Bender ISOMETER isoMIL425 Manual Download Page 45

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isoMIL425_D00203_03_M_XXEN/03.2019

8. Modbus register assignment of the ISOMETER®

The information in the registers is the measuring value without alarm, the
measuring value with alarm 1, the measuring value with alarm 2 or only the
device fault, depending on the device condition.

Register

Measuring value

Device fault

Without

alarm

Alarm 1

Alarm 2

1000

1003

Insulation

fault (71)

[no alarm]

Insulation

fault (1)

[prewarning]

Insulation

fault (1)

[alarm]

---

Connection

earth (102)

[device

fault]

1004

1007

Insulation

fault (86)

[no alarm]

Insulation fault

(86)

[prewarning]

Insulation fault

(86)

[alarm]

---

1008

1011

Voltage (76)

[no alarm]

Undervoltage

(77)

[alarm]

Overvoltage

(78)

[alarm]

---

Connection

system (101)

[device

fault]

1012

1015

System

leakage

capacitance

(82)

[no alarm]

---

Summary of Contents for ISOMETER isoMIL425

Page 1: ...nsulation monitoring device for unearthed IT AC AC DC and DC systems IT systems in military applications up to 3 N AC AC DC 400 V Software version D0459 V1 xx ISOMETER isoMIL425 isoMIL425_D00203_03_M_XXEN 03 2019 ...

Page 2: ...ermany P O Box 1161 35301 Gruenberg Germany Tel 49 6401 807 0 Fax 49 6401 807 259 E mail info bender de Web http www bender de Bender GmbH Co KG All rights reserved Reprinting only with permission of the publisher Subject to change Photos Bender archives ...

Page 3: ... 10 2 Safety instructions 11 2 1 General safety instructions 11 2 2 Work activities on electrical installations 11 2 3 Intended use 12 3 Function 13 3 1 Device features 13 3 2 Functional description 14 3 2 1 Monitoring of the insulation resistance R mode 15 3 2 2 Monitoring of the insulation impedance Z mode 16 3 2 3 Undervoltage overvoltage monitoring 16 3 2 4 Self test error codes 17 3 2 5 Malfu...

Page 4: ...9 5 Operation of the device 30 5 1 Display elements 31 5 2 Menu structure 32 5 3 Menu AL 33 5 3 1 Response value setting 33 5 4 Menu out 34 5 4 1 Configuration of the relay operating mode 34 5 4 2 Relay alarm assignment r1 and r2 and LED assignment 34 5 4 3 Fault memory configuration 35 5 4 4 Interface configuration 36 5 5 Menu t 37 5 5 1 Time configuration 37 5 6 Menu SEt 38 5 6 1 Function config...

Page 5: ...aster 44 7 3 Exception code 44 7 3 1 Structure of the exception code 44 8 Modbus register assignment of the ISOMETER 45 8 1 Device specific data type of the ISOMETER 51 8 1 1 Device name 51 8 1 2 Measuring values 52 8 1 2 1 Float Floating point value of the channels 53 8 1 2 2 AT T Alarm type and test type internal external 54 8 1 2 3 R U Range and unit 55 8 1 3 Alarm assignment of the relays 56 8...

Page 6: ... of these symbols is explained below This manual is intended for electrically skilled persons working in electrical engineering and electronics DANGER This signal word indicates that there is a high risk of danger that will result in death or serious injury if not avoided WARNING This signal word indicates a medium risk of danger that can lead to death or serious injury if not avoided CAUTION This...

Page 7: ...In Germany only 0700BenderHelp Tel and Fax E Mail support bender service com 1 2 2 Repair service Repair calibration update and replacement service for Bender prod ucts Repairing calibrating testing and analysing Bender products Hardware and software update for Bender devices Delivery of replacement devices in the event of faulty or incorrectly delivered Bender devices Extended warranty for Bender...

Page 8: ...n in the building power quality test EMC test thermography Training courses for customers Telephone 49 6401 807 752 762 technical issues 49 6401 807 753 sales Fax 49 6401 807 759 E Mail fieldservice bender service com Internet www bender de com Available from 7 00 a m to 8 00 p m 365 days a year CET UTC 1 Mon Thurs 7 00 a m 8 00 p m Fr 7 00 a m 13 00 p m 1 3 Training courses Bender is happy to pro...

