EDS470 - Bender

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System c omponents Special notes for the use of the IRDH265/365-4: • Software version must be at least V. 2.5 (see nameplate); • Use contacts 11/12/14 for prewarning (alarm 1); • Use contacts 21/22/24 for starting the EDS470 (alarm 2); • Operating mode alarm relay: N/O operation (corresponds to factory preset); • Coupling monitoring: active (corresponds to factory preset); • Measuring principle: AMP (corresponds to factory preset); • Set the insulation monitoring device to test mode via the terminals PT during EDS fault location (see wiring diagrams); • Fault memory OFF (remove bridge ). Special notes for the use of the IRDH265/365-3: • Software version must be at least V. 2.5 (see nameplate); • Use contacts 11/12/14 for prewarning (alarm 1); • Use contacts 21/22/24 for starting the EDS470 (alarm 2); • Operating mode alarm relay: N/O operation (corresponds to factory preset); • Coupling monitoring: deactivated (no factory setting ); • Measuring principle: AMP (corresponds to factory preset); • Set the insulation monitoring device to test mode via the terminals PT during EDS fault location (see wiring diagrams); • Disconnect the insulation monitoring device from the system during; EDS470 fault location (see chapter ”Disconnection of the insulation monitoring device”); • Fault memory OFF (remove bridge ). IR475LY In contrast to the IRD265/365-X series, the IR475 insulation monitoring device does not have an LC display. All the device parameters are set by means of hardware. Plastic enclosure with 45 mm distribution panel cut-out, for DIN rail mounting or screw mounting. A1 • A2 • L1 AK L2 • A-ISOMETER® IR 475 TEST RESET ON KE ∞ 60 40 20 10 8 6 ALARM KK2K1 K2 ALARM 1 2 + ~ - AL / Sys AL 1 / 2 AL 2 / 1 - / Res 4 11 12 14 K1 kΩ M+ M- T R1 R2 • 21 22 24 2 x1 x10 kΩ 2• 10 10 K2 MONITOR ALARM 1 ALARM 2 50 Internal DC resistance: 200 kΩ Response value R Alarm1 : 2 … 100 kΩ; R Alarm2 : 10 … 500 kΩ Operating range of the nominal voltage: (3) AC 0 … 820 V, 15 … 400 Hz, DC 0 … 480 V Max. system leakage capacitance: 20 µF Special notes for the use of the IR475LY • Use contacts 11/12/14 for prewarning (alarm 1); • Use contacts 21/22/24 for starting the EDS470 (alarm 2); • Operating mode alarm relay: N/O operation (corresponds to factory preset); • Set the insulation monitoring device to test mode via the terminal during EDS fault location (see wiring diagrams); • Fault memory OFF. 30 TGH 1243E/02.2000
System c omponents Planning assistance The EDS470 system is designed in a way that it is simple for the user to plan and install. The following basic points should be taken into consideration during the planning: • Nominal voltage of the system to be monitored. Might it be necessary to use a coupling device AGE470 • Number of the subcircuits to be monitored • Which measuring current transformer diameter is required • Which type of measuring current transformer is appropriate Might any split-core measuring current transformers be required • Specify the number of the EDS470 devices which are required. To obtain the number, divide the number of measuring current transformers by 12. • Consider the cable length between the measuring current transformer and the insulation fault evaluator. • Are all the EDS470-12 devices to be controlled centrally via one PRC470 Indeed, is a PRC470 indispensable due to complexity of the system or due to interference influences Note: one PRC470 can control up to 30 EDS470-12, that is to say up to 360 measuring current transformer subcircuits. • Take account of the measuring time for the system. Note: the measuring time does not increase if additional EDS470-12 insulation fault evaluators are installed, since all EDS470-12 are scanned in parallel. • Consider the length of the interface cable between the individual devices! The cable length must not exceed 1200 m. Subcircuits must be limited to a maximum of 1 m in length. • Are any particular interferences to be expected in the system The