Danfoss VLT HVAC Design Manual
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Danfoss VLT HVAC Design Manual

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VLT
®
HVAC Drive Design Guide
Contents
MG.11.B9.02 - VLT
®
is a registered Danfoss trademark
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  • Page 1: Table Of Contents

    Contents 1 How to Read this Design Guide Copyright, limitation of liability and revision rights Approvals Symbols Abbreviations Definitions 2 Introduction to VLT HVAC Drive Safety CE labelling Aggressive Environments Vibration and shock Safe Stop Control Structures General aspects of EMC...
  • Page 2 8 General Specifications and Troubleshooting Mains Supply Tables General Specifications Efficiency Acoustic Noise Peak Voltage on Motor Special Conditions Troubleshooting Alarms and Warnings Alarm Words Warning Words Extended Status Words Fault Messages Index MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 3: How To Read This Design Guide

    Danfoss reserves the right to revise this publication at any time and to make changes to its contents without prior notice or any obligation to notify former or present users of such revisions or changes.

  • Page 4: Approvals

    Output Filter Design Guide, MG.90.Nx.yy Brake Resistor Design Guide, MG.90.Ox.yy x = Revision number yy = Language code Danfoss technical literature is available in print from your local Danfoss Sales Office or online at: www.danfoss.com/BusinessAreas/DrivesSolutions/Documentations/Technical+Documentation.htm 1.1.3 Approvals 1.1.4 Symbols Symbols used in this guide.

  • Page 5: Abbreviations

    The rated output current supplied by the frequency converter VLT,N 1.1.6 Definitions Drive: VLT,MAX The maximum output current. VLT,N The rated output current supplied by the frequency converter. VLT, MAX The maximum output voltage. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 6 The rated motor current (nameplate data). The rated motor speed (nameplate data). The rated motor power (nameplate data). The rated torque (motor). The instantaneous motor voltage. The rated motor voltage (nameplate data). Break-away torque MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 7 The analog outputs can supply a signal of 0-20 mA, 4-20 mA, or a digital signal. Automatic Motor Adaptation, AMA AMA algorithm determines the electrical parameters for the connected motor at standstill. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 8 Numerical Local Control Panel LCP101 On-line/Off-line Parameters Changes to on-line parameters are activated immediately after the data value is changed. Changes to off-line parameters are not activated until you enter [OK] on the LCP. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 9 The lower the power factor, the higher the I for the same kW per- formance. The power factor indicates to which extent the frequency converter im- poses a load on the mains supply. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 10 In addition, a high power factor indicates that the different harmonic currents are low. The frequency converters' built-in DC coils produce a high power factor, which minimizes the imposed load on the mains supply. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 11: Introduction To Vlt Hvac Drive

    ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive 2 Introduction to VLT HVAC Drive 2.1 Safety 2.1.1 Safety Note The voltage of the frequency converter is dangerous whenever connected to mains. Incorrect installation of the motor, frequency converter or fieldbus may cause death, serious personal injury or damage to the equipment.
  • Page 12 Installation at high altitude: 380 - 500 V, enclosure A, B and C: At altitudes above 2 km, please contact Danfoss regarding PELV. 380 - 500 V, enclosure D, E and F: At altitudes above 3 km, please contact Danfoss regarding PELV.

  • Page 13: Ce Labelling

    Frequency converters must be CE labelled in accordance with the low-voltage directive of January 1, 1997. The directive applies to all electrical equipment and appliances used in the 50 - 1000 V AC and the 75 - 1500 V DC voltage ranges. Danfoss CE-labels in accordance with the directive and issues a declaration of conformity upon request.

  • Page 14: Aggressive Environments

    It must be noted that the responsibility for the final EMC properties of the appliance, system or installation rests with the installer. As an aid to the installer, Danfoss has prepared EMC installation guidelines for the Power Drive system. The standards and test levels stated for Power Drive...

