EDS440

TEST

MUTE

RESET

ALARM

COM

SERVICE

CHANNELS

SLAVE ADDRESS

11109

1 2 3456

∆

The ISOnet function ensures via an Ethernet connection that only one ISOMETER® of the interconnection is active when several ISOMETER®s are connected to an IT system.

For several ISOMETER®s to be able to measure in the same ISOnet interconnection, the settings for the BCOM system name and the BCOM subsystem have to be the same. Only the device address has to be different. If this is not taken into account, the ISOnet function will not work.

If the ISOnet function is deactivated in an ISOMETER® in an ISOnet interconnection, it will measure continuously and will not forward measuring commands to the next device in the interconnection.

In comparison to a solution with coupling switches and function input, the response time will be extended because the measurement in the IT system is not carried out continuously.

The addresses of the ISOMETER®s in the ISOnet interconnection can be selected at will. The addresses do not have to be subsequent but they have to differ from each other.

Special functions for coupled IT systemsSpecial functions for coupled IT systems

Maximum number of devices in an ISOnet interconnection: 20 devices

If in addition to the ISOnet interconnection the digital inputs are wired and a device is deactivated via a digital input, the device will forward the measuring authorisation until the signal at the digital input disappears.

Afterwards, it participates again in the measuring interconnection.

The IP address of the standard gateway must suit the subnet mask, so that the ISOnet function can operate correctly.

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For the ISOnet function, the following settings are made in the menu: Alarm settings ->

IT-System 1 IT-System 2

IT-System 3IT-System 4

Ethernet

SWITCH

BCOM

Adr.1

BCOM

Adr.2

BCOM

Adr.3

BCOM

Adr.4

BS-Bus

Adr.1

Adr.3

BS-Bus

Adr.1

Adr.3

BS-Bus

Adr.1

Adr.3

BS-Bus

Adr.1

Adr.3

I LI

ISOSCAN®

EDS440

TEST

MUTE

RESET

ALARM

COM

SERVICE

CHANNELS

SLAVE ADDRESS

11109

1 2 3456

∆

I LI

ISOSCAN®

EDS440

TEST

MUTE

RESET

ALARM

COM

SERVICE

CHANNELS

SLAVE ADDRESS

11109

1 2 3456

∆

I LI

ISOSCAN®

EDS440

TEST

MUTE

RESET

ALARM

COM

SERVICE

CHANNELS

SLAVE ADDRESS

11109

1 2 3456

∆

I LI

ISOSCAN®

EDS440

TEST

MUTE

RESET

ALARM

COM

SERVICE

CHANNELS

SLAVE ADDRESS

11109

1 2 3456

∆

ISONet -> ISONet = BCOM. The ISOnet function of all ISOMETER®s existing in the system has to be activated and the number of devices has to be determined. Also the parameters of the Ethernet (DHCP on or IP address, subnet mask and default gateway) and BCOM have to be set so that the devices in the ISOnet interconnection can communicate with each other.

After starting the system, the devices initialise. The initialisation phase ends when the configured number of devices has been reached. Then, the device starts with a measuring cycle at the lowest address. When an ISOMETER® has finished one measuring cycle, the authorisation for insulation measurement is forwarded to the ISOMETER® with the next higher address. While one ISOMETER® is measuring, all other ISOMETER®s are separated from the system via internal system isolation switches. By limiting to one subsystem it is possible to have several ISOnet interconnections running in one system.

If a single device fails, the remaining ISOMETER®s continue the ISOnet operation. For the failure of one device, two scenarios are possible:

• A device fails during the measuring procedure. After timeout, another device takes over the measuring function. In this way, all devices monitor each other.

• The device fails in the inactive mode. When forwarding the measuring authorisation, the device is skipped and the next device carries out the measurement.

If a device that has failed before returns, it is taken into the interconnection again and will have its turn during the next run.

Special functions for coupled IT systemsSpecial functions for coupled IT systems

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14. Device profiles

Adjustment to different applications can be carried out very easily by selecting a device profile.

Nominal system voltage

Power circuits

Control circuits

Generator AC 0…690 V 50…60 Hz

High capacitance

Inverter > 10 Hz

Inverter < 10 Hz

AC 0…690 V/ DC 0…1000 V

AC 0…230 V/ DC 0…230 V

AC 0…690 V/ DC 0…1000 V

Mains frequency

15…460 Hz

10…460 Hz

1…460 Hz

System leakage capacitance

0…150 µF

0…150

0…5

0…1000

0…20

µF

Measuring voltage

±50 V

±10 V

±50 V

Description

Main circuits without dynamic frequency changes. The universal profile is suitable for all systems primarily with constant mains frequencies and extraneous DC voltages. When using inverters and dynamic frequency control, select Inverter > 10 Hz or Inverter < 10 Hz.

