4.5.8 Auto CT Detection 4-25 4.5.9 Summation Transformers 4-26 4.5.10 Active Filter Operating with Capacitor Banks 4-27 4.5.11 Fuses 4-28 4.5.13 Control and CT Cable Routing 4-29 4.5.15 Unshielded Control Wires 4-30 ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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7.3 FC Protocol Message Framing Structure 7.3.1 Content of a Character (byte) 7.3.3 Message Length (LGE) 7.3.5 Data Control Byte (BCC) 7.3.6 The Data Field 7.3.8 Parameter Number (PNU) 7.3.9 Index (IND) 7.3.10 Parameter Value (PWE) ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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7.3.13 Process Words (PCD) 7.4 How to Access Parameters 7.4.1 Parameter Handling 7.4.3 IND 7.4.4 Text Blocks 7.4.5 Conversion Factor 7.4.6 Parameter Values 8 General Specifications 8.1 Electrical Data 8.1.1 Power Rating 9 Troubleshooting ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Contents VLT Active Filter AAF 00x ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
In no event shall Danfoss be liable for direct, indirect, special, incidental or consequential damages arising from the use, or the inability to use information contained in this manual, even if advised of the possibility of such damages.
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How to Read the Instruction... VLT Active Filter AAF 00x ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
Wait at least the amount of time indicated in Installation at high altitudes section General Warning above NOTE! At altitudes above 9843 ft [3 km], please contact Danfoss Failure to follow recommendations could result in death or Drives regarding PELV. serious injury.
• Disconnect the unit from line power whenever personal safety considerations make it necessary to avoid unintended start. • To avoid unintended start, always activate the [OFF] key before changing parameters. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
If harmonic compensation is chosen as the first priority, the filter will use the necessary current for harmonic reduction and energy for reactive current correction, though only if ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
Furthermore, you can establish a project list with several products and send it to a Danfoss sales representative. The configurator can be found on the global Internet site: www.danfoss.com/drives. Filters will automatically be delivered with a language package relevant to the region from which it is ordered.
AX: No A option B options 31-32 BX: No B option C option configu- 33-37 CFxxx: CO option occupied with ration active filter control card D options 38-39 DO: 24V backup DX: No Options ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Introduction to VLT Active ... VLT Active Filter AAF 00x ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
Cable routing and EMI conditions • Ensure the power source supplies the correct voltage and frequency • If the unit is without built-in fuses, ensure that the external fuses are rated correctly. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
Before unpacking the active filter it is recommended that it is located as close as possible to the final installation site. Keep the filter on the pallet and boxed, as long as possible to avoid scratches and dents. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
The lifting bar must be able to handle the weight of the unit. See Mechanical Dimensions for the weight of the different frame sizes. Maximum diameter for bar is 1 in [25mm]. The angle from the top of the unit to the lifting cable should be 60° or greater. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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 1853,6 1733,6 [73] [68] 1553,4 [61] 200.0 377,8 [15] Figure 4.4 Frame size D9, AAF05 ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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How to Install VLT Active Filter AAF 00x 2000 [78,78] 1498 2004.50 mm [59,06] 1491.35 mm [7,68] 491,19 493.23 mm [19,43] Figure 4.7 Frame size E9, AAF06 ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Filter Dimensions Height (in 68.2 [1732] 78.7 [2000] [mm]) Width (in 33 [840] 33 [840] [mm]) Depth (in 15 [380] 19.4 [494] [mm]) Max weight 646 [293] 776 [352] (lbs [kg]) ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Filter Dimensions Height (in 68.5 [1740] 78.7 [2000] [mm]) Width (in 23.6 [600] 23.6 [600] [mm]) Depth (in 15 [380] 19.4 [494] [mm]) Max weight 646 [293] 1010 [458] (lbs [kg]) ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
In addition, space in front of the unit must be considered to allow the panel door to be opened. [23] Figure 4.9 Space in front of IP21/IP54 enclosure type, frame size D13. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
All cable lugs/shoes must mount within the width of the terminal bus bar. 4.3.3 Terminal Locations - Frame size D Consider the following position of the terminals when designing for cables access. ® 4-10 MG.90.V2.22 - VLT is a registered Danfoss trademark...
Cooling can be obtained in different ways, by using the cooling ducts in the bottom and the top of the unit, by taking air in the back of the unit or by combining the cooling possibilities. ® MG.90.V2.22 - VLT is a registered Danfoss trademark 4-11...