  • Page 15: Vibration And Shock

    D and E enclosures have a stainless steel back-channel option to provide additional protection in aggressive environments. Proper ventilation is still required for the internal components of the drive. Contact Danfoss for additional information. 2.5 Vibration and shock...
  • Page 16 ® 2 Introduction to VLT HVAC Drive HVAC Drive Design Guide Illustration 2.1: Diagram showing all electrical terminals. (Terminal 37 present for units with Safe Stop Function only.) MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 17 ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 18 ® 2 Introduction to VLT HVAC Drive HVAC Drive Design Guide 2.6.2 Safe Stop Installation To carry out an installation of a Category 0 Stop (EN60204) in conformity with Safety Category 3 (EN954-1), follow these instructions: The bridge (jumper) between Terminal 37 and 24 V DC must be removed. Cutting or breaking the jumper is not sufficient. Remove it entirely to avoid short-circuiting.
  • Page 19 ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive The illustration below shows a Stopping Category 0 (EN 60204-1) with safety Category 3 (EN 954-1). The circuit interrupt is caused by an opening door contact. The illustration also shows how to connect a non-safety related hardware coast.
  • Page 20 ® 2 Introduction to VLT HVAC Drive HVAC Drive Design Guide Illustration 2.5: When using a frequency converter to reduce fan capacity to 60% - more than 50% energy savings may be obtained in typical applications. 2.7.3 Example of Energy Savings As can be seen from the figure (the laws of proportionality), the flow is controlled by changing the RPM.
  • Page 21 Pressure Power 2.7.4 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 fan speed according to thermal load on the system and the fact that the frequency converter has a build-in facility that enables the frequency converter to function as a Building Manage- ment System, BMS.
  • Page 22 ® 2 Introduction to VLT HVAC Drive HVAC Drive Design Guide Illustration 2.7: Discharge dampers reduce power consumption somewhat. Inlet Guide Vans offer a 40% reduction but are expensive to install. The Danfossfrequency converter solution reduces energy consumption with more than 50% and is easy to install.
  • Page 23 ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive Distribution Valve regulation Frequency converter control Hours Power Consumption Power Consumption 42,5 18.615 42,5 18.615 1314 38,5 50.589 29,0 38.106 1752 35,0 61.320 18,5 32.412 1752 31,5 55.188 11,5 20.148...
  • Page 24 ® 2 Introduction to VLT HVAC Drive HVAC Drive Design Guide 2.7.8 Star/Delta Starter or Soft-starter not Required When larger motors are started, it is necessary in many countries to use equipment that limits the start-up current. In more traditional systems, a star/ delta starter or soft-starter is widely used.
  • Page 25 The next few pages give typical examples of applications within HVAC. If you would like to receive further information about a given application, please ask your Danfoss supplier for an information sheet that gives a full description of the application.
  • Page 26 ® 2 Introduction to VLT HVAC Drive HVAC Drive Design Guide 2.7.13 Variable Air Volume VAV or Variable Air Volume systems, are used to control both the ventilation and temperature to satisfy the requirements of a building. Central VAV systems are considered to be the most energy efficient method to air condition buildings. By designing central systems instead of distributed systems, a greater efficiency can be obtained.
  • Page 27 Several features of the Danfoss HVAC dedicated frequency converter can be utilized to improve the performance of your CAV system. One concern of controlling a ventilation system is poor air quality. The programmable minimum frequency can be set to maintain a minimum amount of supply air regardless of the feedback or reference signal.
  • Page 28 Several features of the Danfoss HVAC dedicated frequency converter, the HVAC frequency converter can be utilized to improve the performance of your cooling tower fans application. As the cooling tower fans drop below a certain speed, the effect the fan has on cooling the water becomes small. Also, when utilizing a gear-box to frequency control the tower fan, a minimum speed of 40-50% may be required.
  • Page 29 ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive 2.7.19 Condenser Pumps Condenser Water pumps are primarily used to circulate water through the condenser section of water cooled chillers and their associated cooling tower. The condenser water absorbs the heat from the chiller's condenser section and releases it into the atmosphere in the cooling tower. These systems are used to provide the most efficient means of creating chilled water, they are as much as 20% more efficient than air cooled chillers.
  • Page 30 ® 2 Introduction to VLT HVAC Drive HVAC Drive Design Guide 2.7.21 Primary Pumps Primary pumps in a primary/secondary pumping system can be used to maintain a constant flow through devices that encounter operation or control difficulties when exposed to variable flow. The primary/ secondary pumping technique decouples the “primary” production loop from the “secondary”...
  • Page 31 ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive 2.7.23 Secondary Pumps Secondary pumps in a primary/secondary chilled water pumping system are used to distribute the chilled water to the loads from the primary production loop. The primary/secondary pumping system is used to hydronically de-couple one piping loop from another. In this case. The primary pump is used to maintain a constant flow through the chillers while allowing the secondary pumps to vary in flow, increase control and save energy.

  • Page 32: Control Structures

    ® 2 Introduction to VLT HVAC Drive HVAC Drive Design Guide 2.8 Control Structures 2.8.1 Control Principle Illustration 2.8: Control structures. The frequency converter is a high performance unit for demanding applications. It can handle various kinds of motor control principles such as U/f special motor mode and VVC plus and can handle normal squirrel cage asynchronous motors.
  • Page 33 ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive 2.8.3 Local (Hand On) and Remote (Auto On) Control The frequency converter can be operated manually via the local control panel (LCP) or remotely via analog/digital inputs or serial bus.
  • Page 34 ® 2 Introduction to VLT HVAC Drive HVAC Drive Design Guide While the default values for the drive’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. It is also possible to autotune the PI constants.
  • Page 35 ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive 2.8.6 Feedback Conversion In some applications it may be useful to convert the feedback signal. One example of this is using a pressure signal to provide flow feedback. Since the square root of pressure is proportional to flow, the square root of the pressure signal yields a value proportional to the flow.
  • Page 36 ® 2 Introduction to VLT HVAC Drive HVAC Drive Design Guide 2.8.7 Reference Handling Details for Open Loop and Closed Loop operation. A block diagram of how the drive produces the Remote Reference is shown below:. MG.11.B9.02 - VLT ®...
  • Page 37 ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive The Remote Reference is comprised of: • Preset references. • External references (analog inputs, pulse frequency inputs, digital potentiometer inputs and serial communication bus references). • The Preset relative reference.
  • Page 38 ® 2 Introduction to VLT HVAC Drive HVAC Drive Design Guide 1. Start/Stop via switch connected between terminals 12 (+24 V) and 18. 2. Temperature reference via a potentiometer (-5 to +35°C, 0 10 V) connected to terminals 50 (+10 V), 53 (input) and 55 (common).

  • Page 39: General Aspects Of Emc

    ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive 2.8.10 Tuning the Drive Closed Loop Controller Once the drive’s Closed Loop Controller has been set up, the performance of the controller should be tested. In many cases, its performance may be...
  • Page 40 ® 2 Introduction to VLT HVAC Drive HVAC Drive Design Guide If the screen is to be placed on a mounting plate for the frequency converter, the mounting plate must be made of metal, because the screen currents have to be conveyed back to the unit. Moreover, ensure good electrical contact from the mounting plate through the mounting screws to the frequency converter chassis.
  • Page 41 ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive 2.9.3 EMC Test Results (Emission) The following test results have been obtained using a system with a frequency converter (with options if relevant), a screened control cable, a control box with potentiometer, as well as a motor and motor screened cable.
  • Page 42 The immunity requirements for frequency converters depend on the environment where they are installed. The requirements for the industrial environment are higher than the requirements for the home and office environment. All Danfoss frequency converters comply with the requirements for the industrial environment and consequently comply also with the lower requirements for home and office environment with a large safety margin.

  • Page 43: Galvanic Isolation (Pelv)

    ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive • EN 61000-4-2 (IEC 61000-4-2): Electrostatic discharges (ESD): Simulation of electrostatic discharges from human beings. • EN 61000-4-3 (IEC 61000-4-3): Incoming electromagnetic field radiation, amplitude modulated simulation of the effects of radar and radio communication equipment as well as mobile communications equipment.

  • Page 44: Earth Leakage Current

    Installation at high altitude: 380 - 500 V, enclosure A, B and C: At altitudes above 2 km, please contact Danfoss regarding PELV. 380 - 500V, enclosure D, E and F: At altitudes above 3 km, please contact Danfoss regarding PELV.