This profile is used to reduce the measurement voltage to ±10 V in control systems with lower nominal voltages in order to reduce the impact by the ISOMETER® on sensitive switching elements.

This profile allows the realisation of a very fast measuring time, e.g. as required for generator monitoring. Furthermore, this profile can be used to support fast fault location in an IT system. The generator profile is suitable for AC systems containing DC components.

For systems with high leakage capacitances, e.g. ship applications, the impact of leakage capacitances on the measuring result can be significantly reduced by selecting this profile.

This profile is used for systems with dynamic frequency control by inverters in the range 10 to 460 Hz in order to optimise the measurement with respect to the measuring time and quality.

For systems involving extremely low-frequency control in the range of up to

1...460 Hz and very low and continuously changing extraneous DC voltages due to dynamic load conditions in an IT system, continuous insulation monitoring can be optimised using this profile.

Response times see “Diagrams” on page 74.

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15. Diagrams

Ce ≤ 150 µF

≤ 50 µF

≤ 20 µF

≤ 5 µF

≤ 1 µF

Response time as a function of the response value (Ran) and system leakage capacitance (C

) according to IEC 61557-8 (Un = AC 690 V, fn = 50 Hz)

100

100001000100101

Response time [sec]

Response value R

[kΩ]

Ce ≤ 150 µF

≤ 50 µF

≤ 20 µF

≤ 5 µF

≤ 1 µF

Response time as a function of the response value (Ran) and system leakage capacitance (C

) according to IEC 61557-8 (Un = AC 230 V, fn = 50 Hz)

100

100001000100101

Response time [sec]

Response value R

[kΩ]

15.1 Response time profile power circuits

15.2 Response time profile control circuits

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Diagrams

Ce ≤ 5 µF

≤ 1 µF

Response time as a function of the response value (Ran) and system leakage capacitance (C

) according to IEC 61557-8 (Un = AC 690 V, fn = 50 Hz)

0,1

100001000100101

Response time [sec]

Response value R

[kΩ]

Ce ≤ 1000 µF

≤ 500 µF

≤ 150 µF

≤ 50 µF

≤ 20 µF

Ce ≤ 5 µF

Ce ≤ 1 µF

Response time as a function of the response value (Ran) and system leakage capacitance (C

) according to IEC 61557-8 (Un = AC 690 V, fn = 50 Hz)

100

1000

100001000100101

Response time [sec]

Response value R

[kΩ]

15.3 Response time profile generator

15.4 Response time profile high capacitance

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Diagrams

Ce ≤ 20 µF

≤ 5 µF

≤ 1 µF

Response time as a function of the response value (Ran) and system leakage capacitance (C

) according to IEC 61557-8 (Un = AC 690 V, fn = 50 Hz)

100

100001000100101

Response time [sec]

Response value R

[kΩ]

Response time as a function of the response value (Ran) and system leakage capacitance (C

) according to IEC 61557-8 (Un = AC 690 V, fn = 50 Hz)

100

100001000100101

Response time [sec]

Response value R

[kΩ]

Ce ≤ 20 µF

≤ 5 µF

≤ 1 µF

15.5 Response time profile inverter > 10 Hz

15.6 Response time profile inverter < 10 Hz

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Diagrams

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

0000010000100010111,0

100

















 (U

=AC 690V, f

=60Hz)

Operating uncertainty [%]

Ce ≤ 1000 µF

Ce ≤ 1 µF

15.7 Relative uncertainty

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16. Alarm messages

16.1 Alarm messages of the ISOMETER®

Alarm message Description Measures Reference LED indicators

Insulation fault

Check L1-L2-L3 for correct connection!

Check E-KE connections for interruptions!

Service mode active! The device is in maintenance condition • Contact Bender Service SERVICE lights up

The profile does not suit the application!

No DHCP server found! Connection problem at the Ethernet interface

Check time and date! Time and date have not been set yet

An insulation fault exists. The insulation resistance falls below the response value R

No low-resistance connection between the line conductors

No low-resistance connection between terminals E and KE to earth (PE)

Wrong profile selected for this application

an1

an2

• Observe insulation resistance in the monitored system and, if necessary, eliminate fault.

