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IRDH375_D00124_05_M_XXEN/01.2020

3. Function

3.1 Common characteristics (IRDH375 and IRDH375B)

 

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

 

The operating range of the nominal voltage

can be extended via

coupling devices.

 

Automatic adaptation to the existing system leakage capacitance

 

measuring principle (European Patent: EP 0 654 673 B1)

 

Two separately adjustable ranges of the response value1 kΩ …10 MΩ
(Alarm 1, Alarm 2)

 

Two-line LC display

 

Connection monitoring (monitoring of the measuring leads)

 

Automatic device self test

 

Option "W":
This option provides: improved shock and vibration resistance for use
in ships, on rolling stock and in seismic environment.

Summary of Contents for ISOMETER IRDH375

Page 1: ...0 ISOMETER IRDH375 IRDH375B Insulation monitoring device for IT AC systems with galvanically connected rectifiers and converters and for IT DC systems IRDH375 Software Version D0183 V1 8 IRDH375B Software Version D0184 V1 8 Manual EN ...

Page 2: ... 6 Warranty and liability 11 1 7 Disposal 12 2 Safety instructions 13 2 1 General safety instructions 13 2 2 Work activities on electrical installations 13 2 3 Device specific safety information 14 2 4 Intended use 16 2 5 Directions for installation 17 3 Function 19 3 1 Common characteristics IRDH375 and IRDH375B 19 3 2 Additional characteristics IRDH375B 20 3 3 Product description 20 3 4 Function...

Page 3: ...ucture 49 6 3 Menu HISTORY INFO IRDH375B 50 6 3 1 Diagram HISTORY INFO IRDH375B 51 6 4 Menu ISO SETUP Setting of the basic ISOMETER functions 52 6 4 1 Response values Alarm 1 and Alarm 2 52 6 4 2 Operating principle of the alarm relays 52 6 4 3 Memory setting on off 55 6 4 4 Current output for external measuring instruments IRDH375B 55 6 5 Menu ISO ADVANCED Setting of the extended functions 56 6 5...

Page 4: ...PASSWORD 63 6 7 1 Activating and setting the password 63 6 7 2 Diagram PASSWORD 64 6 8 Menu LANGUAGE 65 6 8 1 Setting the national language 65 6 8 2 Diagram Language 66 6 9 Menu SERVICE 66 6 10 Parameterization via Internet 67 7 Serial interfaces 68 7 1 RS 485 interface with IsoData protocol IRDH375 68 7 2 RS 485 interface with BMS protocol IRDH375B 70 7 3 Topology RS 485 network IRDH375B 71 7 3 1...

Page 5: ...gs 77 9 Technical data IRDH375 B 79 9 1 Data in tabular form 79 9 2 Standards approvals and certifications 83 9 3 Characteristic curves 84 9 4 Ordering details 91 9 4 1 ISOMETER 91 9 4 2 Dust protection 92 9 4 3 Coupling devices 93 9 4 4 Measuring instruments 93 INDEX 95 ...

Page 6: ... of these symbols is explained below This manual is intended for qualified personnel working in electrical engineering and electronics DANGER This signal word indicates that there is a high risk of danger that will result in electrocution 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: ...any only 0700BenderHelp Tel and Fax E mail support bender service de 1 2 2 Repair service Repair calibration update and replacement service for Bender products Repairing calibrating testing and analysing Bender products Hardware and software update for Bender devices Delivery of replacement devices in the event of faulty or incorrectly delivered Bender devices Extended guarantee for Bender devices...

Page 8: ...service On site service for all Bender products Commissioning configuring maintenance troubleshooting of Bender products Analysis of the electrical installation in the building power quality test EMC test thermography Training courses for customers Telephone 49 6401 807 752 762 technical issues 49 6401 807 753 sales Fax 49 6401 807 759 E mail fieldservice bender service de Internet www bender de c...

Page 9: ...andard software as part of de liveries modifications and changes to general delivery conditions for prod ucts and services in the electricalindustry set out by the ZVEI Zentralverband Elektrotechnik und Elektronikindustrie e V German Electrical and Electron ic Manufacturer s Association also applies Sale and delivery conditions can be obtained from Bender in printed or elec tronic format 1 5 Inspe...

Page 10: ...oning 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 recom mended ...

Page 11: ...mmu nity 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 ...

