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EN
Manual
ISOMETER®
iso685–D–B
iso685W–D–B
iso685–S–B
iso685W–S–B
Insulation Monitoring Device
for IT AC systems with galvanically connected
rectifiers and inverters and for IT DC systems
Software version: D440 V 1.25 | D439 V 1.25
iso685-x-B_D00177_07_M_XXEN/07.2019
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PLEASE READ THIS MANUAL AND ANY ACCOMPANYING DOCUMENTS CAREFULLY
AND KEEP THEM IN A SECURE PLACE FOR FUTURE REFERENCE.
Bender GmbH & Co. KG
P.O. Box 1161 • 35301 Gruenberg • Germany
Londorfer Straße 65 • 35305 Gruenberg • Germany
Tel.: +49 6401 807-0
Fax: +49 6401 807-259
Email: [email protected]
Web: www.bender.de
Customer service:
Service hotline: 0700-BenderHelp (Telephone and Fax)
Carl-Benz-Straße 8 • 35305 Gruenberg • Germany
Tel.:+49 6401 807-760
Fax:+49 6401 807-629
Email:[email protected]
© Bender GmbH & Co. KG
All rights reserved.
Reproduction only with permission
of the publisher.
Subject to change.
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Table of contents
1. Important information ................................................................................6
1.1 How to use this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Technical support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2.1 End customer support and advice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2.2 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2.3 Customer service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Training courses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Delivery conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.5 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.6 Warranty and liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.7 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3. Function .........................................................................................................9
3.1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2.1 General product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2.2 Special ISOMETER® characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3 Function description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.5 Self test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4. Device overview .........................................................................................11
4.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Device variants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3 Connection and panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.4 Display elements and device buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.4.1 Display elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.4.2 device buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.5 Operating and navigating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.5.1 Menu selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4.5.2 List selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4.5.3 Parameter selection and value adjustment . . . . . . . . . . . . . . . . . . . . . . . . .14
4.5.4 Character input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
5. Mounting ..................................................................................................... 15
5.1 Common information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Mounting spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
5.3 Screw mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
5.4 DIN rail mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
6. Connection .................................................................................................. 17
6.1 Connection requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.2 Connection to a 3(N)AC system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
6.3 Connection to an AC system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
6.4 Connection to a DC system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
6.5 Connection to the supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
6.6 Connection to the X1 interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
6.7 Connection to the ethernet interface ETH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
6.8 Connection to relay interfaces 1 und 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
6.9 Position the terminal covers and click them into place . . . . . . . . . . . . . . . . . 21
7. Commissioning ..........................................................................................22
7.1 General initial commissioning process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
7.2 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.2.1 Setting language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
7.2.2 Setting date and time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
7.2.3 Setting system type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
7.2.4 Select a coupling device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
7.2.5 Setting profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
7.2.6 Setting response value Ran1 for alarm 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
7.2.7 Setting response value Ran2 for alarm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
7.3 Recommissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
7.4 Configuring password protection for the ISOMETER® iso685. . . . . . . . . . . .24
8. Display .........................................................................................................25
8.1 Standard display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
8.2 Fault display (active) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
8.3 Fault display (inactive) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
8.4 Acknowledging a fault message. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
8.5 History memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
8.6 Data-isoGraph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
8.7 Initial measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
8.8 ISOnet operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
8.9 ISOloop operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
8.10 Automatic test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
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Table of contents
9. Settings ........................................................................................................29
9.1 Menustructure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
9.2 Settings in the device menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.2 (1.0) Alarm settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.2 (1.1) Insulation alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.2 (1.1.1) Alarm 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.2 (1.1.2) Alarm 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.2 (1.1.3) Fault memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.2 (1.2) DC alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.2 (1.2.1) Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.2 (1.2.2) U(DC-E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.2 (1.3) Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2 (1.4) System type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2 (1.5) Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2 (1.6) ISOnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2 (1.6.1) ISOnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2 (1.6.2) Number of devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2 (1.7) ISOloop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2 (1.7.1) ISOloop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2 (1.7.2) Measured value subscription . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2 (1.8) (Start) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2 (1.9) Coupling monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2 (1.10) Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2 (1.10.1) Digital 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9.2 (1.10.2) Digital 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9.2 (1.10.3) Digital 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9.2 (1.11) Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9.2 (1.11.1) Relay 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9.2 (1.11.2) Relais 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.2 (1.11.3) Digital 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.2 (1.11.4) Digital 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.2 (1.11.5) Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.2 (1.11.6) Analogue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.2 (2.0) Data measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2 (3.0) Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2 (3.1) TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2 (3.2) Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2 (3.3) Start initial measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2 (3.4) Device: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2 (3.5) ISOnet priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2 (4.0) History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2 (5.0) Device settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
9.2 (5.1) Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
9.2 (5.2) Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
9.2 (5.2.1) Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2 (5.2.2) Format (time). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2 (5.2.3) Summer time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.2 (5.2.4) Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.2 (5.2.5) Format (date). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.2 (5.2.6) NTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.2 (5.2.7) NTP server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.2 (5.2.8) UTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.2 (5.3) Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
9.2 (5.3.1) Write access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.2 (5.3.2) Ethernet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.2 (5.3.3) BCOM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.2 (5.3.4) Modbus/TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.2 (5.3.5) RS-485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.2 (5.3.6) Modbus RTU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.2 (5.4) Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
9.2 (5.4.1) Brightness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.2 (5.4.2) Automatic dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.2 (5.5) Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
9.2 (5.5.1) Password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.2 (5.5.2) Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.2 (5.6) Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.2 (5.7) Data backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
9.2 (5.8) Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
9.2 (5.9) Factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
9.2 (5.10) Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
9.2 (5.10.1) Update via interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.2 (5.10.2) Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.2 (5.11) Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.2 (6.0) Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
10. Device communication ...........................................................................40
10.1 Ethernet interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
10.2 BCOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
10.3 Modbus/TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
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Table of contents
10.4 Web server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
10.4.1 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
10.4.2 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
10.4.3 User interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
10.4.4 Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
10.4.5 Parameter changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
10.4.6 Changing parameters in the web browser . . . . . . . . . . . . . . . . . . . . . . . . .43
10.4.7 Changing parameters in the device menu when
the web browser is open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
10.4.8 Write access for parameter changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
10.5 BS bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
10.5.1 Master-slave principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
10.5.2 Addresses and address ranges on the BS bus . . . . . . . . . . . . . . . . . . . . . .44
10.5.3 RS-485 specifications/cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
10.5.4 Cable routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
10.6 Modbus RTU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
10.7 isoData protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
10.7.1 isoData-protocol table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
11. Special functions for coupled IT systems ............................................49
11.1 Particularities when monitoring coupled IT systems . . . . . . . . . . . . . . . . . . 49
11.2 System isolation via digital input
with two coupled systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
11.3 System isolation via ISOnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
11.3.1 Systempictures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
11.3.2 Configuration and function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
11.3.3 ISOnet priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
11.4 ISOloop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
11.4.1 Preparing the devices in an interconnection . . . . . . . . . . . . . . . . . . . . . . .51
11.4.2 Creating groups with the BCOM Group Manager . . . . . . . . . . . . . . . . . . . 52
11.4.3 Configuration and function on the ISOMETER® . . . . . . . . . . . . . . . . . . . . .53
12. Coupling devices ......................................................................................54
12.1 Connection using the AGH150W-4(DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
12.2 Connection using the AGH150W-4(3(N)AC) . . . . . . . . . . . . . . . . . . . . . . . . . . 54
12.3 Connection using the AGH520S (3AC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
12.4 Connection using the AGH520S (3(N)AC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
12.5 Connection using the AGH204S-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
12.6 Connection using the AGH676S-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
13. Alarm messages .......................................................................................57
13.1 Measured value alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
13.2 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
13.3 ISOnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
13.4 ISOloop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
14. Technical data .......................................................................................... 60
14.1 Device profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
14.2 Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
14.2.1 Response time profile power circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
14.2.2 Response time control circuits profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
14.2.3 Response time generator profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
14.2.4 Response time high capacitance profile . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
14.2.5 Response time inverter > 10 Hz profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
14.2.6 Response time inverter < 10 Hz profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
14.2.7 Response time DC alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
14.2.8 Relative uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
14.3 Factory settings iso685-x-B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
14.4 Tabular data iso685-x-B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
14.5 Standards and certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
14.6 Ordering details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
14.6.1 Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
14.6.2 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
14.6.3 Suitable system components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
15. Glossary .....................................................................................................68
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1. Important information
Important information
1.1 How to use this manual
This manual is intended for qualified personnel working in electrical
engineering and electronics!
Read the manual before you begin to mount, connect, and commission
the unit. Always keep the manual within easy reach for future reference
following commissioning.
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.
DANGER
This signal word indicates a medium risk of danger that can lead to
death or serious injury if not avoided.
WARNING
This signal word indicates a low-level risk that can result in minor or
moderate injury or damage to property if not avoided.
CAUTION
This symbol denotes information intended to assist the user in making
optimum use of the product.
1.2 Technical support
1.2.1 End customer support and advice
Technical support by phone or e-mail for all Bender products
• Questions concerning specific customer applications
• Commissioning
• Troubleshooting
Telephone: +49 6401 807-760 (365 Tage von 07:00 - 20:00 Uhr [MEZ/UTC +1])
Fax: +49 6401 807-259
0700BenderHelp (Tel. and Fax in Germany only)
1.2.2 Repair
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
• Extended guarantee, in-house repair service, replacement devices at no extra cost
Telephone: +49 6401 807-780* (technical issues)
+49 6401 807-784*, -785* (sales)
Please send the devices for repair to the following address:
Bender GmbH, Repair-Service,
Londorfer Straße 65,
35305 Grünberg
1.2.3 Customer service
On-site service for all Bender products
• Commissioning, parameter setting, maintenance, troubleshooting
• Analysis of the electrical installation in the building (power quality test, EMC test,
thermography)
• Training courses for customers
Telephone: +49 6401 807-752*, -762* (technical issues)/
+49 6401 807-753* (sales)
* Mo-Thu 07:00 a.m. - 16:00 p.m. , Fr 07:00 a.m. - 13:00 p.m.
6
iso685-x-B_D00177_07_M_XXEN/07.2019
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Important informationImportant information
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 Manufacturers' Association) also applies. Amending the “General Conditions
for the supply of Products and Services of the Electrical and Electronics Industry” (GL)*
Sale and delivery conditions can be obtained from Bender in printed or electronic format.
1.5 Storage
The devices must only be stored in areas where they are protected from dust, damp, and
spray and dripping water, and in which the specified storage temperatures can be
ensured.
This operating manual, especially the safety instructions, must be observed by all personnel working on the device. Furthermore, the rules and regulations that apply for accident
prevention at the place of use must be observed.
1.7 Disposal
Abide by the national regulations and laws governing the disposal of this device. Ask
your supplier if you are not sure how to dispose of the old equipment.
The directive on waste electrical and electronic equipment (WEEE directive) and the directive on the restriction of certain hazardous substances in electrical and electronic
equipment (RoHS directive) apply in the European Community. In Germany, these policies are implemented through the "Electrical and Electronic Equipment Act" (ElektroG).
According to this, the following applies:
• Electrical and electronic equipment are not part of household waste.
• Batteries and accumulators are not part of household waste and must be disposed
of in accordance with the regulations.
• Old electrical and electronic equipment from users other than private households
which was introduced to the market after 13 August 2005 must be taken back by the
manufacturer and disposed of properly.
For more information on the disposal of Bender devices, refer to our homepage at
www.bender-de.com -> Service & Support.
1.6 Warranty and liability
Warranty and liability claims in the event of injury to persons or damage to property are
excluded if they can be attributed to one or more of the following causes:
• Improper use of the device.
• Incorrect mounting, commissioning, operation and maintenance of the device.
• Failure to observe the instructions in this operating manual regarding transport,
commissioning, operation and maintenance of the device.
• Unauthorised changes to the device made by parties other than the manufacturer.
• Non-observance of technical data.
• Repairs carried out incorrectly and the use of replacement parts or accessories not
approved by the manufacturer.
• Catastrophes caused by external influences and force majeure.
• Mounting and installation with device combinations not recommended by the manufacturer.
7
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2. Safety instructions
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".
Read the operating manual before starting to install, connect and commission the device. After successful commissioning, keep the manual
within easy reach for future reference.
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:
• A fatal electric shock
DANGER
• 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.
2.3 Device-specific safety information
Installation inside a control cabinet
If the ISOMETER® is installed inside a control cabinet, the insulation fault
message must be audible and/or visible to attract attention.
IT systems with several ISOMETER®s
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. For IT systems coupled via diodes or capacitances a central control of the different ISOMETER®s is required.
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.
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.
2.4 Intended use
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.
8
The ISOMETER® iso685… monitors the insulation resistance of unearthed AC/DC main
circuits (IT systems) with nominal system voltages of AC 0…690 V or DC 0…1000 V.
DC components existing in AC/DC systems do not influence the operating characteristics.
A separate supply voltage allows de-energised systems to be monitored too. The maximum permissible system leakage capacitance is 0…1000 µF, depending on the profile.
Intended use also implies:
• Reading and observing all information in the operating manual
• Compliance with test intervals
In order to meet the requirements of applicable standards, customised parameter set-
tings 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.
iso685-x-B_D00177_07_M_XXEN/07.2019
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3. Function
Function
3.1 Features
• ISOMETER® for IT AC systems with galvanically connected rectifiers or inverters and
for IT DC systems (IT = unearthed systems)
• Automatic adaptation to the existing system leakage capacitance
• Combination of
• Two separately adjustable response value ranges of 1 k…10 M
• High-resolution graphical LC display
• Connection monitoring (monitoring of the measuring lines)
• Automatic device self test
• Graphical representation of the insulation resistance over time (isoGraph)
• History memory with real-time clock (buffer for three days) for storing 1023 alarm
messages with date and time
• Current or voltage output 0(4)…20 mA, 0…400 A, 0…10 V, 2…10 V (galvanically
separated), which is analogous to the measured insulation value of the system
• Freely programmable digital inputs and outputs
• Remote setting via the Internet or Intranet
(Webserver/Option: COMTRAXX® gateway)
• Remote diagnosis via the Internet (made available by Bender Service only)
• isoData: Continuous uninterrupted data transmission
• RS-485/BS (Bender sensor bus) for data exchange with other Bender devices via
Modbus RTU protocol
• BCOM, Modbus TCP und web server
• ISOnet: Internal separation of the ISOMETER® from the IT system
to be monitored (e.g. if several IT systems are interconnected)
• ISOnet priority: Permanent priority of a device within the network
• ISOloop: Special function for ring systems (all systems are coupled)
AMP
PLUS
and other profile-specific measurement methods
3.2 Product description
3.2.1 General product description
The ISOMETER® is an insulation monitoring device for IT systems in accordance with
IEC 61557-8.
It is universally applicable in AC, 3(N)AC, AC/DC and DC systems. AC systems may include
extensive DC-supplied loads (such as rectifiers, inverters, variable-speed drives).
The ISOMETER® iso685–S–x is the sensor variant from the iso685 device family. The only
difference between this variant and the ISOMETER® isoHR685-D-B is that it does not have
a display. The ISOMETER® iso685–S–P must be used in combination with a front panel
through which it is operated. The operation of the front panel is equal to the operation of
the ISOMETER® with an integrated display, which is described in this manual.