• Reset fault message by pressing the reset button

• If necessary, locate insulation fault using the EDS

• Eliminate insulation fault in the system being monitored

• Reset fault message by pressing the reset button

• Check the wiring of terminals L1/+, L2 and L3/- to the IT system

• Press the test button

• Check mains voltage

•Check fuses

• Check set system type

• Check the wiring of terminals E and KE to earth (PE)

• Press the test button

• Check measured system capacitance or mains frequency in the Info menu

• Select another profile taking into consideration the characteristics

• Check cable connection at the Ethernet interface

• Check the DHCP server's availability

• Check the DHCP's interface configuration in the device

• Set local time and date (in case of voltage failure a buffer for three days)

“Function description” on page 12

“Connection” on page 20

& menu setting

“System type” on page 45

“Connection” on page 20

“Device profiles” on page 73 & “Profile” on page 45

“DHCP” on page 61

“Clock” on page 60

ALARM 1 lights

ALARM 2 lights

ALARM 1 + ALARM 2 flash alternately

ALARM 1 + ALARM 2 flash in common mode

Load on X1 too high! Sum of the external loads on X1 is too high

Device error x.xx Internal device fault

The configured number of devices does not match the

Num.ISOnet devices

number of devices that are actually included in the ISOnet interconnection.

• Check load at X1.+, X1.Q1 and X1.Q2

• Check ambient temperature

• Press the TEST button

• Switch the supply voltage off and on

•Contact Bender Service

•Check settings

• Check Ethernet connection

SERVICE lights up

“System isolation via ISOnet” on page 71

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Alarm messages

Alarm message Description Measures Reference LED indicators

Failure address

Disturbance ISOnet

Start search for EDS channels now?

Malfunction overcurrent

Overtemperature PGH

DC offset voltage There is a DC offset voltage in the system. • Check insulation fault and eliminate fault of DC components.

One device of the ISOnet interconnection is not accessible

General fault at ISOnet, which is not covered by "Num.ISOnet devices" and "Failure address". For example, sending messages can fail or another device cannot process a message.

A device on the BS bus has failed or cannot be detected. The ISOMETER® searches automatically for channels.

The locating current for the insulation fault location is higher than the set limit value. The insulation fault location is aborted and the insulation resistance measurement is continued even if an insulation fault is still active. The insulation fault location is only restarted when the alarm message has been reset and there still exists an insulation fault.

The locating current injector in the ISOMETER® has heated up. The ISOMETER® stops the locating current injector until it cools down and then restarts it.

• Check Ethernet connection

• Check device function

• Check Ethernet connection

• Check device function

• Test wiring of terminals A, B to X1 of all devices

• Start search for EDS channels now

• Reset fault message by pressing the RESET button

• If the fault does not disappear after pressing the RESET button, the device is defective. In this case, contact Bender Service.

• If necessary, reduce the maximum locating current

• Contact Bender Service if the fault does not disappear or occurs more frequently

“System isolation via ISOnet” on page 71

“BS bus” on page 68

and “Scanning channels” on page 52

“Current” on page 51

“Setting EDS current” on page 34

“DC alarm” on page 44

Undervoltage Operating outside the specified supply voltage range • Check supply voltage

Overvoltage Operating outside the specified supply voltage range • Check supply voltage

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Alarm messages

16.2 Alarm messages of the EDS

Alarm message Description Measures Reference LED indicators

Interferences during insulation fault location Insulation fault location disturbed!

insulation fault x mA

Possible causes:

• Low-frequency residual currents

• External magnetic fields

If an insulation fault is located, the message Insulation

fault 5 mA appears on the display. The level of the locat-

ing current gives information regarding the faulty out-

going circuit. The higher the locating current, the lower

the insulation resistance on the detected channel.

• Identify interference sources and eliminate them

• Determine cause of the insulation fault and eliminate it.

Interference CT connection

CT short circuit

Residual current

A measuring current transformer has not been con-

nected correctly or does not work.

Connection fault of CTs

Possible causes:

• Measuring current transformer defective

• Power supply cable short-circuited

The set response value of the residual current has been

exceeded on one channel.

Additionally, read the operating manual of the EDS.

• Check wiring of the measuring current transformers

• Check device function

• Start new search for EDS channels

• Deactivate channel without CT

• Replace defective measuring current transformer

• Check cables

• Determine cause of the exceeded residual current and eliminate fault.

“Scanning channels” on page 52 & “Activating channels” on page 53

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17. Technical data

Technical data

17.1 Tabular data

Insulation coordination according to IEC 60664-1/IEC 60664-3

Definitions:

Measuring circuit (IC1)............................................................................................................................................. (L1/+, L2, L3/-)

Supply circuit (IC2)................................................................................................................................................................... A1, A2

Output circuit 1 (IC3)...........................................................................................................................................................11, 12, 14

Output circuit 2 (IC4)...........................................................................................................................................................21, 22, 24

Control circuit (IC5) .................................................................................................................................... (E, KE), (X1, ETH, X3, X4)

Rated voltage....................................................................................................................................................................................1000 V

Overvoltage category (OVC)..................................................................................................................................................................... III

