Bender ISOMETER isoNAV685-D-B User Manual

EN

Manual

ISOMETER®
isoNAV685-D-B

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

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

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.: [phone]
Fax: [phone]

E-Mail: [e-mail]
Web: www.bender.de

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

Tel.:[phone]
Fax:[phone]

E-Mail:[e-mail]

© Bender GmbH & Co. KG

All rights reserved.

Reproduction only with permission

of the publisher.

Subject to change.

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 Inspection, transport and 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

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

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

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

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

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

4.2 Connections and panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.3 Display elements and device buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6. Connection .......................................................................................16

6.1 Connection requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6.2 Connection to a 3(N)AC system/system type 3AC . . . . . . . . . . . . . . . . . . .18

6.3 Connect to a frequency converter to monitor in the off state (Offline)18

6.4 Connection to the X1 interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

6.5 Connection to the supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

6.6 Connection to the Ethernet interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

6.7 Connection to the relay 1 interface (11 12 14) . . . . . . . . . . . . . . . . . . . . . . 20

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

7. Commissioning ............................................................................... 22

7.1 General initial commissioning process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

7.2 Recommissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

8. Display ..............................................................................................23

8.1 Standard display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

8.2 Fault display (active) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

8.3 Fault display (inactive) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

8.4 Acknowledge fault memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

8.5 History memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

8.6 Initial measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

9. Menu ................................................................................................. 27

9.1 Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

9.2 Operating and navigating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

9.2.1 Easy operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

5. Mounting .......................................................................................... 15

5.1 General instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2 Screw mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.3 DIN rail mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

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isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Table of contentsTable of contents

10. Settings .......................................................................................... 29

10.1 Settings in the device menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

10.1 (1.0) Alarm settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

10.1 (1.1) Insulation alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

10.1 (1.1.1) Alarm 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

10.1 (1.1.2) Fault memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

10.1 (1.2) Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

10.1 (1.3) System type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

10.1 (1.4) Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

10.1 (1.5) T(Start). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

10.1 (1.6) Coupling monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

10.1 (1.7) Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

10.1 (1.7.1) Digital 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

10.1 (1.7.1.1) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

10.1 (1.7.1.2) t(on) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

10.1 (1.7.1.3) t(off) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

10.1 (1.7.1.4) Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

10.1 (1.7.2) Digital 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

10.1 (1.7.3) Digital 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

10.1 (1.8) Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

10.1 (1.8.1) Relay 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

10.1 (1.8.1.1) TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

10.1 (1.8.1.2) Relay mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

10.1 (1.8.1.3) Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

10.1 (1.8.1.4) Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.1 (1.8.1.5) Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.1 (1.8.2) Relay 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.1 (1.8.3) Digital 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.1 (1.8.3.1) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.1 (1.8.3.2) Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.1 (1.8.3.3) Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.1 (1.8.3.4) Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.1 (1.8.4) Digital 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10.1 (1.8.5) Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (1.8.5.1) TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (1.8.5.2) Function 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (1.8.5.3) Function 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (1.8.5.4) Function 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (2.0) Data measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (3.0) Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

10.1 (4.0) History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

10.1 (5.0) Device settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

10.1 (5.1) Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (5.2) Clock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (5.2.1) Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (5.2.2) Format (time). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10.1 (5.2.3) Summer time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (5.2.4) Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (5.2.5) Format (date). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (5.2.6) NTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (5.2.7) NTP server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (5.2.8) UTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (5.3) Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (5.3.1) Write access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (5.3.2) Ethernet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (5.3.2.1) DHCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10.1 (5.3.2.2) IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.3.2.3) SN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.3.2.4) Std. GW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.3.2.5) DNS server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.3.2.6) Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.3.3) BCOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.3.3.1) System name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.3.3.2) Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.3.3.3) Device address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.3.3.4) Timeout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.3.3.5) TTL for subscription . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.3.4) Modbus TCP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.3.4.1) Port 502. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.3.5) BMS bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.4) Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.4.1) Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.5) Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.5.1) Password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1 (5.5.2) Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

10.1 (5.6) Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

10.1 (5.7) Data backup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

10.1 (5.8) Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

10.1 (6.0) Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

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isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Table of contentsTable of contents

11. Device communication ............................................................... 37

11.1 Ethernet interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

11.2 BCOM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

11.3 Modbus TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

11.4 Web server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

12. Diagrams ........................................................................................ 41

12.1 Response time profile offline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

12.2 Relative uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

13. Alarm messages ............................................................................ 42

14. Factory settings ............................................................................ 43

15. Technical data ............................................................................... 44

15.1 Tabular data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

15.2 Standards and certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

15.3 Ordering details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

16. Glossary .......................................................................................... 48

17. Modbus settings ...........................................................................49

17.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

17.2 Data access by means of Modbus/TCP-Protokoll . . . . . . . . . . . . . . . . . . .49

17.2.1 Exception code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

17.2.2 Modbus request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

17.2.3 Modbus response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

17.2.4 Structure of exception code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

17.3 Measuring value information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

17.3.1 High-byte test status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

17.3.2 Low-byte alarm status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

17.3.3 High-byte range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

17.3.4 Low-byte unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

17.4 Modbus register assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

Index ........................................................................................................60

5

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

1. Important information

DANGER

WARNING

CAUTION

Important information

1.1 How to use this manual

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

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

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

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

1.2 Technical support

For commissioning and troubleshooting Bender offers you:

1.2.1 First level support

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

• Questions concerning specific customer applications

• Commissioning

• Troubleshooting

Telephone: [phone]*
Fax: [phone]

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

1.2.2 Repair service

Repair, calibration, update and replacement service for Bender products

• Repairing, calibrating, testing and analysing Bender products

• Hardware and software update for Bender devices

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

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

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

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

6

Telephone: [phone]** (technical issues)
[phone]**, -785** (sales)

Fax: [phone]
E-mail: [e-mail]

Please send the devices for repair to the following address:

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

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

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: [phone]**, -762 **(technical issues)

[phone]** (sales)

Fax: [phone]
E-mail: [e-mail]
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 Inspection, transport and 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.

