Bender iso685W-D-B, iso685-D, iso685W-D, iso685-S, iso685W-S User Manual

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Manual

ISOMETER®

iso685-D-B

iso685W-D-B iso685-S-B

iso685W-S-B

Insulation Monitoring Device for IT AC systems with galvanically connected rectifiers and inverters and for IT DC systems

iso685-D-B_D00177_05_M_XXEN/07.2017

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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 .................................................................... 6

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

1.2 Technical support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2.1 First level support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2.2 Repair service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2.3 Field service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.3 Training courses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.4 Delivery conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.5 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.6 Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2. Safety instructions ............................................................................ 8

2.1 General safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 Work activities on electrical installations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Device-specific safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.4 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3. Function ........................................................................................... 10

3.1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.2 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.2.1 General product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.2.2 Special characteristics of ISOMETER® iso685-S-B with front panel 10

3.3 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.4 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.5 Self test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5.1 General instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

5.2 Screw mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.3 DIN rail mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6. Connection ....................................................................................... 17

6.1 Connection requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

6.2 Connection to a 3(N)AC system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

6.3 Connection to an AC system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

6.4 Connection to a DC system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

6.5 Connection to the X1 interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

6.6 Connection to the supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

6.7 Connection to the Ethernet interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

6.8 Connection to the relay 1 interface (11 12 14) . . . . . . . . . . . . . . . . . . . . . . 22

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

7. Commissioning ............................................................................... 23

7.1 General initial commissioning process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

7.2 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

7.2.1 Set language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

7.2.2 Set time and date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

7.2.3 Set system type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

7.2.4 Set profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

7.2.5 Set response value Ran1 for Alarm 1 . . . . . . . . . . . . . . . . . . . . . . . . . . .25

7.2.6 Set response value Ran2 for Alarm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . .25

7.3 Recommissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

4. Device overview .............................................................................. 12

4.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2 Device variants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.3 Connections and panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.4 Display elements and device buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5. Mounting .......................................................................................... 16

8. Display ..............................................................................................26

8.1 Standard display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

8.2 Fault display (active) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

8.3 Fault display (inactive) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

8.4 Acknowledge fault memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

8.5 Data-isoGraph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

8.6 History memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

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Table of contentsTable of contents

8.7 Initial measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

8.8 ISOnet mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

9. Menu ................................................................................................. 31

9.1 Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

9.2 Operating and navigating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

9.2.1 Easy operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10. Settings .......................................................................................... 33

10.1 Settings in the device menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (1.0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Alarm settings 33

10.1 (1.1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Insulation alarm 33

10.1 (1.1.1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Alarm 1 33

10.1 (1.1.2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Alarm 2 33

10.1 (1.1.3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Fault memory 33

10.1 (1.2) DC alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (1.2.1) Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (1.2.2) U(DC-E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (1.3) Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (1.4) System type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (1.5) ISOnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (1.5.1) ISOnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (1.5.2) Number of devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (1.6) Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (1.7) T(Start). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (1.8) Coupling monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (1.9) Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (1.9.1) Digital 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (1.9.1.1) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (1.9.1.2) t(on) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (1.9.1.3) t(off) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (1.9.1.4) Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

10.1 (1.9.2) Digital 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

10.1 (1.9.3) Digital 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

10.1 (1.10) Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

10.1 (1.10.1) Relay 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

10.1 (1.10.1.1) TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

10.1 (1.10.1.2) Relay mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

10.1 (1.10.1.3) Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

10.1 (1.10.1.4) Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

10.1 (1.10.1.5) Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

10.1 (1.10.2) Relay 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

10.1 (1.10.3) Digital 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

10.1 (1.10.3.1) TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10.1 (1.10.3.2) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10.1 (1.10.3.3) Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10.1 (1.10.3.4) Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10.1 (1.10.3.5) Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10.1 (1.10.4) Digital 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10.1 (1.10.5) Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10.1 (1.10.5.1) TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10.1 (1.10.5.2) Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10.1 (1.10.5.3) Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10.1 (1.10.5.4) Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10.1 (1.10.6) Analogue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10.1 (1.10.6.1) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

10.1 (1.10.6.2) Midscale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

10.1 (1.10.6.3) TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

10.1 (1.10.6.4) Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

10.1 (2.0) Data measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

10.1 (3.0) Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

10.1 (4.0) History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

10.1 (5.0) Device settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

10.1 (5.1) Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

10.1 (5.2) Clock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

10.1 (5.2.1) Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

10.1 (5.2.2) Format (time). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

10.1 (5.2.3) Summer time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

10.1 (5.2.4) Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

10.1 (5.2.5) Format (date). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

10.1 (5.2.6) NTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

10.1 (5.2.7) NTP server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

10.1 (5.2.8) UTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

10.1 (5.3) Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

10.1 (5.3.1) Write access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.2) Ethernet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.2.1) DHCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.2.2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP 42