Page 9: ...m Bender in printed or elec tronic format 1 5 Inspection transport and storage Inspect the dispatch and equipment packaging for damage and compare the contents of the package with the delivery documents In the event of damage in transit please contact Bender immediately The devices must only be stored in areas where they are protected from dust damp and spray and dripping water and in which the sp...

Page 10: ...sure how to dispose of the old equip ment The directive on waste electrical and electronic equipment WEEE directive and the directive on the restriction of certain hazardous substances in electri cal and electronic equipment RoHS directive apply in the European Commu nity In Germany these policies are implemented through the Electrical and Electronic Equipment Act ElektroG According to this the fo...

Page 11: ...nd regulations must be complied with The European stand ard EN 50110 can be used as a guide Only skilled persons are permitted to carry out the work necessary to install commission and run a de vice or system DANGER Risk of electrocution due to electric shock Touching live parts of the system carries the risk of An electric shock Damage to the electrical installation Destruction of the device Befo...

Page 12: ...3 N AC AC DC systems do not influence the operating characteristics when a minimum load current of DC 10 mA flows A separate supply voltage Us allows deenergised systems to be monitored as well The maximum permissible system leakage capacitance Ce is 300 μF in R mode and 1μF in Z mode Any other use than that described in this manual is regarded as improper ToensurethattheISOMETER functionscorrectl...

Page 13: ...apacitance Ce up to 300 μF in R mode and 1μF in Z mode Automatic device self test with connection monitoring Selectable start up delay response delay and delay on release Two separately adjustable response ranges of 1 990 kΩ alarm 1 alarm 2 Alarm signalling via LEDs AL1 AL2 a display and alarm relays K1 K2 N C operation or N O operation can be selected for the relays Measured value indication via ...

Page 14: ...ve sign preceding the insula tion resistance measurement The value range of the faulty conductor is 100 The partialresistancescan becalculatedfromthe total insulation resistanceRF and the faulty conductor R using the following formula Also from a minimum value of the nominal system voltage the ISOMETER de termines the insulation resistance RUGF from the residual voltages UL1e and UL2e It is an app...

Page 15: ... protected Parameterisation is also possible via the BMS bus for example by using the BMS Ethernet gateway COM465IP or the Modbus RTU 3 2 1 Monitoring of the insulation resistance R mode The two parameters that monitor the insulation resistance R1 and R2 can be found in the response value menu AL see table on Page 33 The value R1 can only be set higher than the value R2 Each time the mode is switc...

Page 16: ... activated values Z1 or Z2 an alarm message will be signalled If ZF exceeds the values Z1 or Z2 plus the hysteresis value see table on Page 33 the alarm will be cleared 3 2 3 Undervoltage overvoltage monitoring In the response value menu AL see Page 33 the parameters U and U for monitoring the nominal system voltage Un can be activat ed or deactivated The maximum undervoltage value is limited by t...

Page 17: ...ror with the parameter Err in the out menu in the alarm assignment Error codes If contrary to expectations a device error should occur error codes will ap pear on the display Some of these are described below Error code Meaning E 01 PE connection error The connections E or KE to earth are interrupted Action Check connection eliminate error The error code will be erased automatically once the error...

Page 18: ...t off This allows the ISOMETER to enter measurement mode quickly after connecting the supply voltage Us Automatic self test After switching on the supply voltage Us the device runs a self test and re peats it every 24 h selectable off 1h 24 h Manual self test A self test is initiated by pressing the test button for a period greater than 1 5 s While pressing the internal test button T all display e...

Page 19: ...connection monitoring can be disconnected using the parameter nEt in the SEt menu 3 2 5 Malfunction In addition to the self test described above several functions in the insulation monitoring device are continuously checked during operation If a fault is de tected the device error Err will be signalled the error code E xx appears on the display as an identifier for the error type xx and the LEDs O...

Page 20: ...lays 3 2 7 Measuring and response times The measuring time is the period essential for the detection of the measuring value The measuring time is reflected in the operating time tae In R mode the measuring time for the insulation resistance value is mainly de termined by the required measuring pulse duration which depends on the in sulation resistance RF and system leakage capacitance Ce of the sy...

Page 21: ...ed for interference suppression in the case of short measuring times An alarm will only be signalled when a threshold value of the respective meas uring value is violated for the period of ton without interruption Every time the threshold value is violated within the time ton the response time ton re starts once again Every alarm message listed in the alarm assignment has its own timer for ton Del...