7

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

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.

8

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

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® isoNAV685-D-B monitors the insulation resistance of loads that are
switched off. These loads, which are temporarily or mostly switched off, are powered by
TN, TT or IT systems.

The internal mains switch has a circuit capacity of AC 0…690 V and DC 0…1000 V.

Due to the separate supply voltage, de-energised systems can also be monitored. The
maximum permissible system leakage capacitance is 150 µF.

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.

9

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

3. Function

*

Function

3.1 Features

• ISOMETER® to monitor the insulation resistance in systems that are switched off.

• Automatic adaptation to the existing system leakage capacitance.

• measurement method.

• An adjustable response value in the range 1 k…10 M
(factory setting = 50 k).

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

• Ground fault monitoring.

• Automatic device self test.

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

• Freely programmable digital inputs and outputs.

• Remote setting of certain parameters via Internet
(Option; COMTRAXX® Gateway).

• Worldwide remote diagnosis via Internet.

• Modbus TCP, web server and BCOM.<

3.2 Product description

The ISOMETER® isoNAV685-D-B is an insulation monitoring device for IT systems in ac­cordance with IEC 61557-8. It is universally applicable in TN, TT or IT systems that are
switched off.

3.3 Functional description

The insulation monitoring device ISOMETER® isoNAV685-D-B monitors the entire insula­tion resistance of systems that are switched off and triggers an alarm when the insulation
resistance value falls below a preset response value.

The insulation resistance of the L1, L2 and L3 coupling paths is measured sequentially.
This means that faults are not only measured, but they can also be localized or located.
The test time may vary, e.g. it may be longer, depending on the leakage capacitance.

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 A
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.

The response values and other parameters are set using a commissioning wizard as well
as 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 and the
appropriate terminals

L1/+, L2, L3/-.

prescribed wiring of the

10

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

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
requ irements in order to ensure an op timised respons e time an d relati ve uncer tainty. Dif­ferent measurement profiles which can be selected from a setup menu allow optimum
adaptation of the measurement technique to the specific application.

If the resistance value below a set response value R
vated, the LED ALARM 1 (alarm at L1 or L2) or ALARM 2 (alarm at L3) lights and the LCD
shows the measured value. If the fault memory is activated, the fault message will be
stored. Pressing the RESET button resets the insulation fault message, provided that the
current insulation resistance displayed at the time of resetting is at least 25 % above the
actual 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.

, the associated alarm relay is acti-

an

3.4 Interfaces

• Communication protocol Modbus TCP

• BCOM for Bender device communication via Ethernet

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

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 33).

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 26).

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

“Alarm messages” on page 42). 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-

11

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.

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

4. Device overview

4.1 Dimensions

108 mm

110 mm

mm 39

12

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Device overview

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

s

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

X3 Optional expansion module for Bender devices (e. g. BB-Bus)

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

4.2 Connections and panel

ON
Display

MENU
ESC

13

RESET

DATA

LEDs: SERVICE,
ALARM 1, ALARM 2

TEST

INFO
OK

X3

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Device overviewDevice overview

1

7

8

9

10

11

2

3

4

5

6

4.3 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

2

3

4

5

SERVICE

ALARM 1

ALARM 2

measurements.
Other information is available in the chapter “Display” from page 23.

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.

6

7

8

9

10

11

ESC

TEST

RESET

Info

OK

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.

14

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

5. Mounting

DANGER

72 mm

108 mm

54 mm

100 mm

107,3 m m

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

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

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

20. Fix the ISOMETER® using three M4 screws.

15

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Connection

DANGER

DANGER

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.

16

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.

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

ConnectionConnection

CAUTION

CAUTION

CAUTION

CAUTION

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.

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.

17

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.

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

ConnectionConnection

WARNING

L1

L2

L3

N

PE

U

S

6A

U

n

PE

M

DC+

DC-

AC

KE E

IT System

OK
230 kΩ

R(an) 4 0kΩ/10kΩ

OK
230 kΩ

L1/+ L2 L3/-

L1/+ L2 L3/- KE E

3

=

3

=

6.2 Connection to a 3(N)AC system/system type 3AC

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-circuit proof and earth-fault proof wiring.

The ISOMETER® may only be used for monitoring de-energized sys­tems. The device must be deactivated via the digital input before
the mains voltage is switched on.

6.3 Connect to a frequency converter to monitor in the off state (Offline)

The ISOMETER® may only be used for monitoring de-energized sys­tems. The device must be deactivated via the digital input before
the mains voltage is switched on.

18

Position the terminal cover and click it into place

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

ConnectionConnection

I1
I2
I3

A
B

M+

Q2
Q1

+

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

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

Ground
unused
Output 2
Output 1
+24 V

CAUTION

U

S

6.4 Connection to the X1 interface

6.5 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.

Position the terminal cover and click it into place

19

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

ConnectionConnection

11
12
14

Relay 1

Common contact

Normally open (n.o)

Normally closed (n.c)

6.6 Connection to the Ethernet interface

Position the terminal cover and click it into place

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

Position the terminal cover and click it into place

20

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

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

21
22
24

Relay 2

Common contact

Normally closed (n.c)

Normally open (n.o)

Position the terminal cover and click it into place

ConnectionConnection

21

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

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 29.

