
Mode CHAdeMO (CHd and CHA)
System voltage Un.............Measuring mode only from Un≥ 50 VDC
Permissible system leakage capacitance Ce.... per conductor ≤ 1,6 µF
One-pole fault RFU :
Measuring and display range and RFU :...........................1 k ... 2 M
Measurement uncertainty RFU / Relative uncertainty Ran:
Un≥ 100 V und ≤ 200 k.....................................±15 %, ±2 k
Un> 200 V............................................................±15 %, ±2 k
Two-pole fault RFS (only CHd mode):
Measurement uncertainty RFS / Relative uncertainty Ran :
< 160 k...............................................................±15 %, ±2 k
Measurement uncertainty Ce:
RF< 10 k.........................................................no measurement
RF≥ 10 k..........................................................±15 %, ±0.1 µF
Response time tan :
Ran = 1.2 x RFU and RFU ≤ 100 k and Un> 100 V..............≤ 1.0 s
Ran = 1.2 x RF......................................................................≤ 10 s
Interface
Interface/protocol .......................RS-485/BMS, Modbus RTU, isoData
Baud rates:
BMS...............................................................................9,6 kBit/s
Modbus RTU ...............................................................einstellbar
isoData.................................................................... 115,2 kBits/s
Cable length (9.6 kBits/s) ..................................................≤ 1.200 m
Cable: twisted pairs.............................................min. J-Y(St)Y 2 x 0.6
Terminating resistor .......120 (0.25 W), internal, can be connected
Device address, BMS bus, Modbus RTU ........................... 3…90 (3)*
Connection (isoCHA425HV and AGH420-1)
Connection type................................... Screw or push-wire terminals
Screw terminals:
Nominal current.......................................................................≤ 10 A
Tightening torque.................................... 0,5…0,6 Nm (5…7 lb-in)
Conductor sizes.............................................................AWG 24…12
Stripping length........................................................................ 8 mm
Rigid / flexible............................................................ 0.2…2.5 mm2
Flexible with ferrules with/without plastic sleeve.............................
.................................................................................. 0.25…2.5 mm2
Multiple conductor rigid .............................................0.2…1.5 mm2
Multiple conductor flexible......................................... 0.2…1.5 mm2
Multiple conductor with ferrules without plastic sleeve....................
.................................................................................. 0.25…1.5 mm2
Multiple conductor flexible with TWIN ferrules with plastic sleeve ...
.................................................................................. 0.25…1.5 mm2
Mode CHAdeMO (CHd und CHA)
Netzspannung Un...........................Messbetrieb erst ab Un≥ 50 VDC
Zulässige Netzableitkapazität Ce..............................je Leiter ≤ 1,6 µF
Einpoliger Fehler RFU :
Mess- und Anzeigebereich RFU .......................................1 k ... 2 M
Messunsicherheit RFU / Ansprechunsicherheit Ran :
Un≥ 100 V und ≤ 200 k.....................................±15 %, ±2 k
Un> 200 V............................................................±15 %, ±2 k
Zweipoliger Fehler RFS (nur CHd Mode):
Messunsicherheit RFS / Ansprechunsicherheit Ran :
< 160 k...............................................................±15 %, ±2 k
Messunsicherheit Ce:
RF< 10 k............................................................ keine Messung
RF≥ 10 k..........................................................±15 %, ±0,1 µF
Ansprechzeit tan :
Ran = 1,2 x RFU und RFU ≤ 100 k und Un> 100 V .............≤ 1,0 s
Ran = 1,2 x RF......................................................................≤ 10 s
Schnittstelle
Schnittstelle/Protokoll.................RS-485/BMS, Modbus RTU, isoData
Baudraten:
BMS...............................................................................9,6 kBit/s
Modbus RTU ...............................................................einstellbar
isoData.................................................................... 115,2 kBits/s
Leitungslänge (9,6 kBits/s) ................................................≤ 1200 m
Leitung: paarweise verdrillt................................min. J-Y(St)Y 2 x 0,6
Abschlusswiderstand................. 120 (0,25 W), intern, zuschaltbar
Geräteadresse, BMS-Bus, Modbus RTU............................ 3…90 (3)*
Anschluss (isoCHA425HV und AGH420-1)
Anschlussart...........................................Schraub- oder Federklemme
Schraubklemmen:
Nennstrom ..............................................................................≤ 10 A
Anzugsmoment ....................................... 0,5…0,6 Nm (5…7 lb-in)
Leitergrößen ................................................................AWG 24…12
Abisolierlänge............................................................................8 mm
Starr / flexibel ............................................................ 0,2…2,5 mm2
Flexibel mit Aderendhülse mit/ohne Kunststoffhülse........................
.................................................................................. 0,25…2,5 mm2
Mehrleiter starr .......................................................... 0,2…1,5 mm2
Mehrleiter flexibel ...................................................... 0,2…1,5 mm2
Mehrleiter flexibel mit Aderendhülse ohne Kunststoffhülse..............
.................................................................................. 0,25…1,5 mm2
Mehrleiter flexibel mit TWIN Aderendhülse mit Kunststoffhülse.......
.................................................................................. 0,25…1,5 mm2
ISOMETER® isoCHA425HV & AGH420-1
isoCHA425HV_D00404_04_Q_DEEN/ 02.2023 9