Insulation monitoring device for it ac and dc systems with integrated test current generator for insulation fault location (52 pages)
Summary of Contents for Bender isoMED427 Series
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isoMED427x-(PT) Insulation monitoring device for medical applications isoMED427x-(PT)_D00440_00_M_XXDE Manual EN...
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Service and support for Bender products First level support Technical support Carl-Benz-Strasse 8 • 35305 Grünberg • Germany Telephone: +49 6401 807-760 0700BenderHelp * Fax: +49 6401 807-629 E-mail: support@bender-service.de Available from 7.00 a.m. to 8.00 p.m. on 365 days of the year (CET/UTC+1) * Landline German Telekom: Mon-Fri 09:00 a.m.
Signs and symbols............................5 Training courses and seminars........................ 6 Delivery conditions............................6 Inspection, transport and storage......................6 Warranty and liability..........................6 Disposal of Bender devices........................7 Safety................................. 7 Device-speci c safety information..............8 Intended use..............................8 Functional description..................9 Alarm and operating messages for each BMS channel............... 10 Mounting and connection................
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Table of contents Password protection..........................21 Deactivating the CT monitoring function..................22 6.10 Resetting the device to factory settings................... 22 6.11 Querying device information.........................23 Technical data isoMED427(P)-(PT)..............24 Factory settings isoMED427x-(PT)....................... 29 Device overview............................30 Recommended device combinations....................31 Standards and certi cations........................31 isoMED427x-(PT)_D00440_00_M_XXDE...
This manual is intended for quali ed personnel working in electrical engineering and electronics! Part of the device documentation in addition to this manual is the enclosed supplement " Safety instructions for Bender products". Read the operating manual before mounting, connecting and commissioning the device.
Regular face-to-face or online seminars for customers and other interested parties: www.bender.de -> Fachwissen -> Seminare. Delivery conditions The conditions of sale and delivery set out by Bender GmbH & Co. KG apply. These can be obtained in printed or electronic format. The following applies to software products: "Softwareklausel zur Überlassung von Standard- Software als Teil von Lieferungen,...
Disposal of Bender devices Abide by the national regulations and laws governing the disposal of this device. For more information on the disposal of Bender devices, refer to www.bender.de -> Service & Support. Safety If the device is used outside the Federal Republic of Germany, the applicable local standards and regulations must be complied with.
Device-speci c safety information Device-speci c safety information Risk of property damage due to unprofessional installation! CAUTION If more than one insulation monitoring device is connected to a conductively connected system, the system may be damaged. If several devices are connected, the device does not work and does not signal insulation faults.
In the event of a malfunction, relay K1 switches and all three LEDs ash. The display shows an error code. E.01 Protective conductor connection faulty, no low-resistance connection between E and KE. E.03 Measuring current transformer interruption E.04 Measuring current transformer short circuit E.05…E.xx Internal device error, contact Bender service. isoMED427x-(PT)_D00440_00_M_XXDE...
Functional description Password protection If the password protection has been enabled, settings can only be made after entering the correct password. Factory settings FAC After restoring the factory settings, all settings previously changed are reset to the state upon delivery. Monitoring of the IT system transformer For temperature monitoring, the isoMED427P-PT device evaluates the resistance value of the temperature sensor.
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isoMED427x-(PT) Operating messages BMS channel Description BMS channel Description Currently measured insulation resistance R F Currently measured load current in % Current transformer temperature in °C (isoMED427P-PT only) isoMED427x-(PT)_D00440_00_M_XXDE...
Mounting and connection Mounting and connection Risk of fatal injury due to electric shock! DANGER Touching live parts of the system carries the risk of an electric shock. • Before installing and connecting the device, make sure that the installation has been de-energised.
isoMED427x-(PT) Wiring diagram Risk of electrocution due to electric shock! DANGER If terminals L1, L2 of the device are connected to an energised IT system, terminals E and KE must not be disconnected from the protective conductor (PE). Connect the device according to the wiring diagram. The lines to KE and E must be routed separately! The BMS bus must be terminated at both ends! STW2...
Mounting and connection Commissioning Prior to commissioning, check proper connection of the ISOMETER®. Perform a functional test using a genuine earth fault, e.g. via a suitable resistance. isoMED427x-(PT)_D00440_00_M_XXDE...
isoMED427x-(PT) Operating elements Device front Element Function Power on LED Alarm LED 1 is lit: Below response value R Alarm LED 2 is lit: Response value % I or/and °C exceeded "T": Start a self test (2 s) : Menu item up / increase value : Menu item down / decrease value Start menu mode (2 s) Enter button:...
