Danfoss VT2800 Series Design Manual

Contents

VLT ® 2800 SeriesProgrammingBit 05, Not used:Bit 05 is not used in the status word.Bit 06, Trip lock:Bit 06 = ’0’ means that the frequency converteris not trip locked.Bit 06 = ’1’ means that the frequency converteris trip locked and it cannot be reset before themains supply has been removed. The trip can bereset either with 24 V external control back up orafter the power is connected again.Bit 07, No warning/warning:Bit 07 = ’0’ means that there are no warnings.Bit 07 = ’1’ means that a warning has occurred.Bit 08, Speed≠ ref/speed = ref.:Bit 08 = ’0’ means that the motor is running, but thatthe present speed is different from the preset speedreference. It might, for example, be the case while thespeed is being ramped up/down during start/stop.Bit 08 = ’1’ means that the motor’s present speedis the same as the preset speed reference.Bit 09, Local operation/serial communication control:Bit 09 = ’0’ means that [STOP/RESET] is activated onthe control unit, or that Local control in parameter002 Local/remote operation is selected. It isnot possible to control the frequency convertervia serial communication.Bit 09 = ’1’ means that it is possible to control thefrequency converter via serial communication.Bit 10, Outside frequency range:Bit 10 = ’0’, if the output frequency has reachedthe value in parameter 201 Output frequencylow limit or parameter 202 Output frequencyhigh limit. Bit 10 = "1" means that the outputfrequency is within the defined limits.Bit 11, Running/not running:Bit 11 = ’0’ means that the motor is not running.Bit 11 = ’1’ means that the frequency converterhas a start signal or that the output frequencyis greater than 0 Hz.Bit 13, Voltage warning high/low:Bit 13 = ’0’ means that there are no voltage warnings.Bit 13 = ’1’ means that the DC voltage in the frequencyconverter’s intermediate circuit is too low or too high.Bit 14, Current limit:Bit 14 = ’0’ means that the output current is less thanthe value in parameter 221 Current Limit I LIM.Bit 14 = ’1’ means that the output current isgreater than the value in parameter 221 CurrentLimitILIM and that the frequency converter willtrip after a set period of time.Bit 15, Thermal warning:Bit 15 = ’0’ means that there is no thermal warning.Bit 15 = ’1’ means that the temperature limit has beenexceeded in either the motor, frequency converter orfrom a thermistor that is connected to a digital input.■ Control word according to Fieldbus ProfileTo select Profidrive in the control word, parameter 512Telegram Profile must be set to Profidrive [0].The control word is used to send commandsfrom a master (e.g. a PC) to a slave (frequencyconverter). Master⇒Slave.Bit Bit = 0 Bit =100 OFF 1 ON 101 OFF 2 ON 202 OFF 3 ON 303 Coasting stop04 Quick stop05 Freeze outp. freq.06 Ramp stop Start07 Reset08 Bus jog 109 Bus jog 210 Data not valid Data valid11 Slow down12 Catch-up13 Select Setup (lsb)14 Select Setup (msb)15 ReversingBit 00-01-02, OFF1-2-3/ON1-2-3:Bit 00-01-02 = ’0’ causes ramp stop, which uses theramp time in parameters 207/208 or 209/210.If Relay 123 is selected in parameter 323 Relayoutput, the output relay will be activated whenthe output frequency is 0 Hz.Bit 00-01-02 = ’1’ means that the frequencyconverter can start the motor if the otherstarting conditions are fulfilled.Bit 03, Coasting stop:See description under Control word accordingto FC protocol.MG.28.E9.02 - VLT is a registered Danfoss trademark 115