4.1.12 FC 51 De-coupling Plate Mounting Instruction for M4 and M5 4.1.13 FC 51 DIN Rail Kit Mounting Instruction 4.2 Special Condition 4.2.1 Purpose of Derating 4.2.2 Derating for Ambient Temperature ® MG02K102 - VLT is a registered Danfoss trademark...
Page 3
7 Programming 7.1 How to Programme 7.1.1 Programming with MCT-10 Set-up Software 7.1.2 Programming with the LCP 11 or LCP 12 7.2 Status Menu 7.3 Quick Menu 7.4 Quick Menu Parameters ® MG02K102 - VLT is a registered Danfoss trademark...
Page 4
8.8.10 Function Codes Supported by Modbus RTU 8.8.11 Modbus Exception Codes 8.9 How to Access Parameters 8.9.1 Parameter Handling 8.9.2 Storage of Data 8.9.3 IND 8.9.4 Text Blocks 8.9.5 Conversion Factor 8.9.6 Parameter Values ® MG02K102 - VLT is a registered Danfoss trademark...
Page 5
Contents VLT Micro Drive Design Guide 8.10 Examples 8.11 Danfoss FC Control Profile 9 Specifications 9.1 Specifications Index ® MG02K102 - VLT is a registered Danfoss trademark...
15-43 Software Version. or fitness for a particular purpose. In no event shall Danfoss be liable for direct, indirect, special, incidental, or consequential damages arising out of the use, or the inability to use information contained in this manual, even if advised of the possibility of such damages.
Rated Inverter Output Current Revolutions Per Minute Regenerative terminals Regen Second sec. Synchronous Motor Speed Torque limit Volts The maximum output current VLT,MAX The rated output current supplied by the VLT,N frequency converter ® MG02K102 - VLT is a registered Danfoss trademark...
A defined preset reference to be set from -100% to +100% The rated motor current (nameplate data). of the reference range. Selection of eight preset references via the digital terminals. The rated motor speed (nameplate data). ® MG02K102 - VLT is a registered Danfoss trademark...
Page 9
An intermittent duty rating refers to a sequence of duty frequency converter is protecting the motor, process or cycles. Each cycle consists of an on-load and an off-load mechanism. Restart is prevented until the cause of the ® MG02K102 - VLT is a registered Danfoss trademark...
Page 10
I RMS = I 1 2 + I 5 2 + I 7 2 + . . + I n 2 In addition, a high-power factor indicates that the different harmonic currents are low. ® MG02K102 - VLT is a registered Danfoss trademark...
Safety and Conformity VLT Micro Drive Design Guide 2 Safety and Conformity Installation at high altitudes CAUTION 2.1 Safety At altitudes above 2km, please contact Danfoss regarding 2.1.1 Safety Note PELV. WARNING WARNING DANGEROUS VOLTAGE UNINTENDED START The voltage of the frequency converter is dangerous The motor can be brought to a stop by means of whenever connected to mains.
50 - 1000V AC and the 75 - 1500V DC voltage EMC directive either by using CE labeled ranges. Danfoss CE-labels in accordance with the directive components or by testing the EMC of the system. and issues a declaration of conformity upon request.
As an aid to the installer, Danfoss has the life of the frequency converter. prepared EMC installation guidelines for the Power Drive system.
Page 14
= Rated flow = Rated power = Reduced flow = Reduced power H = Pressure n = Speed regulation = Rated pressure = Rated speed = Reduced pressure = Reduced speed ® MG02K102 - VLT is a registered Danfoss trademark...
Page 15
Costlier installation Illustration 2.4 The Three Common Energy Saving Systems 2.5.4 Comparison of Energy Savings The Danfoss frequency converter solution offers major savings compared with traditional energy saving solutions. This is because the frequency converter is able to control Discharge Damper Solution...
Page 16
Simple control of process (Flow, Level or Pressure) utilizing the built-in PI control. (mwg) 1650rpm 1350rpm 1050rpm 750rpm (kW) shaft 1650rpm 1350rpm 1050rpm 750rpm ® MG02K102 - VLT is a registered Danfoss trademark...