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10.1 (5.3.2.3) SN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.2.4) Std. GW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.2.5) DNS server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.2.6) Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.3) BCOM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.3.1) System name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.3.2) Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.3.3) Device address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.3.4) Timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.3.5) TTL for subscription . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.4) Modbus TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

10.1 (5.3.4.1) Port 502 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10.1 (5.3.5) BS bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10.1 (5.3.5.1) Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10.1 (5.4) Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10.1 (5.4.1) Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10.1 (5.5) Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10.1 (5.5.1) Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10.1 (5.5.2) Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10.1 (5.6) Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10.1 (5.7) Data backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10.1 (5.8) Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

10.1 (6.0) Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

11. Device communication ............................................................... 44

11.1 Ethernet interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

11.2 BCOM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

11.3 Modbus TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

11.4 Web server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

11.5 BS bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

14. Diagrams ........................................................................................53

14.1 Response time profile power circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

14.2 Response time profile control circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

14.3 Response time profile generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

14.4 Response time profile high capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . .54

14.5 Response time profile inverter > 10 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

14.6 Response time profile inverter < 10 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

14.7 Response time DC alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

14.8 Relative uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

15. Alarm messages ............................................................................57

16. Factory settings .............................................................................59

17. Technical data ...............................................................................60

17.1 Tabular data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

17.2 Option "W" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

17.3 Standards and certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

17.4 Ordering details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

18. Glossary ..........................................................................................64

Index ...................................................................................................... 65

12. Special functions for coupled IT systems ................................. 49

12.1 Particularities when monitoring coupled IT systems . . . . . . . . . . . . . . . 49

12.2 System isolation via digital input with two coupled systems . . . . . . . 49

12.3 System isolation via ISOnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

13. Device profiles .............................................................................. 52

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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.

This signal word indicates a low level risk that can result in minor or mo- derate injury or damage to property if not avoided.

This symbol denotes information intended to assist the user in making optimum use of the product.

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

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

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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.

1.6 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.

1.5 Storage

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.

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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.

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Prevent measurement errors!

When a monitored IT system contains galvanically coupled DC circuits, an insulation fault can only be detected correctly if the rectifier valves (e.g. rectifier diode, thyristors, IGBTs, frequency inverters, …) carry a minimum current of > 10 mA.

Safety instructionsSafety instructions

2.4 Intended use

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

Unspecified frequency range

When connecting to an IT system with frequency components below the specified frequency range, the response times and response values may differ from the indicated technical data. However, depending on the application and the selected measurement method, continuous insulation monitoring is also possible in this frequency range. There is no influence on the insulation monitoring for IT systems with frequency components above the specified frequency range, e.g. within the range of typical switching frequencies of frequency inverters (2…20 kHz).

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. Due to the separate supply voltage, de-energised systems can also be monitored. The maximum permissible system leakage capacitance is 0…1000 µF, depending on the profile.

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.

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3. Function

Function

3.1 Features

• 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

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

The ISOMETER® iso685-D-B and iso685W-D-B are devices of the iso685 device family with integrated display. This manual applies in full to these ISOMETER®s. The ISOMETER® iso685-S-B and iso685W-S-B are sensor variants of the iso685 device family without display. The only difference between these variants and the ISOMETER®s iso685-D and iso685W-D-B is that they do not feature a display. The ISOMETER®s iso685-S-B and iso685W-S-B 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.

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

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 Functional 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 micro-controlled measuring circuit. The measuring time is dependent on the selected measurement profiles, the system leakage capacitance, the insulation resistance and possible system-related disturbances.

3.2 Product description

3.2.1 General product description

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

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 graphical LC display. The selected settings are stored in a permanent fail-safe memory. Different languages can be selected for the setup menus as well as 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 entering a password. To ensure proper functioning of connection monitoring, the device requires the setting of the system type 3AC, AC or DC and the red use of the appropriate terminals

L1/+, L2, L3/-.

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requi-

Page 11

FunctionFunction

TEST

√ Measurement

Coupling Earth connection Outputs

33 %

The insulation monitoring device 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 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 resp. 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 insulation monitoring device 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.

3.5 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.

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 “Control” on page 40).

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 ured (refer to “Initial measurement” on page 29).

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

“Alarm messages” on page 57). In addition, the respective message will be indicated on

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

Initial measurement

until the first valid value is meas-

3.4 Interfaces

• Communication protocol Modbus TCP

• BCOM for Bender device communication via Ethernet

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

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

√

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.

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4. Device overview

4.1 Dimensions

108 mm

110 mm

mm 39

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Device overview

ISOMETER® iso685-D-B

ISOMETER® iso685-S-B with front panel FP200 connected via an RJ45 cable

4.2 Device variants

iso685-D-B:

iso685-S-B:

Option "W":

This device variant features a high-resolution graphic LC display and operating controls for direct operation of the device functions. It cannot be combined with an FP200.

This device variant 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-B and iso685W-S-B).