Rated impulse voltage:

IC1 / (IC2-5) ................................................................................................................................................................................. 8 kV

IC2 / (IC3-5) ................................................................................................................................................................................. 4 kV

IC3 / (IC4-5) ................................................................................................................................................................................. 4 kV

IC4 / IC5 ........................................................................................................................................................................................ 4 kV

Rated insulation voltage:

IC1 / (IC2-5) .............................................................................................................................................................................1000 V

IC2 / (IC3-5) ...............................................................................................................................................................................250 V

IC3 / (IC4-5) ...............................................................................................................................................................................250 V

IC4 / IC5 ......................................................................................................................................................................................250 V

Pollution degree for accessible parts on the outside of the device housing (U Pollution degree for accessible parts on the outside of the device housing (U Protective separation (reinforced insulation) between:

IC1 / (IC2-5) ................................................................................................................................................................OVC III, 1000 V

IC2 / (IC3-5) .................................................................................................................................................................. OVC III, 300 V

IC3 / (IC4-5) .................................................................................................................................................................. OVC III, 300 V

IC4 / IC5 .........................................................................................................................................................................OVC III, 300 V

Voltage test (routine test) according to IEC 61010-1:

IC2 / (IC3-5) ........................................................................................................................................................................ AC 2,2 kV

IC3 / (IC4-5) ........................................................................................................................................................................ AC 2,2 kV

IC4 / IC5 ............................................................................................................................................................................... AC 2,2 kV

Supply voltage

Supply voltage range U Tolerance of U Maximum permissible input current of U Frequency range of U

...............................................................................................................................................AC/DC 24…240 V

..................................................................................................................................................................... -20…+15 %

................................................................................................................................................. DC, 50…400 Hz

.................................................................................................................................... 650 mA

Tolerance of the frequency range of Us................................................................................................................................. -5…+15 %

Power consumption, typically 50 Hz (400 Hz)..................................................................................... ≤ 12 W/21 VA (≤ 12 W/45 VA)

< 690 V)..................................................................... 3

>690 < 1000 V)........................................................ 2

IT system being monitored

Nominal system voltage range U

..................................................................................................................................... AC 0…690 V

............................................................................................................................................................................................. DC 0…1000 V

Tolerance of U Frequency range of U Max. AC voltage U

..................................................................................................................................................................... AC/DC +15 %

....................................................................................................................................................... DC, 1…460 Hz

in the frequency range fn = 1…10 Hz ............................................................................ U

= 110 V/Hz * f

~ max

Response values

Response value R Response value R

(alarm 1) ...........................................................................................................................................1 kΩ…10 MΩ

an1

(alarm 2) ...........................................................................................................................................1 kΩ…10 MΩ

an2

Relative uncertainty (acc. to IEC 61557-8) ............................................................................profile dependent, ±15 %, at least ±1 kΩ

Hysteresis ...................................................................................................................................................................... 25 %, at least 1 kΩ

Time response

Response time t

at RF = 0.5 x Ran (Ran = 10 kΩ) and Ce = 1 μF according to IEC 61557-8.................................................................

................................................................................................................................................. profile dependent, typ. 4 s (see diagrams)

Start-up delay T

............................................................................................................................................................... 0…120 s

start-up

Measuring circuit

Measuring voltage U Measuring current I Internal resistance R Permissible extraneous DC voltage U Permissible system leakage capacitance C

.....................................................................................profile dependent, ±10 V, ±50 V (see profile overview)

...................................................................................................................................................................≤ 403 μA

,Zi............................................................................................................................................................... ≥ 124 kΩ

....................................................................................................................................... ≤ 1200 V

........................................................................................... profile dependent, 0…1000 μF

Measuring circuit for insulation fault location (EDS): Locating current I

........................................................................................................................................... 1/1.8/2.5/5/10/25/50 mA

Measuring ranges

Measuring range f Tolerance measurement of f Voltage range measurement of f Measuring range U

................................................................................................................................................................ 10…460 Hz

............................................................................................................................................. ±1 % ±0.1 Hz

......................................................................................................................................AC 25…690 V

...........................................................................................................................................................AC 25…690 V

Voltage range measurement of U Tolerance measurement of U Measuring range C

................................................................................................................................................................0…1000 μF

Tolerance measurement of C Frequency range measurement of C

Min. insulation resistance measurement of C

..................................................................................................................................... AC/DC > 10 V

.................................................................................................................................................±5 % ±5 V

........................................................................................................................................... ±10 % ±10 μF

.............................................................................................................................. DC, 30…460 Hz

..........................................depending on the profile and coupling mode, typ. > 10 kΩ

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Technical dataTechnical data