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Prepare holes in the exceeded (power size-dependent) marked area on the drawing. Specific Control Card ambient temperature exceeded Once the fan is started, it will run for a minimum of 10 minutes. ® 4-12 MG.90.V2.22 - VLT is a registered Danfoss trademark...
(300MCM) 4x240mm (4x500MCM) 310A 240 mm (500MCM) 2*95mm (2*3/0) 4x240mm (4x500MCM) 400A 2*95mm (2*3/0) 2*150mm (2*300MCM) 4x240mm (8x900MCM) Table 4.2 Allowed Active Filter Line Cable with Typical Cable Manufacturer Data ® MG.90.V2.22 - VLT is a registered Danfoss trademark 4-15...
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Always ensure that proper fusing is done according to local regulations. Figure 4.23 Frame size D9 LCL line reactor Line power wire connection LCL capacitors LCL filter reactor CT wire connection point Input plate Fan/SMPS fuse Back channel fan ® 4-16 MG.90.V2.22 - VLT is a registered Danfoss trademark...
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How to Install VLT Active Filter AAF 00x Figure 4.24 Frame size D13 ® MG.90.V2.22 - VLT is a registered Danfoss trademark 4-17...
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CT - connection terminal Line power contactor FC card Power card AFC card Line power wire connection RFI (input option plate) Back channel Fuse/disconnect (line power option) LCL circuitry LCL circuitry DC capacitors ® 4-18 MG.90.V2.22 - VLT is a registered Danfoss trademark...
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VLT Active Filter AAF 00x Figure 4.25 Frame size E7 LCL line reactor Line power wire connection LCL capacitors LCL filter reactor CT wire connection point Input plate Fan/SMPS fuse Back channel fan ® MG.90.V2.22 - VLT is a registered Danfoss trademark 4-19...
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FC card Power card AFC card Line power wire connection RFI (input option plate) Back channel Fuse/disconnect (line power option) LCL circuitry LCL circuitry DC capacitors Table 4.3 Frames Sizes D13 ® 4-20 MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Below is the tightening torque required for the line power terminal: Frame size Torque Bolt size 19Nm 19Nm Figure 4.27 Example of Ground Terminal Position ® MG.90.V2.22 - VLT is a registered Danfoss trademark 4-21...
The burden of the CT depends on the wire type and the behavior of the filter. cable length between the CT and the filter CT connection terminal. The filter itself contributes with 2mΩ. ® 4-22 MG.90.V2.22 - VLT is a registered Danfoss trademark...
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If the flow direction is programmed that are corrected. incorrectly, the polarity can be changed via filter 300-25 CT ® MG.90.V2.22 - VLT is a registered Danfoss trademark 4-23...
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The filter can be programmed to have CTs installed on source side also called Point of Common Coupling (PCC) or alternatively at the load side. This must be programmed via 300-26 CT Placement ® 4-24 MG.90.V2.22 - VLT is a registered Danfoss trademark...
CT input. The performance is conducted on each phase individually and for several frequencies to ensure phase sequence and RMS are set correctly. The Auto CT detection is pending on the follow conditions: ® MG.90.V2.22 - VLT is a registered Danfoss trademark 4-25...
If that is not possible, the current transformers should be installed in a way that they do not measure both needed current compensation and the capacitor corrected current. ® MG.90.V2.22 - VLT is a registered Danfoss trademark 4-27...
Short-circuit protection: The active filter must be protected against short-circuit to avoid electrical or fire hazard. Danfoss recommends using the fuses mentioned below to protect service personnel and equipment in case of an internal failure in the device. Overcurrent protection Figure 4.38 CT installation does not measure capacitor current.
Connections are made to the terminal block below the active filter card. The cable must be placed in the provided path inside the filter and tied down with other control wires (see Figure 4.40 ). ® MG.90.V2.22 - VLT is a registered Danfoss trademark 4-29...
1) Max. 0.015 x 0.1 in [0.4 x 2.5 mm] supply can be applied. Terminal No. Function 100, 101 Auxiliary supply S, T 102, 103 Internal supply S, T ® 4-30 MG.90.V2.22 - VLT is a registered Danfoss trademark...
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100 and 101. A 5 Amp fuse should be used for protection. In UL applications this should be LittelFuse KLK-5 or equivalent. ® MG.90.V2.22 - VLT is a registered Danfoss trademark 4-31...
