A-ISOMETER® IRDH275 IRDH275B
Contents
1. 59 71 Data in tabular form 7 2 Standards approvals and certifications 7 3 Characteristic Curves u Ordering detalle siccsscsscccssssnisacsiesstesdececsesscennsseonosgsatasaqvoossseesevscasnascoboayintastensonsetennts 70 y REP eiu 70 7 4 2 Coupling devices eec ertet rien iiti iii 71 7 4 3 Measuring instruments 71 7 4 4 Label for modified versions 71 INDEX q 5 73 5 TGH1361en 05 2011 gt BENDER 1 Safety information 1 1 Use for the intended purpose The A ISOMETER is intended for e monitoring the insulation resistance of IT systems Any other use or any use which goes beyond the foregoing is deemed to be use other than for the intended purpose The Bender companies shall not be liable for any losses or damage arising therefrom Use for the intended purpose also includes e compliance with all information in the operating instructions and e compliance with test intervals As abasic principle our General conditions of Sale and Delivery shall apply At the latest these shall be available to the operator when the contract is concluded 1 2 Warranty and liability Warranty and liability claims in cases of damage to persons and property s2. BENDER Operating Manual A ISOMETER IRDH275 IRDH275B Insulation monitoring device for IT AC systems with galvanically connected rectifiers and converters and for IT DC systems Software version IRDH275 D160 V1 8 Software version IRDH275B D159 V1 8 Power in electrical safety TGH1361en 05 2011 FZ BENDER Bender Inc USA 700 Fox Chase Coatesville PA 19320 Toll Free 800 356 4266 Phone 610 383 9200 Fax 610 383 7100 E mail info bender org Canada 5810 Ambler Drive Unit 1 Mississauga ON LAW 4J5 Toll Free 800 243 2438 Phone 905 602 9990 Fax 905 602 9960 E mail infogbender ca com Web http www bender org BENDER Group O Bender Inc All rights reserved Content subject to change gt BENDER Table of Contents 1 Safety information 7 1 1 Use for the intended purpose a 7 1 2 Warranty and liability u u u u 7 1 27 Tnt 8 1 2 2 About the operating manual 8 1 2 3 Hazards when handling the A ISOMETER IRDH275 8 1 2 4 Inspection transport and storage 4 2224424 042 20 00 0 9 25 op gc 9 1 3 Explanations of symbols and warnings esee 9 1 4 Directions for installation u u 10 PME
3. System connection minals L1 L2 L3 2 the test button to the IT system 3 Switch the supply voltage off and on 4 Checkthe fuses No low resistance 1 Check wiring of terminal and KE to Bel connection of the earth PE terminals and 2 Press TEST button KE to earth PE 3 Switch the supply voltage off and on 1 Press TEST button Device error x 2 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 a RESET of the process control can be carried out by pressing the ESC RESET and MENU key 14 TGH1361en 05 2011 Function pe BEN DER 2 5 Additional functions IRDH275B Current output for external measuring instrument The current output of IRDH275B provides 0 4 20 mA The current output is gal vanically isolated from the device electronics and the 5485 interface The ISO SET UP menu on page 43 allows to switch over between 0 20 mA and 4 20 mA Real time clock The real time clock serves as a time base for the memory and self test functions At first the correct time and date must be set in the menu ISO ADVANCED If time and date are not set a C clock is flashing in the standard display In the event of a supply voltage failure time and date will be stored for at least thirty days If the 24 h test is activated in the ISO ADVANCED menu a special time of day can be selected
4. Check whether a flashing point appears on all devices BMS commands are being received e The sub menu ISO Monitor in the COM SETUP menu allows insulation values of the A ISOMETER s to be queried Before starting the query the address of the A ISOMETER has to be entered TGH1361en 05 2011 57 BENDER Serial interfaces BMS bus address ranges Addresses Device Meaning There is no device with address 0 0 Information sent to address 0 applies to all devices connected to the interface broadcast 1 PRC1470 Control and indicating device 1 30 2 Insulation monitoring device 1 30 FTC470 Protocol 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 When assigning addresses take care that there are no gaps greater than five in the respective ranges 1 30 31 60 61 90 111 119 and 121 151 58 TGH1361en 05 2011 gt BENDER 7 Technical data IRDH275 B 7 1 Data in tabular form The values marked with are absolute values Insulation coordination acc to IEC 60664 1 Rated voltage AC 800 V Rated impulse voltage pollution degree 8kV 3 Voltage ra
5. 6 1 RS485 interface with IsoData protocol IRDH275 Data transmission is continuously carried out and can neither be interrupted by the data slave station nor be influenced in any other way This protocol cannot be used in combination with the BMS protocol For data evaluation via PC or Laptop the terminal software IsoData and an inter face converter of the ASCII RS485 RS232 type is required Interface data 5485 interface galvanically isolated from the device electronics Connection to terminal A and B Maximum cable length 1200 m Transmission protocol 9600 baud 1 start bit 1 stop bit 8 data bit After each valid measurement the following data block is provided TGH1361en 05 2011 51 pe BEN DER Serial interfaces Start US Unit separator US US 384 ora 304 364 i 02 OFH 30H 30H 30H gt I Measuring value Response value eg 128 kQ Alarm1 e g 60 en ee US US US US LF CR L 4 30 30H 30 31H 32H 30H OFH 30H 0 30H OFH 03H 10H 13H gt 30H No alarm esponse value 31H Alarm Alarm2 e g 120 32H Alarm2 33H Alarm1 2 30H K1 off K2 off AC fault 31H on K2 off 31H DC fault 32H K1 off K2 on 32H DC fault 33H
6. D Device fault LED 13 Dimension diagram enclosure IRDH275 69 Directions for installation 10 Display in the menu mode 32 Display in the standard mode 32 E Explanations of symbols and warnings 9 External coupling devices 42 External RESET button 25 External TEST button 25 F Factory setting 10 Fault memory ON OFF 41 Flashing point 56 Function 12 Function input F1 F2 15 H Historical memory 37 INFO key 31 Inspection transport and storage 9 Interconnected systems 15 150 monitor IRDH275B 45 IsoData protocol 51 M Measuring instruments 71 Memory database 37 Menu COMSETUP 45 HISTORY INFO 38 TGH1361en 05 2011 73 gt BENDER INDEX 150 ADVANCED 42 150 SETUP 39 LANGUAGE 48 PASSWORD 47 SERVICE 49 Menu structure 36 Operating features and displays 31 Option W 11 Ordering details 70 Parameterization via Internet 49 Product description 12 R Real time clock 15 RESET button 12 31 5485 interface 53 S Self test A ISOMETER 31 Setting the bus address for IRDH275B 45 Setting the date IRDH275B 43 Setting the language of the fault message 48 Setting the operating principle of the alarm relays 39 Setting the password 47 Setting the real time clock 43 Setting the response values Alarm 1 and Alarm 2 39 Setting the system leakage capacitance 43 Standards 62 Status number 68 T Technical data IRDH275 59 Terminating resistor 53 TEST butt
7. The terminals and KE shall be connected by a separate wire to the protective conductor PE If the terminals L1 L2 of the device are connected to a system under operation the terminals and KE must not be disconnected from the protective conductor PE In order to check the proper connection of the device it is recommended to carry out a functional test using a genuine earth fault e g via a suitable resistance before starting the A ISOMETER The devices variant 4 are delivered with the following factory setting Alarm 1 Alarm 2 40 10 response values ISO SETUP Operating principle K1 K2 ISO SETUP N O operation ISO SETUP Memory off ISO ADVANCED System leakage capacitance 150 uF COM SETUP Bus address 3 slave Please check if the basic setting of the A ISOMETER complies with the require ments of the system to be monitored 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 L When an AC system includes galvanically connected DC circuits the 10 TGH1361en 05 2011 gt BENDER 2 Function 2 1 Common characteristics IRDH275 and IRDH275B A ISOMETER for IT AC systems with galvanically connected rectifiers and for IT DC systems IT 2 unearthed systems The operating range of the nominal voltage U can be extended via coupling devices