Page 12: ... regulations must be complied with The European stand ard EN 50110 can be used as a guide Only qualified personnel are permitted to carry out the work necessary to install commission and run a device 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 Bef...

Page 13: ...connected from the IT system for the duration of the test In order to check the correct connection of the device a functional test has to be carried out before starting the system CAUTION Make sure that the basic settings meet the requirements of the IT system In the event of an alarm message of the ISOMETER the insulation fault should be eliminated as quickly as possible If the ISOMETER is instal...

Page 14: ...anically 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 ...

Page 15: ...nformation in the operating instructions and compliance with test intervals In order to meet the requirements of the applicable standards customised pa rameter settings must be made on the equipment in order to adapt it to local equipment and operating conditions Please heed the limits of the range of application indicated in the technical data Any use other than that described in this manual is r...

Page 16: ... system the system can be damaged If several devices are connected the device does not function and does not signal insulation faults Make sure that only one insulation monitoring device is connected in each conductively connected system CAUTION Ensure disconnection from the IT system When insulation or voltage tests are to be carried out the device shall be isolated from the system for the test p...

Page 17: ...01 2020 Prevent measurement errors When an AC system includes galvanically connected DC circuits the following shall be considered Insulation faults in DC circuits can only be monitored correctly when the rectifiers carry a continuous load of 5 10 mA ...

Page 18: ...xtended via coupling devices Automatic adaptation to the existing system leakage capacitance measuring principle European Patent EP 0 654 673 B1 Two separately adjustable ranges of the response value1 kΩ 10 MΩ Alarm 1 Alarm 2 Two line LC display Connection monitoring monitoring of the measuring leads Automatic device self test Option W This option provides improved shock and vibration resistance f...

Page 19: ...red insulation value Remote setting of certain parameters via the Internet option COM465 additionally required 3 3 Product description The ISOMETER type IRDH375 monitors the insulationresistance ofIT systems It is suitable for universal use in 3NAC AC DC and DC systems AC systems may include extensive DC supplied loads such as converters or thyristor con trolled DC drives The device automatically ...

Page 20: ...ndicated on the LC display or the external kΩ measuring instrument The measuring time is determined by the system leakage capacitances the in sulation resistance and the system related interference disturbances System leakage capacitances do not influence the measuring accuracy If the reading is below the selected response values Alarm 1 Alarm 2 the as sociated alarm relays respond and the alarm L...

Page 21: ...ditions in the IT sys tem to be monitored the self test is running for 15 20 s then the message Test ok appears on the LC display for approximately 2 s Then the device re turns to normal measuring mode and the current measuring value is dis played after the expiry of the measuring time When a device or connection fault is found the message Error appears on the display the device fault LED lightsup...

Page 22: ...ection errors of the ISOMETER K3 is permanently set to N C operation with the contacts 31 34 normally closed that means when a fault occurs the relay deenergizes K3 31 32 con nected Further details are described in Chapter 3 4 1 Self test Behaviour of the analogue output The settings for K3 are preset and cannot be adjusted Setting Manual test Automatic test 0 20 mA 20 mA while test procedure 0 mA...

Page 23: ... Check the fuses Connection PE No low resis tance connec tion of the terminals and KE to earth PE 1 Check wiring of terminal and KE to earth PE 2 Press TEST button 3 Switch the supply voltage off and on Device error x Internal device error 1 Press TEST button 2 Switch the supply voltage off and on 3 Contact Bender If the on off switching of the supply voltage is not possible for technical reasons ...

Page 24: ...ill be stored for at least thirty days If the 24 h selftest is activated in the ISO ADVANCED menu a special time of day can be selected for the execution of the self test in the menu TEST 12 00 Then a self test will be started automatically once a day exactly at the preset time If the 1 h auto test has been selected the self test is automatically carried out every full hour Interconnected IT syste...

Page 25: ... and a completely new measuring cycle for insulation monitoring is started With this function selective disconnection of an IRDH375B in interconnected IT systems can be carried out via auxiliary contacts of the respective coupling switch One coupling switch each in a line type or ring type arrangement can deactivate a subsequent IRDH375B This arrangement guarantees that only one ISOMETER is active...

Page 26: ... 27 IRDH375_D00124_05_M_XXEN 01 2020 BMS bus A B RS485 F1 F2 PE PE PE PE IT system 1 IT system 2 IT system 3 IT system 4 G G G G Addr 1 Addr 2 Addr 4 Addr 3 IRDH375B IRDH375B IRDH375B IRDH375B F1 F2 F1 F2 F1 F2 ...

