ISOMETER iso685-d-p. Device features

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1 ISOMETER iso6- -P Insulation monitoring device with integrated locating current injector for IT AC systems with galvanically connected rectifiers or converters and for IT DC systems iso6-x-p_d D_XXEN/.

ISOMETER iso6- -P Insulation monitoring device with integrated locating current injector for IT AC systems with galvanically connected rectifiers or converters and for IT DC systems Device features

2 ISOMETER iso6- -P Insulation monitoring device with integrated locating current injector for IT AC systems with galvanically connected rectifiers or converters and for IT DC systems Device features ISOMETER iso6-d-p Application AC, DC or AC/DC main circuits AC/DC main circuits with directly connected DC components, such as rectifiers, converters, variable-speed drives UPS systems, battery systems Heaters with phase control Systems including switch-mode power supplies IT systems with high leakage capacitances Installations with insulation fault location Certifications iso6- -P ISOMETER for IT AC systems with galvanically connected rectifiers or inverters and for IT DC systems (IT = unearthed systems) Automatic adaptation to the existing system leakage capacitance Combination of AMP Plus and other profile-specific measurement methods Two separately adjustable response value ranges of kω MΩ High-resolution graphical LC display Connection monitoring (monitoring of the measuring lines) Automatic device self test Graphical representation of the insulation resistance over time (isograph) History memory with real-time clock (buffer for three days) for storing alarm messages with date and time Current or voltage output () ma, μa, V, V (galvanically separated), which is analogous to the measured insulation value of the system Freely programmable digital inputs and outputs Remote setting of certain parameters via the Internet (web server/option; TRAXX gateway) Worldwide remote diagnosis via the Internet (made available by Bender Service only) RS-/BS (Bender sensor bus) for communication with other Bender devices ISOnet: Internal separation of the ISOMETER from the IT system to be monitored (e.g. if several IT systems are interconnected) B, Modbus TCP and web server Locating current injection for selective insulation fault location Indication of the insulation faults selectively located by the EDS system Parameter setting of EDS systems Customer-specific texts for each measuring channel EDSx Insulation fault location in AC, AC and DC IT systems Up to measuring current transformers of the W, WR, WS measuring current transformer series can be connected Response sensitivity insulation fault location: EDS ma; EDS. ma Response sensitivity residual current measurement: EDS ma A; EDS ma A Communication of the components via BS bus (RS-) or BB bus Product description The ISOMETER is an insulation monitoring device for IT systems in accordance with IEC 6- and IEC 6-. It is universally applicable in AC, (N)AC, AC/DC and DC systems. AC systems may include extensive DC-supplied loads (such as rectifiers, inverters, variablespeed drives). In combination with the insulation fault locators of the EDSx series or the appropriate measuring current transformers, an insulation fault location system can be set up with the iso6- -P. iso6-x-p_d D_XXEN/.