Display

Indication ....................................................................................................................... graphic display 127 x 127 pixels, 40 x 40 mm

Display range measured value .........................................................................................................................................0.1 kΩ…20 MΩ

LEDs

ON (operation LED) ............................................................................................................................................................................ green

SERVICE............................................................................................................................................................................................. yellow

ALARM 1 ........................................................................................................................................................................................... yellow

ALARM 2 ........................................................................................................................................................................................... yellow

Digital inputs

Number ...................................................................................................................................................................................................... 3

Operating mode, adjustable................................................................................................................................... active high, active low

Functions ............................................................ off, test, reset, deactivate device, start initial measurement, insulation fault location

Voltage...........................................................................................................................................Low DC -3…5 V, High DC 11…32 V

Cable length X1 ............................................................................................................................................................................... ≤ 1 m

Digital outputs

Operating mode, adjustable.................................................................................................................................................active, passive

Functions .....................................................................................................................................................................................................

off, Ins. alarm 1, Ins. alarm 2, connection fault, DC- alarm, DC+ alarm, symmetrical alarm,

...................................... device fault, common alarm, measurement complete, device inactive, DC offset alarm, common alarm EDS

Voltage............................................................................................................................. passive DC 0…32 V, active DC 0/19.2…32 V

Max. current internal sum X1................................................................................................................................................ max. 200 mA

Max. current external per channel................................................................................................................................................max. 1 A

Cable length X1 ................................................................................................................................................................................ ≤ 1 m

Analogue output

Operating mode................................................................................................................................ linear, midscale point 28 kΩ/120 kΩ

Functions ...........................................................................................................................................................insulation value, DC offset

Current, voltage 0...20 mA (< 600 Ω), 4…20 mA (< 600 Ω), 0…400 μA (< 4 kΩ), 0…10 V (> 1 kΩ), 2…10 V (> 1 kΩ)

Tolerance .........................................................................................................................................................................................±20 %

Interfaces

Field bus:

Interface/protocol.................................................................................................................................... web server/Modbus TCP/BCOM

Data rate........................................................................................................................................................... 10/100 Mbit/s, autodetect

Max. amount Modbus requests .................................................................................................................................................... < 100/s

Cable length ................................................................................................................................................................................. ≤ 100 m

Connection........................................................................................................................................................................................... RJ45

IP address .........................................................................................................................................................DHCP/manual 192.168.0.5

Network mask..................................................................................................................................................................... 255.255.255.0

BCOM address ........................................................................................................................................................................... system-1-0

Function ..............................................................................................................................................................communication interface

ISOnet:

Number ISOnet devices ...................................................................................................................................................................... ≤ 20

Sensor bus:

Interface/protocol ...................................................................................................................................................................... RS-485/BS

....................................................... 9.6 kBaud/s

Data rate.........................................................................................................................

...

Cable length ...............................................................................................................................................................................≤ 1200 m

Cable: twisted pair, one end of shield connected to PE................................................................... recommended: J-Y(St)Y min. 2x0.8

Connection ................................................................................................................................................................. terminals X1.A, X1.B

Terminating resistor at the beginning and at the end of the transmission path..............................120 Ω, can be connected internally

Device address, BS bus .................................................................................................................................................................... 1…90

Switching elements

Number of switching elements.............................................................................................................................. 2 changeover contacts

Operating mode.......................................................................................................................................... N/C operation/N/O operation

Contact 11-12-14 .......................................................................................................................................................................................

off, Ins. alarm 1, Ins. alarm 2, connection fault, DC- alarm, DC+ alarm, symmetrical alarm,

...................................... device fault, common alarm, measurement complete, device inactive, DC offset alarm, common alarm EDS

Contact 21-22-24 .......................................................................................................................................................................................

off, Ins. alarm 1, Ins. alarm 2, connection fault, DC- alarm, DC+ alarm, symmetrical alarm,

...................................... device fault, common alarm, measurement complete, device inactive, DC offset alarm, common alarm EDS

Electrical endurance under rated operating conditions, number of cycles.................................................................................... 10.000

Contact data acc. to IEC 60947-5-1:

Utilisation category................................................................................................................... AC-13 / AC-14 / DC-12 / DC-12 / DC-12

Rated operational voltage .............................................................................................................. 230 V / 230 V / 24 V / 110 V / 220 V

Rated operational current ........................................................................................................................... 5 A / 3 A / 1 A / 0.2 A / 0.1 A

Rated insulation voltage ≤ 2000 m NN ........................................................................................................................................... 250 V

Rated insulation voltage ≤ 3000 m NN ........................................................................................................................................... 160 V

Minimum contact rating ...................................................................................................................................... 1 mA at AC/DC ≥ 10 V