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®. The ISOMETER® then performs a 4­step self test during which the alarm relays are not checked. 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.
However, the commissioning wizard can be started as described at

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

7.2 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.
The device settings can also be carried out via the commissioning-wizard, which can be
manually started via the menu path:1

Menu/Device settings/Commissioning

This menu can be used to modify settings made previously.

“Display” on page 23.

Observe device status!

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

Commissioning flow chart

Observe the device status!

The device changes from the alarm state to normal state after

22

completing initial commissioning and initial measurement by ad­hering to the response values set.

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

8. Display

IT System

OK

L1 230 kΩ
L2 250 kΩ
L3 130 kΩ

R(an) 50kΩ

OK

L1 230 kΩ
L2 250 kΩ
L3 130 kΩ

Display

8.1 Standard display

In normal operation, the ISOMETER® displays the message OK and below the latest meas­ured insulation resistance of the connected system points L1, L2 and L3.

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 value for R(an) is indicated.
In the example shown below Ran=50 k.

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 23

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

and button.

ALARM

Iso. Alarm L1

23 kΩ

23

5/7

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

DisplayDisplay

230 kΩ

IT System

3x

1/4

230 kΩ

Insulation fault

28.03.14 17:0 2

28.03.14 17:18

2/4

7 kΩ7 kΩ

8.3 Fault display (inactive)

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.

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

24

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

DisplayDisplay

RESET 3.2

Reset current

messages? All

messages are
saved in the

history memory.

Cancel RESET

Historie 4.1

Isolationsfehler
11kΩ

28.03.14 17:02

28.03.14 17:18

8/8

Next message

Leave view

Fault description
Alarm value

Feault occured
Fault disappeared
Previous message

Number of selected
errors/
Tot al number of
error messages

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 History memory

Up to 1023 alarm messages and device errors are stored in the history memory with date
and t ime stam p. When t he histo ry memory is deleted, the minimum insulation resistance

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

R

min

25

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

8.6 Initial measurement

IT System

R(an) 40kΩ/10 kΩ

Initial

measurement

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.

DisplayDisplay

26

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

9. Menu

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

2. Voltage

3. t(on)

3. Memory

2. Profile

3. System type

4. Coupling

5. Device

6. t(start)

7. Coupling monitoring

8. 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

9. 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

2. Data meas. values

3. Control

4. History

5. Device settings 1. Language

2. Cloc

k

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

y

1. Brightness

5. Passwort 1. Passwort

2. Status

6. Commissioning

7. Data protection

8. Service

6. Info

9.1 Menu structure

Menu

27

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

9.2 Operating and navigating

System type 5.6.6

• 3AC

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 14.

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".

28

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

10. Settings

t

R

an1

Alarm 1
aktiv

Alarm 1
inaktiv

Δ 25 % + 0,5 kΩ

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

10.1 (1.2) Profile

The ISOMETER® profile is set to "Offline".

System

Measuring
voltage

± 5 V

Offline

leakage
capacitanc
e

µF

150

Description

For disconnected loads and
frequency converters.

In the "Insulation alarm" menu, you can set the limits for the ISOMETER® ALARM:

10.1 (1.3) System type

The activation or deactivation of the alarm for R

is illustrated in the following graph:

an

The device is set to a 3AC system.
An alarm will become inactive as soon as +25 % +0.5 k of the set operating value is
exceeded.

•3AC

3AC system
(refer to “Connection to a 3(N)AC system/system type 3AC”

on page 18)

10.1 (1.4) Device

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

•Active

•Inactive

The device is active.

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

10.1 (1.1.1) Alarm 1

For Alarm 1, an insulation resistance of between 1 k…10 M can be set.

10.1 (1.1.2) Fault memory

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

10.1 (1.5) T(Start)

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 (1.6) Coupling monitoring

Coupling monitoring (L1, L2, L3 network connection monitoring) is deactivated.

•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.

•off

Coupling monitoring is deactivated.

29

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

10.1 (1.7) Inputs

I2
I3

A
B

M+

Q2
Q1

+

Device
inactive

Reset Test

I1

+I

x

X1 X1

t

0

1

t(on)

Reaction
Impulse on

Reaction
Impulse o

+I

x

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

1

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 (1.7.1) Digital 1

The following parameters can be set for the digital input:

10.1 (1.7.1.1) 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

0

< t(on)

t(on)

Impulse onImpulse o

t

10.1 (1.7.1.2) 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 (1.7.1.1) Mode”).

10.1 (1.7.1.3) 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 (1.7.1.1) Mode”).

10.1 (1.7.1.4) Function

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

differently:

•off

•TEST

•RESET

•Deactivate
device

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!

30

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

SettingsSettings

≥ 1

Response

Function 1

Function 2

Function 3

10.1 (1.7.2) Digital 2

Refer to “10.1 (1.7.1) Digital 1”.

10.1 (1.7.3) Digital 3

Refer to “10.1 (1.7.1) Digital 1”.

10.1 (1.8) Outputs

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

10.1 (1.8.1) Relay 1

The following parameters can be set for each relay:

10.1 (1.8.1.1) 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 (1.8.1.2) Relay mode

The relay mode can be adapted to the application:

•N/C

Normally closed- N/C operation contacts11-12-14 / 21-22-24
(in fault-free condition, the alarm relay is energised).

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

•off

•Ins. Alarm 1

•Ins. Alarm 2

•Connection fault

•Device fault

•Device inactive

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 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 the event of an internal device
fault.

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

an1.

an2.

•N/O

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

11-12-14 /

21-22-24

10.1 (1.8.1.3) Function 1

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

31

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

SettingsSettings

X1

iso685

Qx

+

oder

internal

external

10.1 (1.8.1.4) Function 2

Refer to “10.1 (1.8.1.3) Function 1”.

10.1 (1.8.1.5) Function 3

Refer to “10.1 (1.8.1.3) Function 1”.