3 ISOMETER iso6- -P Insulation monitoring function The insulation monitoring device continuously monitors the entire insulation resistance of an IT system during operation and triggers an alarm when the value falls below a preset response value. To obtain a measurement the device has to be connected between the IT system (unearthed system) and the protective earth conductor (). A measuring current in the μa range is superimposed onto the system which is recorded and evaluated by a microprocessor-controlled measuring circuit. The measuring time is dependent on the selected measurement profiles, the system leakage capacitance, the insulation resistance and possible system-related disturbances. The response values and other parameters are set using a commissioning wizard as well as via different setup menus using the device buttons and a high-resolution graphical LC display. The selected settings are stored in a permanent fail-safe memory. Different languages can be selected for the setup menus as well as the messages indicated on the display. The device utilises a clock for storing fault messages and events in a history memory with time and date stamp. The settings can be password protected to prevent unauthorised changes. To ensure proper functioning of connection monitoring, the device requires the setting of the system type AC, AC or DC and the required use of the appropriate terminals L/+, L, L/-. The insulation monitoring device iso6 x P is able to measure the insulation resistance reliably and precisely in all common IT systems (unearthed systems). Due to various applications, system types, operating conditions, application of variable-speed drives, high system leakage capacitances etc., the measurement technique must be able to meet varying requirements in order to ensure an optimised response time and relative uncertainty. Therefore different measuring profiles can be selected with which the device can optimally adjusted. If the preset response value falls below the value of Alarm and/or Alarm, the associated alarm relays switch, the LEDs or light and the measured value is shown on the LC display (in case of insulation faults in DC systems, a trend graph for the faulty conductor L+/L- is displayed). If the fault memory is activated, the fault message will be stored. Pressing the button resets the insulation fault message, provided that the current insulation resistance displayed at the time of resetting is at least % above the actual response value. As additional Information, the quality of the measuring signal and the time required to update the measured value are shown on the display. A poor signal quality (- bars) may be an indication that the wrong measurement profile has been selected. The ISOMETER has an internal system isolating switch, which makes it possible to operate several ISOMETER s in coupled IT systems. For this purpose, the ISOMETER s are connected via an Ethernet bus. The integrated ISOnet function ensures that only one ISOMETER is actively measuring at a time, while the other devices are completely isolated from the system and waiting in standby mode for measuring permission. The ISOMETER is able to synchronise itself with other ISOMETER s. This makes it possible to monitor capacitive coupled IT systems without interfering with each other. Insulation fault location An additional function of the ISOMETER in combination with the EDS is the selective insulation fault location. Therefore, the ISOMETER generates a periodic locating current after the values has fallen below the set response value R an (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 of the EDS and the measuring current transformer connected to it. The locating current flows from the locating current injector via the live lines to the insulation fault position taking the shortest way. From there, it flows through the insulation fault and the conductor back to the ISOMETER. This locating current pulse is detected by the measuring current transformer on the insulation fault path and signalled by the connected EDS. For the duration of the insulation fault location, the function of the insulation monitoring device is deactivated. If during the insulation fault location the locating current falls below the value measurable by the EDS, the insulation fault location is ended by the ISOMETER. Interfaces Communication protocol Modbus TCP B for Bender device communication via Ethernet BS bus for communication of Bender devices (RS-) BB bus for communication of Bender devices (Bender-internal device bus) Integrated web server for reading out measured values and for parameter setting Device variants iso6-d-p The device variant ISOMETER iso6-d-p features a high-resolution graphic LC display and operating controls for direct operation of the device functions. It cannot be combined with an FP. iso6-s-p The device variant ISOMETER iso6-s-p features neither a display nor operating controls. It can only be used in combination with the FP and it is operated via this front panel. Option W The ISOMETER s with and without integrated display are available with option W for extreme climatic and mechanical conditions (ISOMETER iso6w-d-p and iso6w-s-p). iso6-x-p_d D_XXEN/.

4 ISOMETER iso6- -P System setup In general, an EDS system is constituted by an iso6- -P as well as one or more EDSx insulation fault locators with the appropriate measuring current transformers. The information is exchanged between the EDSx and the iso6- -P via a backbone bus or a -wire sensor bus in order to save time and costs. The insulation monitoring device iso6- -P and the insulation fault locators EDSx constitute a complete IT system monitoring unit. In a system like this, up to channels can be monitored. The insulation monitoring devices can be connected to various gateways via an Ethernet interface, whereby an almost infinite amount of channels distributed in different IT systems can be monitored. Measurement method The iso6- -P series uses the patented AMP Plus measurement method. This measurement method allows concise monitoring of modern power supply systems, also in case of extensive, directly connected DC components and high system leakage capacitances. Standards The ISOMETER has been developed in compliance with the following standards: DIN EN 6- (VDE -):- IEC 6-:- IEC 6-:/COR:6 DIN EN 6- Ber (VDE - Ber ):6- Operating elements PGH 6 < > EDS MENU > DATA ESC INFO > OK - The LED lights when the device is turned on. - PGH The LED PGH flashes during insulation fault location. It indicates that the locating current for the insulation fault location is generated. - The LED lights when there is either a device fault or a connection fault, or when the device is in maintenance mode. - The LED lights when the insulation resistance of the IT system falls below the set response value R an. - The LED lights when the insulation resistance of the IT system falls below the set response value R an. 6 - Display The device display shows information regarding the device and the measurements. - EDS Manually starts the insulation fault location, which runs continuously. Stops the insulation fault location immediately when it is pressed again. Navigates up in a list or increases a value. - MENU Opens the device menu ESC Cancels the current process or navigates one step back in the device menu. - Resets alarms. Navigates backwards (e.g. to the previous setting step) or selects a parameter. - Starts the device self test. Navigates forwards (e.g. to the next setting step) or selects a parameter. - DATA Indicates data and values. Navigates down in a list or reduces a value. - INFO Shows information. OK Confirms an action or a selection. iso6-x-p_d D_XXEN/.