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Device overview

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

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

To p

ON Display

RESET

DATA

LEDs: SERVICE, ALARM 1, ALARM 2

MENU ESC

TEST

INFO OK

iso685-D-B

REMOTE

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

iso685-S-B

Back

Front

ETH

X1 Digital interface ETH Ethernet interface R Selectable resistance R 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

4.4 Display elements and device buttons

Display elements

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

The device display shows information regarding the device and the meas-

SERVICE

ALARM 1

ALARM 2

urements. Other information is available in the chapter “Display” from page 26.

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

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

TEST

RESET

Info

DATA

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

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. Fix the ISOMETER® onto the DIN rail until it snaps into place.

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® iso685-D-B is suitable for use in coupled systems. For the necessary parameter setting, refer to “Special functions for coupled IT sys-

tems” from page 49

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-

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!

Position the terminal cover and click it into place

6.5 Connection to the X1 interface

I1 I2 I3

A B

M+

Q2 Q1

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

External Power supply for powering the ISOMETER® via terminal X1 must fulfil immunity and emission standards of the required application. For wiring longer than 1 m the use of a shielded cable is prescribed.

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

Relay 1

Common contact

Normally open (n.o)

Normally closed (n.c)

21 22 24

Relay 2

Common contact

Normally closed (n.c)

Normally open (n.o)

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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7. Commissioning

Commissioning the ISOMETER®

Adjust basic settings if

necessary

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

Run the commissioning

wizard

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

from page 33.

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.

For customer-specific configured devices, the commissioning wizard might be deactivated and cannot be run. In this case, the device is preset.

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.

However, the commissioning wizard can be started as described at

“Recommissioning” on page 25.

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-B_D00177_05_M_XXEN/07.2017

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CommissioningCommissioning

Language 5.6.2

o Deutsch

• English o Espanõl o Français o Norsk

Date 5.6.4

14.08.2016

min. 1 max. 31

Commissioning 5.6

Please set the

current date

and time.

2/10

System type 5.6.6

• DC o AC o 3AC

Commissioning 5.6

Please choose the

type of system

that best suits

your installation.

5/10

Profil e 5.6.8

• 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.

7/10

7.2 Initial commissioning

Check network function!

When the device is 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.

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.

7.2.3 Set 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 adapt the insulation monitoring device optimally 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 52. The profile "power circuits" is suitable for most IT systems.

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CommissioningCommissioning

Alar m 1 5.6.9

40 kΩ

Min. Max. 10MΩ

1kΩ

Commissioning 5.6

Please set

response value

for R(an1) for

Alarm1.

8/10

Alar m 2 5.6.10

10 kΩ

Min. Max. 10MΩ

1kΩ

Commissioning 5.6

Please set

response value

for R(an2) for

Alarm2.

9/10

7.2.5 Set response value R

for Alarm 1

an1

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

7.2.6 Set response value R

for Alarm 2

an2

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

7.3 Recommissioning

If the device has already been put into operation before, the self test will be started shortly after the supply voltage has been connected. Start the commissioning wizard using the menu path:

Menu/Device settings/Commissioning

This menu can be used to modify settings made previously.

Observe the device status!

The device changes from the alarm state to normal state after completing initial commissioning and initial measurement by adhering to the response values set.

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8. Display

IT System

OK 230 kΩ

R(an) 40kΩ/10kΩ

OK 230 kΩ

7 kΩ

Insulation fault

7 kΩ

1/4

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.

an1

=40 kΩ

If the value falls below R additional detailed information regarding the DC shift will be displayed, as illustrated above.

in a DC system or a DC shift is recognised in an AC system,

an1

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8.3 Fault display (inactive)

230 kΩ

IT System

1/4

230 kΩ

Insulation fault

28.03.14 17:0 2

28.03.14 17:18 2/4

7 kΩ7 kΩ

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

This message means that there has been a fault in the past but the device is no longer in fault condition.

DisplayDisplay

If several fault messages occur, navigate through the faults using the and button. In addition to the type of fault and the associated alarm value when the fault has occurred and how long it has been active will be shown.

iso685-D-B_D00177_05_M_XXEN/07.2017

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DisplayDisplay

RESET 3.2

Reset current

messages? All

messages are saved in the

history memory.

Cancel RESET

1,0 ,10 0 ,010 ,001 MΩ

Hour 16:26 16:52

Data-isoGraph 2

1/4

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

Current time scale

8.4 Acknowledge fault memory

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

Next message

Leave view

Fault description Alarm value

Feault occured Fault disappeared Previous message

Number of selected errors/ Tot a l number of error messages

IT System

R(an) 40kΩ/10kΩ

Initial

measurement

Initial

measurement

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

History 4.1

Insulation fault

11kΩ

28.03.14 17:02

28.03.14 17:18 8/8

8.7 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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DisplayDisplay

IT system

ISOnet activeISOnet active

R(an) 40kΩ/10kΩ

230 kΩ230 kΩ

IT system

Automatic testAutomatic test

R(an) 40kΩ/10kΩ

8.8 ISOnet mode

The ISOMETER® displays the message „ISOnet active“, if the ISOMETER® works in the ISOnet mode but does not measure at the moment. The "ON" LED lights continuously and the bar indicating the progress of measurement is not pulsing.