10.1 (1.8.2) Relay 2

Refer to “10.1 (1.8.1) Relay 1”.

10.1 (1.8.3) Digital 1

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 (1.8.3.1) Mode

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

•Active

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

X1

+

Qx

X1

+

Qx

•Passive

iso685

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

X1

+

iso685

Qx

iso685

32

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
der “Digital Outputs (Q1, Q2)” on page 45.

10.1 (1.8.3.2) Function 1

Refer to “10.1 (1.8.1.3) Function 1”.

10.1 (1.8.3.3) Function 2

Refer to “10.1 (1.8.1.3) Function 1”.

10.1 (1.8.3.4) Function 3

Refer to “10.1 (1.8.1.3) Function 1”.

10.1 (1.8.4) Digital 2

in the Technical Data un-

LmaxX1

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

SettingsSettings

Refer to “10.1 (1.8.3) Digital 1”.

10.1 (1.8.5) Buzzer

The following parameters can be set for the buzzer:

10.1 (1.8.5.1) 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 (1.8.5.2) Function 1

Refer to “10.1 (1.8.1.3) Function 1”.

10.1 (1.8.5.3) Function 2

Refer to “10.1 (1.8.1.3) Function 1”.

10.1 (1.8.5.4) Function 3

Refer to “10.1 (1.8.1.3) Function 1”.

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:

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 25.

•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:

•German

•English

10.1 (5.2) Clock

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

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).

•Insulation data

Display the insulation resistance of the three coupling paths L1, L2,
L3

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

Manual device test

Reset of fault and alarm messages

33

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

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

SettingsSettings

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.

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

10.1 (5.2.6) NTP

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

•on

•off

Synchronisation via NTP server is activated.

Synchronisation via NTP server is deactivated.

10.1 (5.2.7) NTP server

Set 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:

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 (5.2.4) 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

34

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 36).

•on

Activate automatic IP address assignment.

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

SettingsSettings

•off

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.

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 37.

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.

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.

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 37.

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) BMS bus

The function of the BMS bus is not available in this device.

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.

35

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

10.1 (5.5.2) Status

Decide if the password query should be used:

SettingsSettings

•on

•off

Password query active

Password query inactive

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

Device name, serial number, article number

Software version measurement technique,
software version HMI

•Measurement

-technique

•Clock

•Ethernet

•BMS bus

36

Selected profile, selected system type

Time, date, summer time

IP address, DHCP status, MAC address

No function

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

11. Device communication

Device communication

11.1 Ethernet interface

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

11.2 BCOM

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

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

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

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

11.3 Modbus TCP

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

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

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

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

“Write access” on page 34).

37

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Device communicationDevice communication

1

2

3

4

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 36).

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.

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 34).

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

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.

4

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?".

38

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.

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Device communication

Web server user interface

5

9

6

10

39

7

8

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Legend for user interface

Main menu of the web server (first level)

•START (1)

5

6 Menu Adjust device settings here.

7Info

8

9

System OK/
alarms

Alarm/
meas.val­ues

•DEVICE (2)

• ALARMS (3)

• PARAMETER ADDRESSES (4)
Refer to “Web server device menu (first level)” on page 38.

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

Device communicationDevice communication

10 i symbol

40

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

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

12. Diagrams

Ce ≤ 150 µF

C

e

≤ 50 µF

C

e

≤ 20 µF

Ce ≤ 5 µF

Ce ≤ 1 µF

10

100

1000

100010010

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

e

) according to IEC 61557-8 (Un = AC 690 V, fn = 60 Hz)

Response time [sec]

Response value R

an

[kΩ]

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

0000010000100010010111,0

Operating uncertainty [%]

C

e

<=150μF

C

e

<=1μF

Relative uncertainty as a function of the response value (Ran) and system leakage
capacitance (Ce) according to IEC 61557-8 (Un = AC 690 V, fn = 60 Hz)

12.1 Response time profile offline

12.2 Relative uncertainty

41

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

13. Alarm messages

Alarm message Description Measures Reference LED indicators

Check E-KE connections
for interruptions!

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

No DHCP server found! Connection problem at the Ethernet interface

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

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

Device error x.xx Internal device fault

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

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

• Press the test button

• 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)

• 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

“Connection” on
page 16

“DHCP” on page 34

“Clock” on page 33

ALARM 1 + ALARM
2 flash in common
mode

SERVICE lights up

42

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

14. Factory settings

Factory settings

Parameter Value

Response values/alarms

Response value R

Response value R

DC alarm off
DC-offset voltage for DC alarm 65 V
Fault memory off
Coupling monitoring on

Time response

Start-up delay T

Digital inputs

Digital input 1

Mode (Operating mode) Active high
Function TEST

Digital input 2

Mode (Operating mode) Active low
Function RESET

Digital input 3

Mode (Operating mode) Active high
Function Deactivate device

an1

an2

start-up

(ALARM 1)

(ALARM 2)

40 k

10 k

0 s

Parameter Value

Function 3 off

Switching elements

Relay 1

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

Relay 2

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

Interfaces

DHCP off

IP address 192.168.0.5
Net mask 255.255.255.0
BCOM address system-1-0

Digital outputs

Digital output 1

Function 1 off
Function 2 off
Function 3 off

Digital output 2

Function 1 off
Function 2 off

43

System

System type 3AC
Profile Power circuits

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

15. Technical data

Technical data

15.1 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

s

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

s

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

s

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

s

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

n

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

n

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

Supply via X1:
Supply voltage U
Tolerance of U

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

s

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

s

IT system being monitored

Nominal system voltage range Un....................................................................................................................................................offline

Circuit capacity internal mains switch ......................................................................................................AC 0…690 V; DC 0…1000 V

