Danfoss VLT AutomationDrive FC 301 Design Manual

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Danfoss VLT AutomationDrive FC 301 Design Manual Manual pdf 194 page image

12.13.5 Status Word according toPROFIdrive Profile (STW)The status word is used to notify a master (for example, aPC) about the status of a follower.Bit Bit=0 Bit=100 Control not ready Control ready01 Drive not ready Drive ready02 Coasting Enable03 No error Trip04 OFF 2 ON 205 OFF 3 ON 306 Start possible Start not possible07 No warning Warning08 Speed ≠ reference Speed=reference09 Local operation Bus control10 Out of frequency limit Frequency limit ok11 No operation In operation12 Drive OK Stopped, autostart13 Voltage OK Voltage exceeded14 Torque OK Torque exceeded15 Timer OK Timer exceededTable 12.26 Status Word BitsExplanation of the status bitsBit 00, Control not ready/readyWhen bit 00="0", bit 00, 01 or 02 of the control word is "0"(OFF 1, OFF 2 or OFF 3) - or the frequency converter isswitched off (trip).When bit 00="1", the frequency converter control is ready,but there is not necessarily power supply to the unitpresent (in the event of external 24 V supply of the controlsystem).Bit 01, VLT not ready/readySame significance as bit 00, however, there is a supply ofthe power unit. The frequency converter is ready when itreceives the necessary start signals.Bit 02, Coasting/EnableWhen bit 02="0", bit 00, 01 or 02 of the control word is "0"(OFF 1, OFF 2 or OFF 3 or coasting) - or the frequencyconverter is switched off (trip).When bit 02="1", bit 00, 01 or 02 of the control word is"1"; the frequency converter has not tripped.Bit 03, No error/TripWhen bit 03="0", no error condition of the frequencyconverter exists.When bit 03="1", the frequency converter has tripped andrequires a reset signal before it can start.Bit 04, ON 2/OFF 2When bit 01 of the control word is "0", then bit 04="0".When bit 01 of the control word is "1", then bit 04="1".Bit 05, ON 3/OFF 3When bit 02 of the control word is "0", then bit 05="0".When bit 02 of the control word is "1", then bit 05="1".Bit 06, Start possible/Start not possibleIf PROFIdrive has been selected in 8-10 Control Word Profile,bit 06 is "1" after a switch-off acknowledgment, afteractivation of OFF2 or OFF3, and after switching on themains voltage. Start not possible is reset, with bit 00 of thecontrol word being set to "0" and bit 01, 02 and 10 beingset to "1".Bit 07, No warning/WarningBit 07=“0” means that there are no warnings.Bit 07=“1” means that a warning has occurred.Bit 08, Speed≠reference/Speed=referenceWhen bit 08="0", the current speed of the motor deviatesfrom the set speed reference value. This may occur, forexample, when the speed is being changed during start/stop through ramp up/down.When bit 08="1", the current speed of the motorcorresponds to the set speed reference value.Bit 09, Local operation/Bus controlBit 09="0" indicates that the frequency converter has beenstopped with [Stop] on the LCP, or that [Linked to hand]or [Local] has been selected in 3-13 Reference Site.When bit 09="1", the frequency converter can becontrolled through the serial interface.Bit 10, Out of frequency limit/Frequency limit OKWhen bit 10="0", the output frequency is outside the limitsset in 4-52 Warning Speed Low and 4-53 Warning SpeedHigh.When bit 10="1", the output frequency is within theindicated limits.Bit 11, No operation/OperationWhen bit 11="0", the motor does not turn.When bit 11="1", the frequency converter has a startsignal, or the output frequency is higher than 0 Hz.Bit 12, Drive OK/Stopped, autostartWhen bit 12="0", there is no temporary overloading of theinverter.When bit 12="1", the inverter has stopped due tooverloading. However, the frequency converter has notswitched off (trip) and starts again after the overloadinghas ended.Bit 13, Voltage OK/Voltage exceededWhen bit 13="0", the voltage limits of the frequencyconverter are not exceeded.When bit 13="1", the direct voltage in the intermediatecircuit of the frequency converter is too low or too high.Bit 14, Torque OK/Torque exceededWhen bit 14="0", the motor torque is below the limitselected in 4-16 Torque Limit Motor Mode and 4-17 TorqueLimit Generator Mode.RS-485 Installation and Set... VLT® AutomationDrive FC 301/FC 302 Design Guide, 0.25-75 kW192 MG33BF02 - Rev. 2013-12-201212