Operating and installation manual 0.37 – 15 kW 400V
Contents
1. V Out SiProt FrqSet TrTime N Nom RunDly F fix3 C fix3 T fix3 R fix3 V Max SioTot FrqAct AC Fail l Nom DC Brk F fix4 C fix4 T fix4 R fix4 F Out SpdSet Temp Hi cos Q AinSet F fix5 C fixS T fix5 R fix5 F Max SpdAct PTC Temp Tuning AutoSt F fix6 C fix6 T fix6 R fix6 TrqSet OverLoad R stat EnergySave F fix7 C fix7 T fix7 R fix7 TrqAct Ain Fail R rot StMode Fr min Sp min Tq min Setmin RegSet DC Low L main Kp spd Fr max Sp max Tq max Setmax RegAct DC High Sigma Ti spd Max fr Actmin PT1000 GND Fail I magn Byp fr Actmax M Temp IMagnLow l limt Byp bw T min OpTime Cur Low AnyBus T max RnTime Cur High RegAmp Run Fail RegKp Bus Fail RegTi Min fr Max fr Unit AinAct Table 8 Parameter groups and parameters Only the parameter groups for the run mode selected are displayed i e either Freque Speed Torque or PI reg The table below shows all inverter parameters divided into parameter groups Typ 7 Init means parameters can only be changed via initialising in local mode Typ 7 Init Run means parameters can be changed in any mode Typ Read means parameters are read only NFO Drives AB 2007 Version 3 3 eng Only available together with I O card Go NEO o DRIVES Tuning Autoerng command m Motor stator resistance 5 5 Motor leak inductance 5 5 Control mode Speed Init Freque speed control with frequency estim2. FREQUENCY INVERTER N FO Sin us Operating and installation manual 0 37 15 kW 400V en DRIVES NFO D Box 35 SE 376 23 Sv ngsta Sweden Tel 46 0 454 370 29 Fax 46 0 454 32 24 14 Email nfo nfodrives se Inte NEO DRIVES Contents 1 ses Te aiT 4 2 Safety dS PECts I 4 3 Technical E svcd csc HM 5 4 Installation TTT 6 AA MEI PIC ER D 6 4 2 Connecting mains supply 4 3 Connecting MOTOR 2n etsda aii petto iaaiaee Aras esent teste donee vede bebo Re Reste EEES 4 4 Terminal CONNECUONS e 8 4 4 1 Power terminal use eese eeeeeeettn ten tenta tnnt tentata ttn tentata tinte stante toten totae tots 8 4 4 2 Signal terminals and their use enen 9 4 4 3 Connecting serial channel RS232 m sosssosesssseroosssorosssrrrsorssrrronsrerrrssrrrerrssrrrrnsrrrrrsssnrrrns nr rn nns 11 4 44 Connecting serial channel RS485 sss 11 4 5 Installation and ventilatiON sssssssssssssssssssasesavssssssesssssssssasessnsosssinsssnsessssnins ssssnssesssnssssnsseessssssnsnsisnser 11 5 Installation and programming eese tenente tenente tente tente tnten tento n tette ten tente tntentententnnenns 12 5 1 General Motes m 12 5 2 Keyboard and display esee tentent tentententetenttnte tenen tente tenent nns nns rn rr
3. 0 22 57 0 2200 H 0 1 1499 0 1 000 Table 9 8 00A I magn 8 00A 0 12 73 0 12 73 0 1767 H 0 0 6485 0 1 000 Table 9 10 50A I magn 10 50A 0 12 73 0 12 73 0 1617 H 0 0 6485 0 1 000 Table 9 13 30A I magn 13 30A 0 9 03 0 9 03 0 1121 H 0 0 4602 0 1 000 Table 9 17 70 A l magn 17 70A 0 9 03 0 9 03 0 0856 H 0 0 4602 0 1 000 Table 9 25 80A l magn 25 80A 0 6 78 0 6 78 0 0677 H 0 0 3455 0 1 000 Table 11 Default motor parameter values and permitted ranges 5 6 Setting control parameters 5 6 1 Control mode parameter Mode Table 9 28 50 A l magn 28 50A NFO Sinus can control induction motors in four different control modes frequency without estimation Freque rpm with speed estimation Speed torque Torque and process regulation PI Reg With the Mode parameter in the Freque position the frequency is controlled in accordance with the frequency setpoint entered The inverter does not compensate the frequency for load variations The torque available is governed by the parameter l limt which is normally set at 120 of the connected motor s current at nominal output For other settings see section 5 7 With the Mode parameter in the Speed position the motor speed is regulated in line with t
4. Speed from parameter C fix4 counter clockwise Table 13 Speed OpMode parameter settings 5 8 2 Fixed speed setpoints parameters C fix1 C fix7 There are seven fixed speed setpoint parameters F fixf to F fix7 which can be set within the range 0 9000 rpm The maximum is governed by the motor type however and is set at three times the motor s nominal frequency subject to a maximum of 150Hz giving 4500rpm for a 4 pole motor at a nominal frequency of 50Hz 5 8 3 Analog speed setpoint range parameters Sp min and Sp max Parameters Sp min and Sp max indicate the RPM range in which the inverter is to work when an analog input is designated as setpoint source The terminal and scaling to be used are indicated by the parameter AinSet see Table 7 Under Analog F and Analog R the range is set such that frequency Sp max applies at full run and Sp min at minimum run in the direction concerned If rotation at different directions is required e g at 10V stopping in the middle set Sp min to Sp max NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 28 NEO arte DRIVES 5 9 Torque regulation Torque mode Torque regulation means the motor s maximum stated torque is limited which is done by varying the motor s rotor current limit The torque required is stated as a percentage of the motor s nominal torque All torque setpoints can be in the range 1 200 but parameter l limt governs the
5. AutoStart ON and terminal 5 RUN goes from active to inactive or is active and goes inactive To switch to programming mode press PROG To switch from local mode to serial channel mode use command from serial channel NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 13 NEO ee DRIVES 5 3 2 Programming mode This mode is used to change and read off parameters from the inverter The inverter parameters are divided into parameter groups as shown in Table 8 To access parameter groups press PROG To scroll forwards or backwards between parameter groups use FWD and REV To access parameters within a group press ENTER To go back to parameter groups press PROG To exit programming mode press PROG again Pressing SHIFT PROG at a parameter exits programming mode immediately Pressing SHIFT PROG again takes you directly back to the last parameter To scroll forwards or backwards through parameters in a group use FWD and REV The first line of the display shows the current parameter s name and the second line its current value If terminal 5 RUN is active the inverter can be started by pressing SHIFT STOP or stopped by pressing STOP in which case the inverter will remain in programming mode An R Read only appears in the top right hand corner of the display if the parameter concerned is read only This may be because the parameter shows a status value or cannot be varied becau
6. Current torque as of nominal motor torque PT1000 Temperature PT1000 temp sensor 5 10 3 Loo o O Read M temp Estimated relative motor temp 5 11 2 Read RstDly Time from when fault disappears to restart 5 14 10 sec TrTime Time inverter must run perfectly not to stop 5 14 600 sec Temp Hi Cooling flange overheating 5 14 2 Fault in motor or motor wiring Table 9 Parameters available sorted by parameter group 5 5 Autotuning and motor parameters 0 3600 sec Init Run 0 3600 sec Init Run EI H E RN To run correctly motor parameters R stat R rot L main Sigma I magn and I limt must be set correctly As supplied the inverter parameters are set to run a standard motor as in section 5 1 If used with other motors these parameters must be modified to suit This can be done manually or via autotuning measuring motor parameters Before you can run autotuning you need to enter the nominal motor data parameters P nom U Nom f Nom N Nom l Nom and cos 0 These are usually shown on the motor plate and must be entered for the connection for which the motor is to be used Y or D The basic nominal data settings as supplied are shown in Table 10 Once you have entered these parameters you can run the Tuning command which has to be confirmed to run The motor parameters are then recorded and saved to the respective motor parameters This procedure takes about 1 minute depending on the mo
7. D LCD display 2 x 8 tecken gt HA S S Fig 6 Keyboard Table 5 Button functions The value of a given parameter can be increased or decreased by pressing f or UV When adjusting parameters these have set increments how much they change by each time the button is pressed To increase this increment press SHIFT and hold NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 12 NEO ee DRIVES down Both fl and U and SHIFT f and SHIFT U are repetitive Pressing any of these key combinations and holding them down increases the repetition frequency successively When any parameter is changed a appears on the right of the first line of the display This means the parameter has not yet been saved in the inverter s memory To save the value press ENTER then the disappears The indicator lights at the bottom of the keyboard have meanings as follows POWER Indicates the inverter is live RUN Lights up when the motor is running FAIL Inverter faulty 5 3 Operating modes When starting and initiating the inverter the software version number will appear for a few seconds The inverter then goes to external mode and waits for the start command the display reads Ext Stby To give the start command activate terminal 5 RUN A The inverter starts automatically when power is switched on if terminal 5 RUN is active and parameter AutoStart ON supplied ins