Only the sensor variant (i.e. ISOMETER® iso685–S–P) can be connected to
the front panel. Connection to the display variant (i.e ISOMETER® iso685–
D–P) is not possible.
Hereafter, the ISOMETER®s with integrated display are described. This description is similar to the combination of ISOMETER® sensor variants and the front panel FP200. The
devices to which this manual applies will be referred to as ISOMETER®s hereafter.
3.3 Function description
The insulation monitoring device continuously monitors the entire insulation resistance
of an IT system during operation and triggers an alarm when the value falls below a preset response value. To obtain a measurement the device has to be connected between
the IT system (unearthed system) and the protective earth conductor (PE). A measuring
current in the µA range is superimposed onto the system which is recorded and evaluated by a microprocessor-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 password protected to prevent
unauthorised changes.
To ensure proper functioning of connection monitoring, the device requires the setting
of the system type 3AC, AC or DC and the required use of the appropriate terminals L1/+,
L2, L3/-.
3.2.2 Special ISOMETER® characteristics
The ISOMETER® iso685–D–x belongs to the iso685 device family and features an integrated display. This manual applies in full to this ISOMETER®.
9
iso685-x-B_D00177_07_M_XXEN/07.2019
Page 10
FunctionFunction
Test successful
Test unsuccessful
Test not available
(e.g. incorrect device settings).
Test is being carried out.
Measurement
technique
Coupling
Connection
TEST
The insulation monitoring device iso685… is able to measure the insulation resistance reliably and precisely in all common IT systems (unearthed systems). Due to various applications, system types, operating conditions, application of variable-speed drives, high
system leakage capacitances etc., the measurement technique must be able to meet varying requirements in order to ensure an optimised response time and relative uncertainty. Therefore different measuring profiles can be selected with which the device can
optimally adjusted.
If the preset response value falls below the value of Alarm 1 and/or Alarm 2, the associated alarm relays switch, the LEDs ALARM 1 or ALARM 2 light and the measured value is
shown on the LC display (in case of insulation faults in DC systems, a trend graph for the
faulty conductor L+/L- is displayed). If the fault memory is activated, the fault message
will be stored. Pressing the RESET button resets the insulation fault message, provided
that the 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. A poor signal quality (1-2 bars) may
be an indication that the wrong measurement profile has been selected.
The ISOMETER® has an internal system isolating switch, which makes it possible to operate several ISOMETER®s in coupled IT systems. For this purpose, the ISOMETER®s are connected via an Ethernet bus. The integrated ISOnet function ensures that only one
ISOMETER® is actively measuring at a time, while the other devices are completely isolated from the system and waiting in standby mode for measuring permission.
The ISOMETER® is able to synchronise itself with other ISOMETER®s. This makes it possible
to monitor capacitive coupled IT systems without interfering with each other.
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“).
The progress of the manual self test is shown on the LC display by a bar graph. Depending
on the conditions in the IT system being monitored, the self test is completed after 15...20
seconds. The device then returns to the standard mode (measurement mode) and the actual measured value will be displayed after the measuring time has expired. The display
shows the message
Initial measurement
„Initial measurement“).
If a fault is detected during the self test, the respective LEDs of the device light (refer to
„Alarm messages“). In addition, the respective message will be indicated on the display
and a previously programmed output will provide the respective signal.
√
33 %
until the first valid value is measured (refer to
3.4 Interfaces
• Communication protocol Modbus TCP
• Communication protocol Modbus RTU
• BCOM for communication of Bender devices via Ethernet
• BS bus for communication of Bender devices (RS-485)
• isoData for recording and managing measured values
• Integrated web server for reading out measured values and setting parameters
10
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Page 11
4. Device overview
93
108
110
Device overview
4.1 Dimensions
Enclosure iso685…-device familiy – dimensions in mm
4.2 Device variants
iso685(W)-D…
isoxx685(W)-D…
iso685(W)-S…
isoxx685(W)-S…
The iso685 variant features a high-resolution graphic LC display and
operating controls for direct operation of the device functions.
It cannot be combined with an FP200.
Device version iso685-S-P features neither a display nor operating
controls. It can only be used in combination with the FP200W and is
operated via this front panel.
11
iso685-x-B_D00177_07_M_XXEN/07.2019
Page 12
Device overview
To p
10 A1/+, A2/- Connection to the power supply voltage U
s
11 L1/+ Connector for the IT system to be monitored
12 L2 Connector for the IT system to be monitored
13 L3/- Connector for the IT system to be monitored
14 KE, E Connection to PE
REMOTE
20
20 X4 REMOTE interface to connect the FP200(W) *
50 X3 Optional expansion interface for Bender products
Rear
Front
Connction bottom
Control panel
Connection top
iso685(W)-S… and isoxx685(W)-S… iso685(W)-D… and isoxx685(W)-D…
242221141211RETHX1
1918
1716
15
15 X1 Multifunctional I/O interface (see „Connection of the X1 interface“)
16 ETH (X2) Ethernet interface
17 R Switchable terminating resistor for termination of the RS-485 interface
18 11 12 14 Connector for alarm relay 1
19 21 22 24 Connector for alarm relay 2
* The connection between the iso685 device and an FP200(W) can
be interrupted and restored at any time (Plug&Play).
Bottom
4.3 Connection and panel
10
11
12
13 14
5050505050505050505050
12
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Device overviewDevice overview
4.4 Display elements and device buttons
1
6
3
4
5
4.4.1 Display elements
1 ON The "ON" LED lights when the device is turned on.
3 SERVICE
4 ALARM 1
5 ALARM 2
6Display
The "SERVICE" LED lights when there is either a device fault or a connection
fault, or when the device is in maintenance mode.
The "ALARM 1" LED lights when the insulation resistance of the IT system
falls below the set response value R
The "ALARM 2" LED lights when the insulation resistance of the IT system
falls below the set response value R
The device display shows information regarding the device and the measurements. Other information is available in chapter „Display“.
an1
an2
.
.
7
9
11
8
10
12
4.4.2 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.
10
11
12
7
MENU Opens the device menu.
8
9
ESC
RESET Resets alarms.
TEST Starts the device self test.
DATA Indicates data and values.
INFO Shows information.
OK Confirms an action or a selection.
Navigates up in a list or increases a value.
Cancels the current process or
navigates one step back in the device menu.
Navigates backwards (e.g. to the previous setting step) or
selects a parameter.
Navigates forwards (e.g. to the next setting step) or
selects a parameter.
Navigates down in a list or reduces a value.
13
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Device overviewDevice overview
Activate the menu by pressing the
"MENU" button
IT system
230 k
Ω
OK
R(an) 100kΩ/20k
Ω
Commissioning
x.6
2/1x
Please set the current
date and time.
Use the button to select menu items.
Press "ESC" to return form the respective
menu level.
An overview of the device menu can be
found in chapter .
Use the buttons and to select values
from a predefined list (menu). The present
value is indicated by a black menu item.
Confirm the value with the "OK" button.
Exit the list selection by pressing "ESC".
System type
x.6.6
• DC
o AC
o 3AC
Date
x.6.4
28.07.2016
Min.
Max.
1
12
Use the and buttons to select a parameter. The present parameter is indicated by the symbols. Values can be
changed using the and buttons. Confirm input text by pressing "OK". Exit text
input by pressing "ESC".
Use the (forward) and (backward)
buttons to select a character from the display. To enter the next character, use the
button to select the next position.
To delete a character that has been entered, use the and buttons to select
the position of the character to be deleted
and then select "del" using the and
buttons.
Confirm the entered text with "OK". Exit
the character input by pressing "ESC".
Ethernet
x.3.2
192.
ghijklmnopqrstuvwxyz
-.0123456789abcdef
4.5 Operating and navigating
4.5.1 Menu selection
4.5.2 List selection
4.5.4 Character input
4.5.3 Parameter selection and value adjustment
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5. Mounting
Mounting
5.1 Common information
Only qualified personnel are permitted to carry out the work necessary
to install, commission and run a device or system.
Read the manual before you begin to mount, connect, and commission
the unit. Always keep the manual within easy reach for future reference
following commissioning.
Danger of electrocution due to electric shock!
Touching live parts of the system carries the risk of:
DANGER
• A life threatening 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
electrical installations.
5.2 Mounting spaces
20 mm
0 mm0 mm
20 mm
15
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Page 16
MountingMounting
108
107,3
100
72
54
Ø M4
c
l
i
c
k!
cl
i
ck!
cl
i
ck!
5.3 Screw 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. Drill the mounting holes for the M4 thread according to the drilling template.
3. Fix the ISOMETER® using three M4 screws..
5.4 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. Mount the ISOMETER® onto the DIN rail.
3. Fix the ISOMETER® onto the DIN rail by pressing the mounting clips until they snap
into place
108
18
Dimensions in mm
Dimensions in mm
Mounting clips
The installation of a third mounting clip is only required for "W variants".
16
54
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6. Connection
Connection
6.1 Connection requirements
In accordance with VDE 0100, 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:
• A fatal electric shock
DANGER
DANGER
• 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!
High voltages may be present at the terminals "L1/+" to "L3/-". Direct contact with these will likely result in electrocution.
• Make sure the terminal covers are properly mounted and clicked in
before putting the device into operation.
• If the terminals "L1/+", "L2", "L3/-" of the device are connected to a live
IT system, do not disconnect terminals "KE" and "E" from the protective
conductor ("PE").
• Connect terminals "KE" and "E" individually to the protective earth conductor "PE".
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!
Make sure that only one insulation monitoring device is connected in
each conductively connected system. If several devices are connected, the
device does not function and does not signal insulation faults. This can
damage the installation.
Load currents can result in damage of property and personal injury. Therefore, do not apply any load current to the terminals. The connecting lines
"L1/+", "L2", "L3/-" to the system to be monitored must be designed as spur
lines.
Failure to connect the device as illustrated in the manual leads to deviating
technical data and function restrictions.
Check proper connection!
Prior to the 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.
Prevent measurement errors!
When a monitored AC system contains galvanically coupled DC circuits,
the following applies: An insulation fault can only be detected correctly
when the rectifier valves carry a minimum current of > 10 mA.
For UL applications:
Use 60/75 °C copper lines only!
For UL and CSA applications, the supply voltage must be protected via
5A fuses.
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ConnectionConnection
A1/+ A2/- L1/+ L2 L3/- KE E
U
S
U
n
L3
N
L2
L1
E
KE
L3/-
L2
L1/+A2/–A1/+
A1/+ A2/- L1/+ L2 L3/- KE E
U
S
U
n
L2L1L2
L1
E
KE
L3/-
L1/+A2/–A1/+
6.2 Connection to a 3(N)AC system
Risk of injury, fire and damage to property due to a short circuit!
According to DIN VDE 0100-430, devices used to protect against a short
circuit when terminals "L1/+", "L2" und "L3/-" are coupled to the IT system
WARNING
to be monitored can be omitted if the wiring is designed in such a manner
that the risk of a short circuit is reduced to a minimum. Ensure short-circuit-proof and earth-fault-proof wiring.
6.3 Connection to an AC system
Risk of injury, fire and damage to property due to a short circuit!
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
WARNING
to be monitored can be omitted if the wiring is designed in such a manner
that the risk of a short circuit is reduced to a minimum. Ensure short-circuit-proof and earth-fault-proof wiring.
18
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Page 19
ConnectionConnection
A1/+ A2/- L1/+ L2 L3/- KE E
U
S
U
n
L−
L+
*
Un > 690 V
=> F 2A
*
*
E
KE
L3/-
L1/+A2/–A1/+
A1/+ A2/- L1/+ L2 L3/- KE E
U
S
A2/–A1/+
6.4 Connection to a DC system
Risk of injury, fire and damage to property due to a short circuit!
According to DIN VDE 0100-430, devices used to protect against a short
circuit when terminals "L1/+", "L2" und "L3/-" are coupled to the IT system
WARNING
to be monitored can be omitted if the wiring is designed in such a manner
that the risk of a short circuit is reduced to a minimum. Ensure short-circuit-proof and earth-fault-proof wiring.
6.5 Connection to the supply voltage
Danger of damage to property due to faulty connections!
The device may be damaged if it is simultaneously connected to the supply voltage via the "X1" interface and via "A1/+" and "A2/-".
CAUTION
Do not connect the device simultaneously via "A1/+", "A2/-" and "X1" to
different supply voltage sources.
Supply via external voltage sources
In case of external supply (24 V) the device can be supplied via "A1+"/"A2"
– OR via "X1". In case of supply via "A1+"/"A2", make sure that +24 V are
applied to "A1/+" and that "A2/-" is connected to "GND" (ground).
External power supply units for voltage supply of the ISOMETER® via terminal X1 must meet the immunity and emission requirements of the relevant application standard. For connecting cables longer than 1 m,
shielded cables must be used.
In systems with a nominal system voltage of more than 690 V and with overvoltage category III, a fuse for the connection to the system to be monitored must be provided. * 2A fuses recommended.
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ConnectionConnection
I1 I2 I3 A B
X1
I1
I2 A BI3
Q1
Q2
M+
+
high
active
low
active
RS-485
Bus
RS-485
Bus
V
A
passive adjustable
X1
active adjustable
Currentmeter
Voltagemeter
TESTRESET
Deactiv.
Device
+24 V
I1…I3 (X1) Configurable digital inputs (e.g. test, reset, …)
A, B (X1)
Serial interface RS-485,
termination by means of a DIP switch R.
+ (X1)
Supply voltage of the inputs and outputs I, Q and M.
Electrical overload protection. Automatic shutdown in the
event of a short circuit and transient (resettable).
If the supply is via an external 24 V source, then A1/+, A2/must not be connected.
Q1, Q2 (X1) Configurable digital output
M+ (X1) Configurable analogue output (e.g. measuring instrument)
(X1)
Reference potential ground
RJ45
6.6 Connection to the X1 interface
6.7 Connection to the ethernet interface ETH
Connection with standard patch cable (RJ45/no crossover cable) to other ISOMETER®s or
interconnection of several ISOMETER®s in STAR topology via a switch.
6.8 Connection to relay interfaces 1 und 2
141211
242221
20
Relay 111 common contact 12 N/C contact 14 N/O contact
Relay 221 common contact 22 N/C contact 24 N/O contact
iso685-x-B_D00177_07_M_XXEN/07.2019
Page 21
6.9 Position the terminal covers and click them into place
c
li
c
k!
click!
c
li
c
k!
click!
Fix the terminal covers to the provided enclosure recesses until they snap into place.
ConnectionConnection
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Page 22
7. Commissioning
Language x.6.2
• Deutsch
o English
o ...
Date
x.6.4
28.07.2016
Min.
Max.
1
12
Commissioning
x.6
2/1x
Please set the current
date and time.
Commissioning
7.1 General initial commissioning process
1. Check that the ISOMETER® is properly connected to the system to be monitored.
2. Connect the supply voltage to the ISOMETER®. Adjust the device using the commissioning wizard. Afterwards, the ISOMETER® performs a self test in four steps. The
alarm relays are not checked during this test. After completion of the test, the measured insulation resistance is shown on the display. If the value exceeds the response
values indicated in the bottom 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 „Recomissioning“ .
