ISOMETER® iso685(W)-x-P Insulation Monitoring Device with integrated locating current injector for IT AC systems with galvanically connected rectifiers and inverters and for IT DC systems Image similar

The ISOMETER® monitors the insulation resistance of unearthed AC/DC main circuits (IT systems). DC components existing in AC/DC systems do not influence the operating characteristics. A separate supply voltage allows de-energised systems to be monitored too. The maximum permissible system leakage capacitance is provided in the technical data. Insulation Monitoring Device with integrated locating current injector for IT AC systems with galvanically connected rectifiers and inverters and for IT DC systems Device features Features iso685-x-P • ISOMETER® for IT AC systems with galvanically connected...

Product description The ISOMETER® is an insulation monitoring device for IT systems in accordance with IEC 61557-8. It is universally applicable in AC, 3(N)AC, AC/DC and DC systems. AC systems may include extensive DC-supplied loads (such as rectifiers, inverters, variable-speed drives). Special ISOMETER® characteristics The ISOMETER® iso685-D… belongs to the iso685 device family and features an integrated display. The ISOMETER® iso685-S… is the sensor variant of the iso685 device family. The only difference between this variant and the ISOMETER® iso685-D… is that it does not have a display....

Insulation fault location An additional function of the ISOMETER® in combination with the EDS is the selective insulation fault location. For this purpose, the ISOMETER® generates a periodic locating current after the measured value has fallen below the set response value Ran2 (ALARM 2 LED). Thereby, the system conductors are alternately connected to earth via a defined resistance. The resulting locating current depends on the size of the existing insulation fault and the system voltage. It is limited by the ISOMETER® depending on the settings. The insulation fault is selectively located by means...

Graphic LC display and operating controls. Cannot be combined with the FP200(W). No display and no operating controls. Can only be operated in combination with the FP200(W).

A ji3l A riTTTTTI 111ITTTT11111 rnTTI 111 miTI 111ITTTT1 Connection to the power supply voltage Us Connector for the IT system to be monitored Connector for the IT system to be monitored Connector for the IT system to be monitored Connection to PE Multifunctional I/O interface Ethernet interface Switchable terminating resistor for termination of the RS-485 interface Connector for alarm relay 1 Connector for alarm relay 2 isoxx685(W)-x-P... only: optional expansion interface for Bender products J The connection between the iso685 device and an FP200(W) can be interrupted and restored at any time...

Connection requirements Connection to a supply voltage J Check proper connection! Prior to commissioning the installation, check that the device has been properly connected and check the device functions. Perform a functional test using an earth fault via a suitable resistance. Prevent measurement errors! If a monitored AC system contains galvanically coupled DC circuits, the following applies: An insulation fault can only be detected with its correct value when the rectifier valves carry a minimum current of > 10 mA. Use 60/75 °C copper lines only! For UL and CSA applications, the supply voltage...

The BB bus is an interface that enables Bender devices to communicate with each other. The BB bus can be used with an ISOMETER® and one or more EDS44x-S. For this purpose, the BB bus is installed at the rear side of both devices and afterwards, both devices are mounted next to each other on the DIN rail. For further information, refer to the quickstart guide enclosed to the BB bus PCBs. J If the ISOMETER® is combined with an EDS44x-S, the BB bus 6TE plug connection must be ordered additionally. Sensor variant devices that are additionally connected to the ISOMETER® do not require additional supply...

Technical data Measuring circuit (IC1) Supply circuit (IC2) Output circuit 1 (IC3) Output circuit 2 (IC4) Control circuit (IC5) IT system being monitored Nominal system voltage range Un AC 0.690 V Nominal system voltage range Un for UL applications AC/DC 0.600 V Max. alternating voltage U~ (for f < 4 Hz) Umax = 50 V x (1 + f,2) Rated impulse voltage Response values Response value Rani (ALARM 1) 1 kO . 10 MO Response value Ran2 (ALARM 2) 1 kO . 10 MO Relative uncertainty (acc. to IEC 61557-8) profile-dependent, ±15 %, min. ±1 kO Rated insulation voltage Pollution degree outside (Un < 690 V) 3...

SERVICE yellow EDSsync number of devices 2___10 ISOloop number of devices 2___10 Cable length X1 (unshielded cable) < 10 m Cable length X1 (shielded cable, shield connected to PE < 100 m on one side) recommended: J-Y(St)Y min. 2x0.8 Max output current for supply via X1+/X1GND per output 1 A Max output current for supply via A1/A2 in total on X1 200 mA Max output current for supply via A1/A2 in total on X1 I_maxxi = 10 mA + 7 mA / V x Us' Interface / protocol Data rate Mode 1 Cable: twisted pairs, shield connected to PE on one side recommended: J-Y(St)Y min. 2x0.8 Cable length (depending on the...

continuous operation display-oriented * IP40 IP20 IEC 60715 3 x M4 with mounting clip polycarbonate V-0 Screw-type terminals Nominal current Tightening torque Conductor sizes Wire cross-section flexible with ferrule with/without plastic sleeve 0.25___2.5 mm2 Multiple conductor, rigid 0.2___1 mm2 Multiple conductor, flexible 0.2 1.5 mm2 Multiple conductor, flexible with ferrule without plastic sleeve 0.25___1 mm2 Multiple conductor, flexible with TWIN ferrule with plastic sleeve 0.5___1.5 mm2 Push-wire terminals Wire cross-section flexible with ferrule with/without plastic sleeve 0.25 2.5 mm2...

Dimensions Standards and certifications 110 The ISOMETER® has been developed in compliance with the following standards: Ordering detailsDevice Type Option W: Increased shock and vibration resistance 3K23; 3M12; Bezeichnung -40.. .+70 °C Suitable system components Absolute values