The LED „ON“ blinks and the bar indicating the progress of measurement is pulsing, if the ISOMETER® measures actively in the ISOnet mode.

The ISOMETER® performs an automatic test. During this test, the ISOMETER® checks the connections to the IT system and earth. Afterwards, the ISOMETER® performs an initial measurement and records all measured values (see page 29).

Hereafter, the ISOMETER® measures for one measuring cycle and then forwards the authorisation for insulation measurement to the ISOMETER® with the next higher address.

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9. Menu

1. Alarm settings 1. Insulation alarm 1. Alarm 1

2. Alarm 2

3. Memory

2. DC Alarm 1. Alarm

2. U(DC-E)

3. Profile

4. System type

5. ISOnet 1. ISOnet

2. number of devices

6. Device

7. t(start)

8. Coupling monitoring

9. Inputs 1. Digital 1 1. Mode

2. t(on)

3. t(off)

4. Function

2. Digital 2 1. Mode

2. t(on)

3. t(off)

4. Function

3. Digital 3 1. Mode

2. t(on)

3. t(off)

4. Function

Ausgänge 1. Relais 1 1. Test

2. Relay mode

3. Function 1

4. Function 2

5. Function 3

2. Relais 2 1. Test

2. Relay mode

3. Function 1

4. Function 2

5. Function 3

3. Digital 1 1. Test

2. Relay mode

3. Function 1

4. Function 2

5. Function 3

4. Digital 2 1. Test

2. Relay mode

3. Function 1

4. Function 2

5. Function 3

5. Summer 1. Test

2. Function 1

3. Function 2

4. Function 3

6. Analog 1. Mode

2. Midscale

3. TEST

4. Function

2. Data meas. values

3. Control

4. History

5. Device settings 1. Language

2. Cloc

1. Time

2. Format

3. Summer time

4. Date

5. Format

6. NTP

7. NTP Server

8. UTC

3. Interface 1. Write access

2. Ethernet 1. DHCP

2. IP

3. SN

4. Std. GW

5. DNS Server

6. Domäne

3. BCOM 1. System name

2. Subsystem

3. Device address

4. Timeout

5. TTL

4. Modbus TCP 1. Port 502

5. BS-Bus 1. Address

4. Displa

1. Brightness

5. Passwort 1. Passwort

2. Status

6. Commissioning

7. Data protection

8. Service

6. Info

9.1 Menu structure

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Page 32

9.2 Operating and navigating

Language 5.6.2

o Deutsch

• English o Espanõl o Français o Norsk

Date 5.2.4

14.01.2014

min. 1 max. 31

Ethernet 6.3.2

-.0123456789abcdef ghijklmnopqrstuvwx yz del

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 15.

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.

MenuMenu

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".

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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

illustrated 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

(alarm 2) are

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 (1.1.1) Alarm 1

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

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 34

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 52. 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…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 20)

Single-phase AC system (refer to “Connection to an AC system” on page 19)

3AC system (refer to “Connection to a 3(N)AC system” on page 19)

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 IT system is NOT being monitored!

Device inactive appears on the display. The

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.

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 50.

•on

•off

Coupling monitoring is activated.

Coupling monitoring is deactivated.

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10.1 (1.9) Inputs

I2 I3 A

M+

Q2 Q1

Device inactive

Reset Test

X1 X1

t(on)

Reaction Impulse on

Reaction Impulse o

X1 X1

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.

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:

•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.

Reaction Reaction

< t(on)

t(on)

Impulse onImpulse o

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

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”).

iso685-D-B_D00177_05_M_XXEN/07.2017

Page 36

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

Digital input without function

Device self test

Reset of fault and alarm messages

The device DOES NOT measure the insulation resistance, the message

Device inactive 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

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 mode

The relay mode can be adapted to the application:

•N/C

•N/O

Normally closed- N/C operation contacts11-12-14 / 21-22-24 (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 37

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

when the nominal system 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

when the nominal system voltage is U

an1.

an2.

≥ 50 V.

an1

or R

an2

and

•Device fault

•Common alarm

•Measurement complete

•Device inactive

•DC offset alarm

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

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.

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

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

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Page 38

SettingsSettings

iso685

oder

iso685

internal

external

10.1 (1.10.3.1) TEST

The following parameters can be set for each of the digital outputs: 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 internally applied across the output.

In the passive mode ≤ 32 V are externally connected (see technical data). The output switches the applied potential to ground.

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”.

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”.

Observe the maximum output current!

Maximum output current in case of internal voltage supply via A1/+ and A2/-: 200 mA in total to X1. Also refer to the formula for calculating I

LmaxX1

der “Digital Outputs (Q1, Q2)” on page 61.

10.1 (1.10.5.4) Function 3

Refer to “10.1 (1.10.1.3) Function 1”.