Terminals L1, L2 and L3 (91,92,93 and 95) are grid connection terminals Terminal 37 is the input to be used for Safe Stop. Grey-scaled terminals are already used for internal operation or are not configurable via software of the active filter. ® 4-32 MG.90.V2.22 - VLT is a registered Danfoss trademark...
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3 9 4 3 5 4 Digital input wiring 1 2 1 9 2 7 3 3 2 Remember to connect the shields in a proper way to ensure optimum electrical immunity. ® MG.90.V2.22 - VLT is a registered Danfoss trademark 4-33...
CT VA rating. [M] = ([VA]-1,25) / (25*[Ohm/M]) See 4.5.1 Power Connections for more details. ® 4-34 MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Follower Selection is set to follower. same compensation and priority mode. Also make sure all CT settings have been set identically in all parallel connection units, and all has same hardware secondary CT configuration. ® MG.90.V2.22 - VLT is a registered Danfoss trademark 4-35...
Filter supports all standard CTs with 1A or 5A secondary parameters. After CT detection, the filter is ready to start rating. operation. CT detection failed: Danfoss CT auto detection support most standard CTs. The auto CT detection will not succeed if: • CTs are not wired correctly •...
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300-20 CT Primary Rating and the filter is ready for operation. To set-up the filter compensation mode and priority, please consult the 300-24 phase sequence chapter How to program. 300-25 CT polarity ® MG.90.V2.22 - VLT is a registered Danfoss trademark 4-37...
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- Record THDv and THDi improvements Performance available - RMS - True PF and displacement PF Check that THDi read out Check CT value is reduced to 5-9% settings again when lter is turned on ® 4-38 MG.90.V2.22 - VLT is a registered Danfoss trademark...
The values/ measurements to be displayed can be defined via parameters 0-20 Display Line 1.1 Small to 0-24 Display Line 3 Large, which can be accessed via [QUICK MENU], "Q3 ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Password, 0-61 Access to Main Menu w/o Password, Middle section 2.9% 0-65 Quick Menu Password or 0-66 Access to Quick Menu w/o Password. ! Pwr.card temp (W29) Bottom section Auto Remote Running ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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[Quick Menu], [Main Menu] and [Alarm Log]. Use the keys to move the cursor. [OK] is used for choosing a parameter marked by the cursor and for enabling the change of a parameter. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
Use the [◄] and [►] navigation keys to move the up is only possible if CTs are installed at Point of cursor horizontally. Common Coupling PCC (towards the transformer). CT of LHD is preset from factory. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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RS-485 standard Select “Initialization” (for NLCP select “2”) interface. Terminal 68 is connected to the P signal (TX+, RX Press [OK] +), while terminal 69 is connected to the N signal (TX-,RX-). ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Software software help menu for further information. MCT 10 Set-up Software MCT 10 Set-up Software has been designed as an easy to use interactive tool for setting parameters in our active filters. The software can be downloaded from the Danfoss internet site http://www.Danfoss.com/BusinessAreas/Drives- Solutions/Softwaredownload/DDPC+Software +Program.htm.
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Ordering number: Please order the CD containing MCT 10 Set-up Software using code number 130B1000. MCT 10 Set-up Software can also be downloaded from the Danfoss Internet: WWW.DANFOSS.COM, Business Area: Motion Controls. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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How to Operate the Active F... VLT Active Filter AAF 00x ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
Line power frequency 15-51 Frequency Converter Serial Efficient parameter set-up for most applications Number The parameters can easily be set up for most the applications only by using the [Quick Menu]. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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120 samples in the memory for later reference. Please notice that the parameters listed in the below table for Q6 only serve as examples as they will vary depending on the programming of the particular active filter. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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After selecting a parameter group, choose a parameter with the navigation keys. The middle section on the GLCP display shows the parameter number and name, as well as the selected parameter value. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
Japanese Part of Language package 2 filter operation in its Active set-up which can be a different Turkish Part of Language package 4 ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Using 0-51 Set-up Copy, it is possible to copy parameter settings between the set-ups to enable quicker commissioning if similar parameter settings are required in different set-ups. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Factory setup Cannot be changed. It contains the Danfoss during operation. The link will ensure the data set, and can be used as a data source proper synchronization of the ‘not changeable when returning the other set-ups to a during operation’...