8. must be Y connected and a motor with nominal voltage of 690V Y 400 V D must be D connected Current EMC standards can be met without shielded motor cable if the inverter is correctly installed otherwise There is no limit on motor cable length as the inverter always supplies a sinus voltage to the motor but voltage drop in cables must be allowed for 4 4 Terminal connections leel Fig 4 Power terminal appearance three phase supply 4 4 1 Power terminal use H SSCS Braking resistance Connection for external braking resistance between B and DC link voltage Nominal voltage At three phase feed 400 V 565 V DC Mains supply 3 x 380 440V PE Safety earth Power supply safety earth PE Safety earth Safety earth connection motor Motor connection Motor connection Table 1 Use of power terminals If installing a number of inverters with one or more running in regenerative mode the inverter DC links terminals and can be connected to one another so these inverters supply energy to the others Thanks to component tolerances in the inverter the link voltage may vary slightly from one model to another so an equalising resistance and ultra fast fuse must be fitted to each line Contact NFO Drives AB for correct dimensions NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 8 NEO DRIVES 4 4 2 Signal terminals and their use 12V unregulated voltage to di
9. parameters Fr min and Fr max 27 5 8 RPM regulation with speed estimation Speed mode sse 27 5 8 1 Setpoint source for speed parameter OpMode sse 28 NFO Drives AB 2007 Version 3 3 eng Only available together with I O card NEO DRIVES 5 8 2 Fixed speed setpoints parameters C fixf C fIX7 sees 28 5 8 3 Analog speed setpoint range parameters Sp min and Sp max sss 28 5 9 Torque regulation Torque mode smisvsessisseumsisbisssssstesiossisssvesssnssssssissessssaissberssnssssdetsssssbennesnisanskinsnet 29 5 9 1 Torque regulation setpoint source parameter OpMode sss 29 5 9 Fixed torque setpoints parameters T fix1 T fix7 5 9 3 Analog torque setpoint range parameters Tq min and Tq max sss 30 5 10 Process regulation PI Reg mode sisters sid 30 5 10 1 Setpoint source process regulation essere 31 5 10 2 Fixed process regulator setpoints parameters R fix R fiX7 su sssssssssosssrsessnnrsnnnnnnn 32 5 10 3 Analog regulator setpoint from temperature sensor sss 32 5 10 4 Regulator setting parameters RegAmp RegKp and RegTi sss 32 5 11 Motor safety fmCtionis iisics ssccccsssssisascessadsorcebacastsscussosadsdebscsseascsssssisasensstcsosissaatsebestlaacnicbseostadustadbscoacases 32 STI PT Coit putes TTT 33 RIPE idu 33 5 12 Output signa
10. run down uncontrolled this could destroy the inverter through the motor generating a voltage surge 5 6 8 Speed regulator parameters Kp spd and Ti spd The inverter is equipped with a Pl type speed or frequency regulator to ensure the rotor is at the desired rpm mode Speed or frequency mode Freque mode Torque and mode PI reg at all times under all loads up to maximum torque This can be NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 24 NEO ee DRIVES set via parameters Kp spd and Ti spd if required The P amplifier Kp spd handles fast control inputs rapid changes in speed while the amplifier Ti spd is responsible for fine tuning the final speed As supplied Kp spd is set to 0 10 and Ti spd to 1 00 sec which is fine under most operating conditions When operating loads with high inertial torque or motors with multiple poles both Kp spd and Ti spd may need to be adjusted The points below may be helpful when tuning First set the regulator so it works more or less purely as a P regulator This is done by setting the maximum time Ti spd for the integrator amplification Start motor at low P amplification Kp spd Increase the P amplification carefully until its control becomes unstable and or shows a tendency to over react to control signals indicated by an overrun to a speed change Then reduce P amplification until the control is stable again AC maxi
11. setpoint is governed by the parameter OpMode the possible values of which are as shown in Table 12 NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 26 NEO a DRIVES OpMode Frequency setpoint source Terminal Any of alternatives below selected from terminal as in table 6 Analog F Analog input clockwise Analog R Analog input counter clockwise Fix 1 F Frequency from parameter F fix1 clockwise Fix 2 F Frequency from parameter F fix2 clockwise Fix 3 F Frequency from parameter F fix3 clockwise Fix 4 F Frequency from parameter F fix4 clockwise Fix 5 F Frequency from parameter F fix5 clockwise Fix 6 F Frequency from parameter F fix6 clockwise Fix 7 F Frequency from parameter F fix7 clockwise Fix 1 R Frequency from parameter F fix1 counter clockwise Fix 2 R Frequency from parameter F fix2 counter clockwise Fix 3 R Frequency from parameter F fix3 counter clockwise Fix 4 R Frequency from parameter F fix4 counter clockwise Fix 5 R Frequency from parameter F fix5 counter clockwise Fix 6 R Frequency from parameter F fix6 counter clockwise Fix 7 R Frequency from parameter F fix7 counter clockwise AnyBus Field bus control additional input required See separate manual Table 12 Freque OpMode parameter settings 5 7 2 Fixed frequency setpoints parameters F fix1 F fix7 There are seven parameters for fixed frequency setpoints F fix1 to F fix7 which can be set i
12. with I O card 30 NEO arte DRIVES Parameter setting parameter Unit NoUnit Pa kPa bar rpm l s Uh Parameter AinAct settings Analog value ppm 0 10V Voltage 0 10V 76 2 10V Voltage 2 10V V 10V Voltage 10V Table 15 Process regulator units Table 16 Actual value input setting options 5 10 1 Setpoint source process regulation The regulator setpoint source is governed by the parameter OpMode the possible values of which are shown in Table 17 Process regulation cannot be used running the motor in different directions The actual value inputs are selected and scaled as shown in Table 7 All parameter units are governed by parameter Unit Parameters Setmin and Setmax govern the maximum and minimum input signal from the setpoint input corresponding to the unit selected OpMode Source of regulator setpoint Terminal JAny of the alternatives below selected from terminal as in table 6 Table 17 PI Reg OpMode parameter settings NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 31 NEO e DRIVES 5 10 2 Fixed process regulator setpoints parameters R fix1 R fix7 There are seven parameters available for fixed regulator setpoints R fix1 to R fix7 These can be set in the range 2000 0 2000 0 Units are selected via the parameter Unit 5 10 3 Analog regulator setpoint from temperature sensor The inverter can take its setpo
13. 3 9 kQ min 1 4W between terminal 25 and I O earth as in Fig 2 Configuration is carried out under fault PTCTemp in parameter group Error see section 5 14 5 11 2 Power monitor The power monitor uses the motor parameters as described in section 5 5 so it is essential that these are entered correctly if the function is to work reliably Always perform the autotuning This function is controlled by parameters Overld S Temp and F Cool Overld can be set to Disable power monitor disabled Alarm generates alarm or Fail releases motor These parameters can be found in the parameter group Error and fault Overload The power monitor works on the principle that a motor can work at an output loss equivalent to that at nominal load voltage current and RPM as plated at an ambient temperature of 40 C indefinitely If the motor is working at a higher output loss lower rpm or higher ambient temperature the power monitor will cut in after a time depending on the ratio of those variables to the motor s nominal data The current power monitor status at any time can be read off as a percentage from the parameter M temp This value rises and falls with a time constant of 60 minutes towards a final value that corresponds to the current load A final value of 100 0 corresponds to nominal load and the power monitor trips when this value is passed The ambient motor temperature is set via the parameter S Temp which can be set within the ra
14. 51 and 53 see Fig 5 If there is no signal terminals 50 and 51 are closed The relay is separated galvanically from other signals and can be loaded up to 2 A 50 V DC 50 W To set use parameter ReMode possible values as follows e Disable display off e Running Motor running e Run Fwd Motor running shaft rotating clockwise FrqAct gt 0 e Run Rev Motor running shaft rotating counter clockwise FrqAct lt 0 e Run Setp Rotor frequency has reached its setpoint FrgAct FrqSet e Run Freq Rotor frequency greater than parameter ReFreq FrqAct gt ReFreq 5 12 2 Analog voltage output The voltage output is configured using parameter V Out is located at terminal 60 and is related to any of the ground terminals see Fig 1 To scale the output use parameter V Max Maximum output voltage is 10 V maximum output current 3 mA Possible values for parameter V Out e Disable display off e Freque displays inverter s electrical frequency Output shows voltage V Max at nominal motor frequency f Nom whichever way the motor is turning and OV at OHz e Speed displays the motor speed estimated actual value same as parameter SpdAct Output shows voltage V Max at nominal motor rpm N Nom whichever way the motor is turning and OV at Orpm e Torque displays motor torque Output shows voltage V Max at nominal motor torque whichever way it is turning 5 12 3 Frequency output The frequency output is c
