Danfoss VLT AAF00x Instruction Manual Download Page 18

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130BB961.10

Figure 4.5 Frame size D13, AAF06

1549,9

[61]

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2000,1

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130BB496.10

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Figure 4.6 Frame size E7, AAF05

How to Install

VLT Active Filter AAF 00x

MG.90.V2.22 - VLT

is a registered Danfoss trademark

4-5

Summary of Contents for VLT AAF00x

Page 1: ...MAKING MODERN LIVING POSSIBLE VLT Active Filter AAF00x Instruction Manual...

Page 2: ...ng the Active Filter 4 2 4 2 3 Transportation and Unpacking 4 2 4 2 4 Lifting 4 3 4 2 5 Mechanical Dimensions 4 4 4 3 Mechanical Installation 4 9 4 3 3 Terminal Locations Frame size D 4 10 4 3 4 Termi...

Page 3: ...6 28 6 11 1 Default settings 6 28 6 11 2 Operation Display 0 6 29 6 11 3 Digital In Out 5 6 30 6 11 4 Comm and Options 8 6 30 6 11 5 Special Functions 14 6 31 6 11 6 Adj Freq Drive Information 15 6 32...

Page 4: ...ss Parameters 7 7 7 4 1 Parameter Handling 7 7 7 4 3 IND 7 7 7 4 4 Text Blocks 7 7 7 4 5 Conversion Factor 7 7 7 4 6 Parameter Values 7 7 8 General Specifications 8 1 8 1 Electrical Data 8 1 8 1 1 Pow...

Page 5: ...Contents VLT Active Filter AAF 00x MG 90 V2 22 VLT is a registered Danfoss trademark...

Page 6: ...g from the use or the inability to use information contained in this manual even if advised of the possibility of such damages In particular Danfoss is not responsible for any costs including but not...

Page 7: ...How to Read the Instruction VLT Active Filter AAF 00x 1 2 MG 90 V2 22 VLT is a registered Danfoss trademark 1 1...

Page 8: ...OTE At altitudes above 9843 ft 3 km please contact Danfoss Drives regarding PELV 2 1 2 General Warning WARNING Touching the electrical parts may be fatal even after the equipment has been disconnected...

Page 9: ...ltage terminals PELV conditions Consult the relevant clauses in these instructions for information about the installation requirements 2 1 5 Avoid Unintended Start NOTE While the active filter is conn...

Page 10: ...ption Soft charge circuit 130BB719 10 The factory settings allow for fast start up though dedicated programming is possible through the local user control panel LCP allowing adaptation to more demandi...

Page 11: ...rs and filters with integral options by sending a type code string describing the product to the local Danfoss sales office i e AAF 00XA190T4E21H2xGCXXXSXXXXAxBXCFXXXDx The meaning of the characters i...

Page 12: ...on occupied with active filter control card D options 38 39 DX No Options Possible choice Product groups 1 3 AAF Series 4 6 006 Current rating 7 10 A190 190Amp A250 250Amp A310 310Amp A400 400 Amp Pha...

Page 13: ...Introduction to VLT Active VLT Active Filter AAF 00x 3 4 MG 90 V2 22 VLT is a registered Danfoss trademark 3 3...

Page 14: ...3 2 1 CTs 130BB720 11 Figure 4 1 Diagram showing basic installation including line power and CTs 4 2 Pre installation 4 2 1 Planning the Installation Site NOTE Before performing the installation it i...

Page 15: ...te inappropriate transport which might have resulted in internal unit damage Even though the unit seems to be intact externally make sure to survey the damage 4 2 3 Transportation and Unpacking Before...

Page 16: ...Recommended Lifting Method for AAF 006 Frame Sizes D13 and E9 NOTE The lifting bar must be able to handle the weight of the unit See Mechanical Dimensions for the weight of the different frame sizes...

Page 17: ...the unit to provide proper cooling The plinth of the D and E frames filters should be mounted before the unit is lifted to its final position 4 2 5 Mechanical Dimensions 1733 6 68 1553 4 61 1853 6 73...

Page 18: ...378 14 9 130BB961 10 Figure 4 5 Frame size D13 AAF06 1549 9 61 2119 8 83 159 2 8 493 5 19 2000 1 79 130BB496 10 840 Figure 4 6 Frame size E7 AAF05 How to Install VLT Active Filter AAF 00x MG 90 V2 22...