3. Check the ISOMETER® in the system being monitored, e.g. using a suitable resistance
to earth
Observe device status!
The device is in an alarm state until initial commissioning has been completed.
After setting the response value Ran2 for alarm 2, the device starts a self test, makes the
first measurement and outputs the measured insulation resistance values of the IT system being monitored, then commissioning is completed.
Commissioning pocedure - iso685-x(-B)
7.2 Initial commissioning
Check network function!
When the device has been integrated into a network, the influence on the
network has to be checked with the device switched on and off.
Follow the instructions of the commissioning wizard on the display.
7.2.1 Setting language
The language selected here will be used in the menu and for device messages.
7.2.2 Setting date and time
Alarm messages in the history memory and the insulation resistance value over time can
only be assigned correctly to the isoGraph when date and time are set correctly.
Step
ISOMETER® commissioning
1. Connect the device according to the wiring diagram and device documentation
2. Connect the supply voltage
3. Connect the mains voltage
4. Run through commissioning wizard
5. The ISOMETER® performs a self tes
6. Execute a function test with a suitable resistance between the system and earth.
7. Remove the resistance
8. Adjust the basic settings if necessary
9. The ISOMETER® is properly connected and functions reliably
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Page 23
CommissioningCommissioning
Commissioning
x.6
5/1x
Please select the
system type
suitable for your
installation.
System type
x.6.6
• DC
o AC
o 3AC
Coupling
5.6.7
• None
o AGH150W-4
o AGH204S-AK80
o AGH204S-AK160
o AGH520S
o AGH676S-412
Comissioning
5.6
6/10
Coupling device
available? Please
choose a type.
Profiles
x.6.7
• Power circuits
o Control circuits
o Generator
o
High capacitance
o Inverter >10 Hz
o Inverter <10 Hz
Commissioning
x.6
5/1x
Please select
a profile
according to your
application.
Alarm 1
x.6.8
40 k
Ω
Min.
Max.
1 k
Ω
10 M
Ω
x.6
8/1x
Please set the
response value
for R(an1)
for alarm 1.
Alarm 1
x.6.9
10 k
Ω
Min.
Max.
1 k
Ω
10 M
Ω
Commissioning
x.6
9/1x
Please set the
response value
for R(an2)
for alarm 2.
7.2.3 Setting system type
By setting the system type, the insulation monitoring device can be optimally adapted to
the system to be monitored. The system type is essential information for the insulation
monitoring device in order to determine the insulation resistance correctly.
7.2.4 Select a coupling device
A coupling device connected to the insulation monitoring device (to increase the
nominal system voltage) must be programmed here. The measurement of the insulation
resistance takes into account the parameters of the connected coupling device. If no coupling device is available, press OK.
7.2.6 Setting response value R
for alarm 1
an1
You can set the prewarning response value here. A value of 100 Ω/V is recommended for
prewarning.
7.2.7 Setting response value R
for alarm 2
an2
You can set the prewarning response value here. A value of 50 Ω/V is recommended for
prewarning.
7.2.5 Setting profile
In order to optimally adapt the insulation monitoring device to the system to be monitored, select a profile here that suits your system. For an overview of the profiles, refer to
„Technical Data“. The "Power circuits" profile is suitable for most of the IT systems.
23
iso685-x-B_D00177_07_M_XXEN/07.2019
Page 24
7.3 Recommissioning
Password
x.5.1
0000
Min.
Max.
0
9
Password
x.5
1. Password ****
2. Status off
If the device has already been put into operation once, the self test will be carried out
shortly after connecting the supply voltage. The commissioning wizard will not restart.
You can restart the commissioning wizard using the following menu path:
Menu -> Device settings -> Commissioning
This menu can be used to modify settings made previously
.
Observe device status!
Once initial commissioning has been completed and the initial measurement has been taken, the device changes from the alarm state to normal
state by adhering to the set response values.
7.4 Configuring password protection for the ISOMETER® iso685
You can assign a password in the device menu.
1. Select Menu -> Device settings -> Password in the device menu.
2. Enable password protection at Menu -> Device settings -> Passwor -> Status by
selecting "On".
3. Set a four-digit password at Menu -> Device settings -> Password -> Password . You
can use the digits 0 to 9.
CommissioningCommissioning
24
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Page 25
8. Display
IT system
230 k
Ω
OK
R(an) 40kΩ/10k
Ω
1/4
7 kΩ7 kΩ
Insulation fault
Display
8.1 Standard display
During normal operation, the ISOMETER® displays the message "OK" and below, the currently measured insulation resistance.
The signal quality of the measurement suits the selected profile.
The better the signal quality, the faster and more exact the device can
measure.
The signal quality of the measurement does not suit the selected
profile. Select a different measurement profile.
Update period between the measuring pulses.
In the bottom line of the display, the set response values for "R(an)" are indicated. In the
example below, R
=40 kΩ und R
an1
an2
=10 kΩ.
8.2 Fault display (active)
An active fault is displayed by .
The upper part of the display turns orange and displays the fault message.
Depending on the type of fault, the LEDs "ALARM 1", "ALARM 2" or "SERVICE" are activated.
In the following example, a resistance has been detected. Since the values R
and R
been triggered.
If several fault messages have appeared, you can navigate through the faults using the
and buttons.
If the value falls below R
ditional detailed information regarding the DC offset will be displayed.
=10 kΩ are both below the set response value, „ALARM 1“ and „ALARM 2“ have
an2
in a DC system or a DC offset is detected in an AC system, ad-
an1
an1
=40 kΩ
25
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Page 26
DisplayDisplay
1/4
3x
Keypad
1 Next fault message
2 MENU selection
3 Acknowledge fault
4 Perform test measurement
5 Previous fault message
Display
6 Number of faults that have
occurred
7 Signal quality & measuring
pulses
8 Number of the selected fault/
Fault message count
IT system
230 k
Ω
2/4
28.0 3.14 17:0 2
28.0 3.14 17:18
7 kΩ7 kΩ
Keypad
1 Next fault message
2 Exit view
3 Previous fault message
Display
4 Fault description
5 Alarm value
6 Fault appeared/
Fault disappeared
7 Number of the selected fault/
Fault message count
Insulation fault
RESET
RESET
Keypad
1 Press „RESET“-button
2 Select RESET by pressing
3 Press the "OK" button to
confirm the deletion
Display
4 Functions
Cancel
Delete present
messages?
All messages are
stored in the
history.
8/8
28.0 3.14 17:0 2
28.0 3.14 17:18
15kΩ
Keypad
1 Next message
2 Exit view
3 Previous message
Display
4 Fault description
5 Alarm value
6 Fault appeared/
Fault disappeared
7 Number of the selected fault/
Fault message count
History
Insulation fault
x.1
8.3 Fault display (inactive)
An inactive fault is indicated by . If several faults have occurred, the number of faults
will also be indicated.
The message shown on the display below means that there has been a fault in the past
but the device is no longer in fault condition.
1
6
3
7
5
8
If several fault messages have appeared, you can navigate through the faults using the
and buttons. In addition to the type of fault and the associated alarm value, you can
see when the fault has occurred and for how long it has been active.
4
1
2
4
2
8.4 Acknowledging a fault message
In order to acknowledge the fault message and return to the ISOMETER®'s standard display, all faults must be acknowledged by means of the "RESET" button.
This means that fault messages can only be reset when the cause of the fault has been
eliminated.
Press the "RESET" button, then and "OK" to clear the fault memory. The ISOMETER® returns to the standard display.
2
1
3
4
8.5 History memory
Up to 1023 alarm messages and device errors are stored in the history memory with date
and time stamp. If the history memory is deleted, the minimum insulation resistance R
will also be reset in the Data-isoGraph at Menu -> Data Measured values -> Reset Data-
isoGraph.
min
26
5
6
1
2
4
7
3
5
6
7
3
iso685-x-B_D00177_07_M_XXEN/07.2019
Page 27
DisplayDisplay
1/4
,001
,010
,100
1,0
MΩ
16:26 16:52
Data-isoGraph
Keypad
1 Change measured value
(jump forward one value)
2 Exit view
3 Change scaling (zoom in)
4 Change scaling (zoom out)
5 Change measured value
(jump back one value)
Display
6 Present time scaling
Start initial meas...
x.3
Please confirm your
settings.
Cancel Start ini..
ISOnet active
IT-System
230 k
Ω
IT-System
ISOloop active
230 k
Ω
8.6 Data-isoGraph
The isoGraph represents the chronological sequence of the insulation resistance over
time. This graphical representation can be displayed over the following time periods:
hour, day, week, month and year.
The measured values for individual representations are stored in a separate memory. Up
to 100 measured values are available to represent each graph. and the resolution of each
graph is determined by these values.
1
3
6
5
2
4
8.7 Initial measuring
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.
8.8 ISOnet operation
The ISOMETER® displays the message „ISOnet active“ when the ISOMETER® is in ISOnet
mode but is not currently measuring.
The "ON" LED lights up permanently and the measurement progress bar does not
pulse.
8.9 ISOloop operation
The ISOMETER® displays the message „ISOloop active“ when the ISOMETER® is in ISOnet
mode.
The "ON" LED lights up permanently.
27
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Page 28
8.10 Automatic test
Automatic Test
IT system
R(an) 40kΩ/10k
Ω
If the ISOMETER® measures in ISOnet mode, the "ON" LED flashes and the measurement
progress bar in the lower right corner pulses.
First, the ISOMETER® performs an automatic test. During the test, the connections to the
IT system and to earth are tested. Afterwards, the ISOMETER® performs an initial measurement and records all measured values in the device.
The ISOMETER® then measures during one measuring cycle before passing on the authorisation for insulation measurement to the ISOMETER® with the next higher address.
DisplayDisplay
28
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Page 29
9. Settings
1. Alarm settings 1. Insulation alarm 1. Alarm 1
2. Alarm 2
3. Memory
2. DC Alarm 1. Alarm
2. U(DC-E)
3. Profile
4. System type
5. Coupling
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. Outputs 1. Relay 1 1. Test
2. Relay mode
3. Function 1
4. Function 2
5. Function 3
2. Relay 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. Buzzer 1. Test
2. Function 1
3. Function 2
4. Function 3
6. Analogue 1. Mode
2. Midscale
3. TEST
4. Function
2. Data meas. values
3. Control 1. TEST
2. Reset
3. Start initial measuring
4. Device:
4. History 1. History
2. Delete
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 for subsription
4. Modbus TCP 1. Port 502
5. RS485
1. Modus
2. BS-Bus
3. isoData
1. Protocol
4. Modbus RTU 1. Address
2. Baudrate
3. Parity
4. Stop Bits
4. Displa
y
1. Brightness
2. Autom.dimming
5. Password 1. Password
2. Status
6. Commissioning
7. Backup 1. Save
2. Restore
8. Approve
9. Factory setting
10
.
Software 1. Update via interface
2. UPDATE
11
.
Service*
6. Info
* = Service PW needed
9.1 Menustructure
Settings
29
Menu items coloured RED
After activating password protection, access to the menu items coloured
RED is only possible after entering a password.
iso685-x-B_D00177_07_M_XXEN/07.2019
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SettingsSettings
t
R
R
an1
R
an2
Alarm 1
aktiv
Alarm 2
aktiv
Alarm 2
inaktiv
Hysterese
Alarm 1
inaktiv
Hysterese
9.2 Settings in the device menu
Representation of the menu items in the headings
The settings of the ISOMETER® are explained in the order of the device
menu. The menu items shown in the device display are indicated in brackets in the headings of this chapter.
9.2 (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:
9.2 (1.1) Insulation alarm
In the "Insulation alarm" menu, the ISOMETER® limit values for "Alarm 1" and "Alarm 2"
can be set.
Activation or deactivation of the two alarm levels R
for "Alarm 1" and R
an1
"Alarm 2" are illustrated in the graphic below.
An alarm will become inactive as soon as the hysteresis of the set operating value
is exceeded.
an2
for
9.2 (1.1.3) Fault memory
Automatic reset of inactive faults at the outputs relay 1, relay 2, digital output 1, digital
output 2:
•on If a fault becomes inactive, the programmed outputs remain in fault
condition until the system has been reset manually.
•off If a fault becomes inactive, the programmed outputs automatically
change the state.
9.2 (1.2) DC alarm
The DC alarm is triggered in the event of a DC offset voltage (U
) in the system.
DC-E
9.2 (1.2.1) Alarm
•on The DC alarm is triggered in the event of a DC offset voltage.
•off The DC alarm is NOT triggered in the event of a DC offset voltage.
9.2 (1.2.2) U(DC-E)
Set the DC alarm to a value between 20 V and 1 kV.
U
120 V
100 V
0 V
R
f
U1
U
DC-E
200 V
t
DC+
DC-
U1
U2
R
f
-80 V
U2
U
=(U1+U2)/2=(120 V-80 V)/2=20 V
DC-E
-100 V
9.2 (1.1.1) Alarm 1
For "Alarm 1" an insulation resistance of 1 k…10 M can be set independently
of "Alarm 2".
9.2 (1.1.2) Alarm 2
For "Alarm 2" an insulation resistance of 1 k…10 M can be set independently
of "Alarm 1".
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SettingsSettings
9.2 (1.3) Profile
Adapt the area of application of the ISOMETER® to your system profile. For a description
of the profiles, refer to chapter „Technical data“.
The following can be selected:
•Power circuits Suitable for most IT systems.
•Control circuits Not recommended for voltages > 230 V.
•Generator Fast measuring times, fast fault location possible.
•High capacitance Suitable for systems with high system leakage capacitances.
•Inverter > 10 Hz Suitable for systems with dynamic frequency control by inverters
in the range 10…460 Hz.
•Inverter < 10 Hz Suitable for systems with extremely low frequency controls in the
range 0.1…460 Hz.
•Customer-specific Enables the Bender service to make customer-specific settings.
9.2 (1.4) System type
Adapt the ISOMETER® to the IT system to be monitored. The following can be selected:
•DC DC system
•AC Single-phase AC system
•3AC 3AC system
9.2 (1.5) Coupling
Adapt the ISOMETER® to the requirements of Bender coupling devices. For a description
about the connection of coupling devices refer to chapter “Coupling devices” .
You may select.
•none
•AGH150W
•AGH204S-AK80
•AGH204S-AK160
•AGH520S
•AGH676S-4
9.2 (1.6) ISOnet
Make the settings to use the ISONet function.
The ISOnet function ensures via the Ethernet connection that only one ISOMETER® of the
interconnection is active when several ISOMETER®s are connected to an IT system.
For further information regarding the ISOnet function, refer to the chapter „Special func-
tions for couppled IT systems“.
9.2 (1.6.1) ISOnet
Activate or deactivate the ISONet function
•off The ISOnet is deactivated
•BCOM The ISOnet function is activated via BCOM
9.2 (1.6.2) Number of devices
Configure the number of devices (2…20) in a subsystem.
9.2 (1.7) ISOloop
Schalten Sie die ISOloop-Funktion aktiv oder inaktiv:
1. ISOloop:
2. Measured value subscription:
9.2 (1.7.1) ISOloop
Turns the function on or off.
9.2 (1.7.2) Measured value subscription
When the measured value subscription and the ISOloop function are activated, the measured values of the active measuring device are distributed within the team and shown
on all displays.