15. RegKp in parameter group Pl reg e Set regulator integration time using parameter RegTi in parameter group Pl reg NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 41 NEO arte DRIVES 8 Your own parameter settings Name Description e Pnom TS me ea T Gem ena T O Cinemre SS me pows S em nas SS a beras T Cmn porna SV sme poorne O Dime prne T m ania 7 Mode fowom Mn Oe ea an T eg le T DC Brk DC braking Ae ome Des lenneg T G HH ana ek T eea Ieg ee T Tem er Cr sae NN C se C peewee OOOO anla T ara O Fa Reime i SS T einer Fe Reim E Fas Reime Fe Reim E eaa Deme me m E NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 42 NEO Go DRIVES Cm eem Pema amat Eme ama r0 j w EE eer Reime adR B gt gt gt H xu4 x C fix6 Fixed speed 6 ama ar lne T s peee E aeae Ted Reime HM X TH H Te eed T ras pees re Rees Ta Reimer H Tq Min Min torque gies Meee ieee a E OpMode Setpoint source regulator pps Se Lie mu quu Oo O p M p p ee a e p L L NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 43 NEO Go DRIVES Ce pe RS n Pin raa T me la ra T Cw pemes H ake e Co T a ei NAM NN Von larer HN NN BELGII S Analog freq output H RseDly Rest
16. and not in combination with control via the serial channel Remember the motor will also start automatically after an involuntary power failure 5 6 6 Energy save function parameter EnergySave The energy save function optimizes the energy consumption of the motor by lowering the magnetizing current at low loads It is mainly used for applications at low loads i e fans that sometimes run at very low speeds The magnetizing current is at maximum lowered to 25 of I magn The time for the function to adjust optimal magnetizing current is ca 5s at a change in setpoint or load Thanks to this the function should only be used in application requiring low dynamics With the EnergySave parameter set to ON the function is enabled and to OFF disabled as supplied 5 6 7 Stop mode parameter StMode The NFO Sinus has two different stop modes Brake and Release With the StMode parameter set to Brake as supplied when a stop command is issued the inverter will brake the motor to a stop with the retardation ramp set before releasing it If the mains fails the inverter will brake the motor to a stop as quickly as possible without the motor generating a voltage surge With the StMode parameter set to Release when a stop command is issued the inverter will release the motor immediately letting it run down uncontrolled The motor will also be released immediately in the event of a mains failure A Avoid allowing a load with high inertial torque
17. art time cf ae epe eml H re Tree T KH ereer T ameer T Rem H snp leae T Ain Fail Analog error LG TH ocne peene Co SSCS ele r T ees larer T G SSCS Rn a ete rb SS RT S G HS NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 44
18. ation Speed rpm control with speed estimation Torque torque control Pl reg process control mode E Acceleration time from 0 to f Nom Hz 5 6 2 0 2 500 0 s Retardation time from f Nom to 0 Hz 5 6 2 0 2 500 0 s RunDly Start delay 5 6 3 0 3600 s Init Run Delay in seconds from when power is applied until motor can ie start DC Brk Motor DC braking before startup 5 6 4 0 3600 s Init Run man D Type of setpoint at analog input terminals 3 10 or 24 0 10V i AutoSt Autostart mode 5 6 5 ON OFF Init Run OFF Inverter awaiting flank on RUN after power applied ON ON motor starts as soon as power is applied if RUN is active A WARNING if there is a run signal to the inverter it will start when power is applied EnergySave Energy save function 5 6 6 OFF ON NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 17 OFF Function is disabled ON Inverter optimizing energy consumption of the motor NEO Go DRIVES StMode Stop mode 6 Brake Brake Init Run Brake motor brakes as Retard Release Release motor runs down AnyBus Field bus protocol See separate manual Init Run OpMode Setpoint source torque 5 9 1 Table 14 Fixed torque 1 5 9 2 10 0 1 200 Fixed torque 2 5 9 2 20 0 1 200 Fixed torque 3 5 9 2 30 0 1 200 Fixed torque 4 5 9 2 40 0 1 200 Fixed torque 5 592 50 0 1 200 uer Maximum frequency under torque
19. brakes as in ramp parameter Retard 7 3 Running from terminal fixed setpoint The procedure below is designed for running motor starting and stopping from terminal 8 Hz counter clockwise e Connect terminal 15 FIX1 terminal 14 FWD to terminal 1 12V e Set parameter C fix1 in parameter group Freque to 8 Hz e Check that parameter OpMode in parameter group Freque is set to Terminal e Start motor by connecting terminal 5 RUN to terminal 1 12V e Stop motor by disconnecting terminal 5 and terminal 1 NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 40 NEO ee DRIVES 7 4 Running with analog setpoint The steps below apply when running motor with analog setpoint 0 10V max 40Hz e Connect analog control signal between terminal 3 VOLTAGE and terminal 23 COMMON e Check that parameter AinSet in parameter group Control is set to 0 10V e Set parameter OpMode in parameter group Freque to Analog F e Set parameter Fr max in parameter group Freque to 40Hz e Start motor by connecting terminal 5 RUN to terminal 1 COMMON e Stop motor by disconnecting terminals 5 and 1 7 5 Torque control with analog setpoint The procedure below is designed for torque control of a motor with analog setpoint 0 10V e Connect analog control signal between terminal 3 VOLTAGE and terminal 23 COMMON e Check that parameter AinSet in parameter group Control is set to 0 10V e Set parameter Mode i
20. cables with the cable shields being connected to the safety earth at one end The reason for recommending shielding is that signal cables laid alongside power cables are prone to interference so the inverter can be fed incorrect setpoints When running with a potentiometer this should have a tolerance of better than 5 so the setpoint is not outside the permitted range The inverter can be configured to give an alarm if the setpoint is out of limits using the Ain Fail fault A An external braking resistance must be fitted if the retardation time is less than 5 sec see section 6 If in any doubt as to installation always contact NFO Drives AB 4 2 Connecting mains supply Three phase feed inverters are connected to a three phase mains network at a nominal voltage of 380 440 V 50 60 Hz between terminals L1 L2 L3 and PE PE ground see Fig 1 Recommended slow blowing fuses for three phase supply 0 37 kW 0 75 kW 1 5kW 2 2 kW 3 kW 4 kW 5 5 kW 7 5 kW 11 kW 15 kw 6A 6A 6A 10A 10A 16A 16A 25A 35A 35A With the mains supply connected correctly and the motor running the inverter draws less than 2 mA earth current in the PE core NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 7 NEO arte DRIVES 4 3 Connecting motor Connect motor cables between terminals U V W and PE The nominal motor voltage for three phase fed inverters is 400V so a motor with a nominal voltage of 400 V 230 V D
21. conch 59 sorz 00 1500 Hz miuus NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 18 NEO Go DRIVES Sem Vale ar min input signal Fom sepone mpu 405103 00 20000 2000q IntuRun aa Vale ac min input signal from acta valve input 10 00 20000 2000 ane Reko Proportional componere process em 5104 000 000 100 Tan T 348 Pa Tablas tn ReMode Function relay function Running Disable Init Run Disable Function disabled Running Running Motor running Run Fwd Run Fwd Motor running forwards Run Rev Run Rev Motor running reverse Run Setp Run Setp Motor frequency has reached setpoint Run Freq Run Freq Motor frequency gt ReFreq Switch frequency in ReMode Run Freq 5 12 1 50 0 Hz 0 150 0 Hz V Out Analog power output Disable Disable Init Run Disable Function disabled Freque Freque Current electrical frequency Speed Speed Current rotor speed Torque Torque Current torque Scale factor for analog power output 5 12 2 10 00V 0 10 00 V F Out Analog frequency output Disable Disable Init Run Disable Function disabled Freque Freque Current electrical frequency Speed Speed Current rotor speed Torque Torque Current torque Serial channel information See separate manual NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 19 NEO DRIVES Go Current torque setpoint as of nominal motor torque
22. e a2 Please note that the inverter must not be run for more than one minute with the front panel removed as this affects the airflow through it 4 1 Typical installation G D Digital inputs x R o B max 24V e 5 ac 9 2 E lt 2 2 NN wo 5 T gt E Loy ese t5 o o a lt 5 Oo O 6 ED y x vn 22556 6 gt e 3 o 5 L1 L2 L3 PE 55293989 gt 5 3 a DBD e TTB o vo D S c o9 9 o z a 2 2 E o B Z ZE Z o 5 Q a 2 3 00 I o 0 2 E c E o c 000 0 c Oo o Q gt 2 E XxX X X c gt Oo c c Oi iu o o o E D o x E o 2 e 9 o o 2 o O a gt O a lt o m 2 a e e L L L La U U X S4 e L1 L2 L3 PE 5 14 6 15 26 1 9 20 25 21 22 3 23 10 2 1213 4 11 th a S ZS E ES TUN I O ground Q L RS 232 Modular contact RXD TXD RTS CTS GND UV W PE B 7 8 4 3 5 8 17 28 27 16 7 L M Fault relay Run Braking alarm output indicator S resistance optional Fig 1 Typical configuration process regulator 24 RS 485 18 29 SIO SIO A Warning If there is a run signal to the inverter terminal 5 the inverter will start up when power is applied Terminals 21 22 23 and 24 I O ground can be connected galvanically to PE via jumper S4 not supplied with installation These terminals may vary in terms of potential by up to 100 V from PE if S4 is not fitted The RS 232 contact is always connected galvanically to PE The n
23. e together with I O card 39 NEO e DRIVES 7 Getting started In the sections below we look at a number of operating cases This is designed to help get a newly installed inverter started Parameters not mentioned are settings as supplied Steps to be followed at all times e Install motor and wiring as in section 4 3 e Connect power supply as in section 4 2 e Runautotuning as in section 5 5 to ensure motor parameters are correct 7 1 Running in local mode The procedure below is designed to check that everything is connected correctly and the motor is turning in the right direction e Press STOP to go to local mode e Set frequency desired in display window e Press FWD to run clockwise or REV to run counter clockwise When the button is released the motor will stop e Press SHIFT FWD and motor will keep running even once the button is released e Stop motor by pressing STOP motor runs down or press FWD or REV briefly motor brakes as in ramp parameter Retard 7 2 Running at fixed frequency The procedure below is designed to test motor running at 25 Hz clockwise Motor will run until STOP is pressed e Press STOP to go to local mode e Connect terminal 5 RUN and terminal 1 12V e Set parameter C fix2 in parameter group Freque to 25 Hz e Set parameter OpMode in parameter group Freque to C fix2 F e Start motor using SHIFT STOP e Stop motor using STOP motor runs down or disconnect terminal 5 motor
