Introduction Table of contents; Characteristics, operating conditions and intended use of the KEB Introduction COMBIVERT; Description of the controls The fundamental operation of the KEB COMBIVERT like password Operation input, parameter and set selection. Integration of the KEB COMBIVERT into existing networking.
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Control cabinet design calculation ..............6.1 - 3 6.1.2 Dimensioning power supply and regenerative units ........6.1 - 5 6.1.3 DC link capacitors of KEB frequency inverters ..........6.1 - 6 6.1.4 Dimensioning of decoupling diodes ..............6.1 - 6 6.1.5 Overload characteristics .................
Here the regenerative unit serves simultaneously as supply unit. The inverters must be designed for DC voltage supply in this case. The COMBIVERT R6-S power supply and regenerative units can be parallel connected for high power supply and/or regenerative supply.
After switching on the DC interconnection is supplied with voltage after correct initialisation phase. If the voltage in the DC interconnection exceeds an adjustable threshold due to generative operation, the COMBIVERT R6-S starts to regenerate the energy into the net by square-wave modulation. The COMBIVERT can synchronize to mains frequency by a sychronization module in front of the commutation throttle, or harmonic filter, so regenera- tion is done synchronously to the mains frequency.A sine-wave current is formed of it at the harmonic filter. The...
A load draw in the DC circuit may be done only when the message „ready“ is set. This can be guaranteed by a series connection of the relay R1 of the R6-S units with the control release of the connected converters. G1, G2 Regenerative unit COMBIVERT R6-S Control terminal strip Relais 1 / NO contact...
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Password structure 2.2 Password structure The KEB COMBIVERT is equipped with an extensive password protection. With the individual passwords it is possible: - to change the operating mode - to set a write protection - to activate the service mode...
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Network components 2.3 Network components 2.3.1 Available hardware The KEB COMBIVERT R6 can be easily integrated into different networks. For that purpose the inverter is fitted with an operator that is appropriate for the respective bus system. Following hardware components are available: –...
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The actual line frequency is determined during the initialization phase after switching on. Slowly changes of the line frequency during the operation are recognized and displayed in ru.03. If the COMBIVERT R6-S is in „netof“, ru.03 displays the actual regenerative frequency.
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The peak value memory can be cleared by pressing the UP, DOWN or ENTER key or via bus by writing any value you like to the address of ru.14. Switching off COMBIVERT R6-S also clears the memory.
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The peak value memory can be cleared by pressing the UP, or DOWN key or via bus by writing any value you like to the address of ru.20. Switching off COMBIVERT R6-S also clears the memory.
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Active parameter set 021Ah The KEB COMBIVERT can have access to 8 parameter sets (0-7). Through programming the inverter can change parameter sets autonomously and can thus start different modes of operation. This parameter displays the actual parameter set. Independent of it another parameter set can be edited by bus (also see chapter 3.7).
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Res. Default ru.81 Actual power 0251h -3200,0 3200,0 ru.81 displays the actual power of the COMBIVERT R6-S. Motor power is displayed with positive values, generatoric power is displayed with negative values. Parameter Addr. PG E Min. value Max. value Res.
3.3.1 Short description analog output The KEB COMBIVERT has one programmable analog output (ANOUT1). The variable which shall be output at the outputs X2A.21 can be selected with An.31. ANOUT 3 and ANOUT 4 (An.41 / 47) can be output as switching condition 42 or 43 with the digital outputs as PWM signal.
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3.4 Digital in- and outputs 3.4.1 Short description digital inputs The KEB COMBIVERT R6 has 5 external digital inputs and 5 internal inputs (ST, I1…I3). All inputs can be as- signed to one or several functions. Beside the terminal strip parameter di.00 determines whether the external inputs are controlled in PNP or NPN circuit.
If R6 units of different size are parallel connected, it is recommended, to define the larger unit as ma- ster. With changing of the adjustment of Pn.19 the parameterizing of cS.00, cS.01 and cS.04 for the KEB standard commutation choke or the KEB standard harmonic filter is preset. When using KEB products no further pa- rameter setting is necessary.
Parameter sets 3.7 Parameter sets KEB COMBIVERT includes eight parameter sets (0...7), i.e., all programmable parameters are eight times available in the inverter and can be assigned independently with different values. Since many parameters in the parameter sets have the same values, it would be complicated to adjust each parameter individually in each set.
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Adjusts the offset in the range of ±32767 (default 0). The parameter is set-programmable. ud.21 Control display norm ud.21 adjusts the calculation mode, decimal places as well as the displayed unity in KEB COMBIVIS. The pa- rameter is bit-coded and set-programmable. The parameter can be adjusted in the range of 0...1791.
Start-up Start-up The following chapter is intended for everybody who has no experience with the KEB power supply and rege- nerative units. It shall allow a correct entering into this field. But because of the complex application possibilities we must restrict ourselves to explaining the start-up of standard applications. Preparatory measures 4.1.1 After unpacking the goods After unpacking the goods and checking them for complete delivery following measures are to be carried out: Visual control for transport damage ...
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This is permissible in compliance with the standard, Insulation since all inverters are given a high voltage test in the end control at KEB in accordance with Measurement EN 50178. When using components without isolated inputs / outputs, it is necessary that equipotential bonding exists between the components to be connected (e.g.
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(Feedback) With applications requiring the COMBIVERT R6 to be switched on and off cyclically, maintain Cyclic Acti- an off-time of at least 5 min. If you require shorter cycle times please contact KEB. vation And Deactivation If personnel protection of the system is required, the COMBIVERT R6-S must be protected according to EN 61800-5-1: •...
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Start-up 4.2 Start-up After all preparatory measures have been carried out and checked the KEB COMBIVERT can be switched All control releases ST (X2A.12) must be deactivated when switching on the first time, since the COMBIVERT R6-S is not custom-specific parameterized. The following descriptions suppose that the COMBIVERT is on the password level "application mode" (ud.01 = application mode).
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4.2.2 R6-S operation only as regenerative unit Generally also for operating mode regeneration all relevant parameters of the regenerative unit are preset when using a R6-S unit and KEB commutation choke or harmonic filter based on default values, power unit code and the operating mode Pn.19 (CP.33). With the interconnection of the R6 for the operation only as regenerative unit, in regenerative operation not only the regenerative current flows back into the mains but also circulating currents from the inverter via R6 into the mains.
5.1.2 Error messages and their causes At KEB COMBIVERT error messages are always represented with an „E.“ and the appropriate error in the display. Error messages cause the immediate deactivation of the modulation. Restart possible only after reset or autoreset.
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Control cabinet design calculation ..................6.1 - 3 6.1.2 Design of power supply and regenerative units ..............6.1 - 5 6.1.3 DC link capacitors of KEB frequency inverters ..............6.1 - 6 6.1.4 Dimensioning of decoupling diodes ..................6.1 - 6 6.1.5 Overload characteristics ......................
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