9.2 (1.8) (Start)
The ISOMETER® can be operated with a start-up delay of 0…600 seconds. The start-up is
delayed until the initial measurement takes place.
9.2 (1.9) Coupling monitoring
The ISOMETER® continuously monitors the coupling of energised systems. The coupling
of de-energised systems is monitored at 8-hour intervals. This monitoring function can be
activated or deactivated.
•on Coupling monitoring is activated.
•off Coupling monitoring is deactivated.
9.2 (1.10) Inputs
The ISOMETER® provides a total of three digital inputs.
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SettingsSettings
I1
I2 A BI3
Q1
Q2
M+
+
high
active
low
active
RS-485
Bus
RS-485
Bus
V
A
passive adjustable
X1
active adjustable
Currentmeter
Voltagemeter
TESTRESET
Deactiv.
Device
+24 V
I
x
+
t
0
1
t(on)
Reaktion
Impuls on
Reaktion
I
x
+
t
0
1
t(on)
Reaktion
Reaktion
Impuls on
The exemplary wiring diagram shows how the digital inputs can be wired.
9.2 (1.10.1) Digital 1
Parameters of the digital input.
9.2 (1.10.1.1) Mode
The operating mode for the digital input can be set to the following values:
•Active high An event is carried out on the rising edge of the digital input (low to high).
Response time t(on)/t(off) after a switch-on signal
X1 X1
< t(on)
•Active low An event is carried out on the falling edge of the digital input (high to low).
X1 X1
Response time t(on)/t(off) after a switch-off signal.
9.2 (1.10.1.2) t(on)
The response time t(on) after a switch-on signal can be set between 100 ms and 300 s.
9.2 (1.10.1.3) t(off)
The response time t(off) after a switch-off signal can be set between 100 ms and 300 s.
9.2 (1.10.1.4) Function
The parameters for the function of the digital inputs of the ISOMETER® can be set differently:
•off Digital input without function
•TEST Device self test
•RESET Reset of fault and alarm messages
•Deactivate
device
The device DOES NOT measure the insulation resistance, the message
Device inactive appears on the display. The IT system is
NOT being monitored! The device is isolated from the system via
internal system isolating switches.
•Start initial
measurement
In this case, all recorded measured values are discarded and a new
measurement is started
9.2 (1.10.2) Digital 2
Refer to “Digital 1”, page 32.
9.2 (1.10.3) Digital 3
Refer to “Digital 1”, page 32.
Deactivation of the ISOMETER® with digital inputs
The digital inputs are not interconnected. In order to avoid unintentional
deactivation of the ISOMETER®, it should be ensured during configuration
that different functions are assigned to the inputs.
< t(on)
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SettingsSettings
≥ 1
Reaktion
Funktion 1
Funktion 2
Funktion 3
DC+ Alarm
Symmetrischer Alarm
DC- Alarm
0 % 25 % 50 % 75 % 100 %
9.2 (1.11) Outputs
The ISOMETER® provides a total of six outputs.
The following parameters can be set for the outputs:
9.2 (1.11.1) Relay 1
The following parameters can be set for each relay:
9.2 (1.11.1.1) 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 The manual test checks the switching function of the relay
•off The manual test does not check the switching function of the relay
9.2 (1.11.1.2) Relay mode
The relay mode can be adapted to the application:
•N/C Normally closed - N/C operation contacts 11-12-14 / 21-22-24 (in
fault-free condition, the alarm relay is energised).
•N/O Normally open - N/O operation contacts
11-12-14 /
21-22-24 (in fault-
free condition, the alarm relay is de-energised).
•Flash Relay flashs. Flashrate: 1 s ON / 1 s OFF
9.2 (1.11.1.3) Function 1
Up to three functions can be assigned to one output. The functions are linked to an OR
operator:
The following parameters can be set.
Function Description
•off The function is not used.
•Ins. alarm 1 The status of the output changes when the value falls below the set
response value R
•Ins. alarm 2 The status of the output changes when the value falls below the set
response value R
an1
an2
.
.
Function Description
•Connection fault 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 terminals "E" and "KE" to earth.
• Load on "X1" too high.
•DC- alarm The status of the output changes in case of an earth fault in the direction
of DC when 75 % of the value are exceeded. This does not concern symmetrical faults. This function will only be carried out when the value falls
below the response value R
≥ 50 V.
U
n
and when the nominal system voltage is
an1
•DC+ alarm The status of the output changes in case of an earth fault in the direction
of DC+ when 25 % of the value are exceeded. This does not concern symmetrical faults. This function will only be carried out when the value falls
and when the nominal system voltage is
an1
•Symmetrical
alarm
below the response value R
≥ 50 V.
U
n
The status of the output changes in the event of a resistance ratio
between DC+ and DC- of 25 % to 75 %.
•Device fault The status of the output changes in the event of an internal device fault.
•Common alarm The status of the output changes on the occurrence of any alarm and
fault messages
(Ins. alarm 1 & 2, DC-/DC+ alarm, symmetrical alarm, connection and
device errors).
•Measurement com-
plete
The status of the output changes at the end of the initial measurement.
•Device inactive The status of the output changes when the device has been deactivated
via a digital input or the "Control" menu.
•DC offset alarm The status of the output changes on the occurrence of a DC offset voltage in the system.
•Connection error Change of state when one of the following events occurs:
• ISOnet general error
• ISOnet device timeout
• ISOnet missing device
• ISOloop fault
9.2 (1.11.1.4) Funktion 2
Refer to chapter 9.2 (1.11.1.3) “Function 1” on page 33.
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SettingsSettings
X1
iso685
Qx
+
X1
iso685
Qx
+
or
X1
iso685
Qx
+
X1
iso685
Qx
+
intern
extern
or
9.2 (1.11.1.5) Funktion3
Refer to chapter 9.2 (1.11.1.3) “Function 1” on page 33.
9.2 (1.11.2) Relais 2
Refer to chapter 9.2 (1.11.1) “Relay 1” on page 33.
9.2 (1.11.3) Digital 1
The following parameters can be set for each of the digital outputs:
9.2 (1.11.3.1) TEST
The functional test of the digital output can be activated or deactivated. This only applies
to the manual test and not to the cyclic device self test:
•on The manual test changes the status of the digital output.
•off The manual test does not change the status of the digital output.
9.2 (1.11.3.2) Mode
The following settings can be used to set the operating mode for the digital output:
•Active In active mode, +24 V are applied internally to output Qx.
•Passive In passive mode, ≤ 32 V are connected externally (see technical data). The
output switches the applied potential to ground.
Maximalen Ausgangsstrom beachten!
Maximaler Ausgangsstrom bei interner Spannungsversorgung
über A1/+ und A2/-: 200 mA in Summe an X1.
Beachten Sie außerdem die Formel zur Berechnung von I
LmaxX1
in den
Technischen Daten.
9.2 (1.11.3.3) Function 1
Refer to chapter 9.2 (1.11.1.3) “Function 1” on page 33.
9.2 (1.11.3.4) Function 2
Refer to chapter 9.2 (1.11.1.3) “Function 1” on page 33.
9.2 (1.11.3.5) Function 3
Refer to chapter 9.2 (1.11.1.3) “Function 1” on page 33.
9.2 (1.11.4) Digital 2
Refer to chapter 9.2 (1.11.3) “Digital 1” on page 34.
9.2 (1.11.5) Buzzer
The following parameters can be set for the buzzer.
9.2 (1.11.5.1) 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 The manual test activates the buzzer sound.
•off The manual test does not activate the buzzer sound.
9.2 (1.11.5.2) Function 1
Refer to chapter 9.2 (1.11.1.3) “Function 1” on page 33.
9.2 (1.11.5.3) Function 2
Refer to chapter 9.2 (1.11.1.3) “Function 1” on page 33.
9.2 (1.11.5.4) Function 3
Refer to chapter 9.2 (1.11.1.3) “Function 1” on page 33.
9.2 (1.11.6) Analogue
The following parameters can be set for the analogue output.
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SettingsSettings
M
+
X1 X1
A
M
+
X1 X1
V
100 Ω 1 MΩ
I/U
20 mA / 400 μA
10 V
0 mA / 4 mA
0 V / 2 V
1 k
1 M
100
100 k
Ω
28 kΩ
120 k Ω
100 Ω 1 MΩ
I/U
20 mA / 400 μA
10 V
0 mA / 4 mA
0 V / 2 V
120 kΩ
28 kΩ
R
SKM
= 28 k or 120 k/Midscale
A3= Measured value analoge output
R
F
= Insulation fault in k
RF
=
- R
SKM
(A2 - A1) * R
SKM
A3 - A
1
DC+ Alarm
Symmetrischer Alarm
DC- Alarm
0 % 25 % 50 % 75 % 100 %
0 V/2 V
0 mA/4 mA
0 μA
10 V
20 mA
400 μA
9.2 (1.11.6.1) Mode
The following values can be set for the operating mode of the analogue output
Current output
•0-20 mA Permissible load ≤ 600
•4-20 mA Permissible load ≤ 600
•0-400
Voltage output
•0-10 V Permissible load ≥ 1 kΩ
•2-10 V Permissible load ≥ 1 k
μA
Permissible load ≤ 4 k
:
9.2 (1.11.6.2) Midscale
Select the appropriate midscale. The following parameters can be set:
•Linear The switching signal is linear to the insulation resistance in the indicated measuring range.
•28 k
•120 k
Ω
Ω
The switching signal is analogue to the mid scale of 28 k or 120 k
on a measuring instrument.
Calculation of the insulation resistance using the analogue output:
Lower value
Analogue Output A
0 mA
4 mA
0 µA
0 V
2 V
Upper value
Analogue Output A
1
20 mA
20 mA
400 µA
10 V
10 V
2
9.2 (1.11.6.3) TEST
The functional test of the analogue output can be activated or deactivated. In this way,
the analogue output is adjusted once for the entire range. This only applies to the manual test and not to the cyclic device self test:
•on The manual test checks the analogue output function.
•off The manual test does not check the analogue output function.
9.2 (1.11.6.4) Function
Select the appropriate setting for the analogue output. The following parameters can be
set.
•Insulation value Depending on the measured insulation value, an analogue current
or voltage signal is provided at the output.
•DC offset Depending on the measured DC offset, an analogue current or voltage signal is provided at the output. This setting can only be used
when Linear is selected in the "Midscale" menu.
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9.2 (2.0)Data measured values
The ISOMETER® stores certain measured values for a specific period of time. You can view
these data in the "Data meas. value" menu. Navigate through the different views using
the and buttons:
1. isoGraph data
2. Insulation data
3. IT system data
4. IT system data
Displays the insulation resistance and chronological sequence.
1.1 Scaling: Hour
1.2 Scaling: Day
1.3 Scaling: Week
1.4 Scaling: Month
1.5 Scaling: Year
Displays the current insulation resistance, the minimum insulation
resistance measured and the system leakage capacitance.
Displays the system phase-to-phase voltages and the mains fre-
quency (r.m.s. values)
Displays the system phase-to-earth voltages
9.2 (3.0)Control
Control of the device during operation:
1. TEST
2. Reset
3. Start initial measurement
4. Device:
5. ISOnet priority
9.2 (3.1) TEST
Starts a manual device test.
9.2 (3.2) Reset
Reset of fault and alarm messages.
9.2 (3.5) ISOnet priority
Assigns priority to a device in ISOnet mode for a period of 12 hours. While the priority is
active, all other devices in ISOnet mode are inactive. Priority can be withdrawn at any
time. After 12 hours, automatic switchover to normal ISOnet operation takes place.
9.2 (4.0)History
In the history menu, the faults detected by the ISOMETER® are displayed.
•History Overview of faults that have occurred.
•Delete Reset the history memory.
9.2 (5.0)Device settings
Basic settings of the ISOMETER®.
9.2 (5.1) Language
Selecting the display language:
Deutsch Espanol Norsk Portugues
English (GB) Francais Polski
9.2 (5.2) Clock
Setting the time and date display format.
9.2 (5.2.1) Time
Setting the time format to 24 hours or 12 hours am/pm.
9.2 (5.2.2) Format (time)
Selecting the appropriate time format to be displayed:
•12 h 12-hour notation am/pm
•24 h 24-hour notation
9.2 (3.3) Start initial measurement
All recorded measurements are discarded and a new measurement is started
9.2 (3.4) Device:
Insulation resistance measurement function of the ISOMETER® active or inactive:
•Aktiv The device is active.
•Inaktiv
Display shows message
Device inactive. No monitoring of the IT system!
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9.2 (5.2.3) Summer time
Summer time can be considered in the following settings:
•off No automatic change between summer time and standard time.
•DST Daylight Saving Time
Automatic time change according to North American regulation.
Start: Second Sunday in March from 02:00 a.m. to 03:00 a.m. (local time)
End: First Sunday in November from 03:00 a.m. to 02:00 a.m. (local time)
•CEST Central European Summer Time
Automatic time change according to Central European regulation.
Start: Last Sunday in March from 02:00 a.m. CET to 03:00 a.m. CEST.
End: Last Sunday in October from 03:00 a.m. CEST to 02:00 a.m. CET.
9.2 (5.2.4) Date
Entering the current date based on the time format.
9.2 (5.2.5) Format (date)
Select the date format that you want to be displayed:
•dd.mm.yy day, month, year
•mm-dd-yy month, day, year
9.2 (5.2.6) NTP
Select whether you would like to synchronise the current time via NTP. To use this function you must configure the NTP server
•on Synchronisation via NTP server is activated.
•off Synchronisation via NTP server is deactivated.
.
9.2 (5.2.7) NTP server
Set the IP address of the NTP server.
9.2 (5.2.8) UTC
Set the time according to UTC (coordinated world time). For Germany, set +1 for wintertime (CET) and +2 for summer time (CEST).
9.2 (5.3) Interface
Menu for connecting and parameterising other devices to the ISOMETER.
9.2 (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 Allow external parameter setting.
•Deny Refuse external parameter setting.
9.2 (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.
1. DHCP:
2. IP:
3. SN:
4. Std.GW:
5. DNS:
6. Domain
Entering a DHCP server
Entering an IP address
Entering a subnet mask
Entering a standard gateway
Entering a DNS server
Entering a domain name
9.2 (5.3.2.1) DHCP
Select whether you want to use automatic address assignment via your DHCP server. If
the automatic IP address assignment is enabled, the IP address, the subnet mask and the
standard gateway will be automatically assigned. If the automatic IP address assignment
is disabled, these settings must be made manually in the menu.
You can view the IP address in the "Info" menu.
•on Automatic IP address assignment is activated.
•off Automatic IP address assignment is deactivated.
9.2 (5.3.2.2) IP (manual configuration)
Set the appropriate IP address for the ISOMETER®. Make sure that the address of the device is within the address range of your network. For information on the address range of
your network, contact your network administrator.
9.2 (5.3.2.3) SN (manual configuration)
Set the appropriate subnet mask. (Standard subnet mask: 255.255.255.0) Contact your
network administrator for more information.
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9.2 (5.3.2.4) Std. GW(manual configuration)
If a standard gateway is used in your network, enter its IP address here. If there is no gateway in the network, enter an address not yet used in the address range as gateway address. The device cannot be acccessed without setting a standard gateway address.
Contact your network administrator for information on the configuration of your local
network.
9.2 (5.3.2.5) DNS server
If a DNS server is used, enter the server's IP address. For questions regarding the configuration of a DNS server, contact your network administrator.