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Control word (CTW) received from the bus master. [1690] Alarm Word One or more alarms in a Hex code. [1691] Alarm Word 2 One or more alarms in a Hex code. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Password Avoids unauthorized stop. If 0-41 [Off] Key on LCP The options are the same as listed for is included in the Quick Menu, then define the 0-20 Display Line 1.1 Small. password in 0-65 Quick Menu Password. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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The latter selection can be used to program several filters with the same function without disturbing motor data. File from MCO to File from LCP to Data from DYN to ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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LCP: No Prevents unauthorized viewing and editing access of quick menu parameters. Bus: Read Read only functions for quick menu only parameters on Serial communication bus and/ or FC standard bus. ® 6-10 MG.90.V2.22 - VLT is a registered Danfoss trademark...
Follower AF Do not program this setting. It is done #1 Run automatically for paralleling. See Feedback 300-40 Master Follower Selection and 300-41 Follower ID for more infomation about paralleling. ® MG.90.V2.22 - VLT is a registered Danfoss trademark 6-11...
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5-18 Terminal X30/4 Digital Input thermistor card is connected. Option: Function: Choices 4–9 are only available when the MCB 112 PTC No operation Functions are described under 5-1* Digital thermistor card is connected. Inputs ® 6-12 MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Adjustable frequency drive is not detected. Option: Function: Unit ready The unit is ready for operation and No operation applies a supply signal on the control [128] SC contactor board. [129] Mains contactor ® MG.90.V2.22 - VLT is a registered Danfoss trademark 6-13...
If this time is exceeded, it indicates that the serial communication has stopped. The function selected in 8-04 Control Word Timeout Function will then be carried ® 6-14 MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Function: 115200 Baud Select the action after receiving a valid control word following a timeout. This parameter is active only when 8-04 Control Timeout Function is set to [Set-up 1-4]. ® MG.90.V2.22 - VLT is a registered Danfoss trademark 6-15...
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Activates Start command via the Serial communication bus/serial communication port OR via one of the digital inputs. NOTE! This parameter is active only when 8-01 Control Site is set to [0] Digital and control word. ® 6-16 MG.90.V2.22 - VLT is a registered Danfoss trademark...
18 - 27 - 32; 19 - 29 - 33; 42 - 53 - 54 the automatic reset function. This parameter is active when 14-20 Reset Mode is set to Automatic reset [1] - [13]. ® MG.90.V2.22 - VLT is a registered Danfoss trademark 6-17...
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RFI filter circuit are cut-out to reduce the ground capacity currents. On Select On [1] to ensure that the unit complies with EMC standards. 14-54 Bus Partner Range: Function: [0 - 126 ] ® 6-18 MG.90.V2.22 - VLT is a registered Danfoss trademark...
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 ® MG.90.V2.22 - VLT is a registered Danfoss trademark 6-19...
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10 fault logs can be viewed. [0] is the most recent logged data, and [9] the oldest. Error codes, values and time stamp can be viewed for all logged data. ® 6-20 MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Range: Function: [0 - 0 ] View the combined SW version (or ‘package [0 - 0 ] View the installed option type. version’) consisting of power SW and control SW. ® MG.90.V2.22 - VLT is a registered Danfoss trademark 6-21...
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'CXXXX' the translation is 'No option'. 15-75 Slot C0 Option SW Version Range: Function: [0 - 0 ] View the software version for the option installed in slot C. ® 6-22 MG.90.V2.22 - VLT is a registered Danfoss trademark...
15-13 Logging Mode is set to Log always [0]. 16-49 Current Fault Source Range: Function: [0 - 8 ] Value indicates source of current faults including short circuit, overcurrent, and phase imbalance (from left): ® MG.90.V2.22 - VLT is a registered Danfoss trademark 6-23...
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[0 - 65535 ] 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 8-10 Control Profile. ® 6-24 MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Option: Function: Follower Normal Not Paralleled Inverse Enter the polarity of the current transformers. Alternatively, this value can be determined by performing an auto CT detection using parameter 300-29. ® MG.90.V2.22 - VLT is a registered Danfoss trademark 6-25...
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5 sec. to avoid contact bounce. [0] Disabled Default filter does not use the sleep mode function. [1] Enabled The filter enters sleep mode at light loads or if triggered from external. ® 6-26 MG.90.V2.22 - VLT is a registered Danfoss trademark...
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[-1.00 - View the displacement power factor, after 2.00 ] compensation by the active filter. Positive numbers indicate a leading power factor, while negative numbers indicate a lagging power factor. ® MG.90.V2.22 - VLT is a registered Danfoss trademark 6-27...