8. U a 45 5 6 4 Diagram COM SETUP IRDH275B a u 46 5 7 Menu PASSWORD 2222 2 47 5 7 1 Activating and setting the password 47 5 7 2 Diagram PASSWORD 47 4 TGH1361en 05 2011 pe BENDER Table of Contents 5 8 Menu LANGUAGE 5 aaa 48 5 8 1 Setting the national language 4 42442443 002 48 5 8 2 Diagram Language iscrive 48 5 9 Menu SERVICE 5 10 Parameterization via Internet u u 49 6 Serial interfaces 51 61 RS485 interface with IsoData protocol IRDH275 5 6 2 RS485 interface with BMS protocol IRDH275B 53 6 3 Topology 85485 network IRDH275B 54 6 3 1 Correct arrangement uu u 54 6 3 2 Wrong arrangement 54 63 2 ri 54 64 BMS protocol IRDH275B o ssesssssscsssseccsssescsssecssssscecssecssssececssecsssseesssnecessueecsenses 55 6 4 1 BMS aqa aaa 64 2 BMS Slave uu 6 4 3 Commissioning of an RS485 network with BMS protocol 7 Technical data IRDH275 B
9. nnn 1 30 factory setting 3 Switching components Switching components 2 changeover contacts K1 Alarm 1 K2 Alarm 2 device fault Operating principle K2 Alarm 1 Alarm 2 aasan N O or N C operation Factory setting Alarm 1 Alarm 2 ttt N O operation Eleeiricaliend ranee an seen 12 000 switching operations IIB IEC 60255 23 Rated contact voltage AC 250 V DC 300 V tette eerte ee AC DC5 A Breaking een 2 A AC 230 V cos phi 0 4 60 TGH1361en 05 2011 Technical IRDH275 B pe BEN DER 0 2 A DC 220 V L R 0 045 inimum contact current at DC 24 V ntes 2mA 50 mW General data EME acc to IEC 61326 2 4 2006 06 Ed 1 0 Shock resistance 60068 2 27 device in 15g 11ms Bumping IEC 60068 2 29 during transport tt 40g 6ms Vibration resistance IEC 60068 2 6 device in operation 1g 10 150 Hz Vibration resistance IEC 60068 2 6 during 29 10 150 Hz Ambient temperature during operation une 10 C 55 C Storage temperature range ttt 40 C 70 C Climatic class acc to 1E
10. 11 2 1 Common characteristics IRDH275 and IRDH275B 11 22 Additional characteristics IRDH275B a 11 23 Product description Jaa 12 2A 12 25 Additional functions IRDH275B a 15 3 Commissioning flow chart threepart 19 LA DLIaDERMC 23 SOMMER MEETS 23 4 2 Wiring diagrams with coupling devices 26 4 2 1 Connection with AGH150W 4 cesssssssscsssscccsseecsssssecssseeessseeessneeessueeesuseessaeess 26 4 2 2 Connection with 5205 2 27 4 2 3 Connection with AGH204S 4 28 5 Operation and setting 31 5 17 Operating features and displays IRDH275 B 31 5 1 1 Display in the standard mode u 32 TGH1361en 05 2011 3 pe BENDER Table of Contents 5 1 2 Display in the menu mode a 32 5 1 3 Function nN i 33 52 Menu structure and menu mode 35 5 2 1 Diagram menu structure 53 Menu HISTORY INFO IRDH275B 5 3 1 Diagram HISTORY INFO IRDH275B a 38 54 Menu ISO S
11. K1 2 Example terminal display 000128000060000 120220 Measuring value Alarm1 Alarm2 AC fault 08 60 120KO 1 Alarm2 I K1 off K2 52 TGH1361en 05 2011 Serial interfaces pe BEN DER 6 2 RS485 interface with BMS protocol IRDH275B The 5485 interface galvanically isolated from the device electronics and current output serves as a physical transmission medium for the BMS protocol If several IRDH275B or other bus capable devices are interconnected in a network via the BMS bus the BMS bus must be terminated at both ends with 120 Q resistor An RS485 network that is not terminated is likely to get instable and may result in malfunctions Only the first and the last device in one line may be terminated De vices in between must not be terminated with 120 Hence stub feeders in the network must not be terminated The length of the stub feeders is restricted to 1 meter 1st device device last device A B Stub feeder 0 4W maximum 1 m 0 4W Maximum length of the RS485 bus 1200 m TGH1361en 05 2011 53 pe BEN DER Serial interfaces 6 3 Topology RS485 network IRDH275B The optimum topology for the RS485 network is a daisy chain connection In this connection device 1 is connected to device 2 device 2 to device 3 device 3 to de vice n etc The RS485 network represents a continuous path without branches 6 3 1 C
12. Automatic adaptation to the existing system leakage capacitance AmppPlus measuring principle European Patent EP 0 654 673 B1 Two separately adjustable ranges of the response value1 kQ 10 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 2 2 Additional characteristics IRDH275B Memory with real time clock to store all alarm messages with date and time stamp BMS interface BMS protocol for data exchange with other Bender devices RS485 electrically isolated Internal disconnection of the A ISOMETER from the IT system to be monitored using a control signal terminals F1 F2 e g if several A ISOMETERS are inter connected Current output 0 4 20mA galvanically separated in relation to the meas ured insulation value Remote setting of certain parameters via the Internet option FTC470XET additionally required TGH1361en 05 2011 11 pe BENDER Function 2 3 Product description The A ISOMETER type IRDH275 monitors the insulation resistance of IT systems It is suitable for universal use in 3 N AC AC DC and DC systems AC systems may in clude extensive DC supplied loads such as converters or thyristor controlled DC drives The device automatically adapts itself to the existing system leakag
13. A B 11 12 14 1 24 ler 1 nt 1200 UB 24 TGH1361en 05 2011 Connection Legend to wiring diagram BENDER 2 3 7 8 9 10 11 12 13 Supply voltage U see nameplate via 6 A fuse For UL and CSA applications the use of 5 A fuses is mandatory Connection to the 3AC system to be monitored connect terminals L1 L2 to neutral conductor N or terminals L1 L2 to conductor L1 L2 Connection to the AC system to be monitored connect terminals L1 L2 to conductor L1 L2 Connection to the DC system to be monitored connect terminal L1 to conductor L terminal L2 to conductor L Separate connection of and to PE External TEST button NO contact External RESET button NC contact or wire jumper when the terminals are open the fault message will not be stored STANDBY by means of the function input F1 F2 When the contact is closed insulation measurement does not take place system disconnection IRDH275 current output galvanically separated 0 400 HA IRDH275B current output galvanically separated 0 20 mA or 4 20 mA Serial interface 85485 termination 120 Q resistor Alarm relay 1 changeover contacts provided Alarm relay 2 device fault relay changeover contacts provided The terminal pairs 7 8 and 9 must be wired galvanically isolate and must not have a connection to PE TGH1361en 05 2011 25 E BEN DER Connec
14. IRDH275 44 TGH1361en 05 2011 Operation and setting pe BEN DER 5 6 Menu COM SETUP Setting the BMS interface 5 6 1 Bus address Addr IRDH275B This menu item is used to set the BMS bus address of the IRDH275 Since there are several A ISOMETERS in one system take care that the bus address is not assigned twice The device is factory set to address 3 and hence acts as a slave A ISOMETERs must be assigned one after the other since only one device If several IRDH275 are operated on one BMS bus the addresses of other d may represent the Master 5 6 2 ISOnet function IRDH275B Inthe ISOnet ON sub menu of the COM SETUP the ISOnet function can be set The ISOnet function of all A ISOMETERs 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 A ISOMETER has completed the measuring cycle the permis sion for insulation measurement is given from the ISOnet Master to the next slave During the measurement process carried out by an A ISOMETER all other A ISOMETER 5 are in the STANDBY mode 5 6 3 ISO monitor IRDH275B This function allows to query the current measured value as well as the messages of all bus capable A ISOMETERs existing in the BMS network After selecting the bus address the entire information stored by the selected device is indicated on the display The display indication is structured similar to the
