ISOMETER® isoPV1685RTU Insulation monitoring device for unearthed photovoltaic systems Image similar

for unearthed photovoltaic systems Device features ISOMETER® for photovoltaic systems. • Insulation monitoring of large PV systems • Measurement of insulation faults 200 Q...1 MO • Automatic adjustment to high system leakage capacitances • Combination of AMPPLUS and other profile-specific measurement methods • Separately adjustable response values Ran1 (Alarm 1) and Ran2 (Alarm 2) for prewarning and alarm • Connection monitoring of L+, L- for polarity reversal • Device self test with automatic alarm message in the event of a fault • gSD card (not equipped) with data logger and history memory...

Wiring diagram Digital input: Reset / (Memory) Digital input: Test CAN1, CAN2 No function RS485 Term. RS-485 termination off / on A, B, S RS-485 bus connection (A, B) BMS protocol: PE potential, connect one end of shield (S) Relay output for internal device errors (LED SERVICE) Relay output for alarm insulation faults (LED ALARM 2) Relay output for prewarning insulation faults (LED ALARM 1) Separate connection of E (earth) and KE (reference) to PE Connection to supply voltage (via fuses, 2 A each) Connection to L1/+ of the IT system via 1 A fuse Connection to L2/− of the IT system via 1 A fuse...

Diagrams System leakage capacitance The determination of the leakage capacitance depends on the size of the insulation resistance. Examples – – minimum measurable leakage capacitance at RF = 50 kΩ: 35 µF minimum measurable leakage capacitance at RF = 5 kΩ: 210 µF Response time ADVICE In the case of a leakage capacitance of 2000 µF, the measuring range for the insulation resistance is limited to 50 kΩ.

Technical data Rated impulse voltage 10 kV Voltage range Nominal system voltage range Un Nominal frequency range Tolerance of Un Supply voltage Us Power consumption Serial interface Modbus RTU (Slave); switchable Connection Terminals A/B Shielded cable 2-core, > 0.6 mm2, e.g. J-Y(St)Y 2x0.6 (shield to functional earth on one end) Terminating resistor, can be connected (RS-485 Term.) 120 O (0.5 W) Device address, BMS bus or Modbus adjustable 2.17 Measuring circuit for insulation monitoring Switching elements Measuring voltage Um (peak) ± 50 V Permissible extraneous DC voltage Ufg < DC 1500 V Permissible...

Ambient temperature during operation -40.+70 °C Ambient temperature transport -40.+80 °C Ambient temperature long-term storage -25...+80 °C Classification of climatic conditions acc. to IEC 60721: The ISOMETER® isoPV1685RTU was developed in compliance with the following standards: Classification of mechanical conditions acc. to IEC 60721: Atmospheric pressure 700.1060 hPa (max. height 4000 m) continuous operation vertical, system coupling on top lens head screw DIN7985TX 4.5 Nm IP30 IP30 <1300g Operating mode Position of normal use PCB fixation Tightening torque Degree of protection, internal...

Ordering details Model Response value Supply voltage

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