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

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
Start-up delay T

at RF = 0.5 x Ran (Ran = 10 kΩ) and Ce = 1 μF according to IEC 61557-8.......................................................... 30 s

an

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

start-up

Measuring circuit

Measuring voltage U
Measuring current I
Internal resistance R
Permissible extraneous DC voltage U
Permissible system leakage capacitance C

Display

Indication .......................................................................................................................graphic display 127 x 127 pixels, 40 x 40 mm

........................................................................................................................................................................ ±5 V

m

..................................................................................................................................................................≤ 13,4 μA

m

,Zi............................................................................................................................................................... ≥ 372 kΩ

i

.......................................................................................................................................≤ 1200 V

fg

.....................................................................................................................................150 μF

e

2)

Display range measured value ........................................................................................................................................ 0.1 kΩ…20 MΩ

LEDs

ON (operation LED)............................................................................................................................................................................ green

SERVICE ............................................................................................................................................................................................. yellow

ALARM 1 (L1 and L2) .......................................................................................................................................................................yellow

ALARM 2 (L3) ...................................................................................................................................................................................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

1)

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

LmaxX1

3)

)

44

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Technical dataTechnical data

Digital Inputs (I1, I2, I3)

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

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

Functions .......................................................................................................................................... none, test, reset, device deactivated

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

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

Digital Outputs (Q1, Q2)

Number ...................................................................................................................................................................................................... 2

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

Functions ................................................................ off, connection fault, Alarm L1, Alarm L2, Alarm L3, device fault, common alarm

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

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

Switching elements

Number of switching elements.............................................................................................................................. 2 changeover contacts

Operating mode.......................................................................................................................................... N/C operation/N/O operation

Contact 11-12-14 ................................................... off, connection fault, Alarm L1, Alarm L2, Alarm L3, device fault, common alarm

Contact 21-22-24 ................................................... off, connection fault, Alarm L1, Alarm L2, Alarm L3, device fault, common 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

ronment/EMC

Envi

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

EMC
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 ............................................................................

f

Multiple conductor,

lexible with TWIN ferrule with plastic sleeve ..................................................................................0.5…1.5 mm²

............................. 0.25…2.5 mm²

4)

45

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Technical dataTechnical data

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

1)

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.

2)

Indication limited outside the temperature range -25…+55 °C.

3)

Us [Volt] = supply voltage ISOMETER®

4)

This is a class A product. In a domestic environment, this product may cause radio interference. In this case, the user may be

required to take corrective actions.

5) 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.

15.2 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

5)

46

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

15.3 Ordering details

Technical dataTechnical data

Typ e

isoNAV685-D-B AC 100…240 V; 47…460 Hz B91067024

Supply voltage U

S

Art. No.

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

B91067903

Suitable system components

Description Type Art. No.

Suitable measuring instruments

**

: 28 kΩ,120 kΩ

SKMP
Current values: 0…400 A, 0…20 mA
(additonal information here)

7204-1421 B986763

9604-1421 B986764

9620-1421 B986841

**

SKMP = midscale point

47

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

16. Glossary

• BCOM Protocol for communication between Bender devices via an IP-based network.

• DHCP Dynamic Host Configuration Protocol. It is used to assign the network configuration to Clients via a server.

• 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.

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.

48

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

17. Modbus settings

Modbus settings

17.1 General information

This appendix provides a complete description of the Modbus register (protocol version 6.0)
for the ISOMETER® iso685 family of devices to facilitate access to information.

The adjustable parameters for individual keys are listed.

In general, the Registers are implemented as Modbus read-only register (RO = read only).
An exception is the DO control register, which only has a write function (WO = write only).
The ISOMETER® iso685 device family supports 4-digit addressing and the following Mo­dbus functions:

4. Holding registers for reading values

(Read Holding Register; function code 0x03)

5. Registers for device programming

(Preset Multiple Registers; function code 0x10)

For the complete Modbus protocol specification, visit
http://www.modbus.org.

17.2 Data access by means of Modbus/TCP-Protokoll

Requests to the iso685 Modbus/TCP-Server are carried out using the Function code FC4
(read input registers). The server generates a function-related response and sends it to
the Modbus client.

Maximum of Modbus TCP requests per second: 100/s.

17.2.1 Exception code

If a request cannot be answered for whatever reason, the server sends a so-called excep­tion code to limit possible errors.

Exception-Code Description

0x01 Invalid function
0x02 Invalid data access
0x03 Invalid data value
0x04 Slave device error
0x05 Acceptance confirmed (response is delayed)
0x06 Request not accepted (repeat request if necessary)
0x08 Memory: Parity error
0x0A Gateway path not available
0x0B Gateway Error

17.2.2 Modbus request

By means of the function code FC3, the required information, in Words, can be read from
the ISOMETER® iso685 input registers. To enable this, the start address and the number of
registers to be read must be specified.

Example:
The insulation value should be read from the input register with a start address of 0x2000.

49

Byte Name Example

Byte 0,1 Transaction identifier 0x0000
Byte 2,3 Protocol identifier 0x0000
Byte 4,5 Length field 0x0006
Byte 6 Unit identifier BCOM device address
Byte 7 Modbus function code 0x03

Register address defined in “Mod-

Byte 8,9

Byte 10,11 Number of Words 0x0002

bus register assignment” on page 520x2000

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Modbus settingsModbus settings

17.2.3 Modbus response

The response consists of 2 bytes per register. The byte sequence is defined with the Most
Significant Bit (MSB) first.