  • Page 45: Brake Function

    (as part of the total cycle time) Danfoss offers brake resistors with duty cycle of 5%, 10% and 40% suitable for use with the FC 102 frequency converter series. If a 10% duty cycle resistor is applied, this is able of absorbing braking power upto 10% of the cycle time with the remaining 90% being used to dissipate heat from the resistor.
  • Page 46 1109 V 1130 V Check that the brake resistor can cope with a voltage of 410 V, 820 V or 975 V - unless Danfoss brake resistors are used. Danfoss recommends the brake resistance R , i.e. one that guarantees that the frequency converter is able to brake at the highest braking torque ) of 110%.

  • Page 47: Extreme Running Conditions

    ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive 2.12.3 Control with Brake Function The brake is protected against short-circuiting of the brake resistor, and the brake transistor is monitored to ensure that short-circuiting of the transistor is detected. A relay/digital output can be used for protecting the brake resistor against overloading in connection with a fault in the frequency converter.
  • Page 48 Operation within the torque limit is limited in time (0-60 s) in par. 14-25 2.13.1 Motor Thermal Protection This is the way Danfoss is protecting the motor from being overheated. It is an electronic feature that simulates a bimetal relay based on internal measurements. The characteristic is shown in the following figure: Illustration 2.11: The X-axis is showing the ratio between I...
  • Page 49 ® HVAC Drive Design Guide 2 Introduction to VLT HVAC Drive Using a digital input and 24 V as power supply: Example: The frequency converter trips when the motor temperature is too high. Parameter set-up: Motor Thermal Protection Thermistor Trip Set par.
  • Page 50 ® 3 VLT HVAC Drive Selection HVAC Drive Design Guide MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 51: Vlt Hvac Drive Selection

    3 VLT HVAC Drive Selection 3 VLT HVAC Drive Selection 3.1 Options and Accessories Danfoss offers a wide range of options and accessories for the frequency converters. 3.1.1 Mounting of Option Modules in Slot B The power to the frequency converter must be disconnected.
  • Page 52 ® 3 VLT HVAC Drive Selection HVAC Drive Design Guide 3.1.2 General Purpose Input Output Module MCB 101 MCB 101 is used for extension of the number of digital and analog inputs and outputs of the frequency converter. Contents: MCB 101 must be fitted into slot B in the frequency converter.
  • Page 53 ® HVAC Drive Design Guide 3 VLT HVAC Drive Selection 3.1.3 Digital Inputs - Terminal X30/1-4 Parameters for set-up: 5-16, 5-17 and 5-18 Number of digital Voltage level Voltage levels Tolerance Max. Input impedance inputs 0-24 V DC PNP type: ±...
  • Page 54 ® 3 VLT HVAC Drive Selection HVAC Drive Design Guide 3.1.7 Relay Option MCB 105 The MCB 105 option includes 3 pieces of SPDT contacts and must be fitted into option slot B. Electrical Data: Max terminal load (AC-1) (Resistive load)
  • Page 55 ® HVAC Drive Design Guide 3 VLT HVAC Drive Selection Warning Dual supply How to add the MCB 105 option: • See mounting instructions in the beginning of section Options and Accessories • The power to the live part connections on relay terminals must be disconnected.
  • Page 56 ® 3 VLT HVAC Drive Selection HVAC Drive Design Guide Do not combine low voltage parts and PELV systems. 3.1.8 24 V Back-Up Option MCB 107 (Option D) External 24 V DC Supply An external 24 V DC supply can be installed for low-voltage supply to the control card and any option card installed. This enables full operation of the LCP (including the parameter setting) and fieldbusses without mains supplied to the power section.
  • Page 57 ® HVAC Drive Design Guide 3 VLT HVAC Drive Selection 3.1.9 Analog I/O option MCB 109 The Analog I/O card is supposed to be used in e.g. the following cases: • Providing battery back-up of clock function on control card •...
  • Page 58 ® 3 VLT HVAC Drive Selection HVAC Drive Design Guide Please note the values available within the different standard groups of resistors: E12: Closest standard value is 470Ω, creating an input of 449.9Ω and 8.997V. E24: Closest standard value is 510Ω, creating an input of 486.4Ω and 9.728V.

  • Page 59: Frame Size F Panel Options

    ® HVAC Drive Design Guide 3 VLT HVAC Drive Selection 3.1.10 Frame Size F Panel Options Space Heaters and Thermostat Mounted on the cabinet interior of frame size F frequency converters, space heaters controlled via automatic thermostat help control humidity inside the enclosure, extending the lifetime of drive components in damp environments.
  • Page 60 ® 3 VLT HVAC Drive Selection HVAC Drive Design Guide Unit features include: • Operation switch (on/off) • Short-circuit and overload protection with test function • Manual reset function 30 Ampere, Fuse-Protected Terminals • 3-phase power matching incoming mains voltage for powering auxiliary customer equipment •...
  • Page 61 Brake resistors are used to dissipate the excess energy resulting from the regenerative braking. The resistor is selected in respect to its ohmic value, its power dissipation rate and its physical size. Danfoss offers a wide variety of different resistors that are specially designed to our frequency converters.
  • Page 62 If the enclosure kit is used, an IP 20 unit is upgraded to comply with enclosure IP 21/ 4X top/TYPE 1. The IP 4X top can be applied to all standard IP 20 VLT HVAC Drive variants. A – Top cover B –...
  • Page 63 ® HVAC Drive Design Guide 3 VLT HVAC Drive Selection A – Top cover B – Brim C – Base part D – Base cover E – Screw(s) F - Fan cover G - Top clip When option module A and/...
  • Page 64 ® 3 VLT HVAC Drive Selection HVAC Drive Design Guide 3.1.14 Output Filters The high speed switching of the frequency converter produces some secondary effects, which influence the motor and the enclosed environment. These side effects are addressed by two different filter types, the du/dt and the Sine-wave filter.