9.2 (5.3.2.6) Domain
Enter the domain. For questions regarding the configuration of the domain, contact your
network administrator.
9.2 (5.3.3) BCOM
Set the parameters for communication with other devices via BCOM.
9.2 (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.
9.2 (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.
9.2 (5.3.3.3) Device address
Assign a device address. Each device must have a different address to distinguish it from
others in the system and ensure correct communication.
9.2 (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.
9.2 (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.
9.2 (5.3.4) Modbus/TCP
Settings for communication with other devices via Modbus TCP.
9.2 (5.3.4.1) Port 502
Choose whether Modbus TCP should be used:
•on Modbus TCP can be used for communication with other devices.
•off Modbus TCP cannot be used for communication with other devices.
9.2 (5.3.5) RS-485
Set the parameters for communication with other devices via the Bender sensor bus.
1. Mode:
2. BS bus
3. isoData
4. Modbus RTU
Selecting an RS-485 protocol
BS bus settings
isoData settings
Modbus RTU settings (Remote Terminal Unit)
9.2 (5.3.5.1) BS bus
1. Address
Address adjustable from 1…90
9.2 (5.3.5.2) isoData
1. Protocol
Mode adjustable 1, 2 or 3
9.2 (5.3.6) Modbus RTU
1. Address
2. Baud rate
3. Parity
4. Stop bits
Entering an address from 1…247
Setting 9.6 | 19.2 | 37.4 | 57.6 | 115 kbaud
Setting "even" | "odd" | "none"
Setting "1" | "2" | "off"
9.2 (5.4) Display
Adjust the display brightness for the ISOMETER® in the "Display" menu:
9.2 (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 re-
duced. If now a button is pressed, the normal brightness is restored.
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SettingsSettings
9.2 (5.4.2) Automatic dimming
• on Background lighting, POWER LED and button lighting are switched off after 3 min-
utes without operation and are only switched on again when any button is pressed.
Alarm LEDs light in the event of an alarm.
• off
9.2 (5.5) Password
Use the password function to protect the device parameters against unauthorised adjustment. The default password is 0000.
9.2 (5.5.1) Password
Enter an individual four-digit password.
9.2 (5.5.2) Status
Decide if the password query should be used:
•on Password query active
•off Password query inactive
9.2 (5.6) Commissioning
In the "Commissioning" menu you can open the ISOMETER®'s commissioning wizard
again. Pressing the commissioning button immediately starts the commissioning wizard.
After going through all the queried values, the new values are accepted by the device.
Press "ESC" to abort the process.
9.2 (5.7) Data backup
In the "Data backup" menu device settings can be saved or device settings already saved
can be restored.
•Save The ISOMETER® saves your device settings.
•Restore The ISOMETER® restores your initial or your saved device settings.
9.2 (5.10) Software
•Update via interface Activates the SW update via web interface.
•Update Starts update on the device. Alternatively, the update can
also be started via the web interface.
9.2 (5.10.1) Update via interface
This must be active if a SW update is to be transferred from the web interface to the device via a BUF file.
9.2 (5.10.2) Update
Starts the update process after the BUF file has been transferred to the device.
9.2 (5.11) Service
Input Password
•Password
The Service menu can only be accessed by Bender Service staff.
9.2 (6.0)Info
The ISOMETER®'s present settings can be viewed in the "Info" menu. Navigate through
the different views using the and buttons:
•Device Device name, serial number, article number
•Software Software version measurement technology, software version HMI
•Measurement
technology
•Clock Time, date, summer time
•Ethernet IP address, DHCP status, MAC address
•RS485 BS bus address; Modbus RTU address, BS bus mode
Selected profile, selected system type
9.2 (5.8) Activation
1. Profile:
Enter a 4-digit Service Profile PIN
Activation of special customer profiles by Bender. The device is first configured by the
Bender service and the configuration is saved in a service profile. Activating this profile
causes a warning message. The customer can activate it as a customer-specific profile by
entering a Service Profile PIN. The warning message is then eliminated.
9.2 (5.9) Factory settings
Resetting the device to factory settings.
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10. Device communication
Device communication
10.1 Ethernet interface
The Ethernet interface can be used for communication with Modbus, web server and
BCOM.
A maximum of 5 TCP/IP connections can be used simultaneously.
10.2 BCOM
BCOM is intended for communication between Bender devices via Ethernet.
In order to guarantee that all devices are able to communicate via BCOM, all devices 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
www.bender.de/en/service-support/downloads .
When address 0 has been set for the communication via BCOM the device
can be accessed via the network (e. g. for parameter setting, etc.) but it
cannot communicate with other devices.
10.3 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 at a specific register address with a read command. With a write
command, data can be written to 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 www.bender.de/en/
service-support/downloads .
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.
10.4 Web server
The ISOMETER®s of the isoxx685 device family feature an integrated web server which
displays the device data via a web browser. This way, measured values of the ISOMETER®s
can be read out and parameterised.
Preferably use the following browsers:
The web server is accessed by entering the IP address of the ISOMETER® into the web
browser. (Example: http://192.168.0.5) The current IP address of the respective ISOMETER® can be found in the device menu at "Info" -> "Ethernet"
10.4.1 Conventions
TCP connections
A maximum of 5 TCP/IP connections can be used simultaneously.
Only one device may access the web server at a time. If several devices try
to access the web server at the same time, this may result in timeouts.
Write access
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).
10.4.2 Functions
The web server offers the following functions:
• Visualisation
– Display of device information (e.g. device type, software version, etc.)
– Display of present device settings
– Display of alarm messages
– Display of the Modbus information of the individual parameters
– Display of the interfaces in use
– Overview of the present measured values
– Detailed graphic representation of the insulation resistance (isoGraph)
– Fast and simple visualisation without any programming
• Parameter setting
– Easy and fast parameterisation of the device
– Easy assignment and editing options of device texts
• Maintenance
– Data storage of specific events for fast support by the Bender service
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Device communicationDevice communication
WERKZEUGE
ALARME
GERÄT
START
DE
System OK
Geräteinfo
D
E
System OK
System OK
Alarme 2
active 1st menu level
Mouseover
active submenu level
10.4.3 User interface
1
4
5
1 LOGO Logo and device name
Device address
Date and time of the accessing browser system.
2 System information
3 Language Changing the language settings
4Browser menu
5 System message
The web user interface does not indicate the present time of the
ISOMETER®.
The present time of the ISOMETER
DEVICE -> Settings -> Clock.
Main menu of the web server (first level)
•START
•DEVICE
•ALARMS
•TOOLS
2
3
® can be found in the menu at
If there are pending alarms, click on the
red button or go to menu item "ALARMS"
(3) to obtain further information.
10.4.4 Menu structure
The web menu is located on the left side of the browser window. Activated menu items
are either highlighted in YELLOW or written in YELLOW. Use the scroll bar on the right
side to display further menu items.
The menu structure is provided by the selected device. It differs depending on the device
and its menu structure. The structure of the device menu is described in the manuals of
the device variants in the chapter "Settings".
Web menu – Device menu
Web menu: menu displayed by the web server via the browser.
Device menu: menu available via the device display.
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Device communicationDevice communication
without changes
present values
with changes
10.4.5 Parameter changes
10.4.5.1 Display of parameters in standard versions
Inputs are located horizontally (orange frame) and the corresponding parameters vertically (blue frame). Currently set parameters are placed on the left side of the input field
in grey font (red frame) and also appear in the input field if no changes have been made.
Display of the present values in the browser (extract)
10.4.5.2 Display of parameters in the EDS menu area
If a list contains many entries (e.g. representation of channels in the EDS system), the
channels are placed vertically as a list (orange frame) and the corresponding parameters
horizontally (blue frame). Values highlighted in YELLOW represent the changes that have
not been accepted by the system yet.
10.4.5.3 Error detection in case of incorrect entry
In some cases, the system expects certain characters to be entered, for example, CAPITAL
LETTERS. In case of an incorrect entry, the corresponding field is coloured in RED.
Incorrect text input
10.4.5.4 Display of parameters with Modbus registers
A Modbus register is assigned to each parameter, which can be addressed via the open
interfaces Modbus TCP or Modbus RTU. The registers can be displayed with the respective parameters by activating "Tools" -> "Parameter addresses" in the menu.
Activation of Modbus register display
After activation, all parameters with the corresponding Modbus registers are displayed.
42
Channel representation in the EDS menu
Display of Modbus registers
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Device communicationDevice communication
Drop-down menu Value input Text input
Text input incorrect
Text input not confirmed
Value input not confirmedrop-down menu not confirmed
Text input confirmed
Value input confirmedDrop-down menu confirmed
Confirm or discard
Write access
6.3.1
• allow
o deny
10.4.6 Changing parameters in the web browser
Changed values are highlighted in YELLOW in the input field (see fig. 2.1). Changes can
be made via drop-down menu, value input or text input.
The following figure shows application examples.
10.4.7 Changing parameters in the device menu when the web browser is open
If values are changed in the iso685 device menu, the changed values are not automatically displayed on an already open browser page in the web server. The values that
have been changed in the device menu are highlighted in yellow in the web server, but
the old value is still displayed.
Update of changes
When opening a new browser page, the changes are already updated.
There are two options:
• The values changed in the device should be accepted and displayed updated in the
web server:
Click on the "Discard changes" button at the bottom of the screen.
The values changed in the device should NOT be accepted. The old values are restored.
Device changes are discarded:
Click on the "Save changes" button at the bottom of the screen.
10.4.8 Write access for parameter changes
Deny write access to the ISOMETER® iso685 for the web server, for example to prevent
changes of parameters via the web server.
Deny write access in the menu at Menu/Device settings/Interface/Write access or directly in the web server. Allowing write access again is only possible in the device itself at
Menu/Device settings/Interface/Write access.
43
Input options web interface iso685 devices
Factory-set to "Deny". A parameter change via the web server is only possible if you allow
write access in the device.
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Device communicationDevice communication
2
2
2
3
2
2
2
222
3
2 2
2
3
10.5 BS bus
The BS bus is used to extend Bender measuring devices (e.g. ISOMETER®) It is an RS-485 interface with a specially developed protocol for Bender devices. On the BS bus, the transmission of alarm messages takes priority over the transmission of all other messages. For
further information, refer to the BS bus manual (document number: D00278) at
www.bender.de/en/service-support/downloads
When using interface converters, a galvanic separation is required.
CAUTION
The compatibility of the BS bus and the BMS bus is restricted!
10.5.1 Master-slave principle
The BS bus works according to the master-slave principle. This means that the measuring
device operates as the MASTER, while all sensor devices operate as SLAVES. The master is
responsible for the communication necessary for the measuring function. It also provides
the required bus bias voltage for the operation of the BS bus.
10.5.2 Addresses and address ranges on the BS bus
Address 1 is assigned to the master. All sensor devices receive unique addresses starting
with address 2, assigned in consecutive order without gaps. In the event of a device failure, a maximum gap of 5 addresses is permissible.
10.5.3 RS-485 specifications/cables
The RS-485 specification restricts the cable length to 1200 m
connection. The number of devices on the BS bus is only limited by the BS bus master.
Use twisted pair, shielded cables for bus cabling. For example, cable type J-Y(St)Y
n x 2 x 0.8 is suitable. The shield must have a single-ended connection to earth. The BS
bus must be terminated at both ends with terminating resistors (120 , 0.25 W). The terminating resistors are connected in parallel to the terminals A and B. Some devices feature integrated terminating resistors and can be activated or deactivated via the "R" button.
.
and requires a daisy chain
10.5.4 Cable routing
The optimum cable routing for the BS bus is a double-terminated bus topology. The
length of the branch line is limited to 1 m. These branch lines do not have to be
terminated.
Bus topology examples:
Termination
1Master
2 Slave Terminating resistor deactivated via switch on device (OFF)
3Slave
Terminating resistor activated via switch on device (ON) or external terminating resistor between terminals A and B
Terminating resistor activated via switch on device (ON) or external terminating resistor between terminals A and B
Only the first and last device may be terminated. Therefore, check all
devices.
CAUTION
10.6 Modbus RTU
Modbus RTU is implemented on the RS-485 interface. The data transmission is binary/serial. Error-free and continuous data transmission must be guaranteed.
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 measur ed values und paramete rs c an be fo und in the "iso685-D Annex A" manual with the title
"ISOMETER® iso685 device family - Modbus settings" at www.bender.de/en/service-sup-
port/downloads.
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10.7 isoData protocol
Data transmission is continuous and cannot be interrupted by the device receiving the
data or influenced in any other way (unidirectional). This protocol cannot be combined
with the BMS protocol.
To evaluate the data by means of a PC or laptop, an USB/RS232-RS485 interface converter
are required. Contact Bender Service to receive this device.
Interface data:
• The RS-485 interface, galvanically isolated from the device electronics
• Connection to terminals A and B.
• Maximum cable length 1200 m (in Mode 1)
A data block is output after each valid measurement.
Device communicationDevice communication
TX
Mode Baudrate Data Bits Stop Bits Parity Flow Control
Mode 1 9600 8 1 None None 10 * 1000 No No 0x0F 0x02 0x03 <LF><CR>
Mode 2 115200 8 1 Even None 1000 No Yes '" '!' n/a <CR><LF>
Mode 3 115200 8 1 Even None 1000 Yes Yes '" '!' n/a <CR><LF>
Interval
[ms]
Bitmask
Support
Frame
Counter
Support
Field
Delimiter
Start
To ke n
End Token Line End
The elements described in the "isoData protocol" table below have a fixed
length in the present implementation. However, isoData is a protocol that
separates individual elements by means of delimiters (see 'Field Delimiter'
in the table above). By using these delimiters, a fixed field length can basically be dispensed with. It is strongly recommended to implement external applications NOT based on field lengths, but based on the element
separators.
45
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Device communication
10.7.1 isoData-protocol table
Description Length [Bytes] Value Unit Example string Mode
123
Data packet start character
for modes 2 and 3
Data packet start character
for mode 1
Available Bitmask 8 Dependent on the fields included. (Bitmask) FFFFFFFF - - 1
Date 8 Current date dd.mm.yy - - 2
Time 12 Current time hh:mm:ss:mmm - - 3
Insulation fault location 1
Isolation fault location
Detailed overview
Isolation fault location
Brief overview
Insulation resistance
Brief overview
insulation resistance
Limited overview
insulation resistance
Detailed overview
Measured value counter 2
Leakage capacitance Ce 4
Voltage U
Voltage U
Voltage U
Voltage U
Voltage U
(VRMS) L1-L2
n
(VRMS) L1-L3
n
(VRMS) L2-L3
n
(VRMS)
n
(VRMS) L1-PE
n
1! ! -00
1 0x02 0x02 0 - -
' ' = symmetrical fault
'+' = Fault on L1/+
x-1-
'–' = Fault on L3/-
4
Insulation fault percentage distribution from
100 … +100
%+123 -84
0 = AC fault
1
1 = DC- fault
06--
2 = DC+ fault
6
6
9
R
F
Note: Value limited to 9.9 M
R
F
Note: Value limited to 9.9 G
R
F
Increased with each new measured value.
Integer overflow at 99.
R Mode [F] Z Mode [nF]
Note: Z Mode is not supported.
7
7
7
Voltage bewteen phase L1 and phase L2.