Page 19: ...1491 35 mm 493 23 mm 2000 78 78 195 7 68 491 19 19 43 130BB644 10 1498 59 06 600 Figure 4 7 Frame size E9 AAF06 How to Install VLT Active Filter AAF 00x 4 6 MG 90 V2 22 VLT is a registered Danfoss tra...

Page 20: ...pping Dimensions Height in mm 72 9 1852 83 1 2111 Width in mm 44 1118 44 1118 Depth in mm 37 3 947 37 3 947 Weight lbs kg 15 8 400 17 7 450 Filter Dimensions Height in mm 68 2 1732 78 7 2000 Width in...

Page 21: ...310 400A Shipping Dimensions Height in mm 29 5 750 34 864 Width in mm 29 737 29 737 Depth in mm 76 5 1943 86 7 2203 Weight lbs kg 13 4 340 19 7 500 Filter Dimensions Height in mm 68 5 1740 78 7 2000 W...

Page 22: ...eet metal punch for conduits or cable connectors Lifting bar to lift the unit rod or tube max 1 in 25mm able to lift minimum 2204 lbs 1000 kg Crane or other lifting aid to place the unit in position T...

Page 23: ...frame size E9 Wire access Ensure that proper cable access is present including the necessary bending allowance NOTE All cable lugs shoes must mount within the width of the terminal bus bar 4 3 3 Termi...

Page 24: ...0 6 6 Figure 4 14 Terminal Location of Frame E7 323 9 12 8 0 0 0 0 0 0 380 7 15 169 7 6 6 258 7 10 2 348 7 13 7 130BB724 10 Figure 4 15 Terminal Location of Frame E9 NOTE Note that the power cables a...

Page 25: ...IP21 IP54 IP21 54 Frame size D13 D9 E9 E7 Door fan 340m3 h 200 cfm 340m3 h 200 cfm Heatsink 765m3 h 450 cfm 1230m3 h 725 cfm Table 4 1 Heatsink Air Flow NOTE For the active filter the fan runs for th...

Page 26: ...Figure 4 18 Frame Size D9 560 22 0 350 13 8 20 8 2X370 14 6 2X200 7 9 60 2 4 69 5 2 74 70 4 2 77 203 8 0 246 9 7 2X113 4 4 60 2 3 115 4 5 2X223 8 8 70 2 8 130BB963 10 Figure 4 19 Frame Size D13 130BB...

Page 27: ...ction is for the field installation of input option kits available for active filters Do not attempt to remove RFI filters from input plates Damage may occur to RFI filters if they are removed from th...

Page 28: ...the line power wire of the active filters must be rated at a higher current than the filter rating itself NOTE It is insufficient to rate the power cable for the filter current rating alone due to sk...

Page 29: ...ngths below 656 ft 200 m To protect the active filter the recommended fuses must be used or the unit must have built in fuses Recommended fuses can be seen in the tables of the fuse section Always ens...

Page 30: ...130BB738 11 7 3 2 1 6 8 4 5 10 9 Figure 4 24 Frame size D13 How to Install VLT Active Filter AAF 00x MG 90 V2 22 VLT is a registered Danfoss trademark 4 17 4 4...

Page 31: ...d 3 AFC card 9 Line power wire connection 4 RFI input option plate 10 Back channel 5 Fuse disconnect line power option 11 LCL circuitry 6 LCL circuitry 12 DC capacitors How to Install VLT Active Filte...

Page 32: ...line reactor 2 Line power wire connection 6 LCL capacitors R S T 7 LCL filter reactor L1 L2 L3 8 CT wire connection point 3 Input plate 9 Fan SMPS fuse 4 Back channel fan How to Install VLT Active Fil...

Page 33: ...FC card 8 Power card 3 AFC card 9 Line power wire connection 4 RFI input option plate 10 Back channel 5 Fuse disconnect line power option 11 LCL circuitry 6 LCL circuitry 12 DC capacitors Table 4 3 F...

Page 34: ...evelop in the fault current If ELCB relays are used local regulations must be observed To ensure effective protection and unintended tripping of protective relays all relays must be suitable for prote...

Page 35: ...ended Set up via hardware Rated frequency 50 60 Hz Rated power burden See Table 4 4 AAF s burden equal 2m Rated power burden VA 5 7 5 10 15 30 Impedance of current CT 0 15 0 25 0 35 0 55 1 15 Table 4...