  • Page 65: How To Order

    Type Code String - read from left to right. See next page! For the frequency converter, you can order standard drives and drives with integral options by sending a type code string describing the product a to the local Danfoss sales office, i.e.: Product groups Frequency Converter...
  • Page 66 XX: Standard software DX: No option D options 38-39 D0: DC back-up Table 4.1: Type code description. VLT HVAC Drive Design Guide, MG.11.BX.YY The various Options and Accessories are described further in the MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 67 D0: DC backup The various options are described further in this Design Guide. 1): Available for all D frames. E frames 380-480/500 VAC only 2) Consult factory for applications requiring maritime certification MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 68 CX: No options options X: No options C option software 36-37 XX: Standard software D options 38-39 DX: No option D0: DC backup The various options are described further in this Design Guide. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 69: Ordering Numbers

    Front mounting kit, IP55 enclosures 130B1129 LCP kit Panel mounting kit for all LCPs including fasteners and gasket - without cable 130B1170 Table 4.2: Options can be ordered as factory built-in options, see ordering information. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 70 24 V DC back-up 130B1108 130B1208 External Options Ethernet IP Ethernet master 175N2584 For information on fieldbus and application option compatibility with older software versions, please contact your Danfoss supplier. Type Description Spare Parts Ordering no. Comments Control board FC...
  • Page 71 Top Entry Sub D or Shield Termination D3/D4/E2 Frames 176F1742 175R5964 4.2.3 Ordering Numbers: Harmonic Filters Harmonic filters are used to reduce mains harmonics. • AHF 010: 10% current distortion • AHF 005: 5% current distortion MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 72 175G6689 + 175G6690 175G6692 + 175G6693 P450 2x175G6690 2x175G6693 P500 Matching the frequency converter and filter is pre-calculated based on 400V/480V and on a typical motor load (4 pole) and 110 % torque. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 73 130B2334 + 130B2335 130B2299 + 130B2300 P400 2x130B2335 2x130B2300 P450 130B2300 + 130B2301 P500 2x130B2301 P560 130B2301 + 130B2300 P630 2x130B2302 P710 Table 4.3: * For higher currents, please contact Danfoss. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 74 2x130B2317 2x130B2291 1500 P1M0 2x130B2318 2x130B2292 1700 Switching Frequency When using Sine-wave filters, the switching frequency should comply with filter specifications in par. 14-01 See also Output Filter Design Guide, MG.90.Nx.yy MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 75 130B2384 130B2340 1320 P1M4 2x130B2382 2x130B2338 1479 When using Sine-wave filters, the switching frequency should comply with filter specifications in par. 14-01 Switching Frequency See also Output Filter Design Guide, MG.90.Nx.yy MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 76 P560 P630 130B2407 130B2394 1500 P630 P710 130B2407 130B2394 1500 P710 P800 130B2407 130B2394 1500 P800 P1M0 130B2407 130B2394 1500 P1M0 130B2410 130B2395 2300 See also Output Filter Design Guide, MG.90.Nx.yy MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 77 1350 P1M0 130B2431 130B2422 1350 P1M2 130B2431 130B2422 1350 P1M4 2x130B2430 2x130B2421 1530 See also Output Filter Design Guide, MG.90.Nx.yy 4.2.8 Ordering numbers: Brake resistors See Brake Resistor Design Guide, MG.90.Ox.yy MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 78 ® 5 How to Install HVAC Drive Design Guide MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 79: How To Install

    ® HVAC Drive Design Guide 5 How to Install 5 How to Install Page intentionally left blank! MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 80 ® 5 How to Install HVAC Drive Design Guide MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 81: Mechanical Dimensions

    ® HVAC Drive Design Guide 5 How to Install MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 82 ® 5 How to Install HVAC Drive Design Guide MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 83 ® HVAC Drive Design Guide 5 How to Install MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 84 ® 5 How to Install HVAC Drive Design Guide MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 85 Table 5.1: When mounting enclosure sizes A5, B1, B2, B3, B4, C1, C2, C3 and C4 on a non-solid back wall, the drive must be provided with a back plate A due to insufficient cooling air over the heat sink. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 86: Lifting

    Maximum diameter for bar is 2.5 cm (1 inch). The angle from the top of the drive to the lifting cable should be 60° C or greater. Illustration 5.4: Recommended lifting method, frame size Illustration 5.5: Recommended lifting method, frame size MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 87 The service life of the frequency converter is reduced if derating for ambient temperature is not taken into account. 5.1.7 Field Mounting For field mounting the IP 21/IP 4X top/TYPE 1 kits or IP 54/55 units are recommended. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 88: Electrical Installation

    5.2 Electrical Installation 5.2.1 Cables general High Power Operating Instruc- For the VLT HVAC Drive High Power series mains and motor connections, please see VLT HVAC Drive tions MG.11.FX.YY Cables General All cabling must comply with national and local regulations on cable cross-sections and ambient temperature. Copper (60/75 °C) conductors are recommended.