Page 27: ...t can be prevented that the ISOMETER s disturb each other in interconnected systems In comparison to the solution coupling switches and function input F1 F2 the response time is prolonged since no continuous measurement takes place The advantage is that no auxiliary contacts of a coupling switch are required Furthermore this solution is ideally suited for capacitive IT systems or IT systems connec...

Page 28: ...Function 29 IRDH375_D00124_05_M_XXEN 01 2020 BMS bus A B RS485 PE PE PE PE IT system 1 IT system 2 IT system 3 IT system 4 G G G G Addr 1 Addr 2 Addr 4 Addr 3 IRDH375B IRDH375B IRDH375B IRDH375B ...

Page 29: ...0 kW Scale centre point 120 kW Output current IRDH375 0 400 mA Output current IRDH375B 0 4 20 mA Connect the supply voltage Us to the terminals A1 and A2 Consider the details indicated on the nameplate External TEST button NO contact to the terminals T1 and T2 External RESET button NC contact to the terminals R1 and R2 The output contacts of the alarm relays System fault 31 32 34 Alarm 1 11 12 14 ...

Page 30: ...sioning flow chart threepart 31 IRDH375_D00124_05_M_XXEN 01 2020 Commissioning of the ISOMETER 2 The ISOMETER carries out a self test The display indicates the insulation value after ﬁnishing the measurement ...

Page 31: ...24_05_M_XXEN 01 2020 Commissioning of the ISOMETER 3 In order to check the proper connection a functional test using a resistance that is suitable for the mains voltage is to be carried out Size of the resistance 50 of the present response value Alarm2 ...

Page 32: ...on against short circuit in conformity with IEC 60364 4 43 for the IT system coupling L1 L2 can be omitted if the wiring is carried out in such a manner as to reduce the risk of a short circuit to a mini mum a short circuit proof and earth fault proof wiring is recommended Only one ISOMETER may be triggered by an external TEST or RESET button A galvanic parallel connection of several Test and Rese...

Page 33: ...PE 6 1 5 L1 L2 L3 L1 L2 L3 N L L DC System L2 L1 Un 9 7 8 Un 3 N AC System L2 L1 Un 3 AC System L2 L1 L1 L2 AC System L2 L1 Un mA M M T1 T2 R1 R2 F1 F2 A B 31 32 34 21 22 24 11 12 14 IRDH375 RS485 OFF S2 S1 ON K3 K2 K1 A1 A2 L1 L2 AK KE 6 A 11 12 13 14 16 15 ...

Page 34: ...5 interface A B is terminated with 120 Ω resistor S2 unassigned 6 Serial interface RS 485 A B 7 device fault relay K3 changeover contacts provided 8 Alarm relay K2 changeover contacts provided 9 Alarm relay K1 changeover contacts provided 10 Supply voltage Us see nameplate via 6 A fuse For UL and CSA applications the use of 5 A fuses is mandatory 11 Connection to the 3NAC system to be monitored co...

Page 35: ...20 15 Connection for external coupling devices Extension of the nominal voltage range Un 16 Separate connection of and KE to PE The terminal pairs 2 3 and 4 must be wired so that they are galvanically isolated and must not have a connection to PE ...

Page 36: ... coupling devices 5 2 1 Connection with AGH150W 4 Connected to the ISOMETER this coupling device extends the nominal volt age range to DC 1 760 V in DC systems Please observe the settings in the ISO ADVANCED AGH menu Adapt the settings to the coupling device to be used 1 2 ...

Page 37: ...Connection 38 IRDH375_D00124_05_M_XXEN 01 2020 1 2 ...

Page 38: ...is coupling device extends the nominal volt age range to AC 7 200 V in pure AC systems In case of 3AC systems Pin 2 of AGH520S is to be connected to L1 in case of 3 N AC systems Pin 2 is to be con nected to the N conductor 2 5 3 4 AGH520S PE IRDH375 L1 L2 L3 Un 3 N AC 0 7200 V 42 460 Hz N 3 AC 3 N AC KE AK ...