Page 17
2.5.9 Without a Frequency Converter D.D.C. Direct Digital Control E.M.S. Energy Management system V.A.V. Variable Air Volume Sensor P Pressure Sensor T Temperature Table 2.1 Fan System made in the Traditional Way ® MG02K102 - VLT is a registered Danfoss trademark...
Page 18
Duct Pump Pump Local Main D.D.C. B.M.S Pressure control control 0-10V 0/4-20mA Control Control temperature temperature 0-10V 0-10V 0/4-20mA 0/4-20mA Mains Mains Mains Illustration 2.6 Fan System Controlled by Frequency Converters ® MG02K102 - VLT is a registered Danfoss trademark...
8-5* (serial communication). Hand Off Auto Reset Local reference will force the configuration mode to open loop, independent on the setting of 1-00 Configuration Mode. Local Reference will be restored at power-down. ® MG02K102 - VLT is a registered Danfoss trademark...
Page 20
While the default values for the frequency converter’s Closed Loop controller will often provide satisfactory performance, the control of the system can often be optimized by adjusting some of the Closed Loop controller’s parameters. ® MG02K102 - VLT is a registered Danfoss trademark...
Page 21
Where X is the external reference, the preset reference or the sum of these and Y is 3-14 Preset Relative Reference in [%]. If Y, 3-14 Preset Relative Reference is set to 0%, the reference will not be affected by the scaling. ® MG02K102 - VLT is a registered Danfoss trademark...
Avoid placing cables with a sensitive signal level alongside motor and brake cables. Radio interference higher than 50MHz (airborne) is especially generated by the control electronics. Please see for more information on EMC. ® MG02K102 - VLT is a registered Danfoss trademark...
≤ 2.2kW. Single phase, 230V ≤ 7.5kW. Up to 500VAC, three phase 11kW to 22kW. Up to 500VAC, three phase Table 3.2 EMC Test Result ® MG02K102 - VLT is a registered Danfoss trademark...
PELV (Protective Extra Low Voltage) (Does not apply to grounded Delta leg above 440V). Installation at high altitude: At altitudes above 2km, please contact Danfoss regarding Galvanic (ensured) isolation is obtained by fulfilling PELV. requirements for higher isolation and by providing the relevant creapage/clearance distances.
Page 25
See also Application Note Protection against Electrical Hazards MN90G202. Protective earthing of the frequency converter and the use of RCDs must always follow national and local regulations. ® MG02K102 - VLT is a registered Danfoss trademark...
The calculated temperature is visible as a read out parameter in 16-18 Motor Thermal in the FC 51 Micro Drive Programming Guide, MG02CXYY. ® MG02K102 - VLT is a registered Danfoss trademark...
For detailed information on programming, please see Programming Guide MG02CXYY, . The frequency converter can also be programmed from a PC via RS485 com-port by installing the MCT 10 Set-up Software. This software can either be ordered using code number 130B1000 or downloaded from the Danfoss Web site: www.danfoss.com/BusinessAreas/DrivesSolutions/softwaredownload Illustration 4.1 Description of LCP Buttons and Display...
The LCP can be moved to the front of a cabinet by using the remote build-in kit. The enclosure is the IP55. Technical data Enclosure: IP55 front Max. cable length between and unit: Communication std: RS485 Ordering no. 132B0201 ® MG02K102 - VLT is a registered Danfoss trademark...
4.1.3 FC 51 Remote Mounting Kit Mounting Instruction Step 1 Step 2 Fit gasket on LCP in the frequency converter. Place LCP on panel - see dimensions of hole on drawing. ® MG02K102 - VLT is a registered Danfoss trademark...
Page 30
NOTE! Use the provided thread cutting screws to fasten NOTE! Use the provided thread cutting screws to fasten connector to the frequency converter. Tightening torque: connector to LCP. Tightening torque: 1.3Nm. 1.3Nm. ® MG02K102 - VLT is a registered Danfoss trademark...