Page 36: ...9A CT RMS 750Amp Burden 30m 2 5mm2 wire 25 0 0082 30 1 25 7 4 7 5 VA Current transformer installation The unit only supports three CT installations External CTs should be installed on all three phases...

Page 37: ...load the filter will compensate all loads simultaneously If as in Figure 4 31 the CTs are installed in front of only some of the loads the filter will not compensate unwanted current deformation of t...

Page 38: ...needed corrected current NOTE Erratic filter operation can be a result of incorrect current transformers connection point programming 300 26 CT Placement 4 5 8 Auto CT Detection The VLT Active Filter...

Page 39: ...7500A 0 2 0 5 1 1 0 45V A ASR ASK EASR EASK Measuring current transformer for cables and bus bars 5 or 1A 100 5000A 0 5 1 1 25 30V A KBU Split core current transformer 5 or 1A 5 or 1A 0 5 1 15 30V A K...

Page 40: ...uency of the capacitor bank is not in the operation range of the active filter NOTE Always use detuned capacitor banks in installation with Adjustable frequency drive and active filters to avoid reson...

Page 41: ...rected current is not measured 4 5 11 Fuses Branch circuit protection In order to protect the installation against electrical and fire hazard all branch circuits in an installation switch gear machine...

Page 42: ...n P N Rating D and E FNQ R 3 A 600 V 4 5 12 Line Power Disconnectors Frame size Power Voltage Type D A190 380 480V ABB OETL NF200A E A250 380 480V ABB OETL NF400A E A310 380 480V ABB OETL NF400A E A40...

Page 43: ...res CAUTION Induced Voltage Run input power and control wiring in separate metallic conduits or raceways for high frequency noise isolation Failure to isolate power and control wiring could result in...

Page 44: ...AC line jumpers between 100 102 and 101 103 If an external supply is needed the jumpers are removed and the supply is connected to terminals 100 and 101 A 5 Amp fuse should be used for protection In U...

Page 45: ...mode Power supply 10V DC 15mA 24V DC 200mA MK102 12 13 18 19 27 29 32 33 20 37 130BB507 11 Figure 4 41 Diagram showing all electrical terminals without options Terminals L1 L2 and L3 91 92 93 and 95 a...

Page 46: ...7 29 32 33 20 37 24 V DC 0 VDC 130BT106 10 PNP Source Digital input wiring NPN Sink Digital input wiring 12 13 18 19 27 29 32 33 20 37 24 V DC 0 VDC 130BT107 11 NOTE To comply with EMC emission specif...

Page 47: ...el installed filters uses the same current input and so only one external set of CTs have to be installed If additional filtration is needed additional filters have to use separate current transformer...

Page 48: ...tive for filters in master follower configuration but it is recommend setting follower units manually It is advised to use the following procedure for setting the CT values 1 Program master unit 300 1...

Page 49: ...filter is running correctly follow these steps CAUTION Incorrect current transformer connection installation or configuration will lead to unintended and uncontrollable behavior of the filter 1 300 2...

Page 50: ...The active filter allows different CT polarity of all three current transformers That means that 300 25 CT Polarity need to be set for all three CTs individually The current transducers are then succ...

Page 51: ...set up Polarity 300 25 Sequency 33 24 Primary rate 300 20 Failed Auto CT 300 29 Remove CT shorts at the CT terminal block Succesful Program filter mode Priority 300 01 Cos fi setpoint 300 35 Harmonic...

Page 52: ...the status when in status mode or up to two variables when not in status mode and in the event of an alarm warning On Warm Alarm OK Status Quick Menus Main Menu Alarm Log Status 1 1 0 0 0 0 0 C 111A...

Page 53: ...Bottom section Status 43 RPM 1 4 Hz Auto Remote Running Pwr card temp W29 2 9 5 44 A 25 3 kW 1 1 130BP074 10 Display contrast adjustment Press status and for darker display Press status and for bright...

Page 54: ...avigation keys The four navigation arrows are used to navigate between the different choices available in Quick Menu Main Menu and Alarm Log Use the keys to move the cursor OK is used for choosing a p...

Page 55: ...mary 0 0 CT Settings 1 1 0 00 300 2 Rating 20 0 A 0 130BB471 10 Figure 5 2 Display example Use the up down navigation keys to change the data value The up key increases the data value while the down k...