10.1 (1.10.6) Analogue

The following parameters can be set for the analogue output:

in the Technical Data un-

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Page 39

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 (1.10.6.1) 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

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

•28 k

•120 k

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

Upper value Analogue output A

20 mA 20 mA 400 µA 10 V 10 V

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 enti re ra nge. This o nly a ppli es to t he ma nual 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.

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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

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) 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

Displays the insulation resistance and chronological sequence.

See “Data-isoGraph” on page 28.

10.1 (3.0) 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

Manual device test

Reset of fault and alarm messages

All recorded measurements are discarded and a new measurement is started

10.1 (4.0) History

In the history menu, the faults detected by the ISOMETER® are displayed. For a detailed functional description, refer to “History memory” on page 29.

•History

•Delete

Overview of faults that have occurred

Reset the history memory

10.1 (5.0) Device settings

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

10.1 (5.1) Language

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

•Insulation data

•IT system data

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

•German

•English

•...

10.1 (5.2) Clock

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

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SettingsSettings

10.1 (5.2.1) Time

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

10.1 (5.2.2) Format (time)

Select the appropriate time format to be displayed:

•12 h

•24 h

12-hour notation am/pm

24-hour notation

10.1 (5.2.3) 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 (5.2.4) Date

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

10.1 (5.2.5) 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 (5.2.6) NTP

Select if you would like to synchronise the current time via NTP. You have to configure the NTP server in order to use this function (see “NTP server” on page 41

•on

•off

Synchronisation via NTP server is activated.

Synchronisation via NTP server is deactivated.

10.1 (5.2.7) NTP server

Set the IP address of the NTP server.

10.1 (5.2.8) 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 (5.3) 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 (5.3.1) 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 (5.3.2) 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 (5.3.2.1) DHCP

Select whether you want to use automatic address assignment via your DHCP server. When the automatic IP address assignment is activated, the IP address, subnet mask and the standard gateway are assigned automatically. When the automatic IP address assignment is deactivated, you have to make these settings manually in the menu. The IP address can be viewed in the “Info“ menu (see “Info” on page 43).

•on

•off

Activate automatic IP address assignment.

Deactivate automatic IP address assignment.

10.1 (5.3.2.2) IP

Set the appropriate IP address for the ISOMETER®.

10.1 (5.3.2.3) SN

Set the appropriate subnet mask.

10.1 (5.3.2.4) 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 (5.3.2.5) DNS server

If a DNS server is used, enter the server's IP address. Contact your network administrator in case you have questions about the configuration of the DNS server.

10.1 (5.3.2.6) Domain

Enter the domain. Contact your network administrator in case you have questions about the configuration of the domain.

10.1 (5.3.3) BCOM

Set the parameters for communication with other devices via BCOM. For further information, refer to “BCOM” on page 44.

10.1 (5.3.3.1) 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 (5.3.3.2) 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 (5.3.3.3) 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 (5.3.3.4) 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 (5.3.3.5) 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 (5.3.4) Modbus TCP

Settings for communication with other devices via Modbus TCP. For further information, refer to “Modbus TCP” on page 44.

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SettingsSettings

10.1 (5.3.4.1) 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 (5.3.5) BS bus

Set the parameters for communication with other devices via the Bender sensor bus. For further information, refer to “BS bus” on page 48.

10.1 (5.3.5.1) Address

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

10.1 (5.4) Display

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

10.1 (5.4.1) 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 (5.5) Password

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

10.1 (5.5.1) Password

Enter an individual four-digit password.

10.1 (5.5.2) Status

Decide if the password query should be used:

10.1 (5.6) Commissioning

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

10.1 (5.7) 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 (5.8) Service

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

10.1 (6.0) 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

•Clock

•Ethernet

•BS bus

Device name, serial number, article number

Software version measurement technique, software version HMI

Selected profile, selected system type

Time, date, summer time

IP address, DHCP status, MAC address

BS address of the device

•on

•off

Password query active

Password query inactive

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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.

11.4 Web server

The ISOMETER® has an integrated web server which displays ISOMETER® data comfortably on every PC via a web browser. The web server can be used to read out measured values and parameterise the ISOMETER®s. You can access the web server by entering the IP address of the ISOMETER® into the browser (e.g. http://192.168.0.5). The Info menu provides information about the ISOMETER®‘s IP address (see 10.1 (6.0) “Info” on page 43).

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.

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

• Maintenance

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

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 42).

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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.

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 42).

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

Device communicationDevice communication

Web server device menu (first level)

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)

6 Menu Adjust device settings here.

7Info

System OK/

alarms

Alarm/

meas. values

10 i symbol

•DEVICE (2)

•ALARMS (3)

• PARAMETER ADDRESSES (4) Refer to “Web server device menu (first level)” on page 45.

• Indication of device information regarding software, measurement technique, Ethernet and BS bus address.

• Indication of Modbus information for the individual parameters. 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.

