Function; Features Isopv1685Rtu And Isopv1685P - Bender ISOMETER isoPV1685RTU Manual

Function

3. Function

3.1 Features isoPV1685RTU and isoPV1685P

• Insulation monitoring of large-scale photovoltaic systems
• Measurement of low-resistance insulation faults
• Separately adjustable response values R
200 Ω...1 MΩ) for prewarning and alarm. R
• Automatic adjustment to high system leakage capacitances up to 2000 µF,
selectable range
• Connection monitoring of L+, L- for reverse polarity (DC only)
• Integrated locating current injector up to 50 mA (isoPV1685P only)
• Device self test with automatic message in the event of a fault
• Alarm relays separately adjustable for insulation fault 1, insulation fault 2 and device
error
• CAN interface to output measured values, statuses and alarms
• RS-485 interface
– isoPV1685P: BMS bus, e.g. to control the insulation fault location
– isoPV1685RTU: BMS bus or Modbus (can be switched using the DIP switch)
• µSD card with data logger and history memory for alarms
Tabular overview of features
Insulation fault localisation
(locating current injector)
Digital inputs
µSD card
CAN bus
BMS bus
Modbus RTU
* The µSD card is not equipped, but can be inserted later.
isoPV1685xxx_D00007_08_M_XXEN/03.2023
The device version isoPV1685P provides a locating current injector.
isoPV1685RTU
The isoPV1685RTU uses the RS-485 interface for the BMS bus or for
Modbus RTU: The device can be switched between BMS and Modbus.
(alarm 1) and R
an1
≥ R applies.
an1 an2
isoPV1685P
X
*
X
X
X
(alarm 2) (both
an2
X
X
X
X
X
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