Page 39: ...oltage range of ISOMETER s used in AC systems including rectifiers 1 without rectifiers Un 3AC 0 1 650 V DC max 1 000 V 2 with rectifiers Un 3AC 0 1 300 V max AC voltage max DC voltage after rectifiers in intermediate circuits of frequency converters 1 840 V L1 L2 L3 PE Un N AGH204S 4 1 2 AK160 AK80 U3 V3 W3 IRDH375 KE AK ...

Page 40: ...the maximum DC voltage in the intermediate circuit usually corre sponds to the phase to phase voltage of the supplying AC system multiplied by 1 414 In case of current controlled intermediate circuits of frequency converters higher DC voltages are to be expected The given voltage valuesforAC DC systems take into account values found by previous experience factor 1 414 between DC voltage and AC vol...

Page 41: ... parameter change moving up in the menu 3 RESET button to delete insulation fault alarms Down key parameter change moving down in the menu 4 MENU key to activate the menu system Enter key confirmation parameter change 5 Alarm LED 1 lights insulation fault first warning level reached 6 Alarm LED 2 lights insulation fault second warning level reached 7 Device fault LED lights IRDH375 defective 8 Two...

Page 42: ...itional information about the insulation resistance s new measurement has started 3 polarity of the measuring pulse valid bus communication signals H new entry in the memory data base C flashing clock is to be set 4 Messages Insulation fault Connection system Connection PE Device error x STANDBY 1 2 3 4 I n s u l at i o n Fa u l t R s 0 1 1 kW H ...

Page 43: ...formation without opening the menu Device name firmware version Response values Alarm 1 and Alarm 2 System leakage capacitance Ce only indication if insulation resistances 20 kΩ Setup status for details refer to the table of the status numbers on page 89 COM Setup IRDH375 bus address Please have the details above on hand if you have a problem and if you con tact Bender for technical questions Para...

Page 44: ...he ISOMETER can only be reset when the present insulation value is 25 higher than the set response value The menu system is called up by pressing the MENU key For controlling the menu system the arrow keys the ENTER key and the ESC key are used Up key Moving up in the menu increasing a parameter Down key Moving down in the menu reducing a parameter ENTER key Selecting a menu item or sub menu item ...

Page 45: ... the previous menu If you do not quit the menu the device automatically returns to the standard mode again after approximately five minutes For the sake of clarity the following symbols are used for the functions ENTER UP DOWN and ESCAPE in the menu diagrams of this operating manual INFO ESC ESC ...

Page 46: ...ENTER key If you have reached the end of the main menu list it will be indicated by the Arrow UP symbol Changing the parameters When password protection is activated indicated by the symbol padlock closed the first thing to enter is the correct password before the param eters can be changed using the UP DOWN keys Entering the correct pass word once allows all parameters to be changed as long as yo...

Page 47: ...the standard mode Pressing the ESC key allows fast changing from the menu mode to the stand ard mode Thus the menu item EXIT need not to be activated Automatic switchover from the menu mode to the standard mode takes place when no key is pressed for approximately 5 min in a main or sub menu ...

Page 48: ...re AMP 5 Autotest 24h 6 Clock 19 08 7 Date 01 01 01 8 Test 00 00 1 Exit 2 Alarm1 040 kW 3 Alarm2 010 kW 4 K1 N O 5 K2 N O 6 Memory on 7 M M 0 20 mA Nr 01 Nr 02 Power on 1 Exit 2 Addr 003 3 ISONet off 4 ISO Monitor Insert Service Password XXX ISO ADVANCED ISO SETUP COM SETUP SERVICE 1 Exit 2 Password XXX 3 Status off PASSWORD 1 Exit 2 Text Deutsch LANGUAGE IRDH375B IRDH375 ESC IT SYSTEM R 010 MW H ...

Page 49: ...menu item Clear all on to delete the memory storage and the ESC key to leave the menu A new entry into the memory is signalled with an H on the display in the standard mode The H will be deleted as soon as the HISTORY INFO menu is called up Data record Event Display indication 1 Switch the supply voltage on Power On 2 Lowest measured insulation value Rmin 3 99 Response value Alarm 1 released Alarm...

Page 50: ...O 3 ISO SETUP 4 ISO ADVANCED 5 COM SETUP 6 PASSWORD 7 LANGUAGE 8 SERVICE Nr 01 Nr 08 Power on Nr 01 Nr 08 Clear all off Nr 01 Nr 08 28 08 01 17 43 Nr 02 Nr 08 Clear all off Nr 02 Nr 08 Rmin 010k Nr 02 Nr 08 25 08 01 10 13 Nr 02 Nr 08 Clear all off Nr 02 Nr 08 Clear all off ESC IRDH375 IRDH375B IT SYSTEM R 010 MW H ...