Page 22: ...ss the external button 1 5 s Reset with subsequent test Press the external button 1 5 s Stop measuring function Press and hold the external button The stop function can also be triggered by an interface command and in this case it can only be reset via the interface Only one ISOMETER may be controlled via a test reset button A galvanic parallel connection of several test or reset inputs for testin...

Page 23: ...ing device interface BMS bus protocol ASCII characters are used for the data transfer Modbus RTU Modbus RTU is an application layer messaging protocol and it provides Master Slave communication between devices that are connected together via bus systems and networks Modbus RTU messages have a 16 bit CRC Cyclic Redundant Checksum which guarantees the relia bility IsoData The ISOMETER continously se...

Page 24: ...lisactivated With a valid bus address i e not equal to 0 the menu item baud rate is displayed in the menu The parameter value forthebaudrateindicatestheactivatedBMSprotocol In this event the baud rate for the BMS protocol is set to 9 600 baud If the baud rate is set unequal to the modbus protocol with configurable baud rate is activated ...

Page 25: ...osition the rear mounting clips so that they project beyond the enclosure a second mounting clip is required see ordering information Fix the device with two M4 screws see the following sketch DANGER Risk of electric shock Touching uninsulated live conductors can result in death or serious injury Therefore avoid any physical contact with active conductors and ensure compliance with the regulations...

Page 26: ..._XXEN 03 2019 The dimension diagram sketch for screw mounting and DIN rail mounting are shown below All dimensions in mm The front plate cover can be opened at the lower part marked with an arrow 93 45 67 5 36 31 1 47 5 74 5 2 2 1 2 3 Click 2 x 1 x 100 107 Click M4 M4 ...

Page 27: ..._03_M_XXEN 03 2019 4 2 Wiring diagram For details about the conductor cross sections required for wiring refer to the technical data on Page 61 US 14 24 11 T R A B L1 KE A1 A2 14 24 11 K1 K2 E T R isoMIL425 L1 L2 Test Reset COM465IP on off L2 RS 485 E PE L1 L2 L3 ...

Page 28: ... cross section as for A1 A2 is to be used L1 L2 Connection to the 3 N AC AC or DC system to be monitored T R Connection for the external combined test and reset button 11 14 Connection to alarm relay K1 11 24 Connection to alarm relay K2 A B RS 485 communication interface with connectable terminating resistance Example Connection of a BMS Ethernet Gateway COM465IP For UL applications Only use 60 7...

Page 29: ...disturbances the pulse symbol will be blanked 3 Starting a manual self test by pressing the test button T Whilst the test button is pressed and held down all display elements available for this device are shown During the test the tES symbol flashes Any internal malfunctions detected are shown on the display as error codes see Page 17 The alarm relays are not checked during the test factory settin...

Page 30: ...ation and settings Up and down button to navigate up or down the menu settings increasing or decreasing values MENU Pressing the MENU Enter button for more than 1 5 s Starts menu mode or when the device already is in menu mode Exit menu item Esc Any recent changes will not be stored Pressing the MENU Enter button for less than 1 5 s Confirms menu selection or confirms modified value The areas of t...

Page 31: ...stem leakage capacitance Ce 2 Monitored conductor 3 Voltage type DC Voltage type AC 4 Measured values and units 5 Password protection is activated 6 In the menu mode the operating mode of the respective alarm relay is displayed 7 Communication interface With measured value isoData operation 8 The fault memory is activated 9 Status indicators 10 Identification for response values and response value...

Page 32: ...nd clearing the history memory ESC Go to the next higher menu level Enter or t 5 min k R Z kΩ R kΩ C μF U L1 L2 V UL1 V UL2 V R U R kΩ Standard display Measurement display Menu Esc Menu selection AL out t SEt InF HiS ESC Enter Esc Parameter selection P1 Pn ESC Optional Passwort Edit parameters Save parameters Enter Enter Enter Esc Funktion Button Confirm Enter Menu Esc Test Reset Select acknowledg...

Page 33: ...e set to position off but can then be set to on again FAC Factory setting Cs User settings Display Activation Setting value Description FAC Cs Range FAC Cs R1 ON R2 990 40 kΩ Pre alarm value Ran1 Hys 25 min 1kΩ R2 ON 1 R1 10 kΩ Alarm value Ran2 Hys 25 min 1kΩ Z1 OFF Z2 500 60 kΩ Pre alarm value Zan1 Hys 25 min 1kΩ Z2 OFF 10 Z1 50 kΩ Alarm value Zan2 Hys 25 min 1kΩ U OFF 10 U 30 V Alarm value under...