5 ISOSCAN I L I n EDS 6 6 I L I n ISOSCAN I L I n EDS 6 6 I L I n ISOMETER iso6- -P Wiring diagram L L L L L N L/+ L/- KE E U S 6 A/+ A/- L/+ L L/- KE E L+ L- * * L/+ L/- KE E EDS > MENU ESC PGH < > IT system IT system DATA > INFO OK B Adr. B Adr. Adr. Adr. BS-Bus BS-Bus X ETH R Adr. Adr. - Connection to an AC system U n - Connection to a DC system U n - Linked with two IT systems which can be interconnected via a coupling switch. Information regarding the state of the coupling switch is not necessary. - Connection to a (N)AC system - Connection to the IT system to be monitored (L/+, L, L/-) 6 - Separate connection of KE, E to - (K) Alarm relay, available changeover contacts - (K) Alarm relay, available changeover contacts - Switchable resistor R for RS- bus termination - Ethernet interface - Digital interface * - For systems > 6 V and with overvoltage category III a fuse for the connection to the system to be monitored must be provided. Recommendation: A screw-in fuses. Provide line protection! According to DIN VDE -, a line protection shall be provided for the supply voltage. Note According to DIN VDE -, devices for protection against a short circuit can be omitted for the coupling of terminals L/+, L and L/- to the IT system 6 V to be monitored if the wiring is carried out in such a manner as to reduce the risk of a short-circuit to a minimum. (A short-circuit-proof and earth-fault-proof wiring is recommended). The connecting lines L/+, L, L/- to the system to be monitored must be carried out as spur lines. No load current may be conducted through the terminals. iso6-x-p_d D_XXEN/.

6 6, ISOMETER iso6- -P Dimension diagram iso6- -P Dimensions in mm Dimension diagram Panel cut-out FP Dimensions in mm max., +,/- 66+,/-,,,6 Connection to FP Digital interface X Digital interface Terminal Colour I I I A B Q + Q M+ X I Input I Input I Input A RS- A B RS- B + + V Q Output Q Output M+ Analogue output Ground X + V I I I A B + RS- Bus Q Q M+ A V RS- Bus Currentmeter Voltagemeter Deactiv. Device low active high active active adjustable passive adjustable 6 iso6-x-p_d D_XXEN/.

7 ISOSCAN EDSP ISOSCAN I L I n EDS 6 ISOSCAN I L I n EDS ISOSCAN 6 I L I n EDS 6 6 ISOMETER iso6- -P Connection example ISOMETER with insulation fault locators Un L L L N to the loads to the loads to the loads to the loads U S L/- A/+ A/- L/+ L A/+ A/- KE E BB bus ISOSCAN EDS I L I n ISOSCAN EDS I L I I nl PGH 6 I L I n 6 X X l l iso6-d-p EDS -S EDS -L BS bus System setup ISOMETER iso6-d-p BS EDS...-L EDS...-L 6 EDSP EDS...-L iso6-x-p_d D_XXEN/.