Page 51: ...t that means N O operation When the sup plement Test has been selected the alarm relays switch over during a man ual self test If for any reason the alarm relays may not switch over during a manual self test the settings N C or N O are to be selected K1 N C Test N C operation contacts 11 12 14 with relay test the alarm relay is energized during normal operation K1 N O Test N O operation contacts 1...

Page 52: ...relay test the alarm relay is deenergized during normal operation K2 N C N C operation contacts 21 22 24 without relay test the alarm relay is energized during normal operation K2 N O N O operation contacts 21 22 24 without relay test the alarm relay is deenergized during normal operation K2 Flash Flashing function contacts 21 22 24 the alarm relay and the LED flash in the event of an alarm messag...

Page 53: ...ED 5 COM SETUP 6 PASSWORD 7 LANGUAGE 8 SERVICE 1 Exit 2 Alarm1 100 KW 3 Alarm2 200 KW 4 K1 N O 5 K2 N O 6 Memory off 7 M M 0 20 mA Alarm1 100 KW Alarm2 200 KW K1 N O K2 N O Memory off M M 0 20 mA K1 N OTest K1 N CTest K1 Flash K1 N O K1 N C Memory on Memory off M M 0 20 mA M M 4 20 mA IRDH375B IRDH375 IT SYSTEM R 010 MW H ...

Page 54: ...4 4 Current output for external measuring instruments IRDH375B Factory setting 0 20 mA The current output of the IRDH375 can be set to 0 20 mA or 4 20 mA via the menu point M M The maximum load is 500 Ω Function 0 20 mA RF insulation fault I current in mA Function 4 20 mA RF insulation fault I current in mA The associated characteristic curves are illustrated on page 85 During the automatic self t...

Page 55: ...eding DC 1 000 V are al lowed to be connected see operation with coupling device on page 40 AGH 520S Terminal AK of the IRDH375 is connected to terminal 5 of the AGH520S The nominal voltage range is extended to AC 0 7 200 V Only current converters with an output voltage not exceeding DC 1 000 V are allowed to be connect ed AGH 204 AK160 Terminal AK of the IRDH375 is connected to terminal AK160 of ...

Page 56: ...note that the basic measuring time will be increased to approximately 10 s when the setting is Ce 500 μF Factory set ting 150 μF 6 5 3 Changing the measuring principle from AMP to DC Measure AMP The DC measuring principle is only suitable for pure AC systems Factory setting AMP 6 5 4 Setting the repetition time for automatic self tests Autotest 24h The time for the repetition of automatic self tes...

Page 57: ... the time the date is required for the memory too In the event of power supply failure the date function is not influenced for at least 30 days If the device is switched on again after this period a new setting of date and time of the real time clock is required 6 5 7 Specifying the starting time of the automatic self test Test IRDH375B If the 24h self test is activated in the ISO ADVANCED menu it...

Page 58: ... SETUP 6 PASSWORD 7 LANGUAGE 8 SERVICE 1 Exit 2 AGH no 3 Ce max 150µF 4 Measure AMP 5 Autotest 24h 6 Clock 21 09 7 Date 01 01 01 8 Test 12 00 AGH no Ce max 150µF Autotest 24h no 150 AK160 204 AK160 520S 204 AK80 150µF 500µF 24h no 01h Clock 21 09 Date 01 01 01 Test 00 00 00 00 23 00 IRDH375B IRDH375 Measure AMP DC AMP IT SYSTEM R 010 MW H ...

Page 59: ... COM SETUP the ISOnet function can be set The ISOnet function of all ISOMETER s existing in the system must be in ON position A BMS Master with the ISOnet function activated controls the ISOnet Slave devices via the BMS bus If an ISOMETER has completed the measuring cycle the permission for insulation measurement is given from the ISOnet Master to the next Slave During the measurement process carr...

Page 60: ...splay The display indication is structured similar to the standard indication but instead of the indication of the measuring pulse the selected bus address is indicated Without pressing a key the indication changes to the standard indication of the IRDH375B after about five minutes If there is no information available from the selected ISOMETER the message NO DATA will be displayed Information is ...