Page 34: ...e device can assign an asymmetrical insulation fault to the corresponding conductor L1 or L2 it will only signalthe respective alarm Otherwise the alarms L1 und L2 will be signalled commonly Relay K1 Relay K2 Description Display FAC Cs Display FAC Cs n c n c Operating mode of the relay n c n o K1 r1 K2 r2 LEDs Alarm description Display FAC Cs Display FAC Cs ON AL1 AL2 OFF ON Device error E xx r1 R...

Page 35: ...Ω ON r2 Z1 Ω OFF Pre alarm Z1 r1 Z2 Ω OFF r2 Z2 Ω ON Alarm Z2 r1 U V OFF r2 U V ON Alarm Un Undervoltage r1 U V OFF r2 U V ON Alarm Un Overvoltage r1 Test OFF r2 Test OFF Manually started device test r1 S AL OFF r2 S AL OFF Device start with alarm Display FAC Cs Description M OFF Memory function for alarm messages fault memory K1 r1 K2 r2 LEDs Alarm description Display FAC Cs Display FAC Cs ON AL1...

Page 36: ... Description Range FAC Cs Adr 0 3 90 3 Bus Adr Adr 0 deactivates BMS as well as Modbus and activates isoData with con tinuous data output 115k2 8E1 Adr 1 Baud rate BMS bus 9k6 7E1 1 2k 115k Modbus variable var Adr 2 8E1 8o1 8n1 8n2 8E1 ModBus 8E1 8 data bits even parity 1 stop bit 8o1 8 data bits odd parity 1 stop bit 8n1 8 data bits no parity 1 stop bit 8n2 8 data bits no parity 2 stop bit ...

Page 37: ...configuration FAC Factory setting Cs User settings Display Setting value Description Alarm assignment FAC Cs t 0 10 0 s Start up delay when starting the device ton 0 99 0 s Response delay K1 and K2 toff 0 99 0 s Delay on release K1 and K2 test OFF 1 24 24 h Repetition time device test ...

Page 38: ...ation Setting value Description FAC Cs Value range FAC Cs OFF 0 999 0 Password for parameter setting Z OFF 50 0 60 0 50 0 Hz Z mode Activate impedance calculation ZF andselectassociated system frequency fn nEt ON Test the system connec tion during device test S Ct ON Device test during device start FAC Restore factory settings SYS For Bender Service only ...

Page 39: ... 5 min The fault location will only be stored in the history memory HiS in R mode In Z mode ZF will only be stored in the his tory memory The pulse symbol indicates a current measured value If this symbol does not appear the measurement is still running and the latest valid measured value will be displayed The symbols or will be displayed ad ditionally to the measured value when a response value h...

Page 40: ...ution 1 nF U L1 L2 V Nominal system voltage L1 L2 Un 0 VRMS 500 VRMS Resolution 1 VRMS U L1 V Residual voltage L1 PE UL1e 0 VDC 500 VDC Resolution 1 VDC U L2 V Residual voltage L2 PE UL2e 0 VDC 500 VDC Resolution 1 VDC R Fault location in 100 100 Indication only from Un 20 VDC RL1F 200 RF 100 x RL2F 200 RF 100 x U R kΩ Insulation resistance RUGF 1 kΩ 4 MΩ Resolution 1 kΩ 10 kΩ Indication only from...

Page 41: ... BMS bus protocol ASCII characters are used for the data transfer BMS channel no Operation value Alarm 1 RF Pre alarm R1 2 RF Alarm R2 3 ZF Alarm Z2 4 Un Undervoltage 5 Un Overvoltage 6 Connection fault earth E 01 7 Connection fault system E 02 8 All other device faults E xx 9 Fault location 10 Ce 11 ZF Pre alarm Z1 12 Update counter 13 UL1e 14 UL2e 15 RUGF ...

Page 42: ...SOMETER holding registers using the function code 0x03 For this purpose the start address and the number of the registers to be read out have to be entered Up to 125 Words 0x7D can be read out by one single request 7 1 1 Command of the master to the ISOMETER In the following example the ISOMETER master requests the content of the register1003 withthe address3 The register containsthechannel descri...