Environment/EMC

EMC ................................................................................................................................................................................. IEC 61326-2-4

Ambient temperatures:

Operating temperature........................................................................................................................................................-25…+55 °C

Transport ..............................................................................................................................................................................-40…+70 °C

Long-term storage...............................................................................................................................................................-40…+70 °C

Classification of climatic conditions acc. to IEC 60721:

Stationary use (IEC 60721-3-3) ....................................................................................3K5 (except condensation and formation of ice)

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Technical dataTechnical data

Transport (IEC 60721-3-2) ...................................................................................................................................... ............................ 2K3

Long-term storage (IEC 60721-3-1) ................................................................................................................................... ................ 1K4

Classification of mechanical conditions acc. to IEC 60721:

Stationary use (IEC 60721-3-3)...........................................................................................................................................................3M4

Transport (IEC 60721-3-2)...................................................................................................................................................................2M2

Long-term storage (IEC 60721-3-1) ...................................................................................................................................................1M3

Area of application ............................................................................................................................................................... ≤ 3000 m NN

Connection

Connection type................................................................................................... pluggable screw-type terminal or push-wire terminal

Screw-type terminals:

Nominal current............................................................................................................................................................................... ≤ 10 A

Tightening torque.......................................................................................................................................... 0.5…0.6 Nm (5…7 lb-in)

Conductor sizes.........................................................................................................................................................................AWG 24-12

Stripping length................................................................................................................................................................................. 7 mm

rigid/flexible ....................................................................................................................................................................... 0.2…2.5 mm²

flexible with ferrules, with/without plastic sleeve..........................................................................................................0.25…2.5 mm²

Multiple conductor, rigid....................................................................................................................................................... 0.2…1 mm²

Multiple conductor, flexible ............................................................................................................................................... 0.2…1.5 mm²

Multiple conductor, flexible with ferrule without plastic sleeve .......................................................................................0.25…1 mm²

Multiple conductor, flexible with TWIN ferrule with plastic sleeve..................................................................................0.5…1.5 mm²

Push-wire terminals:

Nominal current............................................................................................................................................................................... ≤ 10 A

Conductor sizes.........................................................................................................................................................................AWG 24-12

Stripping length............................................................................................................................................................................... 10 mm

rigid/flexible ....................................................................................................................................................................... 0.2…2.5 mm²

flexible with ferrules, with/without plastic sleeve..........................................................................................................0.25…2.5 mm²

Multiple conductor, flexible with TWIN ferrule with plastic sleeve..................................................................................0.5…1.5 mm²

Push-wire terminals X1:

Nominal current................................................................................................................................................................................. ≤ 8 A

Conductor sizes.........................................................................................................................................................................AWG 24-16

Stripping length............................................................................................................................................................................... 10 mm

rigid/flexible ....................................................................................................................................................................... 0.2…1.5 mm²

flexible with ferrule without plastic sleeve...................................................................................................................... 0.25…1.5 mm²

flexible with TWIN ferrule with plastic sleeve .................................................................................

..............................0.25…0.75 mm²

DIN rail mounting acc. to............................................................................................................................................................ IEC 60715

Screw fixing...................................................................................................................................................... 3 x M4 with mounting clip

Enclosure material ............................................................................................................................................................... polycarbonate

Flammability class .................................................................................................................................................................................V-0

ANSI code ............................................................................................................................................................................................... 64

Dimensions (W x H x D)............................................................................................................................................... 108 x 93 x 110 mm

Weight ........................................................................................................................................................................................... < 510 g

Option "W" data different from the standard version

Ambient temperatures:

Operating temperature........................................................................................................................................................-40…+70 °C

Transport ..............................................................................................................................................................................-40…+85 °C

Long-term storage...............................................................................................................................................................-40…+70 °C

Classification of climatic conditions acc. to IEC 60721:

Stationary use (IEC 60721-3-3) ................................................................................. 3K5 (condensation and formation of ice possible)

Classification of mechanical conditions acc. to IEC 60721:

Stationary use (IEC 60721-3-3) ........................................................................................................................................................ 3M7

at a frequency > 200 Hz, the connection of X1 must be insulated. Only permanently installed devices which at least have over-

voltage category CAT2 (300V) may be connected.

Indication limited outside the temperature range -25…+55 °C.

This is a class A product. In a domestic environment, this product may cause radio interference. In this case, the user may be re-

quired to take corrective actions.

17.2 Option W

Devices with the suffix "W“ feature increased shock and vibration resistance. The electronics is covered with a special varnish to provide increased protection against mechanical stress and moisture.