15. cycle for insulation monitoring is started With this function selective disconnection of an IRDH275 in interconnected IT sys tems 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 IRDH275 This arrangement guarantees that only one A ISOMETER is TGH1361en 05 2011 15 pe BENDER Function active in each galvanically connected system In a ring type arrangement with all coupling switches closed it can be assumed that all A ISOMETER s are deactivated In order to prevent this a BMS Master IRDH275B BMS address 1 monitors the con dition of the function input F1 F2 of all slave A ISOMETER s When all slave A ISOMETER s are in the STANDBY mode the insulation monitoring function of the Master A ISOMETER and hence the function input F1 F2 of the Master are without function in this mode Details are shown in the graphic below BMS bus RS485 oe Addr 1 ISOnet Function COM SETUP Select ISOnet ON from the COM SETUP menu to activate this function This func tion is a type of scanning function The BMS Master activated via the ISOnet func tion controls the ISOnet slave devices via the BMS bus Once an A ISOMETER has finished its measurement cycle the authorization for measuring the insulation re sistance is passed on from the ISOnet Master to the next slave While A ISOMETER is carrying out a
16. functions The progress of the self test is indicated on the display by a bar graph Depending on the conditions in the IT system to be monitored the self test is running for 15 20 seconds then the message Test ok appears on the LC dis play for approximately 2 seconds Then the device returns to normal measuring mode and the current measuring value is displayed after the expiry of the measur ing time When a device error or connection fault is found the message Error appears on the display the device fault LED lights up the relay K2 21 22 24 switches and the respective fault message see table is indicated If such a device fault occurs a self test is started again every minute If no more malfunction is detected the fault mes sage is deleted automatically and the device fault LED extinguishes During operation the self test function can be started by pressing the TEST button internal or external The self test can also be started automatically every hour or every 24 hours by selecting ISO ADVANCED Autotest menu The alarm relays Alarm1 2 only switch after starting the self test function by press ing the TEST button that means if an automatic self test has been selected the alarm relays do not switch TGH1361en 05 2011 13 gt BENDER Function Error message Meaning Steps to be taken No low resistance connection of ter Checkthe wiring of terminal L1 L2 to the IT system
17. system leakage capacitance lt 500 pF Faeton Setten nt ee 150 uF Displays Display illuminated ttt two line display Characters numberof characters une 2x16 Display range measuring value Operating uncertainty 20 acc to IEC 61557 8 2007 01 15 Operating uncertainty 1 KQ 20 kQ E1KQ 15 Operating uncertainty 1 MQ 10 0 1 MQ 15 96 under test conditions according to IEC 61326 2 4 the tolerances may double Outputs inputs TEST RESET DUELO nn een internal external Cable length TEST RESET button external 10m Current output for measuring instrument SKMP scale centre point 120 KQ Current output IRDH275 load wo 400 pA 12 5 kQ Current output IRDH2758 load 20 mA lt 500 Accuracy current output 1 kQ 1 in relation to the displayed measured value 10 41kQ Serial interface Interface Protocol IRDH275 ttn RS485 ASCII IsoData Interface Protocol IRDH275B nininini RS485 BMS COMUNALI EVER TRIP EH UR E terminals A B lt 1200 Shielded cable shield on one site to two core 2 0 6 mm e g J Y St Y 2x0 6 Terminating resistor Device address BMS bus
18. 0 V are allowed to be connected see operation with coupling device on page 28 AGH 150 AK160 Terminal AK of the IRDH275 is connected to terminal AK160 of the AGH150W 4 The nominal voltage range is extended to DC 0 1760 V The coupling monitoring is deactivated when an external coupling device is connected 42 TGH1361en 05 2011 Operation and setting pe BEN DER 5 5 2 Adaptation to the system leakage capacitance Cemax 150 uF This menu allows to adapt the A ISOMETER to the maximum system leakage ca pacitance max 500 uF Please note that the basic measuring time will be in creased to approximately 10 seconds when the setting is C 500 uF Factory setting 150 pF 5 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 5 5 4 Setting the repetition time for automatic self tests Autotest 24h The time for the repetition of automatic self tests can either be set to 1 hour or to 24 hours or can be deactivated Factory setting 24h 5 5 5 Setting the real time clock Clock IRDH275B The setting of the real time clock is the time base for the memory and for the auto matic self test In case of failure of the supply voltage the real time clock keeps run ning for approximately 30 days When the device will be switched on after this period a flashing C appears on the display and the clock has to be set again
19. 00 100 I mA 120 R 20 120 Rr Insulation fault in Current output in mA 66 TGH1361en 05 2011 Technical IRDH275 B pe BEN DER Current output 4 20 mA IRDH275B Re kQ 10000 1000 100 I mA _ 16 mAx120kQ 1 4mA F 120 Re Insulation fault in Current output in mA TGH1361en 05 2011 67 Technical data IRDH275 B gt BENDER i esodind JO peuinbeJ si piomssed v e qeges sysuejse ow uy pexJeul sjejeureJed yx 677 S 6 amp S ZHQMI lt au ui sseJppe sng ZHL O Aouanbay uiu uiu ZH Aouanbay Aouanba4y uiu we EN xx ZHOS ZHOL m ZHLO ouenbej Joy sayy ZH sayy ejdiouud ejdiouud IA Buunse u Amie pejeAnoe p omssed jou uonoejoud puomssed usiBu3 ueuuec abenBue Jnou Alana 158 5 sinoy pz Alana 159 JOS 41 009 5 41 og 5 xx 0L 2 s 309 SPOZHOV MV SOZSHOV 3108 SPOZHOV MV Bui dnoo ou 29 sJequunu Jequunu u jo anjen Status number TGH1361en
20. 05 2011 68 Technical IRDH275 B pe BEN DER Dimension diagram enclosure IRDH275 B 112 5 84 5 s gt 427 ND 7 OOOOOOOOOOOOOOOOO 00000000000000000 DIN rail mounting according to IEC 60715 or Screw mounting by means of a plug in trapezoidal support Order No 990056 Option W TGH1361en 05 2011 69 Technical data IRDH275 B BENDER 7 4 Ordering details 7 4 1 A ISOMETER Type dd dd AH NU RDH275 435 Derzizsev 891065100 IRDH275W 435 ii i B 9106 5100W IRDH275B 435 5 B 9106 5101 IRDH275BW 435 5 ii 9106 5101W IRDH275 427 DC 19 2 72 V B 9106 5104 IRDH275W 427 9106 5104W IRDH275B 427 i 9106 5105 IRDH275BW 427 i 9106 5105W IRDH275 425 10 2 36 V B 9106 5108 IRDH275B 425 P i B 9106 5109 Series B The 275B series provides a BMS interface a memory with real time clock and other features An overview about these features is shown in the menu structure on page 35 and in the product and function description on page 12 Option W Devices with ending W provide improved shock and vibration resistance A spe cial varnish of the electronics provides higher resistance against mechanical stress and moisture This makes the devices suitable for use in ships on rolling stock and in seismic environment 70