  • Page 89: Electrical Installation And Control Cables

    No operation Terminal 37 Digital Input Safe Stop Terminal 42 Analog Output 6-50 Speed 0-HighLim Terminal 53 Analog Input 3-15/6-1*/20-0* Reference Terminal 54 Analog Input 3-15/6-2*/20-0* Feedback Table 5.3: Terminal connections MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 90 The frequency converter has been tested with a given length of cable and a given cross-section of that cable. If the cross-section is increased, the cable capacitance - and thus the leakage current - may increase, and the cable length must be reduced correspondingly. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 91 Illustration 5.10: Cable entry holes for enclosure B1. The suggested use of the holes are purely recommendations and other solutions are possible. Illustration 5.11: Cable entry holes for enclosure B1. The suggested use of the holes are purely recommendations and other solutions are possible. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 92 Illustration 5.13: Cable entry holes for enclosure B2. The suggested use of the holes are purely recommendations and other solutions are possible. Illustration 5.14: Cable entry holes for enclosure C1. The suggested use of the holes are purely recommendations and other solutions are possible. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 93 The gland plate must be fitted to the frequency converter to ensure the specified protection degree, as well as ensuring proper cooling of the unit. If the gland plate is not mounted, the frequency converter may trip on Alarm 69, Pwr. Card Temp MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 94 Illustration 5.16: Example of proper installation of the gland plate. Frame size D1 + D2 Frame size E1 Cable entries viewed from the bottom of the frequency converter - 1) Mains side 2) Motor side MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 95 5 How to Install Frame size F1 Frame size F2 Frame size F3 Frame size F4 F1-F4: Cable entries viewed from the bottom of the frequency converter - 1) Place conduits in marked areas MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 96 Over-current protection If UL/cUL is not to be complied with, Danfoss recommends using the fuses mentioned in the table below, which will ensure compliance with EN50178. In case of malfunction, not following the recommendation may result in unnecessary damage to the frequency converter.
  • Page 97 If UL/cUL is not to be complied with, we recommend using the following fuses, which will ensure compliance with EN50178: Frequency Converter Voltage Type P110 - P250 380 - 480 V type gG P315 - P450 380 - 480 V type gR Table 5.5: Compliance with EN50178 MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 98 L50S fuses from LITTEL FUSE may substitute L50S fuses for 240 V frequency converters. A6KR fuses from FERRAZ SHAWMUT may substitute A2KR for 240 V frequency converters. A50X fuses from FERRAZ SHAWMUT may substitute A25X for 240 V frequency converters. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 99 170M3018 2061032.35 6.6URD30D08A0350 170M3018 P200 170M4011 2061032.35 6.6URD30D08A0350 170M5011 P250 170M4012 2061032.4 6.6URD30D08A0400 170M5011 P315 170M4014 2061032.5 6.6URD30D08A0500 170M5011 P400 170M5011 2062032.55 6.6URD32D08A550 170M5011 Table 5.12: Frame size D, 525-690 V MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 100 Time Delay, 25 A P710-P1M4, 525-690 V LPJ-20 SP or SPI 20 A, 600 V Any listed Class J Dual Ele- ment, Time Delay, 20 A Table 5.18: Manual Motor Controller Fuses MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 101 Remove the screw driver. The cable is now mounted to the ter- minal. To remove the cable from the terminal: Insert a screw driver in the square hole. Pull out the cable. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 102 Connect terminals 18 and 27 to +24 V (terminal 12/13) Default settings: 18 = latched start 27 = stop inverse Illustration 5.19: Terminal 37 available with Safe Stop Func- tion only! MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 103 The digital and analog in- and outputs must be connected separately to the frequency converter common inputs (terminal 20, 55, 39) to avoid ground currents from both groups to affect other groups. For example, switching on the digital input may disturb the analog input signal. Control cables must be screened/armoured. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 104 Installation. Default setting: S201 (A53) = OFF (voltage input) S202 (A54) = OFF (voltage input) S801 (Bus termination) = OFF It is recommended to only change switch position at power off. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 105: Final Set-Up And Test

    Choose between complete or reduced AMA. If an LC filter is mounted, run only the reduced AMA, or remove the LC filter during the AMA procedure. Press the [OK] key. The display shows “Press [Hand on] to start”. Press the [Hand on] key. A progress bar indicates if the AMA is in progress. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 106 "Report Value” in the [Alarm Log] shows the last measuring sequence carried out by the AMA, before the frequency converter entered alarm mode. 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.

  • Page 107: Additional Connections

    ABB OETL-NF600A E1/E2 P355-P450 380-480V ABB OETL-NF800A P500 380-480V & P710-P800 525-690V Merlin Gerin NPJF36000S12AAYP P560-P710 380-480V & P900 525-690V Merlin Gerin NRK36000S20AAYP P800-P1M0 380-480V & P1M0-P1M4 525-690V Merlin Gerin NRK36000S20AAYP MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 108 In case the frequency converter is supplied by DC or if the fan must run independently of the power supply, an external power supply can be applied. The connection is made on the power card. Terminal No. Function 100, 101 Auxiliary supply S, T 102, 103 Internal supply S, T MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 109 Provide further motor protection by e.g. thermistors in each motor or individual thermal relays. (Circuit breakers are not suit- able as protection). MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 110 Reinforce the PE so the high frequency impedance is lower in the PE than the input power leads Provide a good high frequency connection between the motor and the frequency converter for instance by screened cable which has a 360° connection in the motor and the frequency converter MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 111: Installation Of Misc. Connections

    To control or program the frequency converter from a PC, install the PC-based Configuration Tool MCT 10. Design Guide, chapter How to The PC is connected via a standard (host/device) USB cable, or via the RS-485 interface as shown in the VLT HVAC Drive Install > Installation of misc. connections The USB connection is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
  • Page 112 Choose “Open”– stored files will be shown Open the appropriate file Choose “Write to drive” All parameter settings are now transferred to the frequency converter. A separate manual for PC-based Configuration Tool MCT 10 is available. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 113: Safety

    The MCT 31 harmonic calculation PC tool enables easy estimation of the harmonic distortion in a given application. Both the harmonic distortion of Danfoss frequency converters as well as non-Danfoss frequency converters with different additional harmonic reduction devices, such as Danfoss AHF filters and 12-18-pulse rectifiers, can be calculated.

  • Page 114: Emc-Correct Installation

    If the installation is not carried out according to the guideline and if unscreened cables and control wires are used, some emission requirements are not complied with, although the immunity requirements are fulfilled. See the paragraph EMC test results MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 115 ® HVAC Drive Design Guide 5 How to Install Illustration 5.22: EMC-correct electrical installation of a frequency converter in cabinet. Illustration 5.23: Electrical connection diagram. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 116 5.7.2 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 radiation of electric noise depends on the transfer impedance (Z ).

  • Page 117: Residual Current Device

    If RCD relays are used, you must observe local regulations. Relays must be suitable for protection of 3-phase equipment with a bridge rectifier and for a brief discharge on power-up see section Earth Leakage Current for further information. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 118 ® 6 Application Examples HVAC Drive Design Guide MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 119: Application Examples

    Terminal 27= Stop par. 5-12 Terminal 18 Digital Input Latched start Par. 5-10 Terminal 27 Digital Input Stop inverse Par. 5-12 Illustration 6.2: Terminal 37: Available only with Safe Stop Function! MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 120: Potentiometer Reference

    6.1.5 Smart Logic Control New useful facility in the VLT HVAC Drive frequency converter is the Smart Logic Control (SLC). In applications where a PLC is generating a simple sequence the SLC may take over elementary tasks from the main control.