Combination of ISOMETER® sensor variant with FP200: The requirements of Option "W" will only be fulfilled when the ISOMETER® sensor variant is mounted on DIN rail and connected to the FP200 via the patch cable. Refer also to the quick-start guide FP200 (Document number D00169).

Operating mode........................................................................................................................................................ continuous operation

Mounting display oriented, cooling slots must be ventilated vertically

Degree of protection internal components ......................................................................................................................................... IP40

Degree of protection terminals ........................................................................................................................................................... IP20

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Technical dataTechnical data

17.3 Standards and certifications

The ISOMETER® has been developed in compliance with the following standards:

• DIN EN 61557-8 (VDE 0413-8)

• IEC 61557-8

• DIN EN 61557-9 (VDE 0413-9)

• IEC 61557-9

17.4 Ordering details

Type

iso685-D-P

iso685W-D-P*

Combination iso685-S-P + FP200

Supply voltage U

AC 24…240 V; 50…400 Hz DC 24…240 V

Art. No.

B91067030

B91067030W

B91067230

Insulation fault locators

Typ e

EDS440-S-1 AC/DC 24…240V 2…10mA B 9108 0201

EDS440W-S-1 AC/DC 24…240V 2…10mA B 9108 0201W

EDS440-L-4 AC/DC 24…240V 2…10mA B 9108 0202

EDS440W-L-4 AC/DC 24…240V 2…10mA B 9108 0202W

EDS441-S-1 AC/DC 24…240V 0,2…1mA B 9108 0204

EDS441W-S-1 AC/DC 24…240V 0,2…1mA B 9108 0204W

EDS441-L-4 AC/DC 24…240V 0,2…1mA B 9108 0205

EDS441W-L-4 AC/DC 24…240V 0,2…1mA B 9108 0205W

EDS441-LAB-4 AC/DC 24…240V 0,2…1mA B 9108 0207

EDS441W-LAB-4 AC/DC 24…240V 0,2…1mA B 9108 0207W

Supply voltage U

Response value Art. no.

Combination iso685W-S-P + FP200W*

AC 24…240 V; 50…400 Hz DC 24…240 V

B91067230W

* Option W: Increased shock and vibration resistance 3K5, 3M7; -40…+70 °C

* Absolute values

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Accessories

Description Art. No.

Technical dataTechnical data

iso685 mechanical accessories comprising: terminal cover and 2 mounting clips*

iso685 plug kit, screw terminals* B91067901

iso685 plug kit, with push-wire terminals B91067902

Front cover 144x72 transparent (for IP65) B 98060005

BB bus 6TE connector B98110001

B91067903

* included in the scope of delivery

Suitable system components

Description Type Art. No.

Suitable measuring instruments SKMP**: 28 kΩ,120 kΩ

Current values: 0…400 µA, 0…20 mA (for more information, click here)

Display for front panel mounting

7204-1421 B986763

9604-1421 B986764

9620-1421 B986841

FP200 B91067904

FP200W B91067904W

iso685-S-P (only in combination with FP200)

iso685W-S-P* (only in combination with FP200)

Supply voltage:

AC 24…240 V; 50…400 Hz

DC 24…240 V

Supply voltage:

AC 24…240 V; 50…400 Hz

DC 24…240 V

B91067130

B91067130W

* Option W: Increased shock and vibration resistance 3K5, 3M7; -40…+70 °C

SKMP = midscale point

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18. Glossary

• BB bus

• BCOM Protocol for communication between Bender devices via an IP-based network.

• BS bus The Bender sensor bus is an interface which enables Bender devices to communicate with each other (RS-485 interface).

• DHCP Dynamic Host Configuration Protocol. It is used to assign the network configuration to Clients via a server.

• EDS Insulation fault locator for fault location in an IT system.

• EDS button

•EDS mode

•ISOnet

• Modbus TCP Modbus is an international widely spread protocol for data transfer.

•PGH

• "PGH ON" LED The "PGH ON" LED flashes during insulation fault location. It indicates that the locating current for the insulation fault location is generated.

• System (BCOM)

The BB bus is an interface which enables Bender devices to communicate with each other (Bender-internal device bus). The BB bus can be used with an ISOMETER® and one or more EDS44…-S.

The shortcut button "EDS" manually starts the insulation fault location, which runs continuously until the button is pressed again, which stops the process immediately. (refer also to “Display elements and device buttons” on page 18).

The insulation fault location can be carried out in three different modes. Depending on the mode, the insulation fault location starts and stops due to different conditions (see also “Mode” on page 52).

Only one ISOMETER® may exist in an isolated system. If several networks monitored by an ISOMETER® are coupled, this function ensures via an Ethernet connection that only one ISOMETER® is actively measuring.