Byte Name Example

…… …
Byte 7 Modbus function code 0x03
Byte 8 Byte count 0x04
Byte 9,10 Value in Register 0 0x1234 (fictitous value)
Byte 11,12 Value in Register 1 0x2345 (fictitous value)

17.2.4 Structure of exception code

Byte Name Example

…… …
Byte 7 Modbus function code 0x83
Byte 8 Exception code 0x01 or 0x02

17.3 Measuring value information

17.3.1 High-byte test status

Value D escr ipti on

0No test
1 Internal test
2External test

17.3.2 Low-byte alarm status

Value D escr ipti on

0 No alarm
1 Pre-warning
2Fault
3 Reserved
4 Warning
5Alarm

17.3.3 High-byte range

Value D escr ipti on

0=
1<
2>
3Invalid

50

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Modbus settings

17.3.4 Low-byte unit

Value D escr ipti on

0Invalid
1None
2Ohm
3Ampere
4Volt
5Percent
6Hertz
7Baud
8 Farad
9Henry
10 Degree Celsius
11 Degree Fahrenheit
12 Second
13 Minute
14 Hour
15 Day
16 Month
17 Watt
18 var
19 VA
20 Wh
21 varh
22 Vah
23 Degree
24 Hertz per second

51

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Modbus settings

17.4 Modbus register assignment

Register address
(hexadecimal)

Device information

0x510 1296 Device model 32 String UTF 8 RO
0x520 1312 Article number 32 String UTF 8 RO
0x530 1328 Serial number 32 String UTF 8 RO
0x540 1344 Manufacturer 96 String UTF 8 RO

0x570 1392 D-number Interface 2 Uint16 RO

0x571 1393

0x578 1400

0x579 1401

Measuring values

0x1010 4112 Channel number (1)

0x1011 4113 Insulation value 4 Float RO Insulation value 

0x1013 4115 Test and alarm status 2 Uint16 RO

0x1014 4116 Range and unit 2 Uint16 RO

0x1015 - 0x1018 4117 - 4120 Internal use RO

0x1019 - 0x101F 4121-4127 0 2 Uint16 RO
0x1020 4128 Channel number (2) 2 Uint16 RO
0x1021 4129 Insulation value 4 Float RO Insulation value 
0x1022 - 0x102F 4131-4143 See previous channel RO

Register
address
(decimal)

Description

Software-Version
interface

D-number measuring
technique

Software version
measuring technique

Num­ber

2Uint16RO

2Uint16RO

2Uint16RO

num­ber

Data type Mode Comment

Uint16 RO

Range Unit

Software number of the
interface unit

Software number of the
measuring technique

High-byte test, Low-byte alarm status (see
page 50)

High-byte range, Low-byte unit (see
page 50)

Must be read.
Values are only relevant for
internal use.

52

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Modbus settings

Register address
(hexadecimal)

0x1030 4144 Channel number (3) 2 Uint16 RO
0x1031 4145 Leakage capacitance 4 Float RO F
0x1033 - 0x103F 4147-4159 See previous channel RO
0x1040 4160 Channel number (4) 2 Uint16 RO

0x1041 4161 System connection 4 Float RO

0x1043 - 0x104F 4163-4175 See previous channel RO
0x1050 4176 Channel number (4) 2 Uint16 RO

0x1051 4177 Connection to earth 4 Float RO

0x1053 - 0x105F 4179-4191 See previous channel RO
0x1060 4192 Channel number (5) 2 Uint16 RO

0x1061 4193 Device error 4 Float RO

0x1063 - 0x106F 4195-4207 See previous channel RO

Register
address
(decimal)

Description

Num­ber

Data type Mode Comment

0 = O.K.
101 = Error

0 = O.K.
101 = Error

Device error number
(e.g. 750 -> 7.50 Communication CAN)

Range Unit

V

V

V

53

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Modbus settings

Register address
(hexadecimal)

//ReadOnly

0x2000u 8192 Insulation vaue 1 4 Float RO 
0x2002u 8194 Insulation vaue 2 4 Float RO 

0x2004u 8196 Insulation vaue 3 4 Float RO

0x2018 8216 System connection 4 Float RO

0x201A 8218 Connection to earth 4 Float RO

0x201C 8220 Device error 4 Float RO

0x202A 8234

0x2FFEu 12286 Actual IP Address 4 UInt32 RO

//IP-Configuration

0x3000u 12288 DHCP on/off 2 Uint16 R/W

0x3001u 12289 IP Address 4 Uint32 R/W

0x3003u 12291 Standard Gateway 4 Uint32 R/W

Register
address
(decimal)

Description

Duration of measuring
pulse

Num­ber

4Float RO

Data type Mode Comment

0 = O.K.
101 = Error

0 = O.K.
101 = Error

Device error number
(e.g. 750 -> 7.50 Communication CAN)

0 % = Measuring pulse has switched
100 % = Measuring pulse just before swit­ching

Currently used IP address
aaa.bbb.ccc.ddd => aaa*256³
+ bbb*256²+ ccc*256 + ddd

1 = DHCP on
2 = DHCP off

Configured IP address (used when DHCP =
off)
aaa.bbb.ccc.ddd =>
aaa*256³+ bbb*256² +
ccc*256 + ddd

Configured gateway (used when DHCP =
off)
aaa.bbb.ccc.ddd =>
aaa*256³+ bbb*256² +
ccc*256 + ddd

Range Unit

1…2

0…

4.294.967.295

0…

4.294.967.295



%

%

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isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Modbus settings

Register address
(hexadecimal)

0x3005u 12293 Subnet mask 2 Uint16 R/W

//ModbusTCP Mode

0x3006u 12294 Modbus TCP on/off 2 Uint16 R/W

0x3007u 12295

//ISOnet

0x3008u 12296 ISOnet 2 Uint16 R/W

0x3009u 12297

Register
address
(decimal)