24. egative power input terminal 2 is connected to I O ground terminals 21 24 via jumper S3 supplied fitted Remove this jumper and the common mode voltage at the power input terminals 2 and 10 may vary by up to 24V from I O ground This is designed to be used when a number of current controlled units are connected in series The inverter can be configured for negative logic at the digital inputs terminals 5 6 14 15 and 26 by moving jumper S1 see Fig 3 The inputs are then made active by connecting them to the I O ground terminals 21 24 see Fig 2 NFO Drives AB 2007 Version 3 3 eng Only available together with I O card NEO S DRIVES Q x E RS 232 RS 485 e E o TF Neg logic Pos logic 8 5 2 2 7 look 22 em 5 5 D Zz a e e502 5 3 2 E35 G Z 0 G Q 3 2 e y 4 8 o 9c E 2 5 5 9 5 E 9 ir o og G 5 5 BLZ PL2 223 214 PL5 PL6 PL7 PL8 RS 232 Fo 2 o g 2 BZ Z Z o 35 0D o U bU E c 0 0 0 e Q SERRE E 2 ual 0 pug p 0 1 12 p A3 pura p 15 RAS p e218 e219 e 9 o o S4 a Oo E E PL21 PL22 PL23 PL24 FL25 PL26 PL27 PL28 FL29 PL30 Bc e NH 5 14 6 15 26 21222324 25 20 1 O ground Fig 2 Connection via negative logic Fig 3 Jumper locations shown as jumper S1 moved supplied All signal lines should be installed with shielded
25. ergy back to the inverter This means the voltage in the DC link terminals and will rise To prevent the voltage rising too high and damaging the inverter it is fitted with a power surge regulator which does not allow retardation that generates more energy than the motor can use itself If the inverter does not retard the motor fast enough taking longer than what parameter Retard is set to the regulator is active If faster retardation is required an external brake resistance must be fitted to convert the regenerated energy to heat This resistance is fitted between terminals and B see Table 1 and Fig 1 This resistance must be capable of absorbing the braking energy generated so it must be tailored to the operating conditions concerned The recommended resistance for an inverter with a 3 x 400V power supply is 100 A If the retardation time is less than 5 sec an external braking resistance must be fitted Avoid setting the retardation ramp parameter Retard any shorter than necessary If the resistance is too low the brake chopper circuit may be damaged The table below shows the minimum resistance permitted for different sizes of inverter Table 19 Minimum permitted resistance for brake resistance If the brake chopper is active this appears as an alarm on the display If you are in any doubt about how to install equipment always contact NFO Drives AB NFO Drives AB 2007 Version 3 3 eng Only availabl
26. ers as full Full but they are the same as with simplified Basic if the stator resistance is precisely the same This is because with full autotuning all motor parameters are measured while here they are calculated based on R stat and the nominal motor data The aim should be to use full autotuning wherever possible The autotuning function sets l limt to 120 of the motor s nominal rotor current or the maximum the inverter can produce NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 21 NEO DRIVES Go Table 10 and Table 11 show the default value settings for nominal data and motor parameters for each inverter model Please note that these parameters are for an equivalent star connected motor and cannot be measured from the motor terminal 0 37 kW 0 75 kW 1 50 kW 2 20 kW 3 00 kW 4 00 kW 5 50 kW 7 50 kW 11 kW 15 kW Table 10 Default nominal data values 0 126 79 0 126 79 0 9840 H 0 3 2000 0 1 000 I magn Range I limt Range Table 9 1 32A I magn 1 60A 0 65 12 0 65 12 0 6205 H 0 3 2000 0 1 000 Table 9 240A I magn 2 50A 0 31 24 0 31 24 0 4163 H 0 1 5913 0 1 000 Table 9 420A I magn 4 20A 0 22 57 0 22 57 0 3096 H 0 1 1499 0 1 000 Table 9 5 80A I magn 5 80A 0 22 57
27. gital inputs max 50mA COMMON COMMON COMMON COMMON Run signal Direction of rotation see Table 6 S Ty 12 PLUS POT Potentiometer input 10 kO positive limit see also Table 7 Potentiometer input 10 kO central takeoff Potentiometer input 10 kO negative limit 17 ALARM B Fault relay potential free contact max 1 A 50 V DC NAM C If fault in inverter terminals 17 and 28 close MOTOR RUN A MOTOR RUN B mun indication potential free contact max 1 A 50 V DC MOTOR RUN C Terminals 7 and 16 are closed when motor is running SIO RS 485 eres neu D keer 30 LCDHNSSSSS Table 2 Signal terminals and their use Digital inputs terminals 5 6 15 25 and 26 under positive logic Maximum input voltage 30V Switch level approx 4V NFO Drives AB 2007 Version 3 3 eng Only available together with I O card Go NEO arte DRIVES Digital inputs terminals 5 6 15 25 and 26 under negative logic Maximum input voltage 30V Switch level approx 7 5V Passive temp sensor External power PT1000 supply 24V max 40mA 5759616263 52 7554 67 65 66 24V I O ground 5V 4 e plint 21 24 a e 50 51 53 58 60 55 56 Function w relay dd Analog Frequency output output 0 10V Open collector max 3mA max 24V 10mA Fig 5 Connecting expansion board Term Function Description RELAY B Funct
28. he setpoint entered The inverter calculates the rpm and regulates this to keep it as close to the setpoint as possible This means the inverter compensates for load variations The torque available is governed by parameter l lim which is normally set at 120 of the connected motor s current at nominal output Other settings see section 5 8 NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 22 NEO ee DRIVES With the Mode parameter in the Torque position the motor torque is regulated in line with the setpoint which is stated as a of the motor s nominal torque At low loads the motor rpm is limited in accordance with parameter Max fr Other settings see section 5 9 With the Mode parameter in the Pl reg position the motor is controlled such that an externally reconnected signal actual value matches the inverter s setpoint The motor frequency is regulated within a range defined by parameters Min fr and Max fr Other settings see section 5 9 2 5 6 2 Acceleration and retardation ramp parameters Accel and Retard Parameters Accel and Retard indicate how fast the motor is allowed to change speed The units here are in seconds and the value indicates the time it takes for the rotor frequency to change as much as the motor s nominal frequency f Nom The parameter values are calculated using the formulae below t f Nom Acc time desired frequency change t4 Nom Ret time desi
29. inimum run in each direction You cannot use torque regulation with rotation in different directions 5 10 Process regulation PI Reg mode Conversion Conversion temp to unit V to unit Setmin Setmax Setmin Setmax T min T max Norm function 4 l PI reg OpMode Setpoint Limiter PT1000 terminai D FY C Pa gt Reokp Min fr Max fr R fix1 e i Setpoint e i 2 V 9 Max fr d P terminal 3 A D AinSet ini e Acimar gt RegAmp o EN c ij R fix7 e e Actual VI 1 Forward back via fenninal Ti i id a A A Regri Pl reg OpMode Conversion V to unit Actmin Actmax Fig 9 Process regulator in outline The regulator units are selected using the parameter Unit see Table 15 Whatever setpoint source is used the regulator s actual values are always taken from the analog input at terminal 11 The scaling is governed by the parameter AinAct see Table 16 Parameters Actmin and Actmax govern the maximum and minimum input signals respectively from the actual value input corresponding to the unit selected The regulator generates an output signal in the form of a frequency setpoint in the range limited by parameters Min fr and Max fr The regulator s sampling rate is approx 10 samples per second NFO Drives AB 2007 Version 3 3 eng Only available together
30. int from a PT1000 type temperature sensor connected to terminal 66 Parameter Unit is selected to suit Pa as supplied Temperature readings are rescaled using T min T max Setmin and Setmax Scaling is a linear function between the points at which temperature T min gives the setpoint Setmin and temperature T max gives the setpoint Setmax Setpoint adjustment is limited by parameters Setmin and Setmax To make the function slope negative make T min greater than T max or Setmin greater than Setmax T min and T max can be set in the range 100 0 C To operate correctly Setmin should be set to the pressure at the actual value sensor terminal 11 required at temperature T min and Setmax to the pressure required at temperature T max P Pa A Setmax Setmin KT LC T min T max Fig 10 Relationship between Setmin Setmax U min and U max 5 10 4 Regulator setting parameters RegAmp RegKp and RegTi The regulator characteristics are governed by the parameters Max fr Actmax RegAmp RegKp and RegTi e The control error calculated as setpoint less actual value is converted from regulator unit to frequency with the factor RegAmp Max fr Actmax RegAmp can be set to 1 a positive or increasing value of the output signal if the regulator setpoint is greater than the current actual value or 1 a negative or decreasing value of the output signal if the regulator setpoint is greater than the current actual value Max fr is the maximum o