Page 61: ...Operation and setting 62 IRDH375_D00124_05_M_XXEN 01 2020 6 6 4 Diagram COM SETUP IRDH375B ...

Page 62: ...ord query This protects the ISOME TER against unauthorized settings and modifications The desired password menu item 2 Password xxx can be set with the UP DOWN keys and con firmed with the ENTER key The password can be activated in the menu item 3 Status on by clicking the ENTER key The basic setting is 3 Status off that means that the password is deactivated ...

Page 63: ...Operation and setting 64 IRDH375_D00124_05_M_XXEN 01 2020 6 7 2 Diagram PASSWORD ...

Page 64: ...2020 6 8 Menu LANGUAGE 6 8 1 Setting the national language The menu item LANGUAGE allows fault messages of the ISOMETER to be set to different languages There is the choice of German and English The device menu is not influenced by the language selection ...

Page 65: ... personnel and is protected by a password against erroneous settings It is intended to provide fast fault clearance by qualified experts in the event of a device error 1 EXIT 2 HISTORY INFO 3 ISO SETUP 4 ISO ADVANCED 5 COM SETUP 6 PASSWORD 7 LANGUAGE 8 SERVICE 1 Exit 2 Text Deutsch 2 Text Deutsch 2 Text Deutsch 2 Text English IT SYSTEM R 010 MW H ...

Page 66: ...g is possible for Response value alarm 1 1 kΩ 10 MΩ Response value alarm 2 1 kΩ 10 MΩ Operating principle alarm relay K1 e g N O operation Operating principle alarm relay K2 e g N O operation Measuring principle AMP or DC Current output ranges for external measuring instruments 0 4 20 mA Maximum system leakage capacitance 150 μF or 500 μF Time for repetition of the automatic self test off 1 h 24 h...

Page 67: ...top the terminal software IsoData and an interface converter of the ASCII RS 485 RS 232 type is required To obtain the software please contact Bender Service Contact details are found on page 8 Interface data RS 485 interface galvanically isolated from the device electronics Connection to terminal A and B Maximum cable length 1 200 m Transmission protocol 9 600 baud 1 start bit 1 stop bit 8 data b...

Page 68: ...Serial interfaces 69 IRDH375_D00124_05_M_XXEN 01 2020 ...

Page 69: ... via the BMS bus the BMS bus must be terminated at both ends with a 120 Ω resistor An RS 485 network that is not terminated is likely to get instable and may re sult in malfunctions Only the first and the last device in one line may be ter minated Devices in between must not be terminated with 120 Ω Hence stub feeders in the network must not be terminated The length of the stub feeders is restrict...

Page 70: ...vice 3 device 3 to device n etc The RS 485 network represents a continuous path without branches 7 3 1 Correct arrangement Three examples for correct arrangement 7 3 2 Wrong arrangement Three examples for wrong arrangement 7 3 3 Wiring A suitable type of cable for the wiring of the RS 485 network is screened cable core diameter 0 6 mm e g J Y St Y 2x0 6 screen on one side connected to earth PE Con...

Page 71: ... start bit 7 data bits 1 parity bit 1 stop bit 1 7 E 1 Parity even Checksum sum of all transmitted bytes 0 without CR and LF The BMS bus protocol works according to the Master Slave principle That means that one device represents the Master while all other bus nodes are Slaves It is important that only one Master is present in each network All bus nodes are identified by a unique address The Maste...

Page 72: ...ice automat ically represents the Master that means that all addresses between 1 and 150 are cyclically scanned via the BMS bus for alarm and operating messages If the Master receives no answer from five subsequent addresses the scanning cycle is started again If the Master recognizes incorrect answers from a Slave the fault message Fault RS485 is issued by the Master Fa u l t R S 4 8 5 R s 0 1 1 ...

Page 73: ... be no gaps of more than five subsequent addresses so that all Slaves can be scanned by the Master For IRDH375B a BMS address can be selected from the address range 1 30 When assigning the addresses also other devices such as the EDS47x 12 must be considered The correct reception of BMS data is indicated by a flashing point on the dis play on the right of the measuring pulse indication Flashing po...

Page 74: ... resistor to the terminals A and B Switch the supply voltage US on Determine one IRDH375 as the Master and assign address 1 Assign the addresses 2 30 subsequently to all other IRDH375B devices and other bus nodes see table below Check whether a flashing point appears on all devices BMS commands are being received The sub menu ISO Monitor in the COM SETUP menu allows insulation values of the ISOMET...