  • Page 121: Smart Logic Control Programming

    Ramp 1 Ramp Down Time Set the ramping times in par. 3-41 and par. 3-42 to the wanted times . 1 − 25 ) t acc × n norm t ramp ref RPM MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 122 Set the Smart Logic Control in par. 13-00 to ON. Start / stop command is applied on terminal 18. If stop signal is applied the frequency converter will ramp down and go into free mode. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 123: Basic Cascade Controller

    Override Bandwidth overrides the Staging Bandwidth to prevent immediate response to a short duration pressure change. An Override Bandwidth Timer can be programmed to prevent staging until the system pressure has stabilized and normal control established. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 124: Pump Staging With Lead Pump Alternation

    • De-stage at No-Flow ensures that all fixed speed pumps are stopped individually until the no-flow status disappears. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 125: Fixed Variable Speed Pump Wiring Diagram

    Every pump must be connected to two contactors (K1/K2 and K3/K4) with a mechanical interlock. Thermal relays or other motor protection devices must be applied according to local regulation and/or individual demands. • RELAY 1 (R1) and RELAY 2 (R2) are the built-in relays in the frequency converter. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 126: Cascade Controller Wiring Diagram

    Not affected Coast (EMERGENCY STOP) Coast to stop Cut out (built in relays are de-energized) Safety Interlock Coast to stop Cut out (built in relays are de-energized) Function of buttons on LCP: MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 127 Ramps up (if stopped by a normal stop com- Destaging (if running) mand) or stays in operation if already running Ramps down Ramps down Auto On Starts and stops according to commands via ter- Staging/Destaging minals or serial bus MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 128 ® 7 RS-485 Installation and Set-up HVAC Drive Design Guide MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 129: Installation And Set-Up

    Connect the cable screen to the cable clamps. Screened, twisted-pair cables are recommended in or- der to reduce noise between conductors. Illustration 7.1: Network Terminal Connection Illustration 7.2: Control card terminals MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 130 When crossing is unavoidable, the RS-485 cable must cross motor and brake resistor cables at an angle of 90 degrees. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 131: Fc Protocol Overview

    7 RS-485 Installation and Set-up 7.2 FC Protocol Overview The FC protocol, also referred to as FC bus or Standard bus, is the Danfoss standard fieldbus. It defines an access technique according to the master- slave principle for communications via a serial bus.

  • Page 132: Fc Protocol Message Framing Structure

    The 10 represents the fixed characters, while the “n’” is variable (depending on the length of the text). 7.4.4 Frequency Converter Address (ADR) Two different address formats are used. The address range of the frequency converter is either 1-31 or 1-126. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 133 Parameter block: 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. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 134 Write parameter value in RAM and EEprom (word) Read/write text Response slave ⇒master Bit no. Response No response Parameter value transferred (word) Parameter value transferred (double word) Command cannot be performed text transferred MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 135 Some parameters contain text that can be written to via the serial bus. To write a text via the PWE block, set the parameter command (AK) to ’F’ Hex. The index characters high-byte must be “5”. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 136 The block of process words is divided into two blocks of 16 bits, which always occur in the defined sequence. PCD 1 PCD 2 Control telegram (master⇒slave Control word) Reference-value Control telegram (slave ⇒master) Status word Present outp. frequency MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 137: Examples

    Ramp 1 Ramp Up Time 3E8 Hex corresponds to 1000 decimal. The conversion index for par. 3-41 is -2, i.e. 0.01. par. 3-41 Ramp 1 Ramp up Time is of the type Unsigned 32 MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 138: Modbus Rtu Overview

    The Bus Reference is commonly used for speed control. It is also possible to access the parameters, read their values, and where possible, write values to them. This permits a range of control options, including controlling the setpoint of the frequency converter when its internal PI controller is used. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 139: Modbus Rtu Message Framing Structure

    (shown as Start T1-T2-T3-T4). The first field to be transmitted is the device address. Following the last transmitted character, a similar period of at least 3.5 character intervals marks the end of the message. A new message can begin after this period. The entire message frame must be transmitted MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 140 Holding register 40001 is addressed as register 0000 in the data address field of the message. The function code field already specifies a ‘holding register’ operation. Therefore, the ‘4XXXX’ reference is implicit. Holding register 40108 is addressed as register 006BHEX (107 decimal). MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 141 Output data: Frequency converter status word register (STW). 50210 Output data: Frequency converter main actual value register (MAV). * Used to specify the index number to be used when accessing an indexed parameter. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 142 Modbus protocol is unaware of the sig- nificance of any particular value of any particular register. Slave device failure An unrecoverable error occurred while the server (or slave) was attempting to perform the requested action. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 143: How To Access Parameters

    Non standard data types are text strings and are stored as 4x registers (40001 – 4FFFF). The parameters are read using function 03HEX "Read Holding Registers" and written using function 10HEX "Preset Multiple Registers." Readable sizes range from 1 register (2 characters) up to 10 registers (20 characters). MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 144: Examples

    Data (Coils 40-33) Data (Coils 48-41) 06 (STW=0607hex) Error Check (CRC) Coils and registers are addressed explicit with an off-set of -1 in Modbus. I.e. Coil 33 is addressed as Coil 32. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 145 The normal response is an echo of the query, returned after the coil state has been forced. Field Name Example (HEX) Slave Address Function Force Data HI Force Data LO Quantity of Coils HI Quantity of Coils LO Error Check (CRC) MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 146 01 (frequency converter address) Function 0F (write multiple coils) Coil Address HI Coil Address LO 10 (coil address 17) Quantity of Coils HI Quantity of Coils LO 10 (16 coils) Error Check (CRC) MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 147 Example: Hex 0016E360 = 1.500.000 = 1500 RPM. Field Name Example (HEX) Slave Address Function Byte Count Data HI (Register 3030) Data LO (Register 3030) Data HI (Register 3031) Data LO (Register 3031) Error Check (CRC) MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 148 Response The normal response is an echo of the query, returned after the register contents have been passed. Field Name Example (HEX) Slave Address Function Register Address HI Register Address LO Preset Data HI Preset Data LO Error Check (CRC) MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 149 The normal response returns the slave address, function code, starting address, and quantity of registers preset. Field Name Example (HEX) Slave Address Function Starting Address HI Starting Address LO No. of Registers HI No. of registers LO Error Check (CRC) MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 150: Danfoss Fc Control Profile