Uint32 16-92 Warning Word 0 N/A All set-ups FALSE Uint32 16-93 Warning Word 2 0 N/A All set-ups FALSE Uint32 16-94 Ext. Status Word 0 N/A All set-ups FALSE Uint32 ® MG.90.V2.22 - VLT is a registered Danfoss trademark 6-33...
301-2* Line Power Status 301-20 Line Power Current [A] All set-ups TRUE Int32 301-21 Line Power Frequency 0 Hz All set-ups TRUE Uint8 301-22 Fund. Line Power Current [A] All set-ups TRUE Int32 ® MG.90.V2.22 - VLT is a registered Danfoss trademark 6-35...
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How to Program VLT Active Filter AAF 00x ® 6-36 MG.90.V2.22 - VLT is a registered Danfoss trademark...
7.1.3 RS-485 Bus Termination Shielded, twisted-pair cables are recommended in order to reduce noise between conductors. Use the terminator DIP switch on the main control board of the unit to terminate the RS-485 bus. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
VLT Active Filter AAF 00x NOTE! The FC protocol, also referred to as FC bus or standard bus, is the Danfoss standard Serial communication bus. It The factory setting for the DIP switch is OFF. defines an access technique according to the master-slave principle for communications via a serial bus.
The structure of data blocks depends on the type of message. There are three message types, and the type applies for both control message (master=>slave) and response messages (slave=>master). The three types of message are: ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Bits no. 12-15 transfer parameter commands from master word) to slave and return processed slave responses to the master. Command cannot be performed text transferred If the command cannot be performed, the slave sends this response: ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
0-01 Language where [0] corresponds to English, and [4] corresponds to Danish, select the data value by entering the value in the PWE block. See Example - ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
Since a parameter value can only be transferred as a whole number, a conversion factor must be used to transfer decimals. Please refer to the Parameters section. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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RS-485 Installation and set... VLT Active Filter AAF 00x ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
Minimum cross-section to control terminals 0.25mm CT terminals specification: Necessary CT number 3 (one for each phase) AAF's burden equals 2mΩ Secondary current rating 1A or 5A (hardware set-up) Accuracy Class 0.5 or better ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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EN 61800-3, EN 61000-6-3/4, EN 55011, IEC 61800-3 EN 61800-3, EN 61000-6-1/2, EMC standards, Immunity EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6 Control card performance: Scan interval : 5ms ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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The active filter monitors the line power current as well as internal currents to ensure that current levels do not reach critical levels. Inf the current exceeds a critical level, the filter trips. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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1500 2000 2500 3000 Altitude (meters above sea level)* Altitude (meters above sea level)* Derating of output current versus altitude at T for frame sizes D, E and F. AMB, MAX ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
DC undervoltage Overcurrent Ground fault Hardware mismatch Short Circuit Control word timeout 8-04 Internal Fan Fault External Fan Fault 14-53 Heatsink temp Inrush fault Serial communication bus fault Option fault Internal fault ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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A trip lock is an action when an alarm occurs, which may cause damage to the device or connected parts. A trip lock situation can only be reset by power cycling. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Word, 16-92 Warning Word and 16-94 Ext. Status Word. “Reserved” means that the bit is not guaranteed to be any particular value. Reserved bits should not be used for any purpose. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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ALARM 15, Hardware mismatch If the intermediate circuit voltage exceeds the limit, the A fitted option is not operational with the present control Adjustable frequency drive trips after a time. board hardware or software. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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Check that the option is properly installed Check the sensors on the heatsink and control Check for loose or missing wiring card. It may be necessary to contact your Danfoss supplier or service department. Note the code number for further troubleshooting directions. ®...
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Check 5-33 Term X30/7 Digi Out Parameter value outside of min/max limits (MCB 101). 1024-1284 Internal fault. Contact your Danfoss supplier or the ALARM 43, Ext. supply Danfoss Service Department. MCB 113 Ext. Relay Option is mounted without ext. 24 V...
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Adjustable frequency drive. A component in the Adjustable frequency drive has been 2 = right inverter module in F1 or F3 Adjustable replaced. Reset the Adjustable frequency drive for normal frequency drivee. operation. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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See for current trip points. currents as input to the PLL. The PLL is not tolerant of incorrect wiring or placement of the AC capacitor current transducers. ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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The ground fault must be detected at every sample during a period of 400ms, for Alarm 309 to be reported. Troubleshooting: Check the installation line power CTs and wiring Replace the AFC card ® MG.90.V2.22 - VLT is a registered Danfoss trademark...
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