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

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Device communicationDevice communication

CAUTION



222

2 2

CAUTION

11.5 BS bus

The BS bus is used to extend Bender measuring devices (e.g. ISOMETER®) with Bender sensor devices. 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

www.bender.de/manuals

When using interface converters, a galvanic separation is required.

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

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.

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.

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

1Master

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

3Slave

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.

RS-485 specifications/cables

The RS-485 specification restricts the cable length to 1200 m

and requires a daisy chain 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.

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12. Special functions for coupled IT systems

IT-System 1 IT-System 2

Special functions for coupled IT systems

12.1 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.

12.2 System isolation via digital input with two coupled systems

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

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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12.3 System isolation via ISOnet

CAUTION

IT-System 1 IT-System 2

IT-System 3IT-System 4

Ethernet

SWITCH

Special functions for coupled IT systemsSpecial functions for coupled IT systems

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.

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 -> 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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13. 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

µF

0…150

0…5

µF

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.

Allows Bender Service to implement customer-specific measurement settings. If no settings

Customized ––––

are made by Bender service, then the profile has the same parameters and technical specification as the Powercircuits profile.

Response times see “Diagrams” on page 53.

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14. 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]

14.1 Response time profile power circuits

14.2 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]

14.3 Response time profile generator

14.4 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]

50 65 140 190 210 220

100

10 100 500 1000 5000 10000

Response time [sec]

Response value Ran[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)

Ce  20 μF

Ce  5 μF

Ce  1μF

14.5 Response time profile inverter > 10 Hz

14.6 Response time profile inverter < 10 Hz

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Diagrams

0,1

100

1000

0,1 1 10 100

system leakage capacitance [µF]

response time [sec]

Typical response time for DC alarm for RF =100KΩ depending on

system prole and system leakage capacitance

Power circuit

Control circuit

High capacitance

Inverter >10Hz

Inverter <10Hz

Generator

0.1 1 10 100 1000 10000 100000

Relative uncertainty 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 %

90 %

80 %

70 %

60 %

50 %

40 %

30 %

20 %

10 %

100 %

Response value R

[kΩ]

Operating uncertainty [%]

Ce ≤ 1000 µF

Ce ≤ 1 µF

14.7 Response time DC alarm

14.8 Relative uncertainty

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15. Alarm messages

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

• 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)

“Functional description” on page 10

“Connection” on page 17

& menu setting

“System type” on page 34

“Connection” on page 17

“Device profiles” on page 52 & “Profile” on page 34

“DHCP” on page 42

“Clock” on page 40

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

Failure address

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

One device of the ISOnet interconnection is not accessible

• 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

• Check device function

SERVICE lights up

“System isolation via ISOnet” on page 50

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Alarm messages

Alarm message Description Measures Reference LED indicators

General fault at ISOnet, which is not covered by

Disturbance ISOnet

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

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

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

"Num.ISOnet devices" and "Failure address". For example, sending messages can fail or another device cannot process a message.

• Check Ethernet connection

• Check device function

• Switch OFF and switch ON the power supply

“System isolation via ISOnet” on page 50

“DC alarm” on page 33

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16. Factory settings

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

System

System type 3AC Profile Power circuits

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

Digital output 2

Function 1 off Function 2 off Function 3 off

Switching elements

Relay 1

Tes t on Operating mode N/C operation Function 1 Ins. alarm 1 Function 2 Connection fault Function 3 off

Relay 2

Tes t on Operating mode N/C operation Function 1 Ins. alarm 2 Function 2 Device fault Function 3 Connection fault

Interfaces

DHCP off

IP address 192.168.0.5 Net mask 255.255.255.0 BCOM address system-1-0 Device address BS bus 3

Digital outputs

Digital output 1

Function 1 off Function 2 off Function 3 off

ISOnet

ISOnet off

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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 ............................................................................................................................................................................... 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) ....................................................................................................................................Overvoltage category III, 1000 V

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

IC3 / (IC4-5) .......................................................................................................................................Overvoltage categoryIII, 300 V

IC4 / IC5 ............................................................................................................................................. Overvoltage category 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 via A1/+, A2/-: Supply voltage range U Tolerance of U Maximum permissible input current of U Frequency range of U

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

..................................................................................................................................................................... -30…+15 %

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

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

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

Power consumption, DC................................................................................................................................................................ ≤ 12 W

Power consumption, typically 50/60 Hz .......................................................................................................................... ≤ 12 W/21 VA

< 690 V)..................................................................... 3

>690 < 1000 V)........................................................ 2

Power consumption, typically 400 Hz ............................................................................................................................. ≤ 12 W/45 VA

Supply via X1: Supply voltage U Tolerance of U

............................................................................................................................................................................ DC 24 V

............................................................................................................................................................... DC -20…+25 %

IT system being monitored

Nominal system voltage range U

..................................................................................................................................... AC 0…690 V

............................................................................................................................................................................................. DC 0…1000 V

...................................................................................................................................................... AC/DC 0…600 V (for UL applications)