Page 75: ...otocol converter 2 30 EDS47x 12 Insulation fault evaluators localisation 31 60 SMO480 12 Signal converter relay 61 90 EDS47xE 12 Insulation fault evaluators localisation 111 119 PGH47x Test device for insulation fault location 121 150 PGH47xE Test device for insulation fault location Malfunctions due to wrong address assignment Assigning wrong addresses to external devices may cause malfunctions W...

Page 76: ...SO SETUP 1 Exit 2 Alarm1 40 kΩ 3 Alarm2 10 kΩ 4 K1 N O 5 K2 N O K3 N C fixed setting 6 Memory off 7 M M 0 20 mA 4 ISO ADVANCED 1 Exit 2 AGH no 3 Ce max 150 μF 4 Measure AMP 5 Autotest 24h 6 Clock CET HH MM 7 Date current date DD MM YYYY 8 Test 12 00 5 COM SETUP 1 Exit 2 Addr 3 Slave 3 ISOnet off 4 ISO Monitor ...

Page 77: ...IRDH375B Please check if the basic setting of the ISOMETER complies with the require ments of the system to be monitored 6 PASSWORD 1 Exit 2 Password 000 3 Status off 7 LANGUAGE 1 Exit 2 Text German 8 SERVICE Access only for Bender service personnel Menu Submenu Factory setting ...

Page 78: ... Un DC 0 650 V IRDH375 435 Supply voltage Us see nameplate AC 88 264 V Frequency rangeUs 42 460 Hz Supply voltage Us see nameplate DC 77 286 V IRDH375 427 Supply voltage Us see nameplate DC 19 2 72 V IRDH375 Power consumption 14 VA Response values Response valueRan1 Alarm 1 1 kΩ 10 MΩ Response valueRan2 Alarm 2 1 kΩ 10 MΩ Relative uncertainty 20 kΩ 1 MΩ acc to IEC 61557 8 2007 01 15 Relative uncer...

Page 79: ...perating uncertainty 1 MΩ 10 MΩ 0 1 MΩ 15 under test conditions in accordance with IEC 61326 2 4 the tolerances may double Outputs inputs TEST RESET button internal external Cable length TEST RESET button external 10 m Current output for measuring instrument SKMP scale centre point 120 kΩ Current output IRDH375 load 400 μA 12 5 kΩ Current output IRDH375B load 20 mA 500 Ω Accuracy current output 1 ...

Page 80: ...nce IEC 60068 2 27 device in operation 15 g 11 ms Bumping IEC 60068 2 29 during transport 40 g 6 ms Vibration resistance IEC 60068 2 6 device in operation 1 g 10 150 Hz Vibration resistance IEC60068 2 6 during transport 2 g 10 150 Hz Ambient temperature during operation 10 C 55 C Storage temperature range 40 C 70 C Climatic class acc to IEC 60721 3 3 3K5 Operating mode continuous operation Mountin...

Page 81: ...8 Software version IRDH375B D184 V1 8 Weight approx 510 g Option W Shock resistance IEC 60068 2 27 Device in operation 30 g 11 ms Bumping IEC 60068 2 29 during transport 40 g 6 ms Vibration resistance IEC 60068 2 6 1 6 mm 10 25 Hz 4 g 25 150 Hz Ambient temperature during operation 25 C 70 C Storage temperature range 40 C 85 C Screw mounting 2 x M4 The values marked with are absolute values ...

Page 82: ...SOMETER was designed under consideration of the following standards DIN EN 61557 8 VDE 0413 8 2015 12 DIN EN 61557 8 Ber 1 VDE 0413 8 Ber 1 2016 12 IEC 61557 8 2014 IEC 61557 8 2014 COR1 2016 Subject to change The specified standards take into account the edition valid until 01 2020 unless otherwise indicated ...

Page 83: ...375 B 84 IRDH375_D00124_05_M_XXEN 01 2020 9 3 Characteristic curves ISOMETER response times in relation to system leakage capaci tances of Ce 1 500 μF Un 0 793 V 50 Hz 1 10 100 1000 1 10 100 1000 Ce µF 10 MΩ 0 kΩ RF tan s ...

