Table of Contents
Advertisement
Measuring circuit for insulation monitoring
Measuring voltage U
(peak value)................................................................................................................................. ±50 V
m
Measuring current I
(at R
m
Internal DC resistance R
Impedance Z
at 50 Hz................................................................................................................................................... ≥ 70 kΩ
i
Permissible extraneous DC voltage U
Permissible system leakage capacitance C
Response values for insulation monitoring
Response value R
(alarm 1) ........................................................................................................... 200 Ω...1 MΩ (10 kΩ )*
an1
Response value R
(alarm 2) ............................................................................................................. 200 Ω...1 MΩ (1 kΩ )*
an2
Upper limit of the measuring range when set to C
Relative uncertainty (10 kΩ...1 MΩ) (acc. to IEC 61557-8) ......................................................................................... ±15 %
Relative uncertainty (0.2 kΩ...< 10 kΩ) ........................................................................................................ ±200 Ω ±15 %
Response time t
.................................................................................................................................................... see page 41
an
Hysteresis ............................................................................................................................................................... 25 %, +1 kΩ
isoPV1685P only:
Measuring circuit for insulation fault location (EDS)
Locating current I
DC ................................................................................................................................................... ≤ 50 mA
L
Test cycle/pause .................................................................................................................................................................. 2/4 s
Number of turns of test winding ............................................................................................................................................. 10
Displays, memory
LEDs for alarms and operating states ........................................................................................................ 2x green, 4 x yellow
μSD card (Spec. 2.0) for history memory and log files ............................................................................................ ≤ 32 GByte
Inputs
Digital inputs DigIn1/DigIn2:
High level ................................................................................................................................................................... 10...30 V
Low level ..................................................................................................................................................................... 0...0.5 V
Serial interfaces
BMS/Modbus:
Interface/protocol ........................................isoPV1685RTU: RS-485/BMS(Slave)/Modbus RTU (Slave); Protocol switchable
............................................................................................................................................... isoPV1685P: RS-485/BMS(Slave)
Connection............................................................................................................................................................. terminals A/B
..........................................................................................................................................................................Shield: terminal S
Cable length .................................................................................................................................................................≤ 1200 m
Shielded cable (shield to functional earth on one end)........................................... 2-core, ≥ 0.6 mm
Terminating resistor, can be connected (RS-485 Term.).................................................................................... 120 Ω (0.5 W)
Device address, BMS bus or Modbus adjustable (DIP switch)...............................................................isoPV1685RTU: 2...17
Devices address, BMS bus adjustable (DIP switch)....................................................................................isoPV1685P: 2...33
44
= 0 W )........................................................................................................................... ≤ 1.5 mA
F
................................................................................................................................................ ≥ 70 kΩ
i
.................................................................................................................. ≤ DC 1500 V
fg
............................................................................................ ≤ 2000 μF (500 μF)*
e
= 2000 μF ................................................................................ 50 kΩ
emax
2
isoPV1685xxx_D00007_08_M_XXEN/03.2023
Technical Data
, e.g. J-Y(St)Y 2 x 0.6
Advertisement
Table of Contents
Need help?
Do you have a question about the ISOMETER isoPV1685RTU and is the answer not in the manual?