Page 43: ...table on Page 45 7 2 1 Command of the master to the ISOMETER In this example in the ISOMETER with address 3 the content of the register address 3003 is set to 2 Byte Name Example Byte 0 ISOMETER Modbus address 0x03 Byte 1 Function code 0x03 Byte 2 Number of data bytes 0x02 Byte 3 4 Data 0x0047 Byte 7 8 CRC16 Checksum 0x81B6 Byte Name Example Byte 0 ISOMETER Modbus address 0x03 Byte 1 Function code...

Page 44: ...METER Modbus address 0x03 Byte 1 Function code 0x10 Byte 2 3 Start register 0x0BBB Byte 4 5 Number of registers 0x0001 Byte 6 7 CRC16 Checksum 0x722A Exception code Description 0x01 Impermissible function 0x02 Impermissible data access 0x03 Impermissible data value 0x04 Internal fault 0x05 Acknowledgement of receipt answer will be time delayed 0x06 Request not accepted repeat request if necessary ...

Page 45: ...ter Measuring value Device fault Without alarm Alarm 1 Alarm 2 1000 to 1003 RF Insulation fault 71 no alarm RF Insulation fault 1 prewarning RF Insulation fault 1 alarm Connection earth 102 device fault 1004 to 1007 ZF Insulation fault 86 no alarm ZF Insulation fault 86 prewarning ZF Insulation fault 86 alarm 1008 to 1011 Un Voltage 76 no alarm Un Undervoltage 77 alarm Un Overvoltage 78 alarm Conn...

Page 46: ...ter 8 2 Alarm type refer to Chapter 8 1 2 2 1016 to 1019 UL1e Voltage 76 no alarm 1020 to 1023 UL2e Voltage 76 no alarm 1024 to 1027 Faultlocation in 1022 no alarm 1028 to 1031 RUGF Insulation fault 71 no alarm 1032 to 1035 Device fault 115 device fault Register Measuring value Device fault Without alarm Alarm 1 Alarm 2 ...

Page 47: ...000 RW Activation of pre alarm value impedance meas urement Z1 UINT 16 2 3 3001 RW Pre alarm value impedance measurement Z1 UINT 16 kΩ Z2 500 3002 RW Activation of alarm value impedance meas urement Z2 UINT 16 2 3 3003 RW Alarm value impedance measurement Z2 UINT 16 kΩ 10 Z1 3004 RW Activation Pre alarm value resistance measurement R1 UINT 16 0 1 2 3 3005 RW Pre alarm value resistance measurement ...

Page 48: ...oltage U UINT 16 0 1 3009 RW Alarm value undervoltage UINT 16 V 10 U 3010 RW Activation alarm value overvoltage U UINT 16 0 1 3011 RW Alarm value Overvoltage U UINT 16 V U 500 3012 RW Memory function for alarm mes sages Fault memory M UINT 16 0 1 3013 RW Operating mode of relay 1 r1 UINT 16 0 n o 1 n c 3014 RW Operating mode of relay 2 r2 UINT 16 0 n o 1 n c 3015 RW Bus address Adr UINT 16 0 3 90 ...

Page 49: ... 1 8O1 2 8E1 3 8N2 3018 RW Start up delay t during device start UINT 16 s 0 10 3019 RW Response delay ton for relays K1 and K2 UINT 16 s 0 99 3020 RW Delay on release toff for relays K1 and K2 UINT 16 s 0 99 3021 RW Repetition time test for automatic device test UINT 16 0 OFF 1 1h 2 24 h 3022 RW Parameter Z Activation of Z mode for impedance calculation UINT 16 0 1 Register Permissions Description...

Page 50: ...e test dur ing device start S Ct UINT 16 0 1 3026 RW Request stop mode 0 deacti vate device UINT 16 0 Stop 1 3027 RW Alarmassignment of relay 1 r1 UINT 16 Bit 11 Bit 1 3028 RW Alarmassignment of relay 2 r2 UINT 16 Bit 11 Bit 1 8004 WO Factory setting only for parame ters resettable by FAC UINT 16 0x4653 FS 8005 WO Start device test UINT 16 0x5445 TE 8006 WO Clear fault mem ory UINT 16 0x434C CL Re...