21. 22 TGH1361en 05 2011 gt BENDER 4 Connection 4 1 Wiring Connect the terminals A1 and A2 to the supply voltage Us in accordance with IEC 60364 4 43 The connections to the supply voltage shall be provided with pro tective devices to afford protection in the event of a short circuit a 6 A fuse is rec ommended For UL and CSA applications the use of 5 A fuses is mandatory Devices for protection 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 sucha manner as to reduce the risk of a short circuit to a minimum a short circuit proof and earth fault proof wiring is recommended Only A ISOMETER may be connected to an external TEST or RESET button galvanic parallel connection of several TEST and RESET inputs for collective testing of A ISOMETER s is not permitted External coupling devices connected via the terminal AK cannot be switched off via the internal coupling relays If no coupling device is used the terminal AK remains free TGH1361en 05 2011 23 BENDER Connection 3 Un System L1 _ s Emend 13 L2 L1 L2 11 12 3 N System Un L1 DC System L2 y L 5 L3 Un N L jx Us L1 12 12 6 1 Su IE PE 1 2 L1 L2 AK KE IRDH275 B K1 i K2 T1 T2 RIR2 2122 M M
22. 5 5 6 Setting the date Date IRDH275B As well as 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 5 5 7 Specifying the starting time of the automatic self test Test IRDH275B If the 24h self test is activated in the ISO ADVANCED menu it is possible to set the time hour when the self test is to be carried out by means of the TEST 12 00 sub menu Then the self test is automatically carried out once a day at a given time If the 1 hour auto test has been selected the self test will be carried out at every full hour TGH1361en 05 2011 43 pe BEN DER Operation and setting 5 5 8 Diagram ISO ADVANCED IT SYSTEM R gt 010MQ f t H E E 1 EXIT 2 HISTORY INFO 3 ISO SETUP lt 4 150 ADVANCED 5 SETUP Y 6 PASSWORD 7 LANGUAGE 8 SERVICE T 150 AK160 lt 204 AK160 5205 1 Exit 204 AK80 2 AGH n0 4 3 Ce max 150uF 1 Y 4 Measure AMP lt l 5 Autotest 24h 1 6 Clock 21 09 Ce max 150uF gt ql 7 01 01 01 _ ET 150uF i 500 Measure AMP gt a DC a AMP JT V 24h no 01h i IRDH275B
23. 5B devices 6 4 1 BMS Master A Master can query all warning and operating messages from a slave If the bus address 1 has been selected for one IRDH275B this device automatically represents the Master that means that all addresses between 1 and 150 are cycli cally scanned via the BMS bus for alarm and operating messages If the Master re ceives 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 5485 is issued by the Master Fault RS485 Rs 011kQ Faults may be caused when e addresses are assigned twice e a second master exists on the BMS bus e interference signals occur on the bus lines e adefective device is connected to the bus e terminating resistors are not activated TGH1361en 05 2011 55 pe BEN DER Serial interfaces 6 4 2 BMS Slave All IRDH275B are factory set to slave mode address 3 In a BMS network one ad dress must be selected from the address range 2 30 for each slave There may be no gaps of more than five subsequent addresses so that all slaves can be scanned by the Master For IRDH275B 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 display on the right of the measuring pulse indication SZIT SYSTEM T Fl
24. C 00721 3 3 uk 3K5 ans een continuous operation Mounting a5 indicated on the display Distance to adjacent devices 2221 21 2 22 230mm Connection Screw terminals Connection rigid flexible 0 2 4mm 02 25 mm Connection flexible with connector sleeve without with plastic sleeve 025 25 mm Conductorsizes AW cette eR eec t e na 24 12 TighteninigitorQle ia teatri 0 5 Nm Protection class internal components DIN EN 60529 anne P30 Protection class terminals DIN EN 60529 nnn P20 Type of a she X112 free from halogen DINERS IEC 60715 Hammability class UL94 V 0 SOMW ATE VERSION DA 5 certet ret tree tette itor D160 V1 8 Software version IRDH275B D159 V1 8 UE EOD M 510g Option W Shock resistance 60068 2 27 Device in 30g 11ms Bumping IEC 60068 2 29 during transport tt 409 6 5 Vibration resistance 60068 2 6 1 6mm 10 25 Hz Ag 25 150 Hz Ambient temperature during operation 2 40 C 70 C Storage temperature range 40 C 85 C STEW costera tetro
25. ETUP Setting of the basic A ISOMETER functions 5 4 1 Response values Alarm 1 and Alarm 2 esee 5 4 2 Operating principle of the alarm relays eee 5 4 3 Memory setting on off u 5 4 4 Current output for external measuring instruments IRBH275B 41 55 Menu ISO ADVANCED Setting of the extended functions sesenta 42 5 5 1 External coupling devices AGH 42 5 5 2 Adaptation to the system leakage capacitance 150 RR 43 5 5 3 Changing the measuring principle from AMP to DC Measure 2 00 43 5 5 4 Setting the repetition time for automatic self tests A totest 24h BRRRRRRRCRNCRRR 43 5 5 5 Setting the real time clock Clock IRDH275B 43 5 5 6 Setting the date Date IRDH275B sssssssssssccsseessssseccsseesesusecssneeesssecsesees 43 5 5 7 Specifying the starting time of the automatic self test Test 275 e M 5 5 8 Diagram ISO ADVANCED 5 6 Menu COM SETUP Setting the BMS interface 22 4 442 424440010 5 6 1 Bus address IRDH275B m 5 6 2 ISOnet function IRDH275B l ll u a 5 6 3 ISO monitor IRDH275B
26. Service Password XXX v 1 Exit 2 Text Deutsch IRDH275 36 TGH1361en 05 2011 Operation and setting pe BEN DER 5 3 MenuHISTORY INFO IRDH275B 99 events with date and time stamp can be stored in the memory database The da tabase is designed as a ring memory i e the eldest entry is overwritten Data is writ ten into a non volatile memory and therefore provides protection against voltage failure 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 3 99 Response value Alarm 1 cleared O Alarm1 3 99 Response value Alarm 2 released Alarm2 3 99 Response value Alarm 2 cleared O Alarm2 3 99 Error system connection released System connection 3 99 Error system connection cleared O System connection 3 99 Error PE connection released Q PE connection 3 99 Error PE connection cleared O PE connection 3 99 Device error released Device error 3 99 Device error cleared O Device error 3 99 System reset watchdog System reset Before storing the events with the actual date and time stamp set the real time clock in the ISO ADVANCED menu refer to page 44 The following function keys are provided to query data from the HISTORY INFO menu the UP DOWN keys to change the data record number the ENTER key to change from the data record number to the menu item C
27. TGH1361en 05 2011 Technical data IRDH275 B 7 4 2 Coupling devices Type Nominal voltage range Un AGH204S 4 AC 0 1650 V AGH520S AC 0 7200 V AGH150W 4 DCO 1760V 7 4 3 Measuring instruments Type Measuring range 7204 1421 0 400 HA 9604 1421 0 400 HA 72048 1421 0 400 HA 9604S 1421 0 400 HA 9620 1421 0 20 mA 9620S 1421 0 20 mA 7 4 4 Label for modified versions There will only be a label in this field if the A ISOMETER is different from the standard version Art No B 914 013 B 913 033 B 9801 8006 Dimensions 72x72mm 96 x 96 mm 72x 72mm 96 x 96 mm 96 x 96 mm 96 x 96 mm Art No B 986 763 B 986 764 B 986 804 B 986 784 B 986 841 B 986 842 BENDER TGH1361en 05 2011 71 pe BEN DER Technical data IRDH275 B 72 TGH1361en 05 2011 gt BENDER INDEX A Additional characteristics IRDH275B 11 AGH 26 Alarm LED 1 31 Alarm LED2 31 Alarm messages 57 Approvals 62 Automatic self test 43 B Bender Measuring Device Interface 55 BMS bus correct arrangement 54 wrong arrangement 54 BMS bus address ranges 58 BMS bus address ranges 58 BMS Master 55 BMS Slave 56 C Changing the measuring principle 43 Characteristic curves 63 Commissioning flow chart 19 Commissioning of a BMS network 57 Common characteristics 11 Coupling devices ordering details 71 wiring diagram 26 Current output 0 400 mA 65 Current output 4 20 mA 67