Operating elements Display elements isoMED427x-(PT) After activating the test function (T), all available display elements are shown for 2 seconds. < | - | > Identi er for response values 7-segment display Display of the values Upper row R : Insulation resistance I : Fault current .
isoMED427x-(PT) Alarm indication and EDS activity Display examples: > > > isoMED427(P) C ° > isoMED427P-PT If di erent alarms occur simultaneously, the display changes at 3-second intervals. If several errors occur, the respective error codes are displayed alternately. isoMED427x-(PT)_D00440_00_M_XXDE...
Parameter settings Parameter settings An example is given below on how to change the alarm response value R (< R). Proceed as follows: Press and hold the MENU/Enter button for 2 s. The ashing short symbol < R appears on the display.
Parameter settings Setting the response value R (<R) Use this setting to de ne the insulation value below which an alarm is signalled. > > > > Setting the response value for load current monitoring > > > > > Setting the response value overtemperature ( >°C) (isoMED427P-PT) C °...
isoMED427x-(PT) Activating automatic insulation fault location > Password protection This menu can be used to enable the password protection, change the password or to disable the password protection. The password can only be changed if the password protection has been enabled before. a) Enabling the password protection >...
Parameter settings c) Disabling the password protection > Deactivating the CT monitoring function > 6.10 Resetting the device to factory settings > isoMED427x-(PT)_D00440_00_M_XXDE...
isoMED427x-(PT) 6.11 Querying device information This function is used to query the software (1.xx) version. After activating this function, the data will be displayed as scrolling text. After completing the routine, individual data sections can be selected using the arrow-up/arrow-down buttons. >...
Technical data isoMED427(P)-(PT) Technical data isoMED427(P)-(PT) Insulation coordination acc. to IEC 60664-1/-3 De nitions Measuring circuit (IC1) L1, L2 Control circuit (IC2) E, KE, Z, Z/k, l, T1, T2, A, B Output circuit (IC3) 11, 12, 14 Rated voltage 250 V Overvoltage category Operating altitude <...
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isoMED427x-(PT) Monitored IT system Nominal system voltage U n 70…264 V Nominal frequency f n 47…63 Hz Insulation monitoring acc. to IEC 61557-8: 2007-01 Response value R an 50…500 k Relative uncertainty ±10 % Hysteresis 25 % Response time t an at R F = 0.5 x R an and C e = 0.5 F ≤...
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Technical data isoMED427(P)-(PT) Response time, overload (50 % to 120 %) < 5 s Response time, CT monitoring at restart, test or every 1 h Temperature monitoring isoMED427x Sensor PTC resistors acc. to DIN 44081 (max. 6 in series) Response value Release value 1.6 k Relative uncertainty...
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isoMED427x-(PT) Interface Interface/protocol RS-485/BMS Baud rate 9.6 kBit/s Cable length ≤ 1 200 m Cable: twisted pair, one end of shield connected to PE recommended J-Y(St)Y min. n x 2 x 0.8 120 Ω (0.25 W), internal, switchable Terminating resistor Device address, BMS bus 2…90 Switching elements...
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Technical data isoMED427(P)-(PT) Classi cation of mechanical conditions acc. to IEC 60721 Stationary use (IEC 60721-3-3) 3M11 Transport (IEC 60721-3-2) Long-term storage (IEC 60721-3-1) 1M12 Connection Connection type Push-wire terminals Nominal current ≤ 10 A Stripping length 10 mm Opening force 50 N Test opening, diameter 2.1 mm...
isoMED427x-(PT) Other Operating mode Continuous operation Position of normal use Degree of protection, built-in components (DIN EN 60529) IP30 Degree of protection, built-in components (DIN EN 60529) IP20 Enclosure material Polycarbonate Flammability class UL94V-0 DIN rail mounting IEC 60715 Screw mounting 2 x M4 Software versions D643 V1.0x (isoMED427-2)
Technical data isoMED427(P)-(PT) Device overview Model Supply voltage U s Article number isoMED427-2 AC 70...264 V; 47…63 Hz B72075306 B92075306 isoMED427P-2 B72075301 B92075301 isoMED427P-PT B72075307 B92075307 Push-wire terminal version Screw-type terminal version Only this device has a Lloyds Register approval Accessories Description Article number...
isoMED427x-(PT) Recommended device combinations Device combination Insulation Insulation Alarm indicator and monitoring device fault locator test combination isoMED427P(-PT) = S EDS461-L = S MK2430, CP9xx, CP305 = M EDS461-D = S MK2007 = S isoMED427P(-PT) = S EDS151 = S MK2430, CP9xx, CP305 = M MK2007 = S S = Slave, M = Master...
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Nachdruck und Vervielfältigung Reprinting and duplicating nur mit Genehmigung des Herausgebers. only with permission of the publisher. Bender GmbH & Co. KG Bender GmbH & Co. KG Postfach 1161 • 35301 Grünberg • Deutschland PO Box 1161 • 35301 Grünberg • Germany Londorfer Str.