cases of such interferences may include variable-speed drives, power converters, actuators, suppressor filters, SPCs, or controlling elements which cause DC parasitics or transients. In these cases, please speak with BENDER´s product manager (see Apendix A). Insulation fault location system without a PRC470 : Connect the PGH471 and EDS470-12 in series via the RS485 bus. Set the PGH471 as MASTER and all the EDS470s as SLAVES. Insulation fault location system with a PRC70: Connect the PRC470, PGH471 and the EDS470s in series via the RS485 bus. Set the PGH470 as MASTER (factory setting) and PGH471 as well as all the EDS470s as SLAVES. Starting the insulation fault location system: A potential free output contact (change-over contact) should be used in order to start up. In this case, the NO contact can be connected to terminals GND/ IN1…IN2 of the PGH471. Important: never use both the inputs IN1 and IN2 at the same time. • Connection of the NO contact (21/24) to the terminals GND and IN1 : The insulation fault location is started and is continued as long as the contact is closed. After each pass there is an idle period for 5 minutes in which the insulation monitoring device can detect new measuring values. In systems with low interferences the maximum measuring time for one pass (max. 360 measuring current transformer) is approx. 5 minutes. The EDS470 system can be stopped by: - opening of GND/IN1 - operating the STOP button on the PGH471 - software stop in menu 2 (EDS START) of the PRC470 - closing GND/IN3 31 TGH 1243E/02.2000
Page 1 and 2: EDS470 BENDER Ground Fault Location
Page 3 and 4: Contents Edition dated 02/2000 1 Ge
Page 5 and 6: General Operating range of the nomi
Page 7 and 8: 2 Safety instructions Intended use
Page 9 and 10: 3 Warranty and liability Inspection
Page 11 and 12: Operating principle of the EDS470 s
Page 13 and 14: A1(+) A2(-) L1 (L/+) L2 (L/-) L3 AK
Page 15 and 16: System c omponents PGH471 The PGH47
Page 17 and 18: System c omponents Address setting
Page 19 and 20: System c omponents DIP switches EDS
Page 21 and 22: System c omponents PRC470 In an EDS
Page 23 and 24: System c omponents The standardized
Page 25 and 26: System c omponents Measuring Curren
Page 27 and 28: System c omponents Measuring curren
Page 29: System c omponents Insulation monit
Page 33 and 34: 6 Installation and wiring Please co
Page 35 and 36: MONITOR Installation and wir ing Fu
Page 37 and 38: Installation and wir ing Example fo
Page 39 and 40: EDS470 ON K1 ALARM K2 K3 FAULT K4 1
Page 41 and 42: Installation and wir ing Legend for
Page 49 and 50: Installation and wiring • Check f
Page 51 and 52: Settings and adjustmen ts Character
Page 53 and 54: Settings and adjustmen ts Character
Page 55 and 56: Settings and adjustmen ts Theoretic
Page 57 and 58: Settings and adjustmen ts PRC470 Al
Page 59 and 60: Settings and adjustmen ts Software
Page 61 and 62: Settings and adjustmen ts Menu 2: E
Page 63 and 64: Settings and adjustmen ts PRC 470 a
Page 65 and 66: Settings and adjustmen ts Menu 6: R
Page 67 and 68: Settings and adjustmen ts PRC 470 k
Page 69 and 70: Settings and adjustmen ts Display t
Page 71 and 72: Initial operation Insulation fault
Page 73 and 74: System e xtensions and options Devi
Page 75 and 76: System e xtensions and options Lege
Page 77 and 78: System e xtensions and options SMO4
Page 79 and 80: System e xtensions and options EDS1
Page 81 and 82:
ON EDS165 System e xtensions and op
Page 83 and 84:
11 Increasing the sensitivity The t
Page 85 and 86:
Increasing the sensitivity Legend f
Page 87 and 88:
Means for fault location FAULT LED
Page 89 and 90:
Technic al data Technical data PGH4
Page 91 and 92:
Technic al data Technical data SMO4
Page 93 and 94:
Technic al data Technical data meas
Page 95 and 96:
Technic al data 2...10 72 144 13 13
Page 97 and 98:
Ordering information Type Internal
Page 99 and 100:
Index Insulation monitoring devices
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EDS470 - Bender

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