28. ashing point R 500KN L m BMS data received If no flashing point appears it may be attributed to the following no Master available in the network e more than one Master available in the network e 85485 interface terminal A B not connected or reversed 56 TGH1361en 05 2011 Serial interfaces gt BENDER The following table gives an overview about essential alarm messages and the as signment of the messages indicated on the display or operator panels e g PRC1470 Message Channel Meaning Insulation Fault 1 Insulation resistance setting Alarm 1 Insulation Fault 2 Insulation resistance setting Alarm 2 Connection system 3 Connection error L1 L2 against system Connection PE 4 Connection error KE against PE conductor Device error 5 Internal device error The BMS function is completely available in the standby mode Stand by F1 F2 6 4 3 Commissioning of an 5485 network with BMS protocol e Connect the terminals A and B of all bus nodes in one line Switch the terminating resistors on at the beginning and end of the 5485 network or in case of devices without a terminating switch at the end of the bus connect a 120 Q resistor to the terminals A and B Switch the supply voltage Us on Determine one IRDH275 as the Master and assign address 1 e Assign the addresses 2 30 subsequently to all other IRDH275B devices and other bus nodes see table below
29. ble care Never theless errors and mistakes cannot be entirely ruled out The Bender companies as sume liability whatsoever for any injury to persons or damage to property which may be sustained as a result of faults or errors in this operating manual 1 2 3 Hazards when handling the A ISOMETER IRDH275 The A ISOMETER IRDH275 is constructed according to the state of the art and rec ognized technical safety rules Nevertheless when it is being used hazards may oc cur to the life and limb of the user or third parties or there may be adverse effects on the A ISOMETER or on other valuable property The A ISOMETER must only be used for the purpose for which it is intended whenitis in perfect technical condition as far as safety is concerned Any faults which may impair safety must be eliminated immediately Impermissible modifications and the use of spare parts and additional devices which are not sold or recommended by the manufacturer of the devices may cause fires electric shocks and injuries Unauthorized persons must not have access to or contact with the A ISOMETER Warning signs must always be easily legible Damaged orillegible signs must be re placed immediately 8 TGH1361en 05 2011 Safety information pe BEN DER 1 2 4 Inspection transport and storage Inspect the dispatch packaging and equipment packaging for damage and com pare the contents of the package with the delivery documents In the eve
30. ding is below the selected response values Alarm 1 Alarm 2 the associat ed alarm relays respond and the alarm LEDs Alarm 1 2 light up and the measuring value is indicated on the LC display in the event of DC insulation faults the faulty supply line is indicated If the terminals RT R2 are bridged external RESET button NC contact or wire bridge the fault indication will be stored Pressing the RESET button resets the insulation fault message provided that the currently displayed insulation resistance is at least 2596 above the actual response value when the reset 12 TGH1361en 05 2011 Function pe BEN DER is carried out The faultmemory behaviour can also be set in the ISO SETUP menu by selecting the sub menu Memory on off The connections for external kQ display supplied by the current output 0 400 pA or 0 4 20 mA IRDH275B at M M are galvanically isolated AMPPlus measuring principle adaptive measuring pulse a measuring principle developed by Bender European Patent EP 0 654 673 B1 Self test A self test can be carried out manually using the TEST button or automatically In order to guarantee high functional reliability the A ISOMETER IRDH275 provides comprehensive self test functions After switching the supply voltage on all inter nal measuring functions the components of the process control such as data and parameter memory as well as system and earth connections are checked using the self test
31. e capac itance Suitable coupling devices are available to extend the nominal voltage range U The IRDH275B can be used in combination with a control and indicating device e g PRC1470 version 2 or higher on the BMS 5 Bender Measuring Device Inter face bus 2 4 Function The A ISOMETER IRDH275 is connected between the unearthed system IT system and the protective conductor PE The response values and other function parameters are set via the function keys The parameters are indicated on the LC display and are stored in a non volatile memory EEPROM after the setting is completed A microprocessor controlled pulsating AC measuring voltage is superimposed on the IT system to be monitored AMPPlus measuring principle The measuring cyc le consists of positive and negative pulses of the same amplitude The period of these pulses depends on the respective system leakage capacitances and the insu lation resistances of the IT system to be monitored An insulation fault between the IT system and earth closes the measuring circuit From the measured current value the microprocessor calculates the insulation re sistance which is indicated on the LC display or the external measuring instru ment The measuring time is determined by the system leakage capacitances the insula tion resistance and the system related interference disturbances System leakage capacitances do not influence the measuring accuracy If the rea
32. em to PE when the IRDH275 is coupled with AGH204S 4 in this part of the sys tem This voltage is dependent on the level of the nominal voltage the type of rec tification 6 pulse 12 pulse the type of converter intermediate circuit current or voltage and the converter technology In case of converters the maximum DC voltage in the intermediate circuit usually corresponds to the phase to phase volt age of the supplying AC system multiplied by 1 414 In case of current controlled intermediate circuits of frequency converters higher 28 TGH1361en 05 2011 Connection pe BEN DER DC voltages are to be expected The given voltage values for AC DC systems take into account values found by pre vious experience factor 1 414 between DC voltage and AC voltage The maximum DC voltage in case of insulation faults in the DC part ofthe IT system for example converter intermediate circuit is DC 1840 V From this the maximum nominal AC voltage is calculated Umax DC 1840 V 1 414 AC 1300 V TGH1361en 05 2011 29 pe BEN DER Connection 30 TGH1361en 05 2011 BENDER 5 Operation and setting 5 1 Operating features and displays IRDH275 B BENDER 4 A ISOMETER IRDH275 IT SYSTEM j R 086kQ Fb H INFO key to query standard information ESC key back menu function confirmation parameter change 2 TEST button to call up the self test Up key parameter change moving up in
33. 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 5 7 2 Diagram PASSWORD T SYSTEM R gt 010M Ft EXIT Ss HISTORY INFO 150 SETUP ISO ADVANCED COM SETUP PASSWORD LANGUAGE SERVICE 1 2 3 4 5 6 7 8 1 Exit 2 Password XXX 3 Status off ad Password XXX Password 000 Password 4 Password 999 d Status off Status on TGH1361en 05 2011 47 pe BEN DER Operation and setting 5 8 Menu LANGUAGE 5 8 1 Setting the national language The menu item Language allows fault messages of the A 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 5 8 2 Diagram Language T SYSTEM F lt 1 EXIT 2 HISTORY INFO 3 ISO SETUP 4 ISO ADVANCED 5 COM SETUP 6 PASSWORD 7 LANGUAGE 8 SERVICE lt 1 Exit 2 Text Deutsch lt 2yTex Deutsch 2 Text Deutsch 2 Text English 48 TGH1361en 05 2011 Operation and setting pe BEN DER 5 9 Menu SERVICE This menu item is provided for the Bender service personnel and is protected by a password against erroneous settin
34. 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 systems When using A ISOMETERS in IT systems make sure that only one active A ISOMETER is connected in each interconnected system If IT systems are inter connected via coupling switches make sure that A ISOMETER s not currently used are disconnected and deactivated via a control system IT systems coupled via di odes or capacitances may also influence the insulation monitoring process Hence also in this case a central control of the different A ISOMETER 5 is required Function input F1 F2 for connection or disconnection of IT systems being monitored The A ISOMETER can be disconnected from the IT system and set to STANDBY mode with the function input F1 F2 If the input F1 F2 is bridged the connections L1 L2 are switched off via internal coupling relays the measuring function is stopped and the message STANDBY appears on the display Software version 1 4 or higher does not indicate the measured insulation resistance during the discon nection but indicates the value gt 10 Furthermore the alarm relays and alarm LEDs no longer provide alarm messages After opening the function input F1 F2 the connection to the IT system will be restored and a completely new measuring