Page 84: ...chnical data IRDH375 B 85 IRDH375_D00124_05_M_XXEN 01 2020 Max AC voltage between the IT system and earth in the frequency range 50 Hz 100 1000 10000 0 1 1 10 100 fn Hz Un V AGH520S AGH204S 4 IRDH375 0 3 ...

Page 85: ...Technical data IRDH375 B 86 IRDH375_D00124_05_M_XXEN 01 2020 Current output 0 400 µA only IRDH375 RF Insulation fault in kΩ I Current output in μA RF kW I mA RF 400 mA x 120 kW I 120 kW ...

Page 86: ...Technical data IRDH375 B 87 IRDH375_D00124_05_M_XXEN 01 2020 Current output 0 20 mA IRDH375B RF Insulation fault in kΩ I Current output in mA 1 10 100 1000 10 000 0 5 10 15 20 25 I mA RF kW Ω Ω ...

Page 87: ...Technical data IRDH375 B 88 IRDH375_D00124_05_M_XXEN 01 2020 Current output 4 20 mA IRDH375B RF Insulation fault in kΩ I Current output in mA 1 10 100 1000 10 000 0 5 10 15 20 25 I mA RF kW Ω Ω ...

Page 88: ...y 24 hours Self test every hour no periodic self test 7 Language German Language English 8 Password protection not activated Password protection activated 9 AMP measuring principle DC measuring principle 10 max filter frequency 0 1Hz max filter frequency 1Hz max filter frequency 10Hz max filter frequency 50Hz 11 min filter frequency 0 1Hz min filter frequency 1Hz min filter frequency 10Hz min filt...

Page 89: ...Technical data IRDH375 B 90 IRDH375_D00124_05_M_XXEN 01 2020 Dimension diagram enclosure IRDH375 B All dimensions in mm panel cut out 138 x 68 mm ...

Page 90: ...ruc ture on page 47 and in the product and function description on page 20 Type Nominal voltage Un Supply voltage Us Art No IRDH375 435 3NAC 0 793 V DC 0 650 V AC 88 264 V DC 77 286 V B91065000 IRDH375W 435 B91065000W IRDH375B 435 B91065004 IRDH375BW 435 B91065004W IRDH375 427 3NAC 0 793 V DC 0 650 V DC 19 2 72 V B91065002 IRDH375W 427 B91065002W IRDH375B 427 B91065006 IRDH375BW 427 B91065006W IRD...

Page 91: ...sh of the electronics provides higher resistance against mechan ical stress and moisture This makes the devices suitable for use in ships on rolling stock and in seismic environment 9 4 2 Dust protection Transparent cover of the front panel for ingress protection against moisture and dust IP65 Type Dimensions Art No Transparent cover 144 x 72 mm B98060005 ...

Page 92: ...S 4 AC 0 1 650 V B914013 AGH520S AC 0 7 200 V B913033 AGH150W 4 DC 0 1 760 V B98018006 Type Measuring range Dimensions Art No 7204 1421 0 400 μA 72 x 72 mm B986763 9604 1421 0 400 μA 96 x 96 mm B986764 7204S 1421 0 400 μA 72 x 72 mm B986804 9604S 1421 0 400 μA 96 x 96 mm B986784 9620 1421 0 20 mA 96 x 96 mm B986841 9620S 1421 0 20 mA 96 x 96 mm B986842 ...

Page 93: ...Technical data IRDH375 B 94 IRDH375_D00124_05_M_XXEN 01 2020 ...

Page 94: ...rt 30 Commissioning of a BMS network 75 Coupling devices ordering details 93 wiring diagram 37 Current output 0 400 uA 86 Current output 0 4 20 mA 88 D Device fault LED 22 Device fault relay K3 35 Dimension diagram enclosure IRDH375 90 Directions for installation 17 Display in the menu mode 44 Display in the standard mode 43 E EDS4 Common message 23 Explanations of symbols and warnings 17 External...

Page 95: ...etting 63 Product description 20 R Real time clock 25 RESET button 21 42 Response values Alarm 1 and Alarm 2 set ting 52 RS 485 interface 70 RS 485 network correct arrangement 71 wrong arrangement 71 S Self test ISOMETER 42 Service 8 Setting the bus address for IRDH375B 60 Setting the date IRDH375B 58 Setting the real time clock IRDH375B 58 Setting the system leakage capacitance 57 Standards 83 St...

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