31. ion relay potential free contact max 2 A 50 V DC 50 W see section 5 12 1 52 24V 24V max 40mA a omo T c pomoN 9 pomoN LL common common SSCS common T common SSCS canre fw Table 3 Signal terminals and their use I O board NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 10 NEO arte DRIVES 4 4 3 Connecting serial channel RS232 The inverter can be controlled via a type RS232 serial channel Jumper S5 must then be installed on the left installed as supplied as shown in Fig 3 Connection is made to the 8 pin modular contact pins numbered 1 to 8 from left to right Table 4 shows examples of how connection can be made to either of the serial ports COM1 or COM2 on a PC These interfaces also usually work for other kinds of equipment with these types of contacts There is a separate manual available describing the control protocol contact NFO Drives AB Inverter Signal Description 9 p DSUB 25 p DSUB Signal modular contact direction COM1 DOS COM2 2x name Data from inverter to higher level system Data from higher level system to inverter Set to 1s by higher level system when sending to inverter Set to Os by inverter m sending otherwise Table 4 Connecting series channel RS232 4 4 4 Connecting serial channel RS485 The inverter can also be controlled via an RS485 type serial channel Jumper S5 must then be installed on the right as sho
32. is A Touching any components with the mains supply connected can be fatal Always disconnect the mains supply before removing the front panel Never open the inverter side panels A WARNING Even when disconnected from the mains supply the inverter may still be live on account of its buffer capacitors Always wait at least five minutes and take test readings between the and terminals to make sure no voltage remains before starting working on the inverter The inverter must always be earthed when mains supply is connected NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 4 NEO DRIVES Go 3 Technical data Motor output Motor rating kVV 0 37 0 75 1 5 2 2 3 4 5 5 7 5 11 15 Continuous rating A 1 3 2 1 3 5 4 9 6 7 8 8 11 1 14 8 21 5 27 0 Maximum rating A 1 6 2 5 42 5 8 8 0 10 5 13 3 17 7 25 8 28 5 Output voltage wave form Sinus Output frequency 0 150 Hz Operating mode 4 quadrant with external brake resistance as required Inverter input Supply voltage 3 x 380 440V 10 Frequency 50 60 Hz 10 Control inputs Setpoints 0 10V 2 10V 10V 0 20mA 4 20mA 20mA potentiometer 10kO 7 set frequencies selectable from terminal with positive or negative logic Actual values 0 10V 2 10V 10V Local mode Keyboard Forward Reverse Stop Accele
33. ith natural draught it may happen that the inverter cannot control the motor and posts a Run Fail alarm To handle such starts the inverter is equipped with a DC brake function This function NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 23 NEO ee DRIVES brakes the motor by a DC current for a set time after which the motor starts Parameter is set to the time it takes to stop the motor when it is running fastest The size of the brake current is adjusted to the motor s nominal current 5 6 5 Autostart parameter AutoSt The autostart function enables the motor connected to start as soon as power is applied without any start command being required This parameter also governs whether the inverter will attempt to restart after a fault see section 5 14 With the AutoStart parameter ON as supplied the motor will start as soon as power is applied provided the digital input signal RUN at the terminal is active The inverter cannot now be controlled via the serial channel unless it is switched to stop mode manually by pressing the STOP button on the keyboard With the AutoStart parameter OFF when power is applied the inverter will wait for a flank on the digital input signal RUN at the terminal When the signal goes from inactive to active the motor will start In this position the inverter can also be controlled via the serial channel AN WARNING use the autostart function with caution
34. log setpoint Freq and Speed mode NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 25 NEO arte DRIVES This function is disabled as supplied This is done by setting the window mid frequency Byp fr and bandwidth Byp bw to 0 0 Hz Example Acceleration from 0 to 50 Hz Accel 5 00s Byp fr 25 0Hz Byp bw 10 0Hz Gives a speed curve as shown in Fig 8 Hz aR feq 50 JE 80 dE Fig 8 Acceleration with frequency bypass 5 6 10 Field bus protocol parameter AnyBus As an option the NFO Sinus can be fitted with a module for controlling the inverter via a field bus This option is described in a separate manual 5 7 Frequency control without load compensation Ered ue mode Freque mode is designed to be used for simpler operations such as operating fans The inverter does not compensates for the motor s slip The setpoint set and the value that appears on the inverter display is the electrical frequency This means that if the setpoint is 50 Hz the motor will run with same speed as if it were connected directly to the mains voltage at 50Hz The inverter s internal speed regulator set via parameters Kp spd and Ti spd ensures that the electrical frequency setpoint is followed The parameters described below can be found in parameter group Freq and are only displayed if this mode is selected 5 7 1 Setpoint source for frequency parameter OpMode The source for the frequency
35. ls to display amomo smssississmassrsisesssssessisssssssssssssssssssssssrsssssssnsessensnssnerssssonsnusserssnssnsinsens 33 511214 Functiori relay iiec etr eite ive reta ues eessebt ue nane pe vean 34 5412 2 Analog voltage oUtp t oreet per estie eti retibus iP Per devencesabivansvecensanivar 34 5 12 3 Frequency output 5 13 Reset to factory Settings isccscsccsassicesvessassessetscosssstasssedesanbacascastasosseseiczasnssooduadas cenas c rosse NIERE eap oe aka 5 14 Alarm and fault pr CedUreS4 s ssssssss1ssssiisos4ess0sss2svsussisesssss0sssiassesn ssestssssrsnsssnss srssiinssadeisesnissivsnssssases 35 SUE C B E LI Nr Rc 35 5 14 2 Fault ET E A E 36 6 Brake chopper and power surge regulator eese teinte tenente entente tenentes 39 7 ier a Aa eno X 40 FS B TU local MOdeE 40 7 2 Running at fixed freQUENCY ssss sssesessssrrossssrrrressrrresssrrrrsssrrsrrssrrernsrrrrrssssrsr sr nte ttnttn ns sens rss ers nn ere ren sr rr nn nentes 40 7 3 Running from terminal fixed setpoint eese tenente rss rrn nns rr rna nn r rn nan 40 7 4 Running with analog setpoint 7 5 Torque control with analog Serpant essere 41 7 6 Process regulation with analog SetpOiht ssssessssssersssssrssssssrsesssrrrssssrrrrsssrrsrrnsrrrrnssrrrnn sn r rn nn rr nn nn 41 8 Your own parameter SettN8S s s sssssssssesssssssnsnssessissssssossenssansnsssssssdedsss
36. ly available together with I O card 36 NEO DRIVES Fault message AC Fail Fault description other fault parameters Possible fault types i Alarm Ind Ind Disable Ain Fail Disable Disable i NFO Drives AB 2007 Default setting Type of ErrCnt Some parameter when starting up was outside permitted range or reset to factory setting command was given at power up Phase error power supply phases not symmetrical 3 phase supply inverters only Safety earth system IT gnd Used when the inverter is connected to IT mains the ground reference is missing Default E Inverter heat sink temperature too high 2 Motor overheating thermistor input limit exceeded See 5 11 1 PTCTemp The power monitor has tripped The motor connected has been working under overload for too long time 10000 motor temperature Memmi T Default So Range HELI C 100 100 C Fail Alarm Analog setpoint input signal outside set range DC link voltage too low Version 3 3 eng Only available together with I O card Go Source of fault action All parameters reset to factory settings Press ENTER to confirm and check that all parameter values are correct Run autotuning One supply phase missing difference in voltage between phases is too great or no earth connection Press ENTER to acknowledge fault To switch fault off use parameter AC Err NB inve
37. maximum torque which is set to 120 of the motor s nominal torque when autotuning if the motor can supply enough current Please note maximum torque is reduced if the motor is running in field weakening normally over motor s nominal frequency A NB if the motor is running under no load conditions or the torque load is less than that set it will accelerate to the maximum frequency set So it is important to set the maximum frequency using the parameter Max fr 5 9 1 Torque regulation setpoint source parameter OpMode The torque setpoint source is governed by parameter OpMode the possible values of which are as shown in Table 14 OpMode Torque setpoint source fopmode Torque setpointsouree Torque from parameter T fix5 clockwise Table 14 Torque OpMode parameter settings 5 9 2 Fixed torque setpoints parameters T fix1 T fix7 There are seven parameters available for fixed torque setpoints T fix1 to T fix7 These can be set in the range 1 200 76 NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 29 NEO e DRIVES 5 9 3 Analog torque setpoint range parameters Tq min and Tq max When using torque regulation parameters Tq min and Tq max indicate the torque range in which the inverter is to work when the analog input is designated as setpoint source They can be set within the range 1 200 The range is scaled such that torque Tq Max applies at full run and Tq Min at m