Page 51: ...ce name is specified below 9800 to 9809 RO Device name UNIT 16 ASCII refer to Chapter 8 1 1 9820 RO Software ID number UINT 16 Software ID number 9821 RO Software version number UINT 16 Software version 9822 RO Software version Year UINT 16 9823 RO Software version Month UINT 16 9824 RO Software version Day UINT 16 9825 RO Modbus driver version UINT 16 Word 0x00 0x01 0x02 0x03 0x08 0x09 10 Words i...

Page 52: ...gisters The first measuring value register address is 1000 The structure of a channel is always identical Content and number depend on the device The structure of a channel is shown with the example of channel 1 1000 1001 1002 1003 HiByte LoByte HiByte LoByte HiByte LoByte HiByte LoByte Floating point value Float Alarm typeand testtype AT T Range and unit R U Channel description ...

Page 53: ...ating point value of the channels Presentation of the bit order for processing analogue measuring values ac cording to IEEE 754 S Sign E Exponent M Mantissa Word 0x00 0x01 Byte HiByte LoByte HiByte LoByte Bit 31 30 24 23 22 16 15 8 7 0 S E E E E E E E E M M M M M M M M M M M M M M M M M M M M M M M ...

Page 54: ... values are reserved The complete byte is calculated from the sum of the alarm type and the test type Bit 7 6 5 4 3 2 1 0 Meaning Test external Test internal Reserved Reserved Reserved Alarm Errors Alarm type X X X X X 0 0 0 No alarm X X X X X 0 0 1 Prewarning 0 0 X X X 0 1 0 Device error X X X X X 0 1 1 Reserved X X X X X 1 0 0 Warning X X X X X 1 0 1 Alarm X X X X X 1 1 0 Reserved X X X X X Rese...

Page 55: ...unit and the range of validity Bit 7 6 5 4 3 2 1 0 Meaning Unit 0 0 0 0 0 Invalid init 0 0 0 0 1 No unit 0 0 0 1 0 Ω 0 0 0 1 1 A 0 0 1 0 0 V 0 0 1 0 1 0 0 1 1 0 Hz 0 0 1 1 1 Baud 0 1 0 0 0 F 0 1 0 0 1 H 0 1 0 1 0 C 0 1 0 1 1 F 0 1 1 0 0 Second 0 1 1 0 1 Minute 0 1 1 1 0 Hour 0 1 1 1 1 Day 1 0 0 0 0 Month Range of validity 0 0 X X X X X X Actual value 0 1 X X X X X X The actual value is lower 1 0 X...

Page 56: ...set bit activates the specified function Bit Display indication Meaning 0 Reserved When reading always 0 When writing any value 1 x Err Device error E xx 2 rx R1 Ω Pre alarm R1 Fault RF at L1 3 rx R1 Ω Pre alarm R1 Fault RF at L2 4 rx R2 Ω Alarm R2 Fault RF at L1 5 rx R2 Ω Alarm R2 Fault RF at L2 6 rx Z1 Ω Pre alarm Z1 7 rx Z2 Ω Alarm Z2 8 rx U V Alarm message Un Undervoltage 9 rx U V Alarm messag...

Page 57: ...e Parameter Measuring value description Alarm message Operating message Note 0 1 0x01 Insulation fault 71 0x47 Insulation fault Insulation resistance RF in Ω 76 0x4C Voltage Measured value in V 77 0x4D Undervoltage 78 0x4E Overvoltage 82 0x52 Capacitance Measured value in F 86 0x56 Insulation fault Impedance Zi 101 0x65 Connection system 102 0x66 Connection earth 115 0x73 Device error Fault ISOMET...

Page 58: ... Measured value parameter inactive 1020 0x3FC Measured value parameter only temporarily inactive e g while transmitting a new parameter Indication in the menu 1019 0x3FB Parameter measured value value unit not displayed 1018 0x3FA Parameter code selection menu unit not displayed 1017 0x3F9 String max 18 characters e g device type variant 1016 0x3F8 1015 0x3F7 Time 1014 0x3F6 Date Day 1013 0x3F5 Da...

Page 59: ...menu item Adr when it has been set to Adr 0 In this event the symbol Adr flashes on the measuring value dis play String Description Start symbol v Insulation fault location 1234 5 Insulation resistance RF kΩ 1234 System leakage capacitance Ce R mode μF Z mode nF 1234 5 Insulation impedance ZF kΩ 1234 Nominal system voltage Un VRMS Nominal system voltage type AC or unknown DC 1234 Residual voltage ...