35. gs It is intended to provide fast fault clearance by qualified experts in the event of a device error 5 10 Parameterization via Internet The parameters of an IRDH275B indicated below can be checked and set from a re mote place of use by using a personal computer In addition a browser viewing program for Internet application and our protocol converter FTC470XET BMS lt gt Ethernet TCP IP are required Remote setting is possible for Response value Alarm 1 1 10 000 Y1 Response value Alarm 2 1 10 000 Y2 Operating principle alarm relay 1 e g N O operation Operating principle alarm relay 2 e g N O operation Measuring principle AMP or DC e Current output ranges for external measuring instruments 0 4 20 mA e Maximum system leakage capacitance 150 pF or 500 pF e Time for repetition of the automatic self test off 1 h 24h e Starting time of the automatic self test 0 00 23 00 h Language of the alarm messages to be displayed D GB Setting the fault memory to or OFF TGH1361en 05 2011 49 pe BEN DER Operation and setting 50 TGH1361en 05 2011 gt BENDER 6 Serial interfaces The A ISOMETER s IRDH275 and IRDH275B have differently designed serial inter faces 5485 and IsoData protocol IRDH275 galvanically isolated ASCII unidirectional 5485 and BMS protocol IRDH275B galvanically isolated ASCII bidirectional
36. hall be excluded if they are attributable to one or more of the following causes e Use of the A ISOMETER other than for the intended purpose e Incorrect assembly or installation commissioning operation and mainte nance of the A ISOMETER e Failure to comply with the information in the operating instructions regarding transport commissioning operation and maintenance of the A ISOMETER e Unauthorized structural modifications to the A ISOMETER e Failure to comply with the technical data e Improperly executed repairs and the use spare parts or accessories which are not recommended by the manufacturer e Cases of disaster and force majeure e Assembly and installation with device combinations not recommended This operating manual especially the safety information must be observed above all by personnel who work on the A ISOMETER In addition the rules and regulations that apply for accident prevention at the place of use must be observed TGH1361en 05 2011 7 pe BEN DER Safety information 1 2 1 Personnel Only appropriately qualified staff may work on the A ISOMETER Qualified means familiar with the installation commissioning and operation of the product and with training appropriate to the work Personnel must have read and understood the safety section and warning informa tion in this operating manual 1 2 2 About the operating manual This operating manual has been compiled with the greatest possi
37. he IRDH275 is not suitable for this application contact BENDER Un is too high for direct connection A coupling device providing the respective voltage range must be connected Deenergize the installation before connecting the device yes The two PE connections and KE must be connected separately to the equipotential bonding The terminals L1 and L2 must be connected to Up of the system to be moni tored according to the wiring diagram Connect the supply voltage Us to the terminals A1 and A2 Consider the details indicated on the nameplate When using the RS485 interface take care that a 120 resistor is connected at 11 the beginning and the end of the network Recommended wire cross section of connecting cable single wire 0 2 4 mm2 flexible 0 2 2 5 mm2 An external kQ measuring instrument at M M with a display range of 10 kQ 1000 Scale centre point 120 Output current IRDH275 0 400 pA Output current IRDH275B 0 4 20 mA External TEST button NO contact to the terminals T1 and T2 External RESET button NC contact to the 8 terminals R1 and R2 The output contacts of the alarm relays System fault 21 22 24 Alarm 1 11 12 14 Alarm 2 21 22 24 20 TGH1361en 05 2011 Commissioning flow chart threepart BENDER Commissioning of the A ISOMETER 2 Connect the supply voltage Us Connec
38. lear all on to delete the memory storage and the ESC key to leave the menu Anew 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 TGH1361en 05 2011 37 pe BEN DER Operation and setting 5 3 1 Diagram HISTORY INFO IRDH275B T SYSTEM R gt 010MQ F4 H 4 lt 1 EXIT 2 HISTORY INFO 3 ISO SETUP lt 4 ISO ADVANCED Y 5 COM SETUP 6 PASSWORD 7 LANGUAGE 8 SERVICE f ESC Nr 01 Nr 08 ZEN i Power on i zi i Nr 01 Nr 08 A DENT PO i Gennes v c zunnunnununnununnn OPEP Nr 01 Nr 08 f NO Nr 08 A 28 08 01 17 43 _ o Clear all off i Y Es 4 X Lilla Nr 02 Nr 08 i Nr 02 Nr 08 i A Rmin 010kO E Clear all off 0 2 lt l Nr 02 Nr08 f Nr 02 Nr 08 i 25 08 01 1033 Crear alk off Y 0 4 IRDH275B IRDH275 38 TGH1361en 05 2011 Operation and setting pe BEN DER 5 4 Menu ISO SETUP Setting of the basic A ISOMETER functions AII alarm functions such as Alarm 1 and Alarm 2 prewarning and main alarm the operating principle of the alarm relays K1 and K2 N O operation N C N C operation the fault storage behaviour and a selection of two current output rang es are set in this menu 5 4 1 Response values Alarm 1 and Alarm 2 The response values Ala
39. measurement all other A ISOMETER s are in 16 TGH1361en 05 2011 Function pe BEN DER the STANDBY mode In this way can be prevented that the A ISOMETERs 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 contin uous measurement takes place The advantage is that no auxiliary contacts of a coupling switch are required Furthermore this solution is ideally suited for capac itive IT systems or IT systems connected via diodes An ISOnet slave checks whether there is a Master available in the network If there is no Master available the fault message ISOnet Master appears on the display When the ISOnet function is activated the function input F1 F2 will be disconnect ed BMS bus 85485 IRDH275B Addr 1 IT system 2 TGH1361en 05 2011 17 pe BEN DER Function 18 TGH1361en 05 2011 FZ BENDER 3 Commissioning flow chart threepart Due to limitations of space the three part flow chart begins on the next page The encircled figures in the flow chart correspond to the figures in the legend to the wiring diagram TGH1361en 05 2011 19 BENDER Commissioning flow chart threepart Commissioning of the A ISOMETER 1 Is the system to be monitored an no unearthed system IT system Is the maximum nominal voltage no Un x AC793V or Un DC 650 V T
40. measuring instruments IRDH275B Factory setting 0 20 mA The current output of the IRDH275 be set to 0 20 mA 4 20 mA via the menu point M M The maximum load is 500 Q Function 0 20 mA 20 mA x 120 Rr insulation fault I current in mA Rp 1 120 Function 4 20 mA 16 mA x 120 Rr insulation fault I current in mA Rr mA 120 The associated characteristic curves are illustrated on page 66 TGH1361en 05 2011 41 pe BEN DER Operation and setting 5 5 Menu ISO ADVANCED Setting of the extended functions 5 5 1 External coupling devices AGH no Basic setting no when no coupling device is used factory setting AGH 204 AK80 Terminal AK of the IRDH275 is connected to terminal AK80 of the AGH204S 4 The nominal voltage range is extended to 3AC 0 1650 V Only current converters with an output voltage not exceeding DC 1000 V are allowed to be con nected see operation with coupling device on page 28 AGH 520S Terminal AK of the IRDH275 is connected to terminal 5 of the AGH520S The nomi nal voltage range is extended to AC 0 7200 V Only current converters with an out put voltage not exceeding DC 1000 V are allowed to be connected AGH 204 AK160 Terminal AK of the IRDH275 is connected to terminal AK160 of the AGH204S 4 The nominal voltage range is extended to 0 1300 V Only current converters with an output voltage not exceeding DC 0 184
