A-ISOMETERÂ® IRDH375 IRDH375B - Bender

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Safety information1.3 Explanations of symbols and warningsThe following symbols are used in BENDER documentation to draw attentionto important information and to make it easier to find certain text passages.The following examples explain the meaning of the symbols:The "Attention" symbol is used to draw attention to informationwarning employees of hazardous situations.Information you should know for correct handling of the product ismarked with the "Info" symbol.10 TGH1352en/11.2004
Safety information1.4 Directions for installationOnly one insulation monitoring device may be used in each interconnectedungrounded (IT) system.When insulation or voltage test are to be carried out, the device shallbe isolated from the system for the test period.The terminals and KE shall be connected by a separate wire to the protectiveconductor (PE). If the terminals L1, L2 of the device are connected toa system under operation, the terminals and KE must not be disconnectedfrom the protective conductor (PE).In order to check the proper connection of the device, it is recommended tocarry 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:ISO SETUP: Alarm 1 / Alarm 2 =40 kΩ / 10 kΩ(response values)ISO SETUP:Operating principle K1/K2 = N/O operationISO SETUP:Memory = offISO ADVANCED: System leakage capacitance = 150 µFCOM SETUP:Bus address = 3 (slave)Please check if the basic setting of the A-ISOMETER® complies with the requirementsof the system to be monitored.When an AC system includes galvanically connected DC circuits, thefollowing shall be considered:Insulation faults in DC circuits can only be monitored correctly whenthe rectifiers carry a continuous load of 5...10 mA.TGH1352en/11.200411
Page 1 and 2: Operating ManualInsulationR =010KWf
Page 3 and 4: Table of Contents1. Safety informat
Page 5 and 6: Table of Contents5.6.1 Bus address
Page 7 and 8: 1. Safety information1.1 Use for th
Page 9: Safety information1.2.4 Inspection,
Page 13 and 14: 2. Function2.1 Common characteristi
Page 15 and 16: Functionmessage, provided that the
Page 17 and 18: Function2.5 Additional functions IR
Page 19 and 20: FunctionISOnet Function (COM SETUP)
Page 21 and 22: 3. Commissioning flow chart (threep
Page 23 and 24: Commissioning flow chart (threepart
Page 25 and 26: 4. Connection4.1 WiringIRDH375(B) h
Page 27 and 28: ConnectionLegend to wiring diagram:
Page 29 and 30: Connection4.2.2 Connection with AGH
Page 31 and 32: ConnectionIn case of current-contro
Page 33 and 34: 5. Operation and setting5.1 Operati
Page 35 and 36: Operation and setting5.1.3 Function
Page 37 and 38: Operation and settingTGH1352en/11.2
Page 39 and 40: Operation and setting5.2.1 Diagram
Page 43 and 44: Operation and settingDiagram ISO SE
Page 45 and 46: Operation and setting5.5 Menu ISO A
Page 51 and 52: Operation and setting5.8 Menu LANGU
Page 53 and 54: 6. Serial interfacesThe A-ISOMETERs
Page 55 and 56: Serial interfaces6.2 RS485 interfac
Page 57 and 58: Serial interfaces6.4 BMS protocol (
Page 59 and 60: Serial interfacesThe following tabl
Page 61 and 62:
7. Technical data IRDH375(B)7.1 Dat
Page 63 and 64:
Technical data IRDH375(B)General da
Page 65 and 66:
Technical data IRDH375(B)7.3 Charac
Page 67 and 68:
Technical data IRDH375(B)Current ou
Page 69 and 70:
Technical data IRDH375(B)Current ou
Page 71 and 72:
Technical data IRDH375(B)Dimension
Page 73 and 74:
Technical data IRDH375(B)7.4.3 Coup
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INDEXAAGH... 28Alarm LED 1 33Alarm
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INDEX77 TGH1352en/11.2004
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A-ISOMETERÂ® IRDH375 IRDH375B - Bender

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