    ® 7 RS-485 Installation and Set-up HVAC Drive Design Guide 7.11 Danfoss FC Control Profile Control Profile 7.11.1 Control Word According to FC Profile(par. 8-10 = FC profile) Bit value = 0 Bit value = 1 Reference value external selection lsb...
  • Page 151 Bit 12, Relay 04: Control word bit 12 Function Relay Bit 12 = "0": Relay 04 is not activated. Bit 12 = "1": Relay 04 is activated provided that is chosen in par. 5-40 MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 152 Bit 02 = ’0’: The frequency converter releases the motor. Bit 02 = ’1’: The frequency converter starts the motor with a start command. Bit 03, No error/trip: Bit 03 = ’0’ : The frequency converter is not in fault mode. Bit 03 = ’1’: The frequency converter trips. To re-establish operation, enter [Reset]. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 153 Bit 15 = ’0’: The timers for motor thermal protection and thermal protection are not exceeded 100%. Bit 15 = ’1’: One of the timers exceeds 100%. All bits in the STW are set to ’0’ if the connection between the Interbus option and the frequency converter is lost, or an internal communication problem has occurred. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 154 Negative figures are formatted by means of 2’s complement. The Actual Output frequency (MAV) is scaled in the same way as the bus reference. The reference and MAV are scaled as follows: MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 155: General Specifications And Troubleshooting

    Weight enclosure IP55 [kg] 13.5 13.5 13.5 13.5 13.5 Weight enclosure IP 66 [kg] 13.5 13.5 13.5 13.5 13.5 0.96 0.96 0.96 0.96 0.96 Efficiency Table 8.1: Mains Supply 200 - 240 VAC MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 156 ® 8 General Specifications and Troubleshooting HVAC Drive Design Guide MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 157 ® HVAC Drive Design Guide 8 General Specifications and Troubleshooting MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 158 ® 8 General Specifications and Troubleshooting HVAC Drive Design Guide MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 159 ® HVAC Drive Design Guide 8 General Specifications and Troubleshooting MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 160 Weight, enclosure IP00 [kg] Efficiency 0.98 Output frequency 0 - 800 Hz Heatsink overtemp. 85 °C 90 °C 105 °C 105 °C 115 °C trip Power card ambient 60 °C trip MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 161 460 V Weight, enclosure IP21, IP 54 [kg] Weight, enclosure IP00 [kg] 0.98 Efficiency Output frequency 0 - 600 Hz Heatsink overtemp. trip 95 °C 68 °C Power card ambient trip MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 162 1246/ 1541 1246/ 1541 54 [kg] Weight Rectifier Module [kg] Weight Inverter Module [kg] Efficiency 0.98 Output frequency 0-600 Hz Heatsink overtemp. 95 °C trip Power card ambient 68 °C trip MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 163 IP21, IP 54 [kg] Weight, enclosure IP00 [kg] Efficiency 0.97 0.97 0.98 0.98 0.98 Output frequency 0 - 600 Hz 85 °C Heatsink overtemp. trip 60 °C Power card ambient trip MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 164 Enclosure IP21, IP 54 [kg] Weight, Enclosure IP00 [kg] Efficiency 0.98 Output frequency 0 - 600 Hz 85 °C 90 °C 110 °C 110 °C Heatsink overtemp. trip 60 °C Power card ambient trip MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 165 0 - 600 Hz 0 - 500 Hz 0 - 500 Hz 110 °C 110 °C 85 °C Heatsink overtemp. trip Power card ambient trip 60 °C 60 °C 68 °C MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 166 8727 9673 Weight, enclosure IP21, IP 54 [kg] Weight, enclosure IP00 [kg] 0.98 Efficiency Output frequency 0 - 500 Hz Heatsink overtemp. trip 85 °C 68 °C Power card ambient trip MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 167 Values are based on a typical motor efficiency (eff2/eff3 border line). Motors with lower efficiency will also add to the power loss in the frequency converter and opposite. If the switching frequency is increased comed to the default setting, the power losses may rise sig- MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 168 (Though typical only 4W extra for a fully loaded control card, or options for slot A or slot B, each). Although measurements are made with state of the art equipment, some measurement inaccuracy must be allowed for (+/-5%). MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 169: General Specifications

    *Percentage relates to the frequency converter's nominal torque. Cable lengths and cross sections: Max. motor cable length, screened/armoured VLT HVAC Drive: 150 m Max. motor cable length, unscreened/unarmoured VLT HVAC Drive: 300 m Max. cross section to motor, mains, load sharing and brake * Maximum cross section to control terminals, rigid wire 1.5 mm...
  • Page 170 68 (P,TX+, RX+), 69 (N,TX-, RX-) Terminal number 61 Common for terminals 68 and 69 The RS-485 serial communication circuit is functionally seated from other central circuits and galvanically isolated from the supply voltage (PELV). MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 171 All control characteristics are based on a 4-pole asynchronous motor Surroundings: Enclosure type A IP 20/Chassis, IP 21kit/Type 1, IP55/Type12, IP 66/Type12 Enclosure type B1/B2 IP 21/Type 1, IP55/Type12, IP 66/12 Enclosure type B3/B4 IP20/Chassis MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 172 The USB connection is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. The USB connection is not galvanically isolated from protection earth. Use only isolated laptop/PC as connection to the USB connector on frequency converter or an isolated USB cable/converter. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 173: Efficiency

    In the range of 75-100% of the rated torque, the efficiency of the motor is practically constant, both when it is controlled by the frequency converter and when it runs directly on mains. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 174: Acoustic Noise

    In motors without phase insulation paper or other insulation reinforcement suitable for operation with voltage supply (such as a frequency converter), fit a sine-wave filter on the output of the frequency converter. To obtain approximate values for cable lengths and voltages not mentioned below, use the following rules of thumb: MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 175 0.594 0.807 0.708 0.575 0.669 Frequency Converter, P18K, T2 Cable Mains Rise time Vpeak dU/dt length [m] voltage [V] [μsec] [kV] [kV/μsec] 0.244 0.608 1.993 0.568 0.580 0.832 0.720 0.574 0.661 MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 176 0.310 2.564 0.370 1.190 1.770 Frequency Converter, P7K5, T4 Cable Mains Rise time Vpeak dU/dt length [m] voltage [V] [μsec] [kV] [kV/μsec] 0.04755 0.739 8.035 0.207 1.040 4.548 0.6742 1.030 2.828 MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 177 1.212 1.031 Frequency Converter, P45K, T4 Cable Mains Rise time Vpeak dU/dt length [m] voltage [V] [μsec] [kV] [kV/μsec] 0.254 1.056 3.326 0.465 1.048 1.803 0.815 1.032 1.013 0.890 1.016 0.913 MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 178 [kV/μsec] 0.71 1.165 1.389 0.61 0.942 1.233 0.80 0.906 0.904 0.82 0.760 0.743 Table 8.6: 1: With Danfoss dU/dt filter. Frequency Converter, P110 - P400, T7 Cable Mains Rise time Vpeak dU/dt length [m] voltage [V] [μsec] [kV] [kV/μsec] 0.38 1.513...

