A-ISOMETERÂ® IRDH375 IRDH375B - Bender

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Serial interfacesStart US= Unit separator US US02H 0FH 30H 30H 30H 31H 32H 38H 0FH 30H 30H 30H 30H 36H 30H 0FHMeasuring valuee.g. 128 kWResponse valueAlarm1 e.g. 60 kWUS US US US EndLFCR30H 30H 30H 31H 32H 30H 0FH 30H 0FH 30H 0FH 30H 0FH 03H10H13HResponse valueAlarm2 e.g. 120 kW30H = No alarm31H = Alarm132H = Alarm233H = Alarm1/230H = K1 off, K2 off31H = K1 on, K2 off32H = K1 off, K2 on33H = K1 on, K2 on30H = AC fault31H = DC- fault32H = DC+ faultExample: terminal displayMeasuring value128 KWAlarm160 KWAlarm2120 KWAC faultAlarm2K1 off, K2 on54 TGH1352en/11.2004
Serial interfaces6.2 RS485 interface with BMS protocol (<strong>IRDH375</strong>B)The RS485 interface galvanically isolated from the device electronics and currentoutput serves as a physical transmission medium for the BMS protocol.If several <strong>IRDH375</strong>B or other bus-capable devices are interconnected in anetwork via the BMS bus, the BMS bus must be terminated at both ends witha 120 Ω resistor.An RS485 network that is not terminated, is likely to get instable and mayresult in malfunctions. Only the first and the last device in one line may beterminated. Devices in between must not be terminated with 120 Ω. Hence,stub feeders in the network must not be terminated. The length of the stubfeeders is restricted to 1 meter.1st device ... device last deviceA B A B A B120 W0.4 WStub feedermaximum 1 m120 W0.4 WMaximum length of the RS485 bus: 1200 mTGH1352en/11.200455
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 and 10: Safety information1.2.4 Inspection,
Page 11 and 12: Safety information1.4 Directions fo
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: 6. Serial interfacesThe A-ISOMETERs
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
Page 75 and 76: INDEXAAGH... 28Alarm LED 1 33Alarm
Page 77 and 78: INDEX77 TGH1352en/11.2004
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A-ISOMETERÂ® IRDH375 IRDH375B - Bender

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