41. nges RDH275 ominal voltage range Up 3 N AC0 793 V ominal frequency fr for f lt 50 Hz see characteristic curve on page 64 50 460 Hz ominal voltage range DC0 650 V RDH275 435 Supply voltage U see nameplate t AC88 264 V Frequengyirange A E 42 460 Hz Supply voltage U see nameplate s DC 77 286 V RDH 427 Supply voltage U see nameplate neeeeeneeee DC 192 72 V RDH275 POWET CONSUMPIION rice lt 14VA Response values Response value Ran Alarm 1 suine 1kQ 10 MQ Response value Rang Alarm 2 Luini 1kQ 10 MQ Relative uncertainty 20 kQ 1 acc to IEC 61557 8 2007 01 15 Relative uncertainty 1 20 2kQ 20 Relative uncertainty 1 MQ 10 MQ 0 2 MQ 4 20 96 Response time tan at Re 0 5 x Ran and C 1 lE lt 55 easuring time See characteristic curve Hysteresis KO TOKO aaa 2 kQ Hysteresis MOKO cte terre te e Open ai 25 96 Measuring circuit gasumingvoltage Unire lt 50V easuring current max at Re 0 O lt 280 uA DC TeslStance itn onere 180 kQ TGH1361en 05 2011 59 pe BEN DER Technical data IRDH275 B Internal impedance Z at50 Hz nennen gt 180 ka Permissible extraneous DC voltage U amp DC1200V Permissible
42. nt of dam age in transit please inform the Bender company immediately The devices must only be stored in areas protected from dust damp and spray or dripping water and in which the specified storage temperatures are maintained 1 2 5 Note Make sure that the operating voltage is correct Prior to insulation and voltage tests the A ISOMETER must be disconnected from the power system for the duration of these tests In order to check the proper connection of the device it is recommended to carry out a functional test Make sure that the basic settings meet the requirements of the system Children and unauthorized persons must not have access to or contact with the A ISOMETER 1 3 Explanations of symbols and warnings The following symbols are used in Bender documentation to draw attention to im portant information and to make it easier to find certain text passages The follow ing examples explain the meaning of the symbols The Attention symbol is used to draw attention to information warning employees of hazardous situations Information you should know for correct handling of the product is marked with the Info symbol TGH1361en 05 2011 9 pe BEN DER Safety information 1 4 Directions for installation Only one insulation monitoring device may be used in each intercon nected IT system When insulation or voltage test are to be carried out the device shall be isolated from the system for the test period
43. on 31 Topology IRDH275B 54 W Wiring diagram A ISOMETER 25 Wiring of the RS485 network 54 Wrong arrangement 54 74 TGH1361en 05 2011 Bender Inc USA 700 Fox Chase Coatesville PA 19320 Toll Free 800 356 4266 Phone 610 383 9200 Fax 610 383 7100 E mail info bender org Canada 5810 Ambler Drive Unit 1 Mississauga ON LAW 4J5 Toll Free 800 243 2438 Phone 905 602 9990 Fax 905 602 9960 E mail info bender ca com Web http www bender org FZ BENDER
44. orrect arrangement Three examples for correct arrangement 6 3 2 Wrong arrangement Three examples for wrong arrangement Edu 6 3 3 Wiring A suitable type of cable for the wiring of the RS485 network is screened cable core diameter 0 6 mm e g J Y St Y 2 x 0 6 screen on one side connected to earth PE Connection to the terminals A and B The number of bus nodes is restricted to 32 devices When more devices are to be connected Bender recommends to use RS485 repeater 011 _ EA DI1 54 TGH1361en 05 2011 Serial interfaces pe BEN DER 6 4 BMS protocol IRDH275B This protocol is an essential part of the Bender Measuring Device Interface Data transmission generally makes use of ASCII characters Interface data are e Baudrate 9600 baud e transmission 1 start bit 7 data bits 1 parity bit 1 stop bit 1 7 E 1 e 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 iden tified by aunique address The MASTER scans all other devices on the bus cyclically listens to their signals and then carries out specific commands Bus address 1 must be assigned to the Master thus to one of the IRDH27
45. rm 1 and Alarm 2 are selected with the UP DOWN keys and stored with the ENTER key 5 4 2 Operating principle of the alarm relays K1 K2 are factory set to N O Test that means N O operation When the supplement Test has been selected the alarm relays switch over during a manual self test If for any reason the alarm relays may not switch over during a manual 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 OTest N O operation contacts 11 12 14 with relay test the alarm relay is deenergized during normal operation K1 N C N C operation contacts 11 12 14 without relay test the alarm relay is energized during normal operation K1 N O N O operation contacts 11 12 14 without relay test the alarm relay is deenergized during normal operation K1 Flash Flashing function contacts 11 12 14 the alarm relay and the LED flash in the event of an alarm message approximately 0 5 Hz K2 N C Test N C operation contacts 21 22 24 with relay test the alarm relay is energized during normal operation K2 N OTest N O operation contacts 21 22 24 with 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 ala
46. rm 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 message approximately 0 5 Hz TGH1361en 05 2011 39 BENDER Operation and setting Diagram ISO SETUP T SYSTEM R gt 010MQ Ft 1 EXIT 2 HISTORY INFO 3 ISOSETUP 4 150 ADVANCED 5 COM SETUP Y l 6 PASSWORD 7 LANGUAGE 8 SERVICE t 1 Exit 2 Alarm1 100 lt l J Alarmi 100KO ql 3 Alarm2 200 4 K1 NO Y 5 K2 N O lt 6 Memory off 4 i 7 M M 0 20 mA Alarm2 200 0 y 4l K1 N O i lt 7 K1 N O Test P K1 N C Test 12 777 Flash Pd K1 N 0 K2 N O A lt d Y Memory off lt l Memory on Memory off I IRDH275B lt IRDH275 URNA M M 0 20 mA M M 4 20 mA 40 TGH1361en 05 2011 Operation and setting pe BEN DER d During the automatic selftest the alarm relays are not switched over When a device fault occurs at the A ISOMETER the relay K2 will au d tomatically be activated as a device fault relay 5 4 3 Memory setting on off Memory on Fault memory is activated The device must be reset with the RESET button after Clearing the fault Memory off Fault memory deactivated factory setting 5 4 4 Current output for external
47. s allow navigation within the menu Pressing the INFO key provides the following information without 255 opening the menu e Device name firmware version Response values Alarm 1 and Alarm 2 Leakage capacitance C only indication if insulation resistances gt 20 e Setup status for details refer to the table of the status numbers on page 68 COM Setup IRDH275 bus address Please have the details above on hand if you have a problem and if you contact Bender for technical questions v Activating the TEST button starts the A A ISOMETER self test Pressing the RESET button resets insulation fault alarms stored in the A ISOMETER The memory func tion is only available after activating the fault memory in the ISO SETUP menu or af ter bridging the terminals R1 R2 Furthermore the A ISOMETER can only be reset when the present insulation value is 25 higher than the set response value lt i 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 Arrow up key Moving up in the menu increasing a parameter y TGH1361en 05 2011 33 pe BEN DER Operation and setting Arrow down key Moving down in the menu reducing a parameter E 6 q J ENTER key Selecting a menu item or sub menu item confirming or storing a pa rameter change and going back to the associated