Tolerance of U Frequency range of U Max. AC voltage U

..................................................................................................................................................................... AC/DC +15 %

....................................................................................................................................................... DC, 1…460 Hz

in the frequency range fn = 0.1…4 Hz .................................................................. U

= 50 V/Hz² *(1+ fn²)

~ 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)

Response time DC alarm at C Start-up delay T

start-up

= 1 μF......................................................................................profile dependent, typ. 2 s (see diagram)

............................................................................................................................................................... 0…120 s

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 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 Tolerance measurement of C

................................................................................................................................................................0…1000 μF

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

In-/Outputs (X1-Interface)

Cable length X1 (unshielded cable)............................................................................................................................................... ≤ 10 m

Cable length X1 (shielded cable, shield connected to earth (PE) on one end, recommended: J-Y(St)Y min. 2x0,8)............. ≤ 100 m

Total max. supply output current via X1.+/X1.GND for each output.......................................................................................... max. 1 A

Total max. supply output current via A1/A2 on X1.............................................................................................................. max. 200 mA

Total max. supply output current via A1/A2 on X1 between 16,8 V and 40 V .........................................................................................

............................................................................................................................................................. I

............................................................................................................................................ (negative values are not allowed for I

= 10mA + 7mA/V * Us

LmaxX1

Digital Inputs (I1, I2, I3)

Number ...................................................................................................................................................................................................... 3

Operating mode, adjustable................................................................................................................................... active high, active low

Functions ..................................................................................................... off, test, reset, deactivate device, start initial measurement

Voltage...........................................................................................................................................Low DC -3…5 V, High DC 11…32 V

Tolerance Voltage........................................................................................................................................................................... ± 10 %

Digital Outputs (Q1, Q2)

Operating mode, adjustable.................................................................................................................................................active, passive

Functions ........................................ off, Ins. alarm 1, Ins. alarm 2, connection fault, DC- alarm

, DC+ alarm 4), symmetrical alarm,

........................................................................ device fault, common alarm, measurement complete, device inactive, DC offset alarm

Voltage............................................................................................................................. passive DC 0…32 V, active DC 0/19.2…32 V

Analogue Output (M+)

Operating mode................................................................................................................................ linear, midscale point 28 kΩ/120 kΩ

Functions ...........................................................................................................................................................insulation value, DC offset

Current ........................................................................................0…20 mA (< 600 Ω), 4…20 mA (< 600 Ω), 0…400 μA (< 4 kΩ)

Voltage........................................................................................................................................ 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

Data rate................................................................................................................................................................................... 9.6 kBaud/s

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

......................................................................... device fault, common alarm, measurement complete, device inactive, DC offset alarm

Contact 21-22-24 ........................... off, Ins. alarm 1, Ins. alarm 2, connection fault, DC- alarm

, DC+ alarm 4), symmetrical alarm,

......................................................................... device fault, common alarm, measurement complete, device inactive, DC offset alarm

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

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Technical dataTechnical data

Environment/EMC

EMC ................................................................................................................................................................................. IEC 61326-2-4

Ambient temperatures:

Operating temperature........................................................................................................................................................ -25…+55 °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 (except condensation and formation of ice)

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............................................................................

onductor, flexible with TWIN ferrule with plastic sleeve..................................................................................0.5…1.5 mm²

Multiple

.............................. 0.25…2.5 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

Other

Operating mode........................................................................................................................................................ continuous operation

Mounting (0°)..........................................................................................display oriented, cooling slots must be ventilated vertically

Degree of protection internal components .........................................................................................................................................IP40

Degree of protection terminals ............................................................................................................................................................IP20

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 ........................................................................................................................................................................................... < 390 g

Option "W" data different from the standard version

Rated operational current of switching elements .....................................................................................max. 3 A (for UL applications)

Ambient temperatures:

Operating temperature........................................................................................................................................................-40…+70 °C

........................................................................................................................................................... -40…+65 °C (for UL applications)

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.

Us [Volt] = supply voltage ISOMETER®

For Un ≥50V only.

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.

6) Recommendation: Devices mounted at 0 ° (display-oriented, cooling slots must be ventilated vertically).

For devices mounted at an angle of 45°, the max. working temperature is reduced by 10 °C. For devices mounted at an angle of 90°, the max. working temperature is reduced by 20 °C.

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Technical dataTechnical data

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).

17.3 Standards and certifications

The ISOMETER® has been developed in compliance with the following standards:

• DIN EN 61557-8 (VDE 0413-8):2015-12

• IEC 61557-8:2014-12

• IEC 61557-8:2014/COR1:2016

• DIN EN 61557-8 Ber 1 (VDE 0413-8 Ber 1):2016-12

17.4 Ordering details

Accessories

Description Art. No.

iso685 Mechanical accessories comprising: Terminal cover and 2 mounting clips*

iso685 Plug kit, screw terminals* B91067901

iso685 plug kit, with push-wire terminals B91067902

Transparent cover 144x72 (IP65) for FP200 ** B98060005

B91067903

* included in the scope of delivery ** If the “transparent front cover 144x72 (IP65)” is used, the cutout in the control cabinet

must be increased in height from 66 mm to 68 mm (+ 0.7 / -0 mm).