38. mum integration time it will take longer than necessary for the motor to run up to the specified speed Reduce the integration time Ti spd carefully which is indicated by the fact that the speed control sets itself faster at the correct speed If the integration time selected is too short this will show up as an unstable response to speed changes with overruns in speed regulation Select the integration time that gives the fastest response but without wobble Power Speed sj s m electronics setpoint RAS dcm and Integrator 4 motor component model 1 N sTi spd Estimated speed actual value Fig 7 Speed regulator If you have any doubts or problems contact NFO Drives AB 5 6 9 Frequency bypass parameters Byp fr and Byp bw The NFO Sinus is equipped with a facility for avoiding operating within a selected range of frequencies by using what are known as frequency bypass There are two parameters that are used to set the frequency range Byp fr indicates the frequency s mid frequency and Byp bw its bandwidth When the estimated rotor frequency is in the window the acceleration and retardation times are set temporarily to 0 so the motor will accelerate or retard through the window at full power If the setpoint is set within the window the motor will run with ramps set to 0 at the frequency selected This function is not available under frequency or rpm control with ana
39. n 3 3 eng Only available together with I O card 14 NEO a DRIVES Table 6 Digital input settings at signal terminals 5 6 14 15 and 26 Parameter AinSet Analog value Input terminal setting Table 7 Settings for analog setpoint inputs at signal terminals 5 3 4 Serial channel mode Switching to serial mode is done by giving a command via the serial channel This can only be done with the motor stopped in local mode and immediately after startup with the inverter in the Ext Stby position waiting for a run signal To return to local mode use serial channel command or press STOP In serial channel mode the inverter can be controlled via all the setpoint sources described in section 5 3 3 external mode There are also facilities for reading and amending parameters in the inverter NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 15 NEO DRIVES For using serial channel see separate manual available Contact NFO Drives AB 5 4 Parameter specifications Parameters are divided into parameter groups as shown in the table below Motor Control Freque Speed Torque PI Reg Output Serial Status Error P Nom Mode OpMode OpMode OpMode OpMode ReMode SioAdr l rms E logg U Nom Accel F fix1 C fix1 T fix1 R fix1 ReFreq SiBaud DClink RstDly f Nom Retard F fix2 C fix2 T fix2 R fix2
40. n 3 3 eng Only available together with I O card 35 NEO ee DRIVES The last 30 faults at any time are saved in a non volatile memory in the inverter so they can be read off even if the power fails To read the fault log use parameter E logg Press f and l to scroll through the fault messages saved Line one of the display shows the fault line two when it occurred relative to when the inverter was powered up OpTime to a resolution of 0 1 hours If the same fault occurs repeatedly only the time it first occurred is logged The fault log can be wiped by pressing SHIFT ENTER 5 14 2 Fault messages All fault messages fault types and other fault parameter setting options are shown in the table below ErrCnt can be set in the range 0 99 for all faults To configure the parameters for a given fault find that fault in the parameter group Error press ENTER then scroll through the parameters using FWD REV To change parameters press or U then ENTER A Warning Turning off disable any fault message may lead to inverter destruction In this case the warranty is not valid If you are in any doubt how to configure the error messages always contact NFO Drives AB Meaning of fault types Fail Motor stopped and alarm relay indicates alarm Alarm Alarm relay indicates alarm the motorn is not stoped Ind Fault in display only the motorn is not stoped Disable Fault turned off NFO Drives AB 2007 Version 3 3 eng On
41. n on the display This operating mode is called Freque and is supplied installed e Speed regulation for an induction motor with speed calculation motor speed compensated for load variations with a fixed digital or analog setpoint see section 5 8 for more details The motor s estimated speed is shown in the display This mode is called Speed e Torque control for an induction motor with a fixed digital or analog setpoint see section 5 9 This operating mode is called Torque e Asa process regulator with feedback from a process controlled by an induction motor see section 5 10 This mode is called Pl reg A Autotuning must always be done before first motor start see section 5 5 Autotuning and motor parameters 5 2 Keyboard and display The diagram and table below shows what the keyboard looks like and the key functions generally FWD Local mode start motor clockwise Programming mode scroll forward through parameters or parameter groups Local mode start motor anti clockwise Programming mode scroll back through parameters or parameter groups PROG Go to exit programming mode Go from parameters to parameter groups a FO SHIFT Increase increment by TT and U amp E STOP Stop motor and switch to local mode GN Used together with SHIFT starts motor J a ar S Kz ENTER Set parameter as amended or go to parameter 7 E group NL NL POWER RUN FAIL Increase parameter when changing O O O S
42. n parameter group Control to Torque e Set parameter OpMode in parameter group Torque to Analog F e Set max motor speed using parameter Max sp in parameter group Torque to 15 Hz e Start motor by connecting terminal 5 RUN to terminal 1 COMMON e Stop motor by disconnecting terminal 5 and terminal 1 7 6 Process regulation with analog setpoint The procedure below is designed for process regulation with analog setpoint 0 10V and feedback signal 0 10V e Set parameter Mode in parameter group Control to Pl reg e Connect analog setpoint signal between terminal 3 VOLTAGE and terminal 23 COMMON e Check that parameter AinSet in parameter group Control is set to 0 10V e Connect actual value signal between terminal 11 ACT VOLTAGE and terminal 24 COMMON e Check that parameter AinAct in parameter group Pl reg is set to 0 10V e Set parameter OpMode in parameter group Pl reg to Analog F e Set max motor speed using parameter Max fr in parameter group Pl reg to 45 Hz e Set the pressure the setpoint represents at OV using parameter Setmin in parameter group Pl reg e Set the pressure the setpoint represents at 10V using parameter Setmax in parameter group Pl reg e Set the pressure the actual value sensor measures at OV using parameter Actmin in parameter group Pl reg e Set the pressure the actual value sensor measures at 10V using parameter Actmax in parameter group Pl reg e Setthe regulator amplification using parameter
43. n the range 0 0 150 0 Hz 5 7 3 Analog frequency setpoint range parameters Fr min and Fr max Under rpm regulation parameters Fr min and Fr max indicate the frequency range in which the inverter is to operate when an analog input is designated as setpoint source The terminal and scaling to be used are set using parameter AinSet see Table 7 Analog F and Analog R scale the range such that Fr max applies at full run and Fr min at minimum run in the direction concerned If rotation is required at different directions e g at 10V stopping in the middle set Fr min to Fr max 5 8 RPM regulation with speed estimation Speed mode Speed mode is designed to be used for more complex operating conditions when precise RPM regulation is required The inverter compensates for the motor s slip The setpoint as set and the value that appears in the display is the rotor RPM the speed the shaft is rotating at The inverter s internal speed regulator set via parameters Kp spd and Ti spd ensures the motor follows the speed setpoint set as far as possible The parameters described below can be found in the parameter group Speed and only appear if this mode is selected NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 27 NEO arte DRIVES 5 8 1 Setpoint source for speed parameter OpMode The source of the speed setpoint is governed by the parameter OpMode possible values for which are shown in Table 12
44. n this is confirmed the inverter will work as normal but with all parameters reset So 1 Press FWD and REV buttons 2 Connect mains supply 3 Hold these buttons down and press PROG when the software revision is shown in the display 4 Press ENTER to acknowledge Par fail 5 14 Alarm and fault procedures If a fault occurs in the inverter it means one of the following has happened depending on the configuration Motor stopped and alarm relay indicates alarm Fail alarm relay indicates alarm Alarm fault in display only Ind or nothing Disable Provided parameter AutoSt ON and Fail mode is selected for the fault concerned after a given time RstDly attempts will be made to restart the motor if the cause of the fault has disappeared How many restart attempts are made depends on the type of fault concerned ErrCnt If more faults than what ErrCnt is set to occur within time TrTime no further automatic restart attempts will be made Once a fault has been acknowledged the inverter can be restarted Any faults that occur are logged in the fault log E logg Some faults have to persist for a given time Delay before they generate a fault ErrCnt 2 RstDly is reset TrTime Time RsfDly RstDiy RstDly RstDI Fault e g S Ty SIDIY y y AC fail Motor Fig 11 Typical fault situation 5 14 1 Fault log NFO Drives AB 2007 Versio