48. standard indication but instead of the indication of the measuring pulse the selected bus address is in dicated Without pressing a key the indication changes to the standard indication of the IRDH275B after about five minutes If there is no information available from the selected A ISOMETER the message HINO DATA will be displayed Bus SCANNING Information is being searched R ADR 02 IIIINO DATA No data found R K ADR 02 Insulation Fault Current data address 03 R 010K ADR 03 TGH1361en 05 2011 45 pe BEN DER Operation and setting 5 6 4 Diagram COM SETUP IRDH275B T SYSTEM R gt 010MQ Ft H 1 2 HISTORY INFO 3 ISO SETUP 4 ISO ADVANCED 5 COM SETUP 6 7 8 4 PASSWORD LANGUAGE SERVICE lt 2Addr 003 i 003 P dE s ni Pes 450 Monitor H lt ADR 030 FONT i lt iSONet off lt ISONet on IRDH275 IONI No DATE 4 i IRDH275B R ADR 01 ADR 01 ADR 30 46 TGH1361en 05 2011 Operation and setting pe BEN DER 5 7 Menu PASSWORD 5 7 1 Activating and setting the password This menu can be used to activate a Password query This protects the A ISOMETER against unauthorized settings and modifications The desired pass word menu item 2 Password xxx can be set with the UP DOWN keys and con
49. sub menu item or going to the next input area ESC key e r Returning from a sub menu to the previous menu 2 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 lt y ESC 34 TGH1361en 05 2011 Operation and setting pe BEN DER 5 2 Menu structure and menu mode Switchover to the menu mode After pressing the MENU key you can change from the standard mode to the menu mode From the menu mode you can link to the different sub menus Navigation within the menu Select the desired menu item using the UP DOWN keys The selected menu item is indicated by a flashing cursor Press the ENTER key to open the associated sub menu Use the UP DOWN keys again to select the desired parameters Move the cursor to the edit field by pressing the 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 parameters can be changed using the UP DOWN keys Entering the correct password once allows all parameters to be changed as long as you do not leave the menu Changing
50. t the voltage Un of the IT system to be monitored Only IRDH275B set the clock Shall the basic setting be changed Alarm1 40 Alarm2 10 K1 K2 N O operation Memory off The A ISOMETER carries out a self test The display indicates the insulation value after finishing the measurement Select ISO SETUP see chapter operation and setting Does one of the alarm LEDs light up The insulation value of the system being monitored is below the preset response value Change the response value or improve the insulation condition of the system TGH1361en 05 2011 21 BENDER Commissioning flow chart threepart Commissioning of the A ISOMETER 3 In order to check the proper connection functional test using a suitable resistance is to be carried out Size of the resistance 50 of the preset response value Alarm 2 Do both alarm LEDs light up Check the connecting leads Is voltage Un applied to the Did the alarm relays switch no yes es Remove the resistor y terminals L1 L2 When a coupling device is used is it correctly connected Check the voltages with a voltmeter Do both alarm LEDs light 2 Did the alarm relays switch Alarm LEDs extinguished Did the output relays change their position yes The IRDH275 is correctly connected and functions reliably
51. tette mtt te Ia 2xM4 The values marked with are absolute values TGH1361en 05 2011 61 pe BEN DER Technical data IRDH275 B 7 2 Standards approvals and certifications The A ISOMETER was designed under consideration of the following standards DIN EN 61557 8 VDE 0413 8 2007 12 EN 61557 8 2007 IEC 61557 8 2007 Corrigendum 2007 05 IEC 61326 2 4 2006 06 Ed 1 0 DIN EN 60664 1 VDE 0110 1 2008 01 DIN EN 60664 3 VDE 0110 3 2003 09 ASTM F1669M 96 2002 ASTM F1207M 96 2002 cus LISTED 62 TGH1361en 05 2011 Techn ical data IRDH275 B WZ BENDER Ce uF Z BENDER Technical data IRDH275 B Max AC voltage between the IT system and earth in the frequency range 50 Hz Un V 10000 3 innn AGH520S Kil S st S AGH204S 4 S 1000 S 26 RDH275 100 01 0 3 1 10 100 fn Hz 64 TGH1361en 05 2011 Technical data IRDH275 B BENDER Current output 0 400 only IRDH275 Rr 10000 00 1000 00 100 00 10 00 1 00 0 0 100 0 200 0 300 0 Rp AOOLAXIZOKO 40 Rr Insulation fault in Current output in mA 400 0 l pA TGH1361en 05 2011 65 pe BEN DER Technical data IRDH275 B Current output 0 20 mA IRDH275B Re kQ 10 000 10
52. 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 param eter 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 IRDH275 defective 8 Two line display for standard and menu mode A detailed description of the operating elements is given on the following pages TGH1361en 05 2011 31 pe BEN DER Operation and setting 5 1 1 Display in the standard mode Insulation Fault Rs 011kQ H Indication of the insulation resistance in kQ Additional information about the insulation resistance insulation fault at L insulation fault at L s new measurement has started 3 polarity of the measuring pulse e 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 N 5 1 2 Display in the menu mode 1 EXIT amp Parameter change is permitted 2 HISTORY INFO g Parameter change is blocked enabling by a password 32 TGH1361en 05 2011 Operation and setting pe BEN DER 5 1 3 Function keys Two functions are assigned to each function key In addition to the basic function marked with a circle all the key
53. the parameter usually has an immediate effect on the measuring and alarm functions The changed parameter is stored in a volatile memory by pressing the ENTER or ESC key after returning to the sub menu flashing cursor in column 1 During menu operations all measuring and alarm functions carry on working as usual in the background Changing from the menu mode to the standard mode Pressing the ESC key allows fast changing from the menu mode to the standard 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 minutes in a main or sub menu TGH1361en 05 2011 35 BENDER Operation and setting 5 2 1 Diagram menu structure IT SYSTEM R gt 010 MQ ESC 1 EXIT 2 HISTORY INFO 3 150 SETUP 4 150 ADVANCED 5 SETUP 6 PASSWORD 7 LANGUAGE 8 SERVICE 4 HISTORY INFO INr 01 Nr 02 i Poweron ISO SETUP 1 Exit 2 Alarm1 040 3 Alarm2 010 4 K1 N O 5 K2 N O 6 Memory on ISO ADVANCED COM SETUP 1 Exit 2 AGH no 3 Ce max 150 uF 4 Measure AMP 5 Autotest 24h i 6 Clock 19 08 i 7 01 01 01 8 Test Addr 003 ISONet off 150 Monitor PASSWORD 1 Exit 2 Password XXX 3 Status off LANGUAGE SERVICE Insert
54. tion 4 2 Wiring diagrams with coupling devices Please observe the settings in the ISO ADVANCED AGH menu Adapt a the settings to the coupling device to be used 4 2 1 Connection with AGH150W 4 Connected to the A ISOMETER this coupling device extends the nominal voltage range to DC 1760 V in DC systems 000000 AK160 AGH150W 4 Achtung Hochspannung Danger High Voltage 200820088 IRDH275 Un DC 0 1760 V 26 TGH1361en 05 2011 Connection pe BEN DER 4 2 2 Connection with AGH520S Connected to the A ISOMETER this coupling device extends the nominal voltage range to AC 7200 V in pure AC systems In case of 3 AC systems Pin 2 of AGH520S is to be connected to L1 in case of 3 N AC systems Pin 2 is to be connected to the N conductor Un 3 N AC 0 7200 V 42 460 Hz IRDH275 TGH1361en 05 2011 27 P BEN DER Connection 4 2 3 Connection with AGH204S 4 This coupling device extends the nominal voltage range of A ISOMETER s used in AC systems including rectifiers AK160 80 7 AGH204S 4 7 U3 1 without rectifiers Un 3AC 0 1650 V DC 1000 V Un 0 1300 V max AC voltage max DC voltage 2 with rectifiers after rectifiers in intermediate circuits of frequency con verters 1840 V The maximum DC voltage is the voltage permitted to occur in the AC part of an IT syst
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