Mount metal plate on frequency converter and tighten the Fit bottom cover on frequency converter and tighten screws. Tightening torque: 2 Nm. screw. Conduit sizes 4 x ½” 5 x ½ “ 2 x ½” 3 x 3/4” ® MG02K102 - VLT is a registered Danfoss trademark...
Mount metal plate on frequency converter and tighten the Fit bottom cover on frequency converter and tighten screws. Tightening torque: 2 Nm. screw. Conduit sizes: 3 x ½” 3 x 1“ ® MG02K102 - VLT is a registered Danfoss trademark...
Step 4 Fit bottom cover on frequency converter and tighten screw. NOTE! IP21 is only achieved with LCP11 or LCP12 mounted. Step 2 Remove knockouts on metal plate and fit rubber grommets. ® MG02K102 - VLT is a registered Danfoss trademark...
Mount metal plate on frequency converter and fasten with VLT Micro frequency converter FC 51 mounted with de- two screws. Tightening torque: 2 Nm. coupling plate. Step 2 Mount bracket on de-coupling plate. ® MG02K102 - VLT is a registered Danfoss trademark...
4.1.11 FC 51 De-coupling Plate Mounting Instruction for M3 Step 1 Step 2 Mount de-coupling plate on frequency converter and VLT Micro frequency converter FC 51 mounted with de- fasten with two screws. Tightening torque: 2 Nm. coupling plate. ® MG02K102 - VLT is a registered Danfoss trademark...
Mount metal plate on frequency converter and fasten with Mount bracket on de-coupling plate. two screws. Tightening torque: 2 Nm. Step 2 VLT Micro frequency converter FC 51 mounted with de- coupling plate. ® MG02K102 - VLT is a registered Danfoss trademark...
4.1.13 FC 51 DIN Rail Kit Mounting Instruction Step 1 Step 2 Mount plastic part on frequency converter. Fit frequency converter on DIN rail (Din Rail kit is only for M1 and M2). ® MG02K102 - VLT is a registered Danfoss trademark...
See for details, how to read the Type code string. Illustration 5.1 This example shows the identification sticker. ® MG02K102 - VLT is a registered Danfoss trademark...
X. No coated PCB Mains option X: No mains option Adaptation A X: No adaptation Adaptation B X: No adaptation Software release 24-27 SXXX: Latest release - std. software Table 5.1 Type code description ® MG02K102 - VLT is a registered Danfoss trademark...
130B2531 Line Filter MCC 107 for 132F0026 130B2528 Line Filter MCC 107 for 132F0028 130B2527 Line Filter MCC 107 for 132F0030 Danfoss Line Filters and brake resistors are available upon request. ® MG02K102 - VLT is a registered Danfoss trademark...
Check that the packaging contains the following: • ® Micro Drive FC 51 FC 51 • Quick Guide Optional: LCP and/or de-coupling plate. Illustration 6.1 Content of box ® MG02K102 - VLT is a registered Danfoss trademark...
Wait for 4 minutes (M1, M2 and M3) and 15 minutes (M4 and M5) for discharge of the DC-link. Disconnect DC bus terminals and brake terminals (if present). Remove motor cable. ® MG02K102 - VLT is a registered Danfoss trademark...
(symmetrical), 480V maximum. Non UL compliance: If UL/cUL is not to be complied with, Danfoss recommends using the fuses mentioned in the below table, which will ensure compliance with EN50178/IEC61800-5-1: In case of malfunction, not following the fuse recommendation may result in damage to the frequency converter and the installation.
Illustration 6.4 Mounting of earth cable and mains wires For 3-phase connection, connect wires to all three terminals. For single-phase connection, connect wires to terminals L1/L and L3/N. Illustration 6.5 Three-phase and single-phase wire connections ® MG02K102 - VLT is a registered Danfoss trademark...
- may increase, and the cable Illustration 6.7 Mounting of earth cable and motor wires. length must be reduced correspondingly. For EMC correct installation, use optional de-coupling plate, see chapter 5.2 Options for VLT Micro Drive. ® MG02K102 - VLT is a registered Danfoss trademark...
Page 51
• Do not use unscreened/unarmoured motor cables in the installation cabinets. 6.8.4 EMC-Correct Electrical Installation General points to be observed to ensure EMC-correct electrical installation. ® MG02K102 - VLT is a registered Danfoss trademark...