Description

Writing to registers
on/off

Number of isoNet
subscribers via BCOM

Num­ber

2Uint16R/W

2Uint16R/W 2…5

Data type Mode Comment

Configured subnet mask (used when DHCP
= off)
Number of leading “1“ s in the binary sub­net mask
e.g. 6 =>

11111100.00000000.0000000

0.00000000 = 252.0.0.0

1 = Port 502 (ModbusTCP) on
2 = Port 502 (ModbusTCP) off

1 = Writing parameters on
2= Writing parameters off

1 = off
2 = ISOnet via BCOM

Range Unit

1…32

1…2

1…2

1…2

//BCOM

0x300Au 12298 BCOM system name 16 String UTF 8 R/W BCOM system name A-Z0-9_

0x3012u 12306

0x3013u 12307 Device address 4 Float R/W 1…255
0x3014u 12308 Message timeout 4 Float R/W BCOM message timeout 0.1…10 s

0x3016u 12310 Repeat interval 2 Uint16 R/W

0x3019u 12313 DNS server IP 4 Uint32 R/W

0x301Bu 12315 DNS domain 250 String UTF 8 R/W DNS domain a-z0-9\.\-

55

BCOM subsystem
address

2 Uint16 R/W BCOM device address 1…255

Time interval in which a BCOM messages is
sent from a device to the Gateway at the
latest

IP address of the DNS server
aaa.bbb.ccc.ddd => aaa*256³
+ bbb*256² + ccc*256 + ddd

0…65.535 s

0…

4.294.967.295

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Modbus settings

Register address
(hexadecimal)

//Time

0x3098u 12440 Time 4 Unix Time R/W
0x309Au 12442 0 4 0 R
0x309Cu 12444 Time zone 4 Float R/W Time zone offset -12…13 h

0x309Eu 12446 NTP on/off 2 Uint16 R/W

0x309Fu 12447 NTP server IP 4 Uint32 R/W

0x30A1u 12449 Date format 2 Uint16 R/W

0x30A2u 12450 Summertime 2 Uint16 R/W

0x30A3u 12451 Time format 2 Uint16 R/W

//BMS

0x30A4u 12452 BMS address 2 Uint16 R/W BMS address 1…90

Register
address
(decimal)

Description

Num­ber

Data type Mode Comment

1 = NTP on
0 = NTP 0ff

IP address of the NTP server
aaa.bbb.ccc.ddd => aaa*256³
+ bbb*256² + ccc*256 + ddd

1 = d.m.y
2 = m.d.y

1 = off
2 = DST
3 = CEST

1 = 12 h
2 = 24 h

Range Unit

1…2

0…

4.294.967.295

1…2

1…3

1…2

//DigitalInFunctions

0x30A5u 12453

0x30A6u 12454

0x30A7u 12455

0x30A9u 12457

56

Digital Input 1
Func tion

Digital Input 1
Mode

Digital Input 1
T(on)

Digital Input 1
T(off)

1 = Off
2 = Test

2Uint16R/W

2Uint16R/W

4 Float R/W ON delay because of debounce 0.1…300 s

4 Float R/W OFF delay because of debounce 0.1…300 s

3 = Reset
4 = Deactivate device
5 = Start initial measuring

1 = active high
2 = active low

1…5

1…2

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Modbus settings

Register address
(hexadecimal)

0x30ABu 12459

0x30ACu 12460

0x30ADu 12461

0x30AFu 12463

0x30B1u 12465

0x30B2u 12466

0x30B3u 12467

0x30B5u 12469

//DigitalOutFunctions

0x30B7u 12471

0x30B8u 12472

0x30B9u 12473

0x30BAu 12474

0x30BBu 12475

Register
address
(decimal)

Description

Digital Input 2
Func tion

Digital Input 2
Mode

Digital Input 2
T(on)

Digital Input 2
T(off)

Digital Input 3
Func tion

Digital Input 3
Mode

Digital Input 3
T(on)

Digital Input 3
T(off)

Digital Output 1
Function 1

Digital Output 1
Function 2

Digital Output 1
Function 3

Digital Output 1
Mode

Digital Output 1
Tes t

Num­ber

2 Uint16 R/W see 0x30A5u - 0x30A9u 1…5

2 Uint16 R/W see 0x30A5u - 0x30A9u 1…2

4 Float R/W see 0x30A5u - 0x30A9u 0.1…300 s

4 Float R/W see 0x30A5u - 0x30A9u 0.1…300 s

2 Uint16 R/W see 0x30A5u - 0x30A9u 1…5

2 Uint16 R/W see 0x30A5u - 0x30A9u 1…2

4 Float R/W see 0x30A5u - 0x30A9u 0.1…300 s

4 Float R/W see 0x30A5u - 0x30A9u 0.1…300 s

2Uint16R/W

2Uint16R/Wsee 0x30B7u 1…7

2Uint16R/Wsee 0x30B7u 1…7

2Uint16R/W

2Uint16R/W

Data type Mode Comment

1 = off
2 = Alarm L1
3 = Alarm L2
4 = Alarm L3
5 = Connection fault
6 = Device error
7 = Device inactive

1 = Passive
2 = Active

1 = Test on
2 = Test off

Range Unit

1…7

1…2

1…2

57

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Modbus settings

Register address
(hexadecimal)

0x30BCu 12476

0x30BDu 12477

0x30BEu 12478

0x30BFu 12479

0x30C0u 12480

//BuzzerFunctions

0x30C5u 12485 Summer Function 1 2 Uint16 R/W see 0x30B7u 1…7
0x30C6u 12486 Summer Function 2 2 Uint16 R/W see 0x30B7u 1…7
0x30C7u 12487 Summer Function 3 2 Uint16 R/W see 0x30B7u 1…7