Suitable system components

Description Type Art. No.

Suitable measuring instruments

SKMP

: 28 kΩ,120 kΩ Current values: 0…400 µA, 0…20 mA (additonal information here)

7204-1421 B986763

9604-1421 B986764

9620-1421 B986841

Typ e

iso685-D-B

iso685W-D-B*

Combination iso685-S-B + FP200

Combination iso685W-S-B + FP200W*

Supply voltage U

AC 24…240 V; 50…400 Hz DC 24…240 V

Art. No.

B91067020

B91067020W

B91067220

B91067220W

* Option "W": Increased shock and vibration resistance 3K5, 3M7; -40…+70 °C

Display for front plate mounting

iso685-S (only in combination with FP200)

iso685W-S* (only in combination with FP200)

FP200 B91067904

FP200W B91067904W

Supply voltage: AC 24…240 V; 50…400 Hz DC 24…240 V

B91067110

B91067110W

* Option "W": Increased shock and vibration resistance 3K5, 3M7; -40…+70 °C

SKMP = midscale point

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18. Glossary

• 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.

•ISOnet

• Modbus TCP Modbus is an international widely spread protocol for data transfer.

• System (BCOM)

• 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.

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.

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.

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 63 Alarm

Alarm 1 11 Alarm 2 11 Alarm settings 33 Reset alarm message 40

BCOM 44, 64 BS bus 48, 64 Button

DATA 15 ESC 15 Info 15 MENU 15 OK 15 RESET 15 TEST 15

Buttons 15

Characteristic curves 53 Clock 24 Commissioning 23

Commissioning wizard 23 Initial commissioning 23

Recommissioning 24 Commissioning wizard 24 Communication interfaces 44 Connection

3(N)AC system 19

AC system 19

Connection conditions 17

Connections and panel 14

DC system 20 Ethernet interface 21 Relay 1 interface (11 12 14) 22 Relay 2 interface (21 22 24) 22 Supply voltage 21

X1 interface 20 Control circuits 52 Coupled IT systems 49 Coupling monitoring 34

Data-isoGraph 28 Date 24, 41

Setting the date 40 Device buttons 15 DHCP 42, 64 Diagrams 53 Display 15, 26

Fault display (active) 26

Fault display (inactive) 27

Fault memory 28

History memory 29

Limit values for R(an) 26

Signal quality of the measurement 26

Standard display 26

Ethernet interface 21

Features 10 Function description

ISOnet 50 Functional description

iso685-D 10

Hazards when handling the device 8 History memory 29

Initial measurement 29, 40 Inputs 35 Installation

DIN rail mounting 17 Screw mounting 16

Insulation resistance

Activate/deactivate measurement 34 Intended use 9 Interfaces 11, 41

BCOM 42, 44

BS bus 48

Ethernet 42, 44

Modbus TCP 42

Modbus/TCP 44

Web server 44

X1 20 ISOnet 50, 64

Language 24, 40 LEDs

ALARM 1 15

ALARM 2 15

ON 15

SERVICE 15

Mains frequency 52 Mains voltage 9 Measured values 40

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Index

Menu 31 Minimum current rectifier 18 Minimum distance 17 Modbus TCP 64 Modbus/TCP 44

Nominal system voltage 52, 60 Nominal voltage 17 Normal operation 26

Operating mode 35 Operation

Buttons 23

Commissioning 18, 23 Ordering information 63 Output 36

Password 43 Product description 10 Profile overview 52 Protective earth conductor (PE) 17

Safety instructions 8 Self test 11, 25 Service menu 43 Set language 40 Setting the time 40, 41 Settings 52

Alarm 33 Basic settings 40 Coupling devices 24 Coupling monitoring 34 Date and time 24 Inputs 35 Language 24, 40 Manual test 40 Measured values 40 Profile 24, 34 Response value Ran1, Ran2 25

System type 24 Signal quality of the measurement 26 Start-up delay 34 Supply voltage 60 System leakage capacitance 9, 10, 52

Response time

Profile control circuits 53 Profile generator 54 Profile high capacitance 54 Profile inverter 10 Hz 55 Profile power circuits 53 Relative uncertainty 56

Response value 10, 60

Technical data 60

Web server 44, 64

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Notes

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Bender GmbH & Co. KG

P.O. Box 1161 • 35301 Gruenberg • Germany Londorfer Straße 65 • 35305 Gruenberg • Germany

Customer sevice

Service hotline: 0700-BenderHelp (Phone and Fax) Carl-Benz-Straße 8 • 35305 Gruenberg • Germany

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

Email: [email protected] Web: www.bender.de

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

Email: [email protected] Web: http://www.bender.de

BENDER Group

Fotos: Bender Archiv und bendersystembau Archiv.