Page 56: ...ode 2 Press OK 3 Select Initialization for NLCP select 2 4 Press OK 5 Disconnect the power from the unit and wait for the display to turn off 6 Reconnect power and the unit is reset Note that first st...

Page 57: ...ly an isolated laptop as PC connection to the USB connector on the active filter 130BB747 10 61 68 39 42 50 53 54 Remove jumper to activate Safe Stop Max 24 Volt 12 13 12 19 27 29 32 33 20 Figure 5 5...

Page 58: ...the USB com port 2 Open MCT 10 Set up Software 3 Choose Open stored files will be shown 4 Open the appropriate file 5 Choose Write to drive All parameter settings are now transferred to the filter A s...

Page 59: ...How to Operate the Active F VLT Active Filter AAF 00x 5 8 MG 90 V2 22 VLT is a registered Danfoss trademark 5 5...

Page 60: ...utton Pressing Quick Menu the list indicates the different areas contained in the quick menu Efficient parameter set up for most applications The parameters can easily be set up for most the applicati...

Page 61: ...0 24 Display Line 3 Large can be viewed It is possible to store up to 120 samples in the memory for later reference Please notice that the parameters listed in the below table for Q6 only serve as ex...

Page 62: ...formation Parameter group containing filter information such as operating data hardware configuration and software versions 16 Data Readouts Parameter group for data readouts e g actual references vol...

Page 63: ...Bulgarian Part of Language package 3 Srpski Part of Language package 3 Romanian Part of Language package 3 Magyar Part of Language package 3 Czech Part of Language package 3 Polski Part of Language p...

Page 64: ...is possible to copy parameter settings between the set ups to enable quicker commissioning if similar parameter settings are required in different set ups How to Program VLT Active Filter AAF 00x MG 9...

Page 65: ...ion Edit the chosen set up from a range of sources LCP FC RS 485 FC USB or up to five Serial communication bus sites 0 12 This Set up Linked to Option Function To enable conflict free changes from one...

Page 66: ...38 Display Text 2 and 0 39 Display Text 3 for information on how to write display texts 0 20 Display Line 1 1 Small Option Function Select a variable for display in line 1 left position 0 None No disp...

Page 67: ...lay in line 3 Option Function 30121 Mains Frequency The options are the same as those listed in 0 20 Display Line 1 1 Small 0 25 My Personal Menu Range Function Application dependent 0 9999 Define up...

Page 68: ...rameters that are independent of the motor size The latter selection can be used to program several filters with the same function without disturbing motor data 4 File from MCO to LCP 5 File from LCP...

Page 69: ...999 Define the password for access to the quick menu via the Quick Menu key If 0 66 Access to Quick Menu w o Password is set to Full access 0 this parameter will be ignored 0 66 Access to Quick Menu w...

Page 70: ...t Time Based 32 29 33 Follower AF 1 Run Feedback 99 All Follower AF 2 Run Feedback 100 All Sleep 101 T18 T19 T27 T29 Functions dedicated to only one digital input are stated in the associated paramete...

Page 71: ...hout manual reset 4 PTC 1 Alarm Coasts unit when safe stop is activated Manual reset from LCP digital input or Serial communication bus Choice 4 is only available when the MCB 112 PTC thermistor card...

Page 72: ...table frequency drive is not detected 2 Unit ready The unit is ready for operation and applies a supply signal on the control board 5 30 Terminal 27 Digital Output Option Function 4 Enable no warning...

Page 73: ...l by using control word only 8 02 Control Word Source Select the source of the control word one of two serial interfaces or four installed options During initial power up the unit automatically sets t...

Page 74: ...up to 9 Multi set up and select the relevant link in 0 12 This Set up Linked to 8 05 End of Timeout Function Option Function Select the action after receiving a valid control word following a timeout...

Page 75: ...ation port or Serial communication bus option 2 Logic AND Activates Start command via the Serial communication bus serial communication port AND additionally via one of the digital inputs 3 Logic OR A...

Page 76: ...ion This parameter is active when 14 20 Reset Mode is set to Automatic reset 1 13 14 22 Operation Mode Option Function Use this parameter to specify normal operation to perform tests or to initialize...

Page 77: ...peration 1 Control card test 2 Initialisation 3 Boot mode 14 29 Service Code Range Function 0 2147483647 2147483647 For internal service only 14 50 RFI 1 Option Function 0 Off Select Off 0 only if the...