Page 60: ...rning insulation resistance RF symmetrical 0x0010 Alarm insulation resistance RF at L1 0x0020 Alarm insulation resistance RF at L2 0x0030 Alarm insulation resistance RF symmetrical 0x0040 Prewarning insulation impedance ZF 0x0080 Alarm insulation impedance ZF 0x0100 Alarm undervoltage Un 0x0200 Alarm overvoltage Un 0x0400 Message system test 0x0800 Device start with alarm 1 Update counter consecut...

Page 61: ... category III Rated impulse voltage IC1 IC2 4 6 kV IC2 IC3 4 4 kV IC 3 IC4 4 kV Rated insulation voltage IC1 IC2 4 400 V IC2 IC3 4 250 V IC 3 IC4 250 V Polution degree 3 Protective separation reinforced insulation between IC1 IC2 4 Overvoltage category III 600 V IC2 IC3 4 Overvoltage category III 300 V IC 3 IC4 Overvoltage category III 300 V Voltage test routine test according to IEC 61010 1 IC2 I...

Page 62: ...es Response valueRan1 2 990 kΩ 40 kΩ Response valueRan2 1 980 kΩ 10 kΩ Relative uncertainty Ran R mode or ZF RF 15 at least 1 kΩ Hysteresis Ran 25 at least 1 kΩ Response valueZan1 11 500 kΩ off Response valueZan2 10 490 kΩ off Relative uncertainty Zan 15 at least 1 kΩ Hysteresis Zan 25 at least 1 kΩ Undervoltage detection 10 499 V off Overvoltage detection 11 500 V off Relative uncertainty U 5 at ...

Page 63: ...nty ZF Xc 15 at least 2 nF Password off 0 999 0 off Fault memory alarm messages on off Interface Interface protocol RS 485 BMS ModbusRTU isoData Baud rate BMS 9 6 kbit s Modbus RTU selectable isoData 115 2 kbits s Cable length 9 6 kbits s 1 200 m Cable twisted pairs shield connected to PE on one side min J Y St Y 2x0 6 Terminating resistor 120 Ω 0 25 W internal can be connected Device address BMS ...

Page 64: ...assification of mechanical conditions acc to IEC 60721 Stationary use IEC 60721 3 3 3M7 Transport IEC 60721 3 2 2M4 Long term storage IEC 60721 3 1 1M12 Connection Connection type push wire terminal Nominal current 10A Conductor sizes AWG 24 14 Stripping length 10 mm rigid 0 2 2 5 mm2 flexible without ferrules 0 75 2 5 mm2 flexible with ferrules with without plastic sleeve 0 25 2 5 mm2 Multi condu...

Page 65: ...crew fixing 2 x M4 with mounting clip Weight 150 g factory setting 10 2 Standards approvals and certifications The ISOMETER has been developed in compliance with the following standards DIN EN 61557 8 VDE 0413 8 2015 12 Ber1 2016 12 IEC 61557 8 2014 COR1 2016 Subject to change The specified standards take into account the edition valid until 03 2019 unless otherwise indicated 10 3 Ordering informa...

Page 66: ...lay on release 21 Device features 13 Display elements 31 E Error codes 17 F Factory setting 22 Fault memory 22 Functional description 14 H History memory 23 39 How to use this manual 6 I Installation and connection 25 Interface protocols BMS 23 IsoData 23 Modbus RTU 23 IsoData Data string 59 M Malfunction 19 Measuring times 20 Menu AL 33 out 34 SEt 38 t 37 Overview 32 Modbus AT T 54 channel descri...

Page 67: ...formation 65 P Password protection 22 R Reset button T R 22 Response delay 21 Response times 20 Response value setting 33 S Safety instructions 11 Self test 17 Automatic 18 Manual 18 Signalling assignment of the alarm relays K1 K2 19 Standards and certifications 65 Start up delay 22 T Technical data 61 Total response time 20 W Wiring diagram 27 Workactivitiesonelectricalinstallations 11 ...

Page 68: ...Bender GmbH Co KG Londorfer Str 65 35305 Gruenberg Germany P O Box 1161 35301 Gruenberg Germany Tel 49 6401 807 0 Fax 49 6401 807 259 E mail info bender de Web http www bender de Photos Bender archive ...

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