8 ISOMETER iso6- -P Technical data Insulation coordination according to IEC 666-/IEC 666- Definitions: Measuring circuit (IC) (L/+, L, L/-) Supply circuit (IC) A, A Output circuit (IC),, Output circuit (IC),, Control circuit (IC) (E, KE), (X, ETH, X, X) Rated voltage V Overvoltage category III Rated impulse voltage: IC/(IC-) kv IC/(IC-) kv IC/(IC-) kv IC/IC kv Rated insulation voltage: IC/(IC-) V IC/(IC-) V IC/(IC-) V IC/IC V Pollution degree for accessible parts on the outside of the device housing (U n < 6 V) Pollution degree for accessible parts on the outside of the device housing (U n >6 < V) Protective separation (reinforced insulation) between: IC/(IC-) Overvoltage category III, V IC/(IC-) Overvoltage category III, V IC/(IC-) Overvoltage categoryiii, V IC/IC Overvoltage category III, V Voltage test (routine test) according to IEC 6-: IC/(IC-) AC, kv IC/(IC-) AC, kv IC/IC AC, kv Supply voltage Supply via A/+, A/-: Supply voltage range U s AC/DC V Tolerance of U s - +% Maximum permissible input current of U s 6 ma Frequency range of U s DC, Hz ) Tolerance of the frequency range of U s - + % Power consumption, typically DC W Power consumption, typically /6 Hz W/ VA Power consumption, typically Hz W/ VA Supply via X: Supply voltage U s DC V Tolerance of U s DC - + % IT system being monitored Nominal system voltage range U n AC 6 V DC V AC/DC 6 V (for UL applications) Tolerance of U n AC/DC + % Frequency range of U n DC. 6 Hz Max. AC voltage U ~ in the frequency range f n =. Hz U ~ max = V/Hz² *(+ f n²) Response values Response value R an (alarm ) Response value R an (alarm ) Relative uncertainty (acc. to IEC 6-) Hysteresis Time response kω MΩ kω MΩ profile dependent, ± %, at least ± kω %, at least kω Response time t an at R F =. x R an (R an = kω) and C e = μf according to IEC 6- profile dependent, typ. s (see diagrams in manual) Response time DC alarm at Ce = μf profile dependent, typ. s (see diagram in manual) Start-up delay T start-up s Measuring circuit Measuring voltage U m profile dependent, ± V, ± V (see profile overview) Measuring current Im μa Internal resistance R i, Z i kω Internal resistance on decouppled systems (inactive by I/O, inactive by ISOnet or cut-off) typ. MΩ Permissible extraneous DC voltage U fg V Permissible system leakage capacitance C e profile dependent, μf Measuring circuit for insulation fault location (EDS): Locating current I L Measuring ranges /././/// ma Measuring range f n. 6 Hz Tolerance measurement of f n ± % ±. Hz Voltage range measurement of f n AC 6 V Measuring range U n AC 6 V DC V Voltage range measurement of U n AC/DC > V Tolerance measurement of U n ± % ± V Measuring range C e μf Tolerance measurement of C e ± % ± μf Frequency range measurement of C e DC, 6 Hz Min. insulation resistance measurement of C e depending on the profile and coupling mode, typ. > kω Display Indication graphic display x pixels, x mm ) Display range measured value. kω MΩ Operating uncertainty (according to IEC 6-) ± %, at least ± kω LEDs (operation LED) PGH In-/Outputs (X-Interface) green yellow yellow yellow yellow Cable length X (unshielded cable) m Cable length X (shielded cable, shield connected to earth () on one end, recommended: J-Y(St)Y min. x,) m Total max. supply output current via X.+/X.GND for each output max. A Total max. supply output current via A/A on X max. ma Total max. supply output current via A/A on X between 6, V and V I LmaxX = ma + ma/v * U s n * PBB/V ) (negative values are not allowed for ILmaxX) Digital Inputs (I, I, I) Number Operating mode, adjustable active high, active low Functions off, test, reset, deactivate device, start initial measurement, insulation fault location Voltage Low DC - V, High DC V Tolerance Voltage ± % Digital Outputs (Q, Q) NNumber Operating mode, adjustable active, passive Functions off, Ins. alarm, Ins. alarm, connection fault, DC- alarm ), DC+ alarm ), symmetrical alarm, device fault, common alarm, measurement complete, device inactive, DC offset alarm, common alarm EDS Voltage passive DC V, active DC /. V Analogue Output (M+) Number Operating mode linear, midscale point kω/ kω Functions insulation value, DC offset Current ma (< 6 Ω), ma (< 6 Ω), μa (< kω) Voltage V (> kω), V (> kω) Tolerance related to the current/voltage final value ± % iso6-x-p_d D_XXEN/.