Page 78: ...s desired 6 7 2 15 1 Data Log Settings The Data Log enables continuous logging of up to 4 data sources 15 10 Logging Source at individual rates 15 11 Logging Interval A trigger event 15 12 Trigger Eve...

Page 79: ...ameter via the serial communication port or via the display 15 20 Historic Log Event Array 50 Range Function 0 0 255 View the event type of the logged events 15 21 Historic Log Value Array 50 Range Fu...

Page 80: ...unction 0 0 0 View the combined SW version or package version consisting of power SW and control SW 15 44 Ordered Typecode String Range Function 0 0 0 View the type code string used for re ordering th...

Page 81: ...pe code string for the option installed in slot C and a translation of the type code string for example for type code string CXXXX the translation is No option 15 75 Slot C0 Option SW Version Range Fu...

Page 82: ...nt Fault Source Range Function 0 0 8 Value indicates source of current faults including short circuit overcurrent and phase imbalance from left 16 49 Current Fault Source Range Function 1 4 Inverter 5...

Page 83: ...35 View the two byte control word CTW received from the bus master Interpretation of the control word depends on the Serial communication bus option installed and the control word profile selected in...

Page 84: ...etection using parameter 300 29 300 26 CT Placement Option Function 0 PCC 1 Load Current Enter the placement of the current transformers For a stand alone active filter installation the CTs will typic...

Page 85: ...o master Each follower unit has to be programmed at 300 41 Follower ID The follower IDs need to be different from one another 300 50 Enable Sleep Mode Option Function This parameter saves energy in li...

Page 86: ...lter does not measure the AC line voltage 301 12 Power Factor Range Function 0 00 0 00 2 00 View the power factor after compensation by the active filter 301 13 Cosphi Range Function 0 00 1 00 2 00 Vi...

Page 87: ...vailable Conversion index This number refers to a conversion figure used when writing or reading using an active filter Conv index 100 75 74 70 67 6 5 4 3 2 1 0 1 2 3 4 5 6 Conv factor 1 3 600 00 0 3...

Page 88: ...Line 1 3 Small 30120 All set ups TRUE Uint16 0 23 Display Line 2 Large 30100 All set ups TRUE Uint16 0 24 Display Line 3 Large 30121 All set ups TRUE Uint16 0 25 My Personal Menu ExpressionLimit 1 set...

Page 89: ...rminal 29 Digital Output 0 No operation All set ups x TRUE Uint8 5 4 Relays 5 40 Function Relay 0 No operation All set ups TRUE Uint8 5 41 On Delay Relay 0 30 s All set ups TRUE 2 Uint16 5 42 Off Dela...

Page 90: ...Operation Mode 0 Normal operation All set ups TRUE Uint8 14 23 Typecode Setting null 2 set ups FALSE Uint8 14 28 Production Settings 0 No action All set ups TRUE Uint8 14 29 Service Code 0 N A All set...

Page 91: ...All set ups FALSE 0 VisStr 20 15 43 Software Version 0 N A All set ups FALSE 0 VisStr 5 15 44 Ordered Typecode String 0 N A All set ups FALSE 0 VisStr 40 15 45 Actual Typecode String 0 N A All set up...

Page 92: ...set ups FALSE 2 Uint32 16 37 Inv Max Current ExpressionLimit All set ups FALSE 2 Uint32 16 39 Control Card Temp 32 F 0 C All set ups FALSE 100 Uint8 16 40 Logging Buffer Full 0 No All set ups TRUE Uin...

Page 93: ...L3 2 set ups FALSE Uint8 300 25 CT Polarity 0 Normal 2 set ups FALSE Uint8 300 26 CT Placement 1 Load Current 2 set ups FALSE Uint8 300 29 Start Auto CT Detection 0 Off All set ups FALSE Uint8 300 3 C...

Page 94: ...E 1 Uint16 301 11 Estimated THD of Voltage 0 0 All set ups Uint16 301 12 Power Factor 0 00 N A All set ups TRUE 2 Uint16 301 13 Cos phi 0 00 N A All set ups TRUE 2 Int16 301 14 Leftover Currents 0 0 A...

Page 95: ...How to Program VLT Active Filter AAF 00x 6 36 MG 90 V2 22 VLT is a registered Danfoss trademark 6 6...

