
Response values
Response value Ran1......................................... 2…500 kΩ (10 kΩ)*
Response value Ran2........................................... 1…490 kΩ (5 kΩ)*
Relative uncertainty Ran ............................... ±15 %, at least ±1 kΩ
Hysteresis Ran ..................................................... 25 %, at least 1 kΩ
Undervoltage detection U<.............................. 30…1.14 kV (off)*
Overvoltage detection U> ................................ 31…1.15 kV (off)*
Relative uncertainty U...................................... ±5 %, at least ±5 V
Relative uncertainty depending on the frequency ≥ 200 Hz ...........
.......................................................................................-0.03 %/Hz
Hysteresis U........................................................... 5 %, at least 5 V
Time response
Response time tan at RF = 0.5 x Ran and Ce=1 μF acc. to IEC 61557-8
...............................................................................................≤ 10 s
Start-up delay t.........................................................0…10 s (0 s)*
Response delay ton.....................................................0…99 s (0 s)*
Delay on release toff ...................................................0…99 s (0 s)*
Interface
Interface/protocol.....................RS-485/BMS, Modbus RTU, isoData
Baud rates
BMS...............................................................................(9,6 kBit/s)
Modbus RTU.............................................................(configurable)
isoData .....................................................................(115,2 kBit/s)
Cable length (9.6 kBit/s).................................................≤ 1,200 m
Cable (shield connected to PE on one side):
recommended:......................................... CAT6/CAT7 min. WG23*
twisted pairs:..................................................min. J-Y(St)Y 2 x 0.8
Terminating resistor..... 120 Ω (0.25 W), internal, can be connected
Device address, BMS bus, Modbus RTU..........................3…90 (3)*
Connection
Connection type..........................screw-type or push-wire terminal
Screw-type terminal:
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
Multi-conductor rigid..............................................0.2…1.5 mm²
Multi-conductor flexible..........................................0.2…1.5 mm²
Multi-conductor flexible with ferrules without plastic sleeve ........
..............................................................................0.25…1.5 mm²
Multi-conductor flexible with TWIN ferrules with plastic sleeve
..............................................................................0.25…1.5 mm²
Ansprechwerte
Ansprechwert Ran1 ........................................... 2…500 kΩ (10 kΩ)*
Ansprechwert Ran2 ............................................ 1…490 kΩ (5 kΩ)*
Ansprechunsicherheit Ran ...................... ±15 %, mindestens ±1 kΩ
Hysterese Ran ................................................25 %, mindestens 1 kΩ
Unterspannungserkennung U<........................ 30…1,14 kV (off)*
Überspannungserkennung U>......................... 31…1,15 kV (off)*
Ansprechunsicherheit U.............................±5 %, mindestens ±5 V
Frequenzabhängige Ansprechunsicherheit ≥ 200 Hz......................
.......................................................................................-0,03 %/Hz
Hysterese U.....................................................5 %, mindestens 5 V
Zeitverhalten
Ansprechzeit tan bei RF = 0.5 x Ran und Ce=1 μF nach IEC 61557-8 ...
...............................................................................................≤ 10 s
Anlaufverzögerung t.................................................0…10 s (0 s)*
Ansprechverzögerung ton ..........................................0…99 s (0 s)*
Rückfallverzögerung toff ............................................0…99 s (0 s)*
Schnittstelle
Schnittstelle/Protokoll..............RS-485/BMS, Modbus RTU, isoData
Baudraten
BMS...............................................................................(9,6 kBit/s)
Modbus RTU................................................................(einstellbar)
isoData .....................................................................(115,2 kBit/s)
Leitungslänge (9,6 kBit/s)................................................≤ 1200 m
Leitung (Schirm einseitig an PE)
empfohlen:.................................................. CAT6/7 min. AWG23*
alternativ paarweise verdrillt:........................min. J-Y(St)Y 2 x 0,8
Abschlusswiderstand................120 Ω (0,25 W), intern, zuschaltbar
Geräteadresse, BMS-Bus, Modbus RTU ..........................3…90 (3)*
Anschluss
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 ohne Kunststoffhülse
..............................................................................0,25…1,5 mm²
6 isoPV425_D00028_04_Q_DEEN/ 11.2022
ISOMETER® isoPV425