9 ISOMETER iso6- -P Interfaces Field bus: Interface/protocol web server/modbus TCP/B Data rate / Mbit/s, autodetect Max. amount Modbus requests < /s Cable length m Connection RJ IP address DHCP/manual.6.. Network mask... B address system-- Function communication interface ISOnet: Number ISOnet devices Max. nominal system voltage range ISOnet AC 6 V DC V Sensor bus: Interface/protocol RS-/BS Data rate.6 kbaud/s Cable length m Cable: twisted pair, one end of shield connected to recommended: J-Y(St)Y min. x. Connection terminals X.A, X.B Terminating resistor at the beginning and at the end of the transmission path Ω, can be connected internally Device address, BS bus Switching elements Number of switching elements changeover contacts Operating mode N/C operation/n/o operation Contact -- off, Ins. alarm, Ins. alarm, connection fault, DC- alarm ), DC+ alarm ), symmetrical alarm, device fault, common alarm, measurement complete, device inactive, DC offset alarm, common alarm EDS Contact -- off, Ins. alarm, Ins. alarm, connection fault, DC- alarm ), DC+ alarm ), symmetrical alarm, device fault, common alarm, measurement complete, device inactive, DC offset alarm, common alarm EDS Electrical endurance under rated operating conditions, number of cycles. Contact data acc. to IEC 6--: Utilisation category Rated operational voltage Rated operational current Rated insulation voltage m NN Rated insulation voltage m NN Minimum contact rating Environment/EMC AC-/AC-/DC-/DC-/DC- V/ V/ V/ V/ V A/ A/ A/. A/. A V 6 V ma at AC/DC V EMC IEC 66-- ) Ambient temperatures: Operating temperature - + C Transport - + C Long-term storage - + C Classification of climatic conditions acc. to IEC 6: Stationary use (IEC 6--) K (except condensation and formation of ice) Transport (IEC 6--) K Long-term storage (IEC 6--) K Classification of mechanical conditions acc. to IEC 6: Stationary use (IEC 6--) Transport (IEC 6--) Long-term storage (IEC 6--) Area of application M M M m NN Connection Connection type pluggable screw-type terminal or push-wire terminal Screw-type terminals: Nominal current A Tightening torque..6 Nm ( lb-in) Conductor sizes AWG - Stripping length mm rigid/flexible.. mm² flexible with ferrules, with/without plastic sleeve.. mm² Multiple conductor, rigid. mm² Multiple conductor, flexible.. mm² Multiple conductor, flexible with ferrule without plastic sleeve. mm² Multiple conductor, flexible with TWIN ferrule with plastic sleeve.. mm² Push-wire terminals: Nominal current A Conductor sizes AWG - Stripping length mm rigid/flexible.. mm² flexible with ferrules, with/without plastic sleeve.. mm² Multiple conductor, flexible with TWIN ferrule with plastic sleeve.. mm² Push-wire terminals X: Nominal current A Conductor sizes AWG -6 Stripping length mm rigid/flexible.. mm² flexible with ferrule without plastic sleeve.. mm² flexible with TWIN ferrule with plastic sleeve.. mm² Other Operating mode continuous operation Mounting ( ) display oriented, cooling slots must be ventilated vertically 6) Degree of protection internal components IP Degree of protection terminals IP DIN rail mounting acc. to IEC 6 Screw fixing x M with mounting clip Enclosure material polycarbonate Flammability class V- ANSI code 6 Dimensions (W x H x D) x x mm Weight < g Option W data different from the standard version Rated operational current of switching elements max. A (for UL applications) Ambient temperatures: Operating temperature - + C - +6 C (for UL applications) Transport - + C Long-term storage - + C Classification of climatic conditions acc. to IEC 6: Stationary use (IEC 6--) K (condensation and formation of ice possible) Classification of mechanical conditions acc. to IEC 6: Stationary use (IEC 6--) ) At a frequency > Hz, the connection of X ande Remote must be insulated. Only permanently installed devices which at least have overvoltage category CAT (V) may be connected. ) Indication limited outside the temperature range - + C. ) U s [Volt] = ISOMETER supply voltage ) For U n V only. ) This is a class A product. This product may cause radio interference in residential areas. In this case, the user may be required to take corrective actions. 6) Recommendation: Devices mounted at (display oriented, cooling slots must be ventilated vertically) For devices mounted at an angle of, the max. working temperature is reduced by C. For devices mounted at an angle of, the max. working temperature is reduced by C. M iso6-x-p_d D_XXEN/.

10 Ordering information Nominal system voltage range U n Supply voltage U S Display Option W Type Art. No. AC DC AC DC iso6-d-p B6 6 V; 6 Hz V V; Hz V - + C, K, M iso6w-d-p B6W iso6-s-p + FP B6 - + C, K, M iso6w-s-p + FPW B6W Insulation fault locators Accessories Description Insulation fault locators ) Absolute values Description A set of screw-type terminals ) A set of push-wire terminals Enclosure accessories (terminal cover, mounting clips) ) Transparent cover x (IP6) for FP ) BB bus 6TE connector ) ) included in the scope of delivery Bender GmbH & Co. KG P.O. Box 6 Gruenberg Germany Londorfer Straße 6 Gruenberg Germany Tel.: Fax: info@bender.de Art. No. B6 B6 B6 B6 B ) If the transparent front cover x (IP6) is used, the cutout in the control cabinet must be increased in height from 66 mm to 6 mm (+./- mm). ) Necessary for the connection of the ISOMETER s with an EDS -S Supply voltage U S Response value Type Art. No. AC/DC V ma. ma EDS-S- EDSW-S- EDS-L- EDSW-L- EDS-S- EDSW-S- EDS-L- EDSW-L- EDS-LAB- EDSW-LAB- Suitable system components Description Type Art. no. Device version without display Display for front panel mounting Suitable measuring instruments on request! iso6-s-p iso6w-s-p FP FPW B BW B BW B BW B BW B BW B6 B6W B6 B6W BENDER Group iso6-x-p_d D_XXEN /. / pdf / Bender GmbH & Co. KG, Germany Subject to change! The specified standards take into account the edition valid until. unless otherwise indicated.

ISOMETER iso685- -B. Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT systems) Preliminary data sheet

ISOMETER iso685- -B. Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT systems) Preliminary data sheet Insulation monitoring device for unearthed AC, AC/DC and DC systems (IT systems) Preliminary data sheet iso685-x-b_d00177_04_d_xxen/04.2018 Insulation monitoring device for unearthed AC, AC/DC and DC systems