0x30C8u 12488 Summer Test 2 Uint16 R/W

//RelayOutFunctions

0x30C9u 12489 Relay 1 Test 2 Uint16 R/W

0x30CAu 12490 Relay 1 Mode 2 Uint16 R/W

0x30CBu 12491 Relay 1 Function 1 2 Uint16 R/W see 0x30B7u 1…7
0x30CCu 12492 Relay 1 Function 2 2 Uint16 R/W see 0x30B7u 1…7
0x30CDu 12493 Relay 1 Function 3 2 Uint16 R/W see 0x30B7u 1…7

0x30CEu 12494 Relay 2 Test 2 Uint16 R/W

0x30CFu 12495 Relay 2 Mode 2 Uint16 R/W

0x30D0u 12496 Relay 2 Function 1 2 Uint16 R/W see 0x30B7u 1…7
0x30D1u 12497 Relay 2 Function 2 2 Uint16 R/W see 0x30B7u 1…7

Register
address
(decimal)

Description

Digital Output 2
Function 1

Digital Output 2
Function 2

Digital Output 2
Function 3

Digital Output 2
Mode

Digital Output 2
Tes t

Num­ber

2 Uint16 R/W see 0x30B7u - 0x30BBu 1…7

2 Uint16 R/W see 0x30B7u - 0x30BBu 1…7

2 Uint16 R/W see 0x30B7u - 0x30BBu 1…7

2 Uint16 R/W see 0x30B7u - 0x30BBu 1…2

2 Uint16 R/W see 0x30B7u - 0x30BBu 1…2

Data type Mode Comment

1 = Test on
2 = Test off

1 = Test on
2 = Test off

1 = N/O
2 = N/C

1 = Test on
2 = Test off

1 = N/O
2 = N/C

Range Unit

1…2

1…2

1…2

1…2

1…2

58

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Modbus settings

Register address
(hexadecimal)

0x30D2u 12498 Relay 2 Function 3 2 Uint16 R/W see 0x30B7u 1…7

//InsulationAlarm

0x30D3u 12499 Response value 1 4 Uint32 R/W

0x30D7u 12503

0x30D8u 12504 Profiles 2 Uint16 R/W 1 = Offline 1

0x30D9u 12505 Coupling monitoring 2 Uint16 R/W 1 = Coupling monitoring off 1

0x30DBu 12507 Fault memory 2 Uint16 R/W

0x30DCu 12508 Start-up delay 2 Uint16 R/W 0…120 s

0x30DDu 12509

Register
address
(decimal)

Description

Type of mains supply
system

Activate/deactivate
device

Num­ber

2 Uint16 R/W 1 = 3AC 1

2Uint16R/W

Data type Mode Comment

1 = Fault memory on
2 = Fault memory off

1 = Activates device
2 = Deactivates device

Range Unit

1,000…
10,000,000

1…2

1…2



59

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Index

Index

A

Accessories 47
Alarm

Alarm 1 11
Alarm settings 29
Reset alarm message 33

B

BCOM 37, 48
Button

DATA 14
ESC 14
Info 14
MENU 14
OK 14
RESET 14
TEST 14

Buttons 14

C

Characteristic curves 41
Commissioning 22

Initial commissioning 22

Recommissioning 23
Communication interfaces 37
Connection

3(N)AC system 18

Connection conditions 16

Connections and panel 13

Ethernet interface 20

Relay 1 interface (11 12 14) 20

Relay 2 interface (21 22 24) 21

Supply voltage 19

X1 interface 19
Coupling device 41

Coupling monitoring 29

D

Data - isoGraph 37
Date 34

Setting the date 33
Device buttons 14
DHCP 34, 48
Diagrams 41
Display 14, 23

Data - isoGraph 37

Fault display (active) 23

Fault display (inactive) 24

Fault memory 25

History memory 25

Limit values for R(an) 23

Signal quality of the measurement 23

Standard display 23

E

Ethernet interface 20

F

Features 10
Functional description

iso685-D 10

H

Hazards when handling the device 8
History memory 25

I

Initial measurement 26, 33
Inputs 30
Installation

DIN rail mounting 16

60

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Index Index

Screw mounting 15

Insulation resistance

Activate/deactivate measurement 29
Intended use 9
Interfaces 11, 34

BCOM 35, 37

Ethernet 34, 37

Modbus TCP 35

Modbus/TCP 37

Web server 38

X1 19

L

Language 33
LEDs

ALARM 1 14

ALARM 2 14

ON 14

SERVICE 14

M

Measured values 33
Menu 27
Minimum current rectifier 17
Minimum distance 16
Modbus TCP 48
Modbus/TCP 37

N

Nominal system voltage 44
Nominal voltage 16
Normal operation 23

O

Operating mode 30
Operation

Buttons 22

Commissioning 17, 22
Ordering information 46
Output 31

P

Password 35
Product description 10
Protective earth conductor (PE) 16

R

Response time

Profile power circuits 41

Relative uncertainty 41
Response value 44

S

Safety instructions 8
Self test 11
Service menu 36
Set language 33
Setting the time 33, 34
Settings

Alarm 29

Basic settings 33

Coupling devices 41

Coupling monitoring 29

Inputs 30

Language 33

Manual test 33

Measured values 33

Profile 29
Sicherheitshinweise 52
Signal quality of the measurement 23
Start-up delay 29

61

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

Index Index

System leakage capacitance 10, 29

T

Technical data 44

W

Web server 38, 48

62

isoNAV685-D-B_D00264_03_M_XXEN/06.2017

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.: [phone]
Fax: [phone]

Email: [e-mail]
Web: www.bender.de

Tel.: [phone]
Fax: [phone]

Email: [e-mail]
Web: http://www.bender.de

BENDER Group

Fotos: Bender Archiv und bendersystembau Archiv.