Hardware and Engineering DF6-340-... Frequency ... - Moeller.com.tr

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01/02 AWB8230-1413GB Start/stopChange over current limit (OLR)The frequency inverter monitors the motor current duringacceleration <strong>and</strong>/or static operation. When the inverter reachesthe overload limit, the output frequency is reduced to limit theload. This prevents a shutdown due to overcurrent caused by anexcessive moment of inertia or sudden changes in the load torque.You can define two different overload behaviours:• PNU b021 to b023 or• PNU b024 to b026.By default, the values of PNU b021 to b023 are used. To usePNU b024 to b026, activate the digital input configured as OLR(change over current limit) (a fig. 78 <strong>and</strong> table 17).Under PNU b021/b024, you can define the overload limit.Figure 78:OLRDigital input 3 configured as OLR(change over current limit)3P24Table 17:Changing over the current limitOLR PNU ActiveOLR3OLR3P24P24b021b022b023jjjb024 –b025 –b026 –b021 –b022 –b023 –b024b025b026jjjX Under PNU b021 to b023, define the overload behaviour foryour first instance.X Under PNU b024 to b026, define the overload behaviour foryour second instance.X Program one of the digital inputs 1 to 5 as OLR by entering thevalue 39 under the corresponding PNU (C001 to C005).PNU Name Adjustable in RUN mode Value Function WENormalExtendedb021/b024b022/b025b023/b026Current limitcharacteristicTrippingcurrent– j 00 Motor current limit not active 0101 Motor current limitation active on acceleration <strong>and</strong>constant speed02 Motor current limitation active at constant speed03 Motor current limit active in all operating states– j 0.5 to 2.0 x I e Setting range of the tripping current as a multiple of thefrequency inverter rated current, i.e. the range is given inamperes (A).Time constant – j 0.1 to 30.0 s When the set current limit is reached, the frequency isreduced to 0 Hz in the time set here.Caution: If possible, do not enter a value less than 0.3here!1.2 x I e1.0087
Programming the ControlSignal Terminals01/02 AWB8230-1413GBHeavy mains starting (CS)The CS function is used for starting drives with an extremely highstarting torque directly from the mains. This means that a smaller,less expensive frequency inverter can be used, since the <strong>DF6</strong> hasto deliver only the motor full load current, not the high startingcurrent (for example 50 A starting current, 15 A motor full loadcurrent).To use this function, the system must be wired as shown infigure 79.L1L2L3PEQ1135IIIQ11135IIIF11K2MK1MK11L1L2L3L1PEL1 L2 L3Z2Z1PER0 T0L1 L2 L3PEP24 FW2FWDCS<strong>DF6</strong>-<strong>340</strong>-...DV6-<strong>340</strong>-...U V W PE CM1 THK3MM1M 3 heFigure 79: <strong>DF6</strong> series frequency inverters with K2M bypass contactor, K3M motor contactor <strong>and</strong> K1M mains contactorF11: 6 A miniature circuit-breaker, for example FAZ-B688
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Contents01/02 AWB8230-1413GB- Contr
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About the DF6 <str
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About the DF6 <str
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About the DF6 <str
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Engineering01/02 A
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Messages01/02 AWB8230-1413GBDisplay
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Troubleshooting01/02 AWB8230-1413GB
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Appendix01/02 AWB8230-1413GB<strong
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Appendix01/02 AWB8230-1413GBCables
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Appendix01/02 AWB8230-1413GBRFI fil
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Appendix01/02 AWB8230-1413GBPNU Fun
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Index01/02 AWB8230-1413GBFlow contr
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Hardware and Engineering DF6-340-... Frequency ... - Moeller.com.tr

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