Page 96: ...e It may be necessary to apply potential equalizing cables to maintain the same ground potential throughout the network particularly in instal lations where there are long lengths of cable To prevent...

Page 97: ...message A slave itself can never transmit without first being requested to do so and direct message transfer between the individual slaves is not possible Communications occur in the half duplex mode...

Page 98: ...ADR Two different address formats are used The address range of the filter is either 1 31 or 1 126 1 Address format 1 31 Bit 7 0 address format 1 31 active Bit 6 is not used Bit 5 1 Broadcast address...

Page 99: ...4 3 2 1 0 130BA268 10 PKE IND PWEhigh PWElow AK PNU Parameter commands and replies Parameter number Bits no 12 15 transfer parameter commands from master to slave and return processed slave responses...

Page 100: ...st read command the present parameter value in the PWE block is transferred and returned to the master If a parameter contains not a numerical value but several data options e g 0 01 Language where 0...

Page 101: ...value 100 A conversion factor of 0 1 means that the value transferred is multiplied by 0 1 The value 100 is thus perceived as 10 0 Examples 0s conversion index 0 0 00s conversion index 2 0ms conversio...

Page 102: ...meter is for fewer characters than the parameter stores the response is padded with spaces 7 4 5 Conversion Factor The different attributes for each parameter can be seen in the section on factory set...

Page 103: ...RS 485 Installation and set VLT Active Filter AAF 00x 7 8 MG 90 V2 22 VLT is a registered Danfoss trademark 7 7...

Page 104: ...distortion 10 with kept mitigation performance Reduced performance for higher pre distortion levels Harmonic Mitigation Performance THiD Best performance 4 Depending on filter vs distortion ratio Ind...

Page 105: ...umber 13 Max load 200mA The 24V DC supply is galvanically isolated from the supply voltage PELV but has the same potential as the analog and digital inputs and outputs Surroundings Vibration test 1 0...

Page 106: ...nnector on the unit or an isolated USB cable drive Protection and Features Temperature monitoring of the heatsink ensures that the active filter trips if the temperature reaches a predefined level An...

Page 107: ...80 ft 1 000 m the ambient temperature TAMB or max output current Iout should be derated in accordance with the diagram shown An alternative is to lower the ambient temperature at high altitudes and th...

Page 108: ...n alarm cannot be reset the reason may be that its cause has not been rectified or the alarm is trip locked see Table 9 1 Alarms that are trip locked offer additional protection means that the line po...

Page 109: ...Power Cont fault X 301 SC Cont Fault X 302 Cap Overcurrent X X 303 Cap Earth Fault X X 304 DC Overcurrent X X 305 Line Power Freq Limit X 308 Resistor temp X X 309 Line Power Ground Fault X X 311 Swit...

Page 110: ...ion 19 00080000 524288 Resistor temp Resistor temp Reserved 20 00100000 1048576 Line Power Ground Fault Line Power Ground Fault Reserved 21 00200000 2097152 Switch Freq Limit Reserved Reserved 22 0040...

Page 111: ...imit is dependent on the Adjustable frequency drive voltage rating The unit is still active WARNING ALARM 7 DC overvoltage If the intermediate circuit voltage exceeds the limit the Adjustable frequenc...

Page 112: ...the fan is running mounted The fan warning can be disabled in 14 53 Fan Monitor 0 Disabled Troubleshooting Check for proper fan operation Cycle power to the Adjustable frequency drive and make sure th...

Page 113: ...30 6 check the load connected to X30 6 or remove short circuit connection Check 5 32 Term X30 6 Digi Out MCB 101 For X30 7 check the load connected to X30 7 or remove short circuit connection Check 5...

Page 114: ...alarm log indicates which power module generated the alarm 1 left most inverter module 2 middle inverter module in F2 or F4 Adjustable frequency drive 2 right inverter module in F1 or F3 Adjustable f...

Page 115: ...LCL filter See for current trip points Troubleshooting Check that the nominal voltage parameter 300 10 is set correctly If the nominal voltage parameter is set to Auto change this parameter to nomina...

Page 116: ...Alarm 309 to be reported Troubleshooting Check the installation line power CTs and wiring Replace the AFC card ALARM 310 RTDC buffer full Contact supplier ALARM 311 Switch freq limit The average swit...

Page 117: ...www danfoss com drives MG90V222 130R0506 MG90V222 Rev 2011 06 17...

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