Page 52
Motor, 3 phases and Reinforced protective earth Protective earth Illustration 6.9 EMC-correct Electrical Installation For North America use metal conduits instead of shielded cables. ® MG02K102 - VLT is a registered Danfoss trademark...
How to Install VLT Micro Drive Design Guide 6.9.1 Use of EMC-Correct Cables Danfoss recommends braided screened/armoured cables to optimise EMC immunity of the control cables and the EMC emission from the motor cables. The ability of a cable to reduce the in- and outgoing...
Page 54
Aluminium-clad with copper wire. Twisted copper wire or armoured steel wire cable. Single-layer braided copper wire with varying percentage screen coverage. This is the typical Danfoss reference cable. Double-layer braided copper wire. Twin layer of braided copper wire with a 0,01 100 MHz magnetic, screened/armoured intermediate layer.
Page 55
If RCD relays are used, local regulations must be observed. Relays must be suitable for protection of 3-phase equipment with a bridge rectifier and for a brief discharge on power-up see section 3.4 Earth Leakage Current for further information. ® MG02K102 - VLT is a registered Danfoss trademark...
* Brake (BR+ and BR-) are not applicable for frame M1. Brake resistors are available from Danfoss. Improved power factor and EMC performance can be achieved by installing optional Danfoss line filters. Danfoss power filters can also be used for load sharing.
20, 39, and 55. This will avoid ground current interference among groups. For example, it avoids switching on digital inputs disturbing analog inputs. NOTE Control cables must be screened/armoured. ® MG02K102 - VLT is a registered Danfoss trademark...
ON = Terminal 53 0/4 - 20 mA * = default setting Table 6.5 Settings for S200 Switches 1-4 Illustration 6.12 Overview of control terminals in PNP-configu- ration and factory setting. Illustration 6.14 S200 Switches 1-4. ® MG02K102 - VLT is a registered Danfoss trademark...
AMT is in progress. Stop the AMT during operation Press the [OFF] key - the frequency converter enters into alarm mode and the display shows that the AMT was terminated by the user. ® MG02K102 - VLT is a registered Danfoss trademark...
Page 60
This number along with the description of the alarm will assist you in troubleshooting. If you contact Danfoss Service, make sure to mention number and alarm description. Unsuccessful AMT is often caused by incorrectly registered motor name plate data or too big difference between the motor power size and the frequency converter power size.
Provide further motor protection by e.g. thermistors in each motor or individual thermal relays. LC filter (Circuit breakers are not suitable as protection). ® MG02K102 - VLT is a registered Danfoss trademark...
"ON". modules For more information, see the paragraph Switches S201, The following modules are included in the software S202, and S801. package: Communication protocol must be set to 8-30 Protocol. ® MG02K102 - VLT is a registered Danfoss trademark...
3.5 mA. To ensure a good mechanical connection from the earth cable to the earth connection (terminal 95), the cable cross-section must be at least 10 mm or 2 rated earth wires terminated separately. ® MG02K102 - VLT is a registered Danfoss trademark...
RS485 com-port by installing the MCT-10 Set-up Software. This software can either be ordered using code number 130B1000 or downloaded from the Danfoss Web site: www.danfoss.com, Business Area: Motion Controls. Please refer to manual MG10RXYY. Illustration 7.2 LCP 11 without Potentiometer 7.1.2 Programming with the LCP 11 or LCP...
Most applications can be run by setting the parameters in the Quick Menus. Main Menu: Displays Main Menu parameters and their settings. All Illustration 7.8 Indicating Status Mode parameters can be accessed and edited here. ® MG02K102 - VLT is a registered Danfoss trademark...
1-22 Motor Voltage (U Range: Function: 230/400 V [50 - 999 V] Enter motor voltage from nameplate data. 1-23 Motor Frequency (f Range: Function: 50 Hz [20-400 Hz] Enter motor frequency from nameplate data. ® MG02K102 - VLT is a registered Danfoss trademark...