  • Page 179: Special Conditions

    With a typical full load current of EFF 2 motors, full output shaft power can be maintained up to 50 °C. For more specific data and/or derating information for other motors or conditions, please contact Danfoss. 8.6.3 Automatic adaptations to ensure performance The frequency converter constantly checks for critical levels of internal temperature, load current, high voltage on the intermediate circuit and low motor speeds.
  • Page 180 Note 1) Over-syncronous speed operation will result in the available motor torque decreasing inversely proportional with the increase in speed. This must be considered during the design phase to avoid over-loading of the motor. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 181: Troubleshooting

    Via serial communication/optional fieldbus. Reset Mode By resetting automatically using the [Auto Reset] function, which is a default setting for VLT HVAC Drive Drive, see par. 14-20 FC 100 Programming Guide After a manual reset using the [RESET] button on the LCP, the [AUTO ON] or [HAND ON] button must be pressed to restart the motor.
  • Page 182 AMA Parameter out of range AMA interrupted by user AMA timeout AMA internal fault Current limit External Interlock Output Frequency at Maximum Limit Voltage Limit Control Board Over-temperature Table 8.7: Alarm/Warning code list MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 183 A Trip Lock situation can only be reset by a power cycling. LED indication Warning yellow Alarm flashing red Trip locked yellow and red Table 8.9: LED Indication MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 184: Pwr. Card Temp

    The alarm words, warning words and extended status words can be read out via serial bus or optional fieldbus for diagnosis. See also par. 16-90 Word Warning Word Ext. Status Word , par. 16-92 and par. 16-94 MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 185: Alarm Words

    Brake resistor short circuit 02000000 Reserved 08000000 Brake chopper fault 04000000 Reserved 10000000 Option change 08000000 Reserved 20000000 Drive initialized 10000000 Reserved 40000000 Safe Stop 20000000 Reserved 80000000 Not used 40000000 Reserved 80000000 Reserved MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 186: Warning Words

    04000000 Low temperature 04000000 Reserved 08000000 Voltage limit 08000000 Reserved 10000000 Encoder loss 10000000 Reserved 20000000 Output frequency limit 20000000 Reserved 40000000 Not used 40000000 Reserved 80000000 Not used 80000000 Reserved MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 187: Extended Status Words

    01000000 Bypass 02000000 Reserved 02000000 Fire Mode 04000000 Reserved 04000000 Reserved 08000000 Reserved 08000000 Reserved 10000000 Reserved 10000000 Reserved 20000000 Reserved 20000000 Reserved 40000000 Reserved 40000000 Reserved 80000000 Reserved 80000000 Reserved MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 188: Fault Messages

    100% in par. 1-90 Motor Thermal Protection Connect a brake resistor Troubleshooting: Extend the ramp time Check if motor is over heating. Change the ramp type Check if the motor is mechanically overloaded. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 189 A fitted option is not operational with the present control board hardware or software. WARNING/ALARM 26, Brake resistor power limit Record the value of the following parameters and contact your Danfoss The power transmitted to the brake resistor is calculated: as a percent- supplier:...
  • Page 190 This alarm/ warning could also occur should the brake resistor overheat. ALARM 38, Internal fault Terminal 104 to 106 are available as brake resistor. Klixon inputs, see It may be necessary to contact your Danfoss supplier. Some typical alarm section Brake Resistor Temperature Switch. messages: WARNING/ALARM 28, Brake check failed Serial port cannot be initialized.
  • Page 191 WARNING 47, 24 V supply low The 24 V DC is measured on the control card. The external V DC backup power supply may be overloaded, otherwise contact your Danfoss sup- plier. WARNING 48, 1.8 V supply low The 1.8 V DC supply used on the control card is outside of allowable limits.
  • Page 192 Check that the gland plate is properly installed on IP 21 and IP Motor start has been delayed due to short-cycle protection active. See 54 (NEMA 1 and NEMA 12) drives. parameter group 22-7. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 193: Clock Fault

    1 = left most inverter module. 2 = middle inverter module in F2 or F4 drive. 2 = right inverter module in F1 or F3 drive. MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

  • Page 194: Index

    Brake Resistor Cabling Brake Resistor Calculation Brake Resistor Temperature Switch Brake Resistors 61, 77 Brake Resistors Branch Circuit Protection Break-away Torque Building Management System Building Management System, Bms Bypass Frequency Ranges MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 195 Digital Inputs - Terminal X30/1-4 Digital Inputs: Digital Output Digital Outputs - Terminal X30/5-7 Direction Of Motor Rotation Disposal Instruction Drive Configurator Du/dt Filters Earth Leakage Current Earth Leakage Current Earthing MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 196 How To Connect A Pc To The Frequency Converter How To Control The Frequency Converter I/os For Set Point Inputs Iec Emergency Stop With Pilz Safety Relay Igvs Immunity Requirements Index (ind) Installation At High Altitudes MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 197 Motor Thermal Protection Motor Thermal Protection 48, 110 Motor Voltage Motor-generated Over-voltage Multiple Pumps Multi-zone Control Name Plate Data Namur Network Connection Ni1000 Temperature Sensor Non-ul Fuses 200 V To 480 V MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 198 Relay Option Mcb 105 Relay Output Relay Outputs Removal Of Knockouts For Extra Cables Residual Current Device 44, 117 Return Fan Rise Time Rs 485 Bus Connection Rs-485 Safe Stop Safe Stop Installation MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 199 Usb Connection Use Of Emc-correct Cables Variable (quadratic) Torque Applications (vt) Variable Air Volume Variable Control Of Flow And Pressure Varying Flow Over 1 Year Vibration And Shock Vibrations Voltage Level MG.11.B9.02 - VLT ® is a registered Danfoss trademark...
  • Page 