45. nge 100 C The power monitor can be made to trip at lower motor loads by entering the ambient temperature as higher than it actually is or a higher load can be allowed by entering a lower temperature If the motor is equipped with forced cooling i e there is a cooling fan that is not connected to the motor shaft and hence cooling at a constant rate irrespective of motor rpm set parameter F Cool to a value other than zero The power monitor now ignores the motor speed and replaces it with the value of the parameter F Cool If the value is set to the same as nominal motor rpm parameter N Nom the cooling output will then be calculated as if the motor were always running at that rpm Parameter F Cool can be set within the range 0 to 10000 0 indicating there is no forced cooling 5 12 Output signals to display NFO Sinus units are equipped with three outputs to enable different status conditions and parameters to be monitored in use With the add on card fitted safety earth and I O ground are automatically connected corresponding jumper S4 fitted NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 33 NEO e DRIVES Before the outputs can display the correct values the motor parameters must be set correctly see section 5 5 5 12 1 Function relay The function relay has a number of functions and is used to indicate that a given status has been reached This relay is at terminals 50
46. nnsssrsssssessssassssessesskssssnisnsrassndesnissssssrenrs 42 NFO Drives AB 2007 Version 3 3 eng Only available together with I O card a2 NEO ee DRIVES 1 Introduction The frequency inverter described in this operating manual is used for speed RPM and torque control of three phase induction motors This manual tells you how to install and use the inverter Read the manual carefully before installing the inverter to ensure you install it correctly and get the maximum performance out of it NFO Sinus is a frequency inverter which uses the patent Natural field orientation system to give perfect speed control of induction motors all the way from zero to full speed The inverter also has a patented switch connection that ensures the motor is fed a perfect sinus voltage at all times under all operating conditions 2 Safety aspects Always disconnect the inverter from the mains supply before working on any electrical or mechanical installation components Installation maintenance and repairs must always be conducted by staff adequately trained and experienced for the purpose Modifying or replacing any components of the inverter or its accessories will render the inverter warranty null and void Should the need for any modifications or replacements arise always contact NFO Drives AB Components in the power section and some components in the signal section are connected to the mains supply when the inverter
47. nverter Please note all inputs should be made with the motor cold i e the motor should have reached normal ambient temperature for the area in which it is to be used If inputs are made with the motor hot this may cause operating problems when starting the motor from cold Autotuning can also be used with the inverter in external mode Ext Stby but not with the motor running If autotuning is used in this mode the inverter switches to local mode automatically and the display reads Stop once tuning is complete and programming mode has been exited To return to external mode press SHIFT STOP A simplified form of calculating parameters can be carried out by pressing TT again in point 3 as above The display then reads Basic This calculation procedure only measures the motor stator resistance and then uses that as the basis for calculating the other motor parameters There is a way of calculating the other parameters if you know the motor stator resistance You can do this by entering the known value of R stat in point 2 above and then press f three times in point 3 The display will now read Tuning Calc press ENTER to run calculations Please note if the stator resistance is measured manually it must be measured between two phase connections on an unconnected motor connected Y or D at which the motor is to be run Enter half the measured value in the R stat This calculation method does not give precisely the same motor paramet
48. onfigured via parameter F Out is located at terminal 56 and is related to any of the ground terminals see Fig 1 This output is scaled using parameter F Max Maximum output frequency is 32kHz The output signal is of the open collector type with an internal pull up to 5V If a greater output signal fluctuation is required an external pull up resistance can be fitted to the voltage required max 24V The external pull up resistance must be at least 10kOhm Possible values for parameter F Out e Disable display off NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 34 NEO ee DRIVES e Freque shows inverter s electrical frequency Output shows frequency F Max at nominal motor frequency f Nom irrespective of direction of rotation and OHz at 0 Hz e Speed shows motor speed estimated rpm same as parameter SpdAct Output shows frequency F Max at nominal motor rpm N Nom irrespective of direction of rotation and OHz at 0 rpm e Torque shows motor torque Output shows frequency F Max at nominal motor torque irrespective of direction of rotation 5 13 Reset to factory settings The inverter parameters can be reset to what they were as supplied This can be done under Power On by pressing both FWD and REV buttons and holding them down then pressing PROG at the same time when the software revision is shown in the display The inverter will now post an alarm error message Par fail Whe
49. onnections Press ENTER to acknowledge fault Possible sources of faults depending on motor operating case One or more output phase U V W is in contact with the safety earth PE or other external potential Short circuit between some of the output phases U V W Open circuit in one or more outgoing phases Resistance too high in any of the outgoing phases poor contact loose contact in motor or motor wiring Motor parameters faulty autotuning not performed Rectify fault Press ENTER to confirm Motor rotor is stuck Motor was turning when started or parameter R stat is set too high Check motor is not turning when starting Enable DC brake section 5 6 4 and or start delay section 5 6 3 Check whether autotuning is performed Press ENTER to confirm fault Operations involving passing the 0 Hz range slowly can generate this fault by mistake In that case disable fault by setting fault parameter to Disable See separate manual AutoReset ON used together with LonWorks Motor in regenerative mode Excess energy fed to brake chopper resistance Alarm will disappear once energy reduces Reduce acceleration ramp or check whether parameter l limt matches motor used Alarm will disappear once current falls Only available together with I O card 38 NEO arte DRIVES 6 Brake chopper and power surge regulator If a motor is trying to retard a load with high inertia it will feed en
50. ration time 0 2 500s Retardation time 0 2 500s Signal outputs Voltage 0 10V Frequency 0 32kHz open collector Relay Fault relay operating relay function relay Control modes Frequency control 0 150Hz Speed control 0 9000 rpm Torque control 1 200 of nominal motor torque depending on inverter capacity Process control PI with feedback temperature sensor PT1000 for recording temperature at constant pressure control in the ventilation system 24V supply to external sensors Motor safety Thermistor input PTC or Klixon Power monitor Switch off if motor is loaded over rated power for a long time Ambient conditions Ambient temp 10 to 40 C Storage temp 20 to 60 C Humidity 0 90 non condensing Protection class IP20 EMC certification Approved for medical devices EN 60601 1 2 residential commercial and light industrial environment EN 61000 6 3 and industrial environment EN 61000 6 2 without shielded cables or EMC filter etc Dimensions 365 47 x 265 x 70 365 47 x 265 x 123 365 47 x 265 x 203 Weight 4 9 kg 6 5 kg 14 kg Functions marked only available together with I O card NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 5 NEO DRIVES 4 Installation All terminals are accessed via the lower front panel fitted with four screws remov
51. red frequency change Retard Example a motor has a nominal frequency of 50Hz and is to accelerate from 0 to 80 Hz in 2 sec and brake from 80 to 5 Hz in 9 sec tac 50 2 80 1 25 s Accel treaa 00 9 75 6 00 s Retard Remember e In generative operation the inverter cannot brake harder than it can handle the motor s surplus energy If the brake chopper is used this will handle the surplus but setting the retardation time too low may mean the brake chopper circuit becomes overloaded e The inverter cannot accelerate faster than its maximum torque allows Setting the acceleration time too low will mean the inverter current is limited extending the acceleration time A External braking resistance must be fitted if the retardation time is less than 5 sec Avoid setting retardation ramp parameter Retard any shorter than necessary 5 6 3 Run delay parameter RunDly If the inverter fails to start the motor when starting once power is applied inverter posts Run Fail the parameter RunDly can be set so that the inverter delays starting the motor so the motor remains stationary This can occur when operating with large inertial torque such as a fan rotor Set parameter to the time it takes for the motor to stop running at the maximum possible operating frequency Run Dly appears in the display while the delay is active 5 6 4 Motor brake parameter DC Brk When starting a rotary load such as a fan rotor w