PGH stands for locating current injector. The locating current injector generates a periodic locating current for insulation fault location. This locating current is detected by the measuring current transformers connected to the EDS and evaluated by the EDS.

The system is the entire installation that is visible for the customer and defined by the customer. The BCOM communication takes place within this system. Naturally, different systems can exist independently in one network.

• Subsystem (BCOM)

• Web server A web server presents the device functions graphically. The web server can be used for reading out measured values and for parameter setting.

The subsystem structures parts of the system as units defined by the customer, e.g. all PQ devices. A typical subsystem are also "non BCOM-capable" devices that are hidden behind a proxy.

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Index

Accessories 85 Alarm

Alarm 1 13 Alarm 2 13 Reset alarm message 59 Settings 44

BB bus 26, 86 BCOM 64, 86 BS bus 68, 86 Button

DATA 18 EDS 18 ESC 18 Info 18 MENU 18 OK 18 RESET 18 TEST 18

Buttons 18

Characteristic curves 74 Commissioning 32

Commissioning wizard 32, 33 Initial commissioning 32

Recommissioning 33 Communication interfaces 64 Compatibility 14 Connection

3(N)AC system 22

AC system 22

BB bus 26

Connection requirements 20 Connectors 17 DC system 23 Ethernet interface 24 Relay 1 interface (11 12 14) 25 Relay 2 interface (21 22 24) 25 Supply voltage 24

X1 interface 23 Control circuits 73 Coupled IT systems 70 Coupling monitoring 45

Date 33, 60

Setting the date 33, 60 Device buttons 18 Device profiles 33, 45 DHCP 61, 86 Diagrams 74 Dimensions 15 Display 18, 36

Data - isoGraph 38

Fault display (active) 36

Fault display (inactive) 37

Fault memory 38

History memory 39

Initial measurement 40

Insulation fault location 39

Limit values for R(an) 36

Measuring pulse 39

Signal quality of the measurement 36

Standard display 36 Display elements 18

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Index Index

EDS 86

Device settings 56 Inputs 56 Outputs 54

Ethernet interface 24

Function description

Insulation fault location 13 ISOMETER 11, 12 ISOnet 71

Glossary 86

Hazards when handling the device 10 History memory 39

Initial measurement 40, 59 Inputs

EDS 56 Inputs ISOMETER 46 Insulation fault location 13, 69

EDS button 18

PGH ON LED 18

Response value I∆L 54

Response value I∆n 54

Test current 51 Insulation resistance

Activate/deactivate measurement 45 Intended use 10 Interfaces 60

BB bus 26

BCOM 61, 64 BS bus 68 Ethernet 61, 64 Modbus TCP 61 Modbus/TCP 64 Web server 65 X1 23

ISOnet 71, 86

LEDs 18

ALARM 1 18 ALARM 2 18 ON 18 PGH ON 18, 86 SERVICE 18

Mains frequency 73 Mains voltage 11 Measured values 59

View measured values 59 Measuring pulse 39 Menu 41 Minimum current rectifier 21 Minimum distance 20 Modbus TCP 86 Modbus/TCP 64 Mounting

DIN rail mounting 20

Screw mounting 19

Nominal system voltage 73, 81 Nominal voltage 20

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Index Index

Normal operation 36

Operating controls 18 Operating mode 46 Operation

Commissioning 21, 32

Commissioning EDS 35 Option W 83 Ordering information 84 Outputs

EDS 54

ISOMETER 47

Password 62 PGH 86 Product description 12 Profiles

Description 73

Overview 73

Set profile 33, 45 Protective earth conductor (PE) 20

Safety instructions 8 Self test 14 Service menu 59, 62 Set language 33, 59 Set system type of the system to be monitored 33 Setting the time 33, 60 Settings 44

Basic settings 59 Signal quality of the measurement 36 Start-up delay 45 System leakage capacitance 11, 73

Technical data 81 Test

Manual test 59

Self test 14

W (W option) 83 Warranty 11 Web server 65, 86

Response time

Profile control circuits 74 Profile generator 75 Profile high capacitance 75 Profile inverter 10 Hz 76 Profile power circuits 74 Relative uncertainty 77

Response value 11, 81

I∆L 54 Set Ran1, Ran2 34

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Bender GmbH & Co. KG

Postbox 1161 • 35301 Gruenberg • Germany Londorfer Straße 65 • 35305 Gruenberg • Germany

Customer service

Service hotline: 0700-BenderHelp (Telephone und Fax) Carl-Benz-Straße 8 • 35305 Gruenberg • Germany

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

E-Mail: [email protected] Web: www.bender.de

Tel.: +49 6401 807-760 Fax: +49 6401 807-629

E-Mail: [email protected] Web: http://www.bender.de

BENDER Group

Photos: Bender archive.