Page 67
Enter ramp-up time from 0 Hz to Range: Function: related 3600.00 s] rated motor frequency (f ) set in [0.00 - 19.99 mA] Normally set to 0 or 4 mA. 1-23 Motor Frequency. ® MG02K102 - VLT is a registered Danfoss trademark...
Enter the P-factor. 7-34 Process PI Integral Time Range: Function: [0.10 - 9999.00 s] Enter the I-factor. 7-38 Process Feed Forward Factor Range: Function: [0 - 400%] Only applicable with changing set-points. ® MG02K102 - VLT is a registered Danfoss trademark...
Once the set-up of a frequency converter is complete, Default Settings in two Ways Danfoss recommends that you store the data in the LCP or on a PC via MCT 10 Set-up Software tool. Recommended initialisation (via 14-22 Operation Mode) Data storage in LCP.
69 (N-) on the main control board of the frequency converter. Connect the cable screen to the cable clamps. NOTE Screened, twisted-pair cables are recommended in order to reduce noise between conductors. 61 68 69 ® MG02K102 - VLT is a registered Danfoss trademark...
This function is for overcoming modem turnaround delays. 8-36 Maximum Specify a maximum delay time between Response Delay transmitting a request and receiving a response. Min.200mm 90° crossing Brake resistor ® MG02K102 - VLT is a registered Danfoss trademark...
8.2 FC Protocol Overview 8.3 Network Configuration The FC protocol, also referred to as FC bus or Standard bus, is the Danfoss standard fieldbus. It defines an access 8.3.1 Frequency Converter Set-up technique according to the master-slave principle for communications via a serial bus.
The parameter block is used to transfer parameters between master and slave. The data block is made up of 12 bytes (6 words) and also contains the process block. PCD1 PCD2 high Text block The text block is used to read or write texts via the data block. PCD1 PCD2 ® MG02K102 - VLT is a registered Danfoss trademark...
Page 74
If a parameter - and issues the following fault report in the parameter contains several data options, e.g. 0-01 Language, select value: the data value by entering the value in the PWE block. ® MG02K102 - VLT is a registered Danfoss trademark...
Note: 4-14 Motor Speed High Limit [Hz] is a single word, and the parameter command for write in EEPROM is “E”. Parameter number 4-14 is 19E in hexadecimal. The response from the slave to the master is: ® MG02K102 - VLT is a registered Danfoss trademark...
8.6.1 Assumptions 8.6.4 Frequency Converter with Modbus Danfoss assumes that the installed controller supports the interfaces in this document, and strictly observe all requirements and limitations stipulated in the controller The frequency converter communicates in Modbus RTU and frequency converter.
The function field of a message frame contains 8 bits. Valid device is addressed (or all devices, if the message is codes are in the range of 1-FF. Function fields are used to send messages between master and slave. When a ® MG02K102 - VLT is a registered Danfoss trademark...
For example: The coil known as ‘coil 1’ in a programmable controller is addressed as coil 0000 in the data address field of a Modbus message. Coil 127 decimal is addressed as coil 007EHEX (126 decimal). ® MG02K102 - VLT is a registered Danfoss trademark...
Page 79
Value written in Modbus RTU telegram must be one or less than register number. E.g. Read Modbus Register 1 by writing value 0 in telegram. * Used to specify the index number to be used when accessing an indexed parameter. ® MG02K102 - VLT is a registered Danfoss trademark...
01 (frequency converter address) Function 05 (write single coil) Coil Address HI Coil Address LO 40 (64 decimal) Coil 65 Force Data HI Force Data LO 00 (FF 00 = ON) Error Check (CRC) ® MG02K102 - VLT is a registered Danfoss trademark...
Page 82
Error Check (CRC) The query message specifies the register reference to be preset. Register addresses start at zero, i.e. register 1 is addressed as 0. Example: Write to 1-00 Configuration Mode, register 1000. ® MG02K102 - VLT is a registered Danfoss trademark...
No. of registers LO Error Check (CRC) Error Check (CRC) Response 8.11 Danfoss FC Control Profile The normal response is an echo of the query, returned 8.11.1 Control Word According to FC after the register contents have been passed. Profile (8-10 Protocol = FC profile)
Page 84
Digital input (5-10 Terminal 18 Digital Input to 5-13 Terminal 29 Digital Input) programmed to DC braking, Coasting stop, or Reset and coasting stop. The function is only possible when Multi Set-Ups is selected in 0-10 Active Set-up. ® MG02K102 - VLT is a registered Danfoss trademark...
Page 85
Bit 02, Coasting stop Bit 02 = ’0’: The frequency converter releases the motor. Bit 02 = ’1’: The frequency converter starts the motor with a start command. ® MG02K102 - VLT is a registered Danfoss trademark...
Page 86
(0hex) (4000hex) Par.3-00 set to Reverse Forward (1) -max- +max Par.3-03 Par.3-03 Max reference Max reference 100% (0hex) (4000hex) Par.3-00 set to Forward (0) min-max Par.3-02 Par.3-03 Max reference Min reference ® MG02K102 - VLT is a registered Danfoss trademark...
Weight enclosure IP20 [kg] 95.6/ 96.5/ 96.6/ 97.0/ 96.9/ Efficiency [%], Best case/Typical 94.5 95.6 96.0 96.7 97.1 Table 9.1 Mains Supply 1 x 200 - 240 V AC At rated load conditions. ® MG02K102 - VLT is a registered Danfoss trademark...
Page 88
96.4/ 96.7/ 97.1/ 97.4/ 97.2/ 97.3/ Efficiency [%], Best case/Typical 94.9 95.8 96.3 97.2 97.4 97.4 Table 9.2 Mains Supply 3 x 200 - 240 V AC At rated load conditions. ® MG02K102 - VLT is a registered Danfoss trademark...
Page 89
98.0/ 98.0/ 97.8/ 97.7/ 98.1/ 98.1/ Efficiency [%], Best case/Typical 97.5 97.5 97.4 97.4 98.0 97.9 Table 9.4 Mains Supply 3 x 380 - 480 V AC At rated load conditions. ® MG02K102 - VLT is a registered Danfoss trademark...
Page 90
< 14 V DC Maximum voltage on input 28 V DC Input resistance, R approx. 4 k Max. pulse frequency at terminal 33 5000 Hz Min. pulse frequency at terminal 33 20 Hz ® MG02K102 - VLT is a registered Danfoss trademark...
Page 91
Output voltage 10.5 V ±0.5 V Max. load 25 mA NOTE All inputs, outputs, circuits, DC supplies and relay contacts are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. ® MG02K102 - VLT is a registered Danfoss trademark...
Page 92
EMC standards, Emission EN 61800-3, EN 61000-6-3/4, EN 55011, IEC 61800-3 EN 61800-3, EN 61000-6-1/2, EN 61000-4-2, EN 61000-4-3, EMC standards, Immunity EN 61000-4-4, EN 61000-4-5, EN 61000-4-6 See 4.2 Special Condition ® MG02K102 - VLT is a registered Danfoss trademark...
De-Coupling................... 30 Hold Output Frequency..............83 Definitions....................7 Derating For Low Air Pressure............39 To Connect A PC To The Frequency Converter..... 61 To Control The Frequency Converter........79 To Order....................40 ® MG02K102 - VLT is a registered Danfoss trademark...
Page 94
Preset Reference................... 66 Process CL Feedback Resource..............67 Feed Forward Factor............... 67 PI Anti Windup.................. 67 PI Integral Time................. 67 PI Normal/Inverse................67 PI Proportional Gain................ 67 PI Start Speed..................67 ® MG02K102 - VLT is a registered Danfoss trademark...
Page 95
Number....................63 VVC....................... 9 Software....................63 Short Circuit (Motor Phase – Phase)..........25 Soft-starter....................16 What Software Version..................5 Is CE Conformity And Labeling?..........11 Is Covered................... 11 Star/Delta Starter.................. 16 ® MG02K102 - VLT is a registered Danfoss trademark...
Need help?
Do you have a question about the VLT Micro Drive PK18 and is the answer not in the manual?
Questions and answers