52. rr rna 12 5 3 Operating modes S31 Wocall Ode encre 13 5 3 2 Programming mode eeeeee eee eee 14 5 3 3 External mode eed eee teinte eot o nes t s te b eR e ee y ee ise eda ien dag 14 5 3 4 Serial channel mode a teret cteitb Sdvagatenscahueapnndeunsades coveuatasoiposeuacseruer 15 54 Parameter specifications M M 16 5 5 Autotuning and motor parameters csecssssssessecssessessssusessessesssssssesseesscussueseeasesseusaesseessensseseeseenees 5 6 Setting control parameters 5 6 1 Control mode parameter Mode 5 6 2 Acceleration and retardation ramp parameters Accel and Retard 23 5 6 3 X Run delay parameter RunDly essen 23 5 6 4 Motor brake parameter DC Brk eese tentent ttnttntentnntnne 23 5 6 5 Autostart parameter AUtORL eee 24 5 6 6 Energy save function parameter EnergySave eene 24 5 6 7 Stop mode parameter StMode 5 6 8 Speed regulator parameters Kp spd and Ti spd sse 24 5 6 9 Frequency bypass parameters Byp fr and Byp bw asses 25 5 6 10 Field bus protocol parameter AnyBUS sss 26 5 7 RPM control with frequency estimation Freque mode sss 26 5 7 1 Setpoint source for frequency parameter OpMOde sse 26 5 7 2 Fixed frequency setpoints parameters F fix1 F fix7 sse 27 5 7 3 Analog frequency setpoint range
53. rter may be damaged if fault message is switched off while fault still remains Wait until inverter has cooled down Check inverter is installed so air can circulate sufficiently Check ambient temperature is not too high Press ENTER to acknowledge fault Let motor cool down Press ENTER to acknowledge fault Let motor cool down Adjust settings if necessary parameters F Cool and S Temp as in section 5 11 2 Press ENTER to acknowledge fault Open circuit in signal line to analog setpoint or AinSet not set correctly see 5 3 3 Press ENTER to acknowledge fault Power supply too low Check inverter mains connection Press ENTER to acknowledge fault 37 NEO DRIVES DC High Fail GND Fail Fai IMagnLow Cur High Run Fail Disable aaa Table 18 Fault message NFO Drives AB 2007 Version 3 3 eng DC link voltage too high Earth leak current in one or more motor phases too high Magnetising current in motor too high or too low Current in one or more motor phases too low Current in one or more motor phases too high Inverter did not acquire control of motor when starting OFF ON OFF Sio Fail Fail Fail a Series communication error See separate manual Brake chopper on Current limit set has been reached Motor is regenerative with no brake chopper resistance or with resistance sluggish Retardation time too short Mains supply too high Check inverter mains c
54. se the motor is running If switching to programming mode from external or serial channel mode motor control remains in that mode but parameters cannot be modified when the motor is running 5 3 3 External mode When running in external mode line one of the display shows the inverter status and line two its current frequency If the inverter status reads Ext Stby this indicates the inverter is ready to run and is waiting for a run signal Ext Run appears when the inverter is running The source for the setpoint is governed by the parameter OpMode for the operating mode concerned as in Table 12 Table 13 Table 14 and Table 17 Selecting OpMode Terminal enables the setpoint source to be selected from the signal terminals as in Table 6 If using analog setpoints the signal type is selected using parameter AinSet from the Control parameter group as in Table 7 Setpoint sources can be changed on the run Analog F means run counter clockwise at the lowest setpoint at min and the highest setpoint at max run Analog R likewise but clockwise Fix 1 F means run clockwise with setpoint from corresponding fixed value parameter for the control mode concerned Fix 1 R likewise but running counter clockwise and so on Fixed value parameters can be changed on the run in which case the new setpoint applies immediately To switch to local mode motor released press STOP To switch to programming mode press PROG NFO Drives AB 2007 Versio
55. talled You can switch to local mode at any time by pressing STOP which disconnects the motor To switch from any mode to programming mode or vice versa press PROG If switching to programming mode from external or serial channel mode motor control is maintained as in those modes 5 3 1Local mode When motor is running you can switch to local mode stop motor by pressing STOP at any time In local mode the display reads Stop and a frequency The frequency displayed can be adjusted and saved in the inverter s memory Pressing FWD or REV accelerates the motor clockwise or anti clockwise the display reads Acc Final fr appears once the frequency has been reached When the button is released the motor is retarded if parameter stMode is in Brake position the display reads Ret If stMode is in the Release position the motor runs down If the inverter is run at frequency 0 0 the display will read St still provided the motor is stopped The frequency can also be increased and decreased in operation by pressing or U This way of running the motor is only designed to be used when starting The motor can also be started by pressing SHIFT FWD or SHIFT REV in which case it will continue to run even once the keys are released Once again you can increase or reduce the frequency by pressing fl U SHIFT TT or SHIFT To stop the motor press STOP or FWD To switch to external mode press SHIFT STOP You can also switch if parameter
56. tor size You can change the motor parameters after autotuning if you wish So NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 20 NEO e DRIVES Check inverter is not running 2 Go to programming mode and enter parameters P nom U Nom f Nom N Nom I Nom and cos 0 for the connection the motor is to be used in Y or D Select the Tuning command and press fl When asked Tuning Full press ENTER any other button will not execute the command Wait once parameters have been input the screen will read Tuning Ready sau kw Continue setting other inverter parameters If a fault occurs during autotuning two different fault messages may appear Tuning Fail M and Tuning Fail P The first message indicates that measuring of the motor parameters failed the second that some parameter is out of limits when calculated With Tuning Fail M all motor parameters remain unchanged at the values they had before starting the procedure Either way the fault must be traced and corrected before the motor can start Faults may be due to e Motor not connected correctly short or open circuit in wiring e Motor fault short or open circuit e Motor connected wrongly Y connected instead of D connected or vice versa e The inverter is under or over dimensioned for the motor concerned the inverter s motor parameter range allows one size greater and two sizes smaller standard motors than those nominal for the i
57. utput signal in Hz Actmax is the maximum actual value at the input in regulator unit e The proportional regulator component affects the output signal directly RegKp amplifies the proportional regulator component and can be set within the range 0 00 to 1 00 0 eliminates the proportional component completely giving a purely integrative regulator e The regulator integration time RegTi is a time constant which governs the rate at which the regulator output signal changes at a given control error RegTi can be set in the range 1 0 to 200 0 seconds where the value 200 00 eliminates the integrator component completely giving a purely proportional regulator 5 11 Motor safety functions The NFO Sinus is fitted with two different motor safety functions a thermistor sensor input and power monitor which calculates the motor s approximate winding temperature continuously NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 32 NEO S DRIVES 5 11 1 PTC input If the motor is fitted with PTC thermistor s or thermocontact Klixon these can be connected directly to the inverter This is done between terminal 25 PTC and terminal 21 22 23 or 24 I O ground as in Fig 1 A resistance of 3 9 kQ min 1 4W must then also be connected between terminal 25 and 12V If negative logic is selected bridge S1 moved as in Fig 3 connect the PTC thermistor between terminal 25 PTC and 12V and a resistance of
58. wn in Fig 3 Connection is made to terminals 18 SIO and 29 SIO Any terminal resistance must be connected to the terminal separately 4 5 Installation and ventilation The inverter is designed to be installed in equipment cabinets with adequate cooling with a throughflow of cold air It is important to ensure that air does not recirculate inside the cabinet The cooling air temperature must not exceed 40 C An 80 mm clearance must be left above and below the inverter to ensure sufficient air passes through it A The inverter must not be installed such that outlet air from another inverter or equipment blows directly into the inverter air intake If a number of inverters are to be installed side by side a 20 mm gap must be left between inverters to ensure air circulates properly It can be fitted to the installation plate with 4 x M5 screws A Please note When installing it is essential to ensure that no foreign bodies such as drilling swarf or screws fall into the inverter as this may cause shorting NFO Drives AB 2007 Version 3 3 eng Only available together with I O card 11 NEO arte DRIVES 5 Installation and programming 5 1 General notes The inverter can be used in four control modes e Frequency regulation of an induction motor motor speed is not compensated for load variations with a fixed digital or analog setpoint see section 5 7 for more details The motor s electrical frequency is show
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