RMS value, unsigned.
Voltage between phase L1 and phase L3.
RMS value, unsigned.
Voltage between phases L2 and L3.
RMS value, unsigned.
k 123456 1 - -
k 1234.5 - 2 -
k 1234567.8 - - 5
12 - 11 6
F (R-Mode)
nF (Z-Mode)
1234 - 3 7
V 12345.6 - - 8
V 12345.6 - - 9
V 12345.6 - - 10
Voltage between phases L1 and L2.
5
RMS value, signed AC Net ' '
V +1234 - 5 -
DC system always signed with '+'
5
Voltage between phase L1 and PE.
RMS value, Note: always signed with '+'
V 1234 - 6 11
46
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Device communication
Description Length [Bytes] Value Unit Example string Mode
Voltage Un (VRMS) L2-PE
Voltage U
(VRMS) L3-PE
n
5
5
Measurement quality 3
Voltage DC-PE 4 DC offset voltage to earth V +123 - - 15
Alarm messages 4
Bit2: Device error n/a 0x0002 Bitmaske - + +
Bit3: Prewarning
Insulation fault R
on L1/+
F
Bit4: Prewarning
Insulation fault RF on L2/-
Bit5: Prewarning
Symmetrical insulation fault RF
Bit6: Alarm
Insulation fault R
on L1/+
F
Bit7: Alarm
Insulation fault RF on L2/-
Bit8: Alarm
Symmetrical insulation fault RF
Bit9: Prewarning
Insulation impedance Z
F
Bit10: Alarm
Insulation impedance Z
F
Bit11: Alarm
Undervoltage U
n
Bit12: Alarm
Overvoltage U
n
n/a 0x0004 Bitmask - + +
n/a 0x0008 Bitmask - + +
n/a 0x000C Bitmask - + +
n/a 0x0010 Bitmask - + +
n/a 0x0020 Bitmask - + +
n/a 0x0030 Bitmask - + +
n/a 0x0040 Note: Currently not supported Bitmask - + -
n/a 0x0080 Note: Currently not supported Bitmask - + -
n/a 0x0100 Note: Currently not supported Bitmask - + -
n/a 0x0200 Note: Currently not supported Bitmask - + -
Bit13: System test message n/a 0x0400 Bitmask - + +
Bit14: Device starts with alarm n/a 0x0800 Note: Currently not supported Bitmask - + -
Voltage between phase L2 and PE.
RMS value, Note: always signed with '+'
Voltage between phase L3 and PE.
RMS value, Note: always signed with '+'
Quality of measured value
0 % = Poor quality
=> Change profile
100 % = good quality
=> Profile fits the application
[Hexadezimal] (with leading „0x“) In this value,
the messages are included with the OR function
V 1234 - - 12
V 1234 - 7 13
% 100 - - 14
BIT 1234 - 10 16
47
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Device communication
Description Length [Bytes] Value Unit Example string Mode
0 == No alarm
Alarm message Insualtion fault
Brief overview
1
Temperature in device 4 Temperature value preceeded by '+' or '-' sign °C +100 - - 17
System frequency 3 0 Hz 123 - - 18
Response value 1 6
Response value 2 6
System frequency 3
Relay (K1,K2) states 1
Impedance 6
Unsymmetrical insulation resistance,
approximate
6 RUGF k 1234.5 - 9 -
Insulation measurement ADC value 5 ADC value in digits 12345 - - -
Active measuring profile 2
Frame counter 1 Counts continuously from 0 to 9. 1 - - 24
String end 2
1 == Alarm 1
2 == Alarm 2
3 == Alarm 1 + Alarm 2
R
F
R
F
[ ' DC' | ' AC' | '3AC' ]
ATTENTION: Observe a blank space preceeding
AC and DC!
0 -> K1 == off, K2 == off
1 -> K1 == on, K2 == off
2 -> K1 == off, K2 == on
3 -> K1 == on, K2 == on
Z
F
01 - Power circuits
02 - Control circuits
03 - Generator
04- High capacitance
05 - Inverter > 10Hz
06 - Inverter < 10Hz
07 - Custom-specific profile
08 - Service profile
String end!
ATTENTION: Standard mode sent <LF><CR>,
i.e. the two characters are in reverse order!!!
Number 0 5 - -
k 123456 2 - 19
k 123456 3 - 20
3AC - - 21
04-22
k 1234.5 - 4 -
Number 01 - - 23
ATTENTION
(String end)
sent(Standar
<CR><LF> + + +
d mode)
48
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11.
IT-System 1 IT-System 2
BCOM
Adr. 1
BCOM
Adr. 2
Special functions for coupled IT systems
Special functions for coupled IT systems
11.1 Particularities when monitoring coupled IT systems
When using ISOMETER®s in IT systems, make sure that only one active ISOMETER® is connected in each interconnected system. If several ISOMETER®s are to be connected to the
IT system, ensure that only one ISOMETER® is active in the IT system via system isolation
using the digital input or Ethernet (ISOnet function).
If IT systems are interconnected via coupling switches, make sure that ISOMETER®s not
currently used are disconnected from the IT system and deactivated.
IT systems coupled via diodes or capacitances may also influence the insulation monitoring process so that a central control of the different ISOMETER®s is required.
11.2 System isolation via digital input with two coupled systems
In order to deactivate the ISOMETER® iso685-x-B via one of the digital inputs, the coupling switch must have a free contact.
If the digital input is no longer selected, first the connection to the IT system is restored
and afterwards, an entirely new measuring cycle for the insulation monitoring starts. This
function can be used to disconnect the second ISOMETER® selectively in coupled IT systems via the auxiliary contact of the coupling switch.
11.3 System isolation via ISOnet
The ISOnet function ensures via an Ethernet connection that only one ISOMETER® of the
interconnection is active when several ISOMETER®s are connected to an IT system.
For several ISOMETER®s to be able to measure in the same ISOnet interconnection, the
settings for the BCOM system name and the BCOM subsystem have to be the same. Only
the device address has to be different. If this is not taken into account, the ISOnet function
will not work.
If the ISOnet function is deactivated in an ISOMETER® in an ISOnet interconnection, it will
measure continuously and will not forward measuring commands to the next device in
the interconnection.
In comparison to a solution with coupling switches and function input, the response time
will be extended because the measurement in the IT system is not carried out continuously.
The addresses of the ISOMETER®s in the ISOnet interconnection can be selected at will.
The addresses do not have to be subsequent but they have to differ from each other.
If in addition to the ISOnet interconnection the digital inputs are wired and a device is
deactivated via a digital input, the device will forward the measuring authorisation until
the signal at the digital input disappears. Afterwards, it participates again in the measuring interconnection.
Via the X1 connector, the ISOMETER® can be isolated from the IT system and the measuring functions can be deactivated. Therefore, the function of the digital input in use has to
be set to "Device inactive".
If the digital input used for this function is selected, the connectors "L1/+", "L2", "L3/-" are
deactivated via internal system isolating switches, the measuring function stops and the
following message appears on the display: "Device inactive. Device separated".
Stored fault messages are reset when the cause of the fault has been eliminated (RESET
function).
49
Configuration
Maximum number of devices in an ISOnet interconnection: 20 devices
The IP address of the standard gateway must suit the subnet mask, so that
the ISOnet function can operate correctly.
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Special functions for coupled IT systemsSpecial functions for coupled IT systems
System 1 System 2
11.3.1 Systempictures
1. 2.
3. 4.
SWITCH
11.3.2 Configuration and function
For the ISOnet function, the following settings are made in the menu: Alarm settings
-> ISONet -> BCOM. The ISOnet function of all ISOMETER®s existing in the system has
to be activated and the number of devices has to be determined in the menu Alarm
settings -> Number of devices.
Also the parameters of the Ethernet and BCOM have to be set so that the devices in the
ISOnet interconnection can communicate with each other.
After starting the system, the devices initialise. The initialisation phase ends when the
configured number of devices has been reached. Then, the first device with the lowest
address starts with a measuring cycle. When an ISOMETER® has finished one measuring
cycle, the authorisation for insulation measurement is forwarded to the ISOMETER® with
the next higher address. While one ISOMETER® is measuring, all other ISOMETER®s are
separated from the system via internal system isolation switches. By limiting to one subsystem it is possible to have several ISOnet interconnections running in one system.
If a single device fails, the remaining ISOMETER®s continue the ISOnet operation. For the
failure of one device, two scenarios are possible:
• A device fails during a measuring procedure.
After timeout, another device takes over the measuring function.
In this way, all devices monitor each other.
• The device fails in the inactive mode.
When forwarding the measuring authorisation, the device is skipped and the next
device carries out the measurement.
If a device that has failed before returns, it is taken into the interconnection again and can
carry out a measurement during the next run.
50
Parallel operation ISOnet and ISOloop
ISOnet and ISOloop must not be activated together, otherwise a measurement is not guaranteed.
11.3.3 ISOnet priority
This function makes it possible to give the device in ISOnet mode a permanent priority in
the system or to take over the priority from another device. While the function is set to
active, all other devices in ISOnet mode are inactive. The last requesting device always
has priority. After 12 hours, the device automatically returns to normal mode.
With the ISOnet priority function, priority can be requested or yielded in the Control ->
ISOnet priority menu.
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Special functions for coupled IT systemsSpecial functions for coupled IT systems
PGH ON
PGH ON
PGH ON
PGH ON
Switch
1
2
4
3
11.4 ISOloop
Ring systems are a special type of coupled systems in which all systems can be coupled
to form a ring interconnection. The ISOloop function ensures that, in a system with several insulation monitoring devices, one device is always actively measuring. The devices
that work in an ISOloop configuration are combined into a group. Within the group,
digital inputs are used to control which devices are currently working together in a team.
Within the team, the device with the lowest BCOM address takes over the measuring task.
If the systems are coupled via the coupling switches, the devices receive a signal via the
digital input informing them that they are now working together as a team. If only the upper coupling switch is closed, device 1 and device 2 are in a team and device 1 takes over
the measuring task. If all coupling switches are closed, all four devices are in one team and
device 1 takes over the measuring task.
The measuring device with the lowest BCOM address in a team (in the example, device 1)
distributes its currently measured insulation value to all team members (here device 2).
The parameter "Measured value subscription" can be used to define whether this shared
measured value is to be shown on the respective device. If this function is activated, device 2 would also report an insulation alarm 1 and 2 based on the selected alarm thresholds. This function is activated by default.
The basis of the ISOloop function is the combination of several ISOMETER®s to form an interconnection. The grouping of up to 10 ISOMETER®s is carried out with a separate software, the BCOM Group Manager. The program can be downloaded from the Bender
website at www.bender.de/service-support/downloads or via the web server ("Menu" >
"Settings" > "File" \wwwroot\groupcfg.zip). The tested setup file can be executed on any
Windows PC in the network.
Parallel operation ISOnet and ISOloop
ISOnet and ISOloop should not be activated simultaneously since the two
functions are opposed. In ISOnet mode, the measuring task is assigned cyclically to all devices in the system, while in ISOloop mode, the measuring
task is always assigned to the device with the lowest address within a defined interconnection.
11.4.1 Preparing the devices in an interconnection
In order to enable the cooperation of different devices within an interconnection, each
device must be provided with a valid BCOM address. The respective system name must
be configured uniformly for all devices.
51
BCOM system name configuration
All devices in the interconnection must have a common device name.
Information on the configuration of BCOM in the device menu can be found in chapter
9.2 (6.3.3) BCOM. Information about BCOM can be found in chapter 10.2 BCOM in this ma-
nual and in the BCOM manual (D00256) at
http://www.bender.de/service-support/downloads.
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Special functions for coupled IT systemsSpecial functions for coupled IT systems
Delete connection
A maximum of 10 addresses (devices) in one interconnection
Subnet specification in an interconnection (different subnets possible)
Freely selectable device description
Target address for "loop" information.
Each device requires a target in the interconnection
11.4.2 Creating groups with the BCOM Group Manager
The BCOM Group Manager provides help for creating ISOMETER® groups. Open the program and select ISOloop mode.
11.4.2.1 Creating groups
The "Connection List" must contain all connections that exist in the installation. The following figure shows the connections for the above example.
After all settings of the group have been made, the configuration file is saved.
Add connection
Add a device to the group
Remove a device from the group
Delete all connect
Remove all devices from the group
11.4.2.2 Switching rules
Source and target define the two devices that work together in a team when the coupling
switch connected to the source is closed. (Example: The upper coupling switch is connected to device 1 => source is device 1 and target is device 2. Each combination of
subnet and device address may only exist once as source and target in an interconnection. Each device requires exactly and exclusively one other device as target.
52
File name of the configuration file
The name of the configuration file of the ISOloop interconnection is
"grp_0102.cfg". The name must not be changed, since every ISOMETER®
receives the information about the ISOloop interconnection from a file
with exactly this name. For documentation purposes, we recommend saving the file in a zip file, the name of which can then be changed.
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Special functions for coupled IT systemsSpecial functions for coupled IT systems
11.4.2.3 Transferring the configuration file to an ISOMETER®
The configuration file is installed via the web user interface of the iso685-x-P device in the
browser of a computer in the network. Proceed as follows:
1. Apply a supply voltage to all correctly connected devices in the interconnection.
All devices in the interconnection must be switched on
The ISOloop information is transferred from device to device according to
an address sequence defined in the configuration. Therefore, when uploading the configuration file, all devices in the interconnection must be switched on and connected to the network.
2. Parameterise the Ethernet settings for all devices and check that the devices can
communicate via Ethernet.
3. Parameterise the BCOM addresses created in the Group Manager for all devices
4. Activate the ISOloop function on all devices
5. Enter the IP address of the device to which you want to upload the configuration file
in the browser window.
6. Navigate to the following menu item: "Device" > "Menu" > "Settings" > "File"
The following input window appears in the content area of the COMTRAXX® user
interface.
After completion, the file is available for download in the download area of each
device:
11.4.3 Configuration and function on the ISOMETER®
The ISOloop function is enabled or disabled in the menu at Alarm settings -> ISOloop . The function must be activated and configured for all ISOMETER®s in the system
that have to work synchronously.
To enable the devices in the ISOloop interconnection to communicate with each other,
the Ethernet settings (DHCP on or IP address, subnet mask and default gateway) must be
made in addition to the ISOloop function.
Menu Alarm settings -> ISOloop Activate ISOloop function
Menu Alarm settings -> Inputs -> Digital input X Select ISOloop as function
ISOloop function
If the ISOloop function is not activated before the Group Manager file is
uploaded, or if the devices do not have valid IP/BCOM parameters, the file
is not automatically distributed in the system.
7. Select target folder "group" (1.)
8. Select file "grp_0102.cfg" in the corresponding folder of your source PC (2.)
9. In the target path line (3.), the following must appear after the symbol:
\group\grp_0102.cfg
10. Start the upload by pressing the "Save" button (4.)
11. The configuration settings of the interconnection are automatically distributed after
completing the procedure.
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12. Coupling devices
Type: AGH150W-4
Nominal voltage: DC 0…1760 V
Operative uncertainty: 15 % min. +/- 5 kΩ
Art.-No.: B 98 018 006
PE
U
S
2A
L1
L2
L3
N
Type: AGH150W-4
Nominal voltage: 3(N)AC 0…1150 V
Operative uncertainty: 15 % min. +/- 5 kΩ
Art.-No.: B 98 018 006
Coupling devices
Coupling devices extend the nominal system voltage range of an ISOMETER®.
Depending on the configuration, systems up to a nominal system voltage of 12 kV can be
monitored.
Risk of electric shock!
The coupling device is operated with high voltage, which can be life-threatening in case of direct contact. Make sure that only electrically skilled
Danger
persons work on or with the device. Read the operating manual of the
coupling device carefully.
12.1 Connection using the AGH150W-4(DC)
L+
L-
PE
U
S
2A
Behaviour of system:
• If the ISOMETER® is operated with a coupling device, this device must be specified in
the commissioning assistant during commissioning or in the device menu later on.
• If a coupling device is selected during the commissioning or in the device menu, the
ISOMETER® automatically sets the system type to 3AC. This setting must not be
changed.
• If the ISOMETER® is operated with a coupling device, the DC alarm and the coupling
monitoring are deactivated.
• If the ISOMETER® is operated with a coupling device, the values of the coupling
monitoring, the DC offset and the measured values are not determined correctly.
12.2 Connection using the AGH150W-4(3(N)AC)
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Coupling devicesCoupling devices
Type: AGH520S
Nominal voltage: AC 0…7200 V
Operative uncertainty: 15 % min. +/- 5 kΩ
Art.-No.: B 913 033
PE
U
S
2A
L1
L2
L3
N
Type: AGH520S
Nominal voltage: AC 0…7200 V
Operative uncertainty: 15 % min. +/- 5 kΩ
Art.-No.: B 913 033
12.3 Connection using the AGH520S (3AC)
U
S
2A
12.4 Connection using the AGH520S (3(N)AC)
L1
L2
L3
PE
55
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Coupling devicesCoupling devices
PE
U
S
2A
L1
L2
L3
N
Type: AGH204S-4
Nominal voltage with rectifier: AC 0...1300 V
Nominal voltage without rectifier: AC 0...1650 V
Operative uncertainty: 15 % min. +/- 5 kΩ
Art.-No.: B 914 013
A) mit Stromrichter
B) ohne Stromrichter
AB
PE
U
S
2A
L1
L2
L3
N
Type: AGH676S-4
Nominal voltage: AC 12 kV
Operative uncertainty: 15 % min. +/- 5 kΩ
Art.-No.: B 913 055
12.5 Connection using the AGH204S-4
12.6 Connection using the AGH676S-4
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13. Alarm messages
13.1 Measured value alarms
Alarm messages are activated directly after switching on and can occur immediately.
Alarm message
Insulation fault
Insulation fault
DC offset voltage There is a DC offset voltage in the system.
Description Measures
An insulation fault exists. The insulation resistance falls
below the response value R
An insulation fault exists. The insulation resistance falls
below the response value R
an1
an2
.
.
13.2 General
Alarm messages are activated directly after switching on and can occur immediately.
Alarm message
Undervoltage Operating outside the specified supply voltage range
Overvoltage Operating outside the specified supply voltage range
Check L1-L2-L3 for correct
connection!
Check E-KE connections for
interruptions!
The profile does not suit the
application!
Load on X1 too high! Sum of the external loads on "X1" too high
Check date and time! Date and time have not been set yet
No DHCP server found! Connection problem at the Ethernet interface
Description Measures
No low-resistance connection between the
line conductors^
No low-resistance connection between terminals
"E" and "KE" to earth (PE)
Wrong profile selected for this application
• Observe insulation resistance in the monitored system
• Reset fault message by pressing the reset button
• Eliminate insulation fault in the system being monitored
• Reset fault message by pressing the reset button
• Check insulation fault and eliminate fault of DC components
• Check supply voltage
• Check supply voltage
• Check the wiring of terminals "L1/+", "L2" and "L3/-" to the
IT system
• Press the TEST button
• Check nominal system voltage
•Check fuses
• Check set system type
• Check the wiring of terminals "E" and "KE" to earth (PE)
• Press the TEST button
• Check measured system capacitance or mains frequency
in the "Info" menu
• Select another profile taking into consideration the characteristics
• Check load on X1.+, X1.Q1 and X1.Q2
• Check ambient temperature
• Set local date and time
(in case of voltage failure buffer for three days)
• Check cable connection at the Ethernet interface
• Check the DHCP server availability
• Check the DHCP interface configuration in the device
LED indicators
"ALARM 1" is lit
"ALARM 2" is lit
LED indicators
"ALARM 1" + "ALARM 2" flash
alternately
"ALARM 1" + "ALARM 2" flash
in common mode
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Alarm messages
Alarm message
Device error x.xx Internal device error
DC offset voltage There is a DC offset voltage in the system.
Synchronizing ...
BCOM connection
interrupted!
Service mode active! The device is in maintenance condition
Description Measures
The device synchronises over a longer period of time.
(longer than five minutes)
No connection to devices can be made within the BCOM
system due to
- an interrupted bus conductor
- incorrect Ethernet settings
- incorrect grouping
13.3 ISOnet
These messages only become active after activating the ISOnet function.
Alarm message
Disturbance ISOnet
Failure address
Num. ISOnet devices
Description Measures
Ethernet connection of the ISOMETER® is disturbed (e.g. due
to a cable defect or the failure of a switch)
Active ISOnet interconnection devices detect that one or
more devices are no longer accessible. This message is the
counter-information on the active devices to the message
"Disturbance ISOnet"
The configuration between existing ISOnet devices and set
ISOnet devices is different
• Press the TEST button
• Switch the supply voltage off and on
•Contact Bender service
• Check insulation fault and eliminate fault of DC components
•Restart
• Connect bus conductor correctly
• Correct Ethernet settings
• Restore configuration using the BCOM Group Manager
•Contact Bender service
• Check Ethernet connection
• Check device function
• Switch the supply voltage off and on
• Check Ethernet connection
• Check device function
•Check settings
• Check Ethernet connection
LED indicators
"SERVICE" is lit
"SERVICE" is lit
LED indicators
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Alarm messages
13.4 ISOloop
These messages only become active after activating the ISOloop function.
Alarm message
ISOloop configuration is not
uniform!
ISOloop configuration is
faulty!
The ISOloop configuration
was not found!
Error while distributing the
ISOloop configuration!
Description Measures
• Make sure that all devices in the group to be configured
The ISOloop group configuration is not uniform for all
devices in the group or one of the devices has no configuration
Addresses of the group configuration (system-subsystemdevice address) do not match the addresses on the devices
in this group
There is no ISOloop configuration on this device
The ISOloop configuration could not be distributed to all
devices (devices were not switched on or faulty BCOM connection) OR function was not activated when uploading the
configuration file OR function was not activated on all
devices during upload
are able to communicate (correctly set and BCOM and
Ethernet connection established).
• Afterwards, upload ISOloop configuration to a device via
the web server
• see above
• see above
• see above
LED indicators
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14. Technical data
Switching between profiles
When switching a profile, the value of R
min
is reset.
Switching a profile may result in longer measuring times.
* Low-frequency system voltages
For very low-frequency systems, the nominal system voltage is reduced in
accordance with the specifications in this chapter .
14.1 Device profiles
Adjustment to different applications can be carried out very easily by selecting a device profile.
Nominal system
voltage
Power circuits
Control circuits
Generator AC 0…690 V 50…60 Hz 0…5 µF ±50 V 0.1 kΩ…20 MΩ 1 kΩ…10 MΩ
High capacitance
Inverter > 10 Hz
Inverter < 10 Hz
Customer-specific ––––––
AC 0…690 V/
DC 0…1000 V
AC 0…230 V/
DC 0…230 V
AC 0…690 V/
DC 0…1000 V
AC 0…690 V/
DC 0…1000 V
AC 0…690 V/
DC 0…1000 V
Mains
frequency
15…460 Hz 0…150 µF ±50 V 0.1 kΩ…20 MΩ 1 kΩ…10 MΩ
15…460 Hz 0…150 µF ±10 V 0.1 kΩ…20 MΩ 1 kΩ…10 MΩ
15…460 Hz 0…1000 µF ±50 V 0.1 kΩ…20 MΩ 1 kΩ…10 MΩ
10…460 Hz 0…20 µF ±50 V 0.1 kΩ…20 MΩ 1 kΩ…10 MΩ
0.1…460 Hz 0…20 µF ±50 V 0.1 kΩ…20 MΩ 1 kΩ…10 MΩ
System
leakage
capacitance
Measurin
g voltage
Measuring
range
Response
values
Description
Main circuits without dynamic frequency changes.
The universal profile is suitable for all systems primarily with constant
mains frequencies and extraneous DC voltages. When using inverters and
dynamic frequency control, select Inverter > 10 Hz or Inverter < 10 Hz.
This profile is used to reduce the measurement voltage to ±10 V in control systems with lower nominal voltages in order to reduce the impact
by the ISOMETER® on sensitive switching elements.
This profile allows the realisation of a very fast measuring time, e.g. as
required for generator monitoring. Furthermore, this profile can be used
to support fast fault location in an IT system. The generator profile is suitable for AC systems containing DC components.
For systems with high system leakage capacitances, e.g. ship applications, the impact of system leakage capacitances on the measuring result
can be significantly reduced by selecting this profile.
This profile is used for systems with dynamic frequency control by inverters in the range 10 to 460 Hz in order to optimise the measurement with
respect to the measuring time and quality.
For systems involving extremely low-frequency control in the range of up
to 0.1...460 Hz and very low and continuously changing extraneous DC
voltages due to dynamic load conditions in an IT system, continuous
insulation monitoring can be optimised using this profile. *
Enables th
tings. If no settings have been made by the Bender service, the profile has
the same parameters as the "Power circuits" profile.
ender service to make customer-specific measurement set-
e B
For response times, refer „Device profiles“ at the follwing sections.
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14.2 Diagrams
Ce ≤ 150 μF
C
e
≤ 50 μF
C
e
≤ 20 μF
C
e
≤ 5 μF
C
e
≤ 1 μF
1
10
100
100001000100101
Response time depending on response value and system leakage capacitance
acc. to IEC 61557-8 (Un = 690 V, f = 50 Hz) measuring range < 10 MΩ
Response time [sec]
Response value Ran [kΩ]
Ce ≤ 150 μF
C
e
≤ 50 μF
C
e
≤ 20 μF
C
e
≤ 5 μF
C
e
≤ 1 μF
1
10
100
100001000100101
Response time depending on response value and system leakage capacitance
acc. to IEC 61557-8 (Un = 230 V, f = 50 Hz) measuring range < 10 MΩ
Response time [sec]
Response value Ran [kΩ]
Ce ≤ 5 μF
C
e
≤ 1 μF
0,1
1
10
100001000100101
Response time depending on response value and system leakage capacitance
acc. to IEC 61557-8 (Un = 690 V, f = 50 Hz) measuring range < 10 MΩ
Response time [sec]
Response value Ran [kΩ]
Ce ≤ 1000 μF
C
e
≤ 500 μF
C
e
≤ 150 μF
C
e
≤ 50 μF
C
e
≤ 20 μF
Ce ≤ 5 μF
Ce ≤ 1 μF
10
100
1000
100001000100101
Response time depending on response value and system leakage capacitance
acc. to IEC 61557-8 (U
n
= 690 V, f = 50 Hz) measuring range < 10 MΩ
Response time [sec]
Response value Ran [kΩ]
Technical dataTechnical data
14.2.1 Response time profile power circuits
14.2.2 Response time control circuits profile
14.2.3 Response time generator profile
14.2.4 Response time high capacitance profile
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Technical dataTechnical data
Ce ≤ 20 μF
C
e
≤ 5 μF
C
e
≤ 1 μF
n n
1
10
100
100001000100101
Response time depending on response value and system leakage capacitance
acc. to IEC 61557-8 (Un = 690 V, f = 50 Hz) measuring range < 10 MΩ
Response time [sec]
Response value Ran [kΩ]
1
10
100
100001000100101
Ce ≤ 20 μF
C
e
≤ 5 μF
C
e
≤ 1 μF
Response time depending on response value and system leakage capacitance
acc. to IEC 61557-8 (Un = 690 V, f = 50 Hz) measuring range < 10 MΩ
Response time [sec]
Response value Ran [kΩ]
0,1
1
10
100
1000
0,1 1 10 100
Leistungskreis
Steuerkreis
Hohe Kapazität
Umrichter >10Hz
Umrichter <10Hz
Generator
Typical response times DC alarm at RF depending on the measurement profile
and the system leakage capacitance
Response time [sec]
System leakage capacitance [µF]
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0000010000100010010111,0
Ce ≤ 1000 μF
Ce ≤ 1 μF
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0000010000100010010111,0
Ce ≤ 1000 μF
Ce ≤ 1 μF
Response time depending on response value and system leakage capacitance
acc. to IEC 61557-8 (Un = 690 V, f = 50 Hz) measuring range < 10 MΩ
Operating uncertainty [%]
Response value Ran [kΩ]
14.2.5 Response time inverter > 10 Hz profile
14.2.6 Response time inverter < 10 Hz profile
14.2.7 Response time DC alarm
14.2.8 Relative uncertainty
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Technical dataTechnical data
14.3 Factory settings iso685-x-B
Parameter Wert
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
System
System type 3AC
System profile Power circuit
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 outputs
Digital output 1
Function 1 off
Function 2 off
Function 3 off
Digital output 2
Function 1 off
Function 2 off
Function 3 off
an1
an2
start-up
(ALARM 1)
(ALARM 2)
40 kΩ
10 kΩ
≤ 0 s
Parameter Wert
Switching elements
Relay 1
Test on
Relay mode N/C operation
Function 1 Ins. alarm 1
Function 2 Connection fault
Function 3 off
Relay 2
Test on
Relay mode N/C operation
Function 1 Ins. alarm 2
Function 2 Device fault
Interface
DHCP off
IP-Address 192.168.0.5
Subnetzmask 255.255.255.0
BCOM-Adress system-1-0
Geräteaddress BS-Bus 1
isoData Mode 1
Modbus RTU
Address 100
Baudrate 19,2 kBaud
Parity even
Stoppbits 1
ISOnet off
ISOloop off
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Technical dataTechnical data
14.4 Tabular data iso685-x-B
Insulation coordination acc. 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 outside (U
Pollution degree outside (U
Safe isolation (reinforced insulation) between:
IC1/(IC2-5)...............................................................................................................................................Overvoltage category III, 1000 V
IC2/(IC3-5).................................................................................................................................................Overvoltage category III, 300 V
IC3/(IC4-5).................................................................................................................................................Overvoltage category III, 300 V
IC4/IC5 .......................................................................................................................................................Overvoltage category III, 300 V
Voltage test (routine test) acc. 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
................................................................................................................................................................... -30…+15 %
S
Maximum permissible input current of U
Frequency range of U
Tolerance of the frequency range of Us................................................................................................................................. -5…+15 %
Typical power consumption DC .....................................................................................................................................................≤ 12 W
Typical power consumption 50/60 Hz .............................................................................................................................. ≤ 12 W/21 VA
Typical power consumption 400 Hz .................................................................................................................................. ≤ 12 W/45 VA
< 690 V) .................................................................................................................................................... 3
n
> 690 < 1000 V) ......................................................................................................................................2
n
...............................................................................................................................................AC/DC 24…240 V
s
.................................................................................................................................... 650 mA
................................................................................................................................................. DC, 50…400 Hz
s
s
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 U
.......................................................................................................... AC 0…690 V, DC 0…1000 V
n
........................................................................................................................................................ AC/DC 0…600 V for UL applications
Tolerance of U
Frequency range of U
Max. AC voltage U
.....................................................................................................................................................................AC/DC ±15 %
n
....................................................................................................................................................DC 0.1…460 Hz
n
in the frequency range fn = 0.1… 4 Hz ................................................................. U
~
= 50 V *(1+ fn²/Hz²)
~ max
Response values
Response value R
Response value R
(alarm 1) ...........................................................................................................................................1 kΩ…10 MΩ
an1
(alarm 2) ...........................................................................................................................................1 kΩ…10 MΩ
an2
Relative uncertainty (acc. to IEC 61557-8) ...........................................................................profile-dependent, ±15 %, at least ±1 kΩ
Hysteresis ...................................................................................................................................................................... 25 %, at least 1 kΩ
Time response
Response time t
at RF = 0.5 x Ran (Ran = 10 kΩ) and Ce = 1 μF according to IEC 61557-8 ................................................................
an
................................................................................................................................................ profile-dependent, typ. 4 s (see diagrams)
Response time DC alarm at C
Start-up delay T
start-up
= 1 μF................................................................................... profile-dependent, typ. 2 s (see diagrams)
e
............................................................................................................................................................... 0…120 s
Measuring circuit
Measuring voltage U
Measuring current I
Internal resistance R
.................................................................................... profile-dependent, ±10 V, ±50 V (see profile overview)
m
...................................................................................................................................................................≤ 403 μA
m
,Zi...............................................................................................................................................................≥ 124 kΩ
i
Internal resistance with system isolation (inactive via I/O; inactive via ISOnet; shutdown) ..................................................typ. 50 MΩ
Permissible extraneous DC voltage U
Permissible system leakage capacitance C
.......................................................................................................................................≤ 1200 V
fg
.......................................................................................... profile-dependent, 0…1000 μF
e
Measuring ranges
Measuring range f
Tolerance measurement of f
Voltage range measurement of f
Measuring range U
Voltage range measurement of U
Tolerance measurement of U
Measuring range C
Tolerance measurement of C
Frequency range measurement of C
1)
Min. insulation resistance measurement of C
............................................................................................................................................................... 0.1…460 Hz
n
............................................................................................................................................. ±1 % ±0.1 Hz
n
......................................................................................................................................AC 25…690 V
(without external coupling device)........................................................................AC 25…690 V, DC 0…1000 V
n
................................................................................................................................................................0…1000 μF
e
n
..................................................................................................................................... AC/DC > 10 V
n
................................................................................................................................................ ±5 % ±5 V
n
........................................................................................................................................... ±10 % ±10 μF
e
..............................................................................................................................DC, 30…460 Hz
e
................................................ depending on profile and coupling mode, typ. > 10 kΩ
e
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Technical dataTechnical data
Display
Indication ....................................................................................................................... graphic display 127 x 127 pixels, 40 x 40 mm
Display range measured value .........................................................................................................................................0.1 kΩ…20 MΩ
Operating uncertainty (acc. to IEC 61557-8)................................................................................................................±15 %, min. 1 kΩ
LEDs
ON (operation LED) ............................................................................................................................................................................green
SERVICE.............................................................................................................................................................................................yellow
ALARM 1 ........................................................................................................................................................................................... yellow
ALARM 2 ........................................................................................................................................................................................... yellow
Inputs/outputs (X1-Interface)
Cable length X1 (unshielded cable) .............................................................................................................................................. ≤ 10 m
Recommended cable (shielded, shield connected to PE on one side: J-Y(St)Y min. 2x0.8)..................................................... ≤ 100 m
Total max. supply output current via X1.+/X1.GND for each output..........................................................................................max. 1 A
Total max. supply output current via A1/A2 in total on X1 .................................................................................................max. 200 mA
Total max. supply output current via A1/A2 in total on X1 between 16.8 V and 40 V ............................................................................
............................................................................................................................................................. I
............................................................................................................................................ (negative values are not allowed for I
= 10mA + 7mA/V * Us
LmaxX1
LmaxX1
Digital inputs (I1, I2, I3)
Number ...................................................................................................................................................................................................... 3
Operating mode, adjustable................................................................................................................................... active high, active low
Functions .....................................................................................................off, test, reset, deactivate device, start initial measurement
Voltage........................................................................................................................................... Low DC -3…5 V, High DC 11…32 V
Voltage tolerance ...........................................................................................................................................................................± 10 %
Digital outputs (Q1, Q2)
Number ...................................................................................................................................................................................................... 2
Operating mode, adjustable active, passive
Functions .........................................off, Ins. alarm 1, Ins. Alarm 2, connection fault, DC- alarm
4)
, DC+ alarm 4), symmetrical alarm,
........................................................................ device fault, common alarm, measurement complete, device inactive, DC offset alarm
Voltage passive............................................................................................................................. DC 0…32 V, active DC 0/19.2…32 V
Analogue output (M+)
Number ...................................................................................................................................................................................................... 1
Operating mode................................................................................................................................linear, midscale point 28 kΩ/120 kΩ
Functions .............................................................................................................................................................insulation value, DC shift
Current 0...20 mA (< 600 Ω), 4…20 mA (< 600 Ω), 0…400 μA (< 4 kΩ)
Voltage 0…10 V (>1 kΩ), 2…10 V (>1 kΩ)
Tolerance related to the current/voltage final value ....................................................................................................................± 20 %
Interfaces
Field bus:
Interface/protocol.................................................................................................................................... web server/Modbus TCP/BCOM
Data rate........................................................................................................................................................... 10/100 Mbit/s, autodetect
2)
Max. amount Modbus requests ....................................................................................................................................................< 100/s
Cable length ................................................................................................................................................................................. ≤ 100 m
Connection ........................................................................................................................................................................................... RJ45
IP address .................................................................................................................................................... DHCP/manual* 192.168.0.5*
Network mask ...................................................................................................................................................................255.255.255.0*
BCOM address ...........................................................................................................................................................................system-1-0
Function ..............................................................................................................................................................communication interface
ISOnet
Number of ISOnet devices ........................................................................................................................................................ 2…20 dev
Maximum nominal system voltage ISOnet ............................................................................................................ AC, 690 V/DC, 1000 V
ISOloop
ISOloop devices......................................................................................................................................................................... 2…10 dev
Sensor bus:
Interface/protocol .............................................................................................................................................................. RS-485/BB bus
Data rate mode 1 ..................................................................................................................................................................... 9.6 kbaud/s
3)
)
Cable length (depending on the baud rate) ..............................................................................................................................≤ 1200 m
Cable: twisted pair, one end of shield connected to PE................................................................... recommended: J-Y(St)Y min. 2x0.8
Connection ................................................................................................................................................................. terminals X1.A, X1.B
Terminating resistor............................................................................................................................120 Ω, can be connected internally
Device address .................................................................................................................................................................................1…90
Switching elements
Number of switching elements..............................................................................................................................2 changeover contacts
Operating mode.......................................................................................................................................... N/C operation/N/O operation
Contacts 11-12-14 / 21-22-24......................................... off, ins. alarm 1, ins. alarm 2, connection fault, DC- alarm
4)
, DC+ alarm
4)
............................................................................................ symmetrical alarm, device fault, common alarm, measurement complete,
................................................................................................................................................................... device inactive, DC offset alarm
Electrical endurance under rated operating conditions, number of cycles.................................................................................... 10.000
Contact data acc. to IEC 60947-5-1:
Utilisation category................................................................................................................... AC-13 / AC-14 / DC-12 / DC-12 / DC-12
Rated operational voltage ..............................................................................................................230 V / 230 V / 24 V / 110 V / 220 V
Rated operational current ........................................................................................................................... 5 A / 3 A / 1 A / 0.2 A / 0.1 A
Rated insulation voltage ≤ 2000 m NN ........................................................................................................................................... 250 V
Rated insulation voltage ≤ 3000 m NN ........................................................................................................................................... 160 V
Minimum contact rating ...................................................................................................................................... 1 mA at AC/DC ≥ 10 V
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Technical dataTechnical data
Environment/EMC and temperature ranges
EMC ................................................................................................................................................................................. IEC 61326-2-4
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 (no condensation and formation of ice possible)
Transport (IEC 60721-3-2) ................................................................................................................................................................ 2K11
Long-term storage (IEC 60721-3-1) ................................................................................................................................... .............. 1K22
Classification of mechanical conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3)...........................................................................................................................................................3M4
Transport (IEC 60721-3-2)...................................................................................................................................................................2M4
Long-term storage (IEC 60721-3-1) .................................................................................................................................................1M12
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 ferrule, 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 ferrule, with/without plastic sleeve.............................................................................
co
Multiple
nductor, flexible with TWIN ferrule with plastic sleeve..................................................................................0.5…1.5 mm²
...............................0.25…2.5 mm²
Push-wire terminals X1:
Nominal current................................................................................................................................................................................. ≤ 8 A
Conductor sizes.........................................................................................................................................................................AWG 24-16
Stripping length............................................................................................................................................................................... 10 mm
rigid/flexible .......................................................................................................................................................................0.2…1.5 mm²
flexible with ferrule without plastic sleeve......................................................................................................................0.25…1.5 mm²
flexible with TWIN ferrule with plastic sleeve ...............................................................................................................0.25…0.75 mm²
5)
Other
Operating mode........................................................................................................................................................continuous operation
Mounting position (0°)...........................................................................display-oriented, cooling slots must be ventilated vertically
6)
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 and remote must be insulated. Only permanently installed devices which at least
have overvoltage category CAT2 (300 V) may be connected.
2)
Indication limited outside the temperature range -25…+55 °C.
3)
Us [Volt] = supply voltage ISOMETER®
4)
Only for Un ≥ 50 V.
5)
This is a class A product. In a domestic environment, this product may cause radio interference. In this case, the user may be re-
quired to take corrective actions.
6)
Recommendation: Mounting position 0° (display-oriented, cooling slots must be ventilated vertically).
At mounting position 45°, the max. operating temperature is reduced by 10 °C.
At mounting position 90°, the max. operating temperature is reduced by 20 °C.
"W" option data deviating from the standard version
Devices with the suffix "W“ feature increased shock and vibration resistance. The electronics is covered with a special varnish to provide increased protection against mechanical stress and moisture. (Refer the following information box)
Rated operational current switching elements. ........................................................................................ max. 3 A (for UL applications)
Ambient temperatures:
Operating temperature .......................................................................................................................................................-40…+70 °C
........................................................................................................................................................... -40…+65 °C (for UL applications)
Transport ..............................................................................................................................................................................-40…+85 °C
Long-term storage...............................................................................................................................................................-40…+70 °C
Classification of climatic conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3) ................................................................................... K5 (condensation and formation of ice possible)
Classification of mechanical conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3) .......................................................................................................................................................... 3M7
Combination of ISOMETER® sensor variant with an FP200W:
The requirements of the "W" option will only be fulfilled if the ISOMETER® sensor variant is mounted on
DIN rail and connected to the FP200W via the patch cable.
Refer also to the quick-start guide FP200 (document number D00169).
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Technical dataTechnical data
14.5 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 Cor 1 (VDE 0413-8 Cor 1): 2016-12
Subject to change! The specified standards take into account the edition valid until De-
cember/17 unless otherwise indicated.
14.6 Ordering details
14.6.1 Device
Model
iso685-D-B AC 24…240 V; 50…400 Hz; DC 24…240 V B91067020
iso685W-D-B* AC 24…240 V; 50…400 Hz; DC 24…240 V B91067020W
Combination
iso685-S-B + FP200
Combination
iso685W-S-B + FP200W
* Option „W“: Increased shock and vibration resistance 3K5; 3M7; -40…+70 °C
Supply voltage U
AC 24…240 V; 50…400 Hz; DC 24…240 V B91067220
AC 24…240 V; 50…400 Hz; DC 24…240 V B91067220W
S
Article No.
14.6.3 Suitable system components
Description Type Article No.
Suitable measuring instruments
Midscale point: 28 kΩ,120 kΩ
Current values: 0…400 A, 0…20 mA
Display for front panel mounting
ISOMETER® sensor variant
AC 24…240 V; 50…400 Hz; DC 24…240 V
ISOMETER® sensor variant
AC 24…240 V; 50…400 Hz; DC 24…240 V
Only in combination with FP200W
* Option „W“: Increased shock and vibration resistance 3K5; 3M7; -40…+70 °C
7204-1421 B986763
9604-1421 B986764
9620-1421 B986841
FP200 B91067904
FP200W * B91067904W
iso685-S-B B91067120
iso685W-S-B * B91067120W
14.6.2 Accessories
Description Article 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
Front cover 144x72 transparent (IP65) for FP200 ** B98060005
* included in the scope of delivery
** When using the "transparent front cover 144x72 (IP65)" the cutout in the switchboard cabinet
must be extended in height from 66 mm to 68 mm (+ 0.7/-0 mm).
B91067903
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15. Glossary
BB bus The BB bus is an interface which enables Bender devices to communicate
with each other (Bender-internal device bus).
The BB bus can be used with an ISOMETER® and one or more EDS44…-S.
BCOM Protocol for communication between Bender devices via an IP-based
network.
BS bus The Bender sensor bus is an interface which enables Bender devices to
communicate with each other (RS-485 interface).
DHCP Dynamic Host Configuration Protocol. It is used to assign the network
configuration to Clients via a server.
ISOnet Only one ISOMETER® may exist in an isolated system. If several networks
monitored by an ISOMETER® are coupled, this function ensures via an
Ethernet connection that only one ISOMETER® is actively measuring.
ISOnet priority This function makes it possible to give permanent priority to a device in
ISOnet mode or to get priority.
After 12 hours, the device returns to normal mode.
ISOloop Special function for ring systems (all systems are coupled). The ISOloop
mode is activated via the information of the dig. input (switch state). If all
devices are in this mode, the device with the lowest BCOM address continues to measure.
Modbus TCP Modbus is an international widely spread protocol for data transfer via
TCP/IP.
Modbus RTU Spread protocol for data transfer via RS-485 protocol.
System (BCOM) The system is the entire installation that is visible for the customer and
defined by the customer. The BCOM communication takes place within
this system. Naturally, different systems can exist independently in one
network.
Subsystem (BCOM) The subsystem structures parts of the system as units defined by the cus-
tomer, e.g. all PQ devices. A typical subsystem are also "non BCOM-capable" devices that are hidden behind a proxy.
Webserver A web server presents the device functions graphically. The web server
can be used for reading out measured values and for parameter setting.
Glossary
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Bender GmbH & Co. KG
Postfach 1161 • 35301 Grünberg • Germany
Londorfer Straße 65 • 35305 Grünberg • Germany
Field Service
Service-Hotline: 0700-BenderHelp (Telefon und Fax)
Carl-Benz-Straße 8 • 35305 Grünberg • Germany
Tel.: +49 6401 807-0
Fax: +49 6401 807-259
E-Mail: [email protected]
Web: www.bender.de
Tel.: +49 6401 807-760
Fax: +49 6401 807-629
E-Mail: [email protected]
Web: http://www.bender.de
BENDER Group
Fotos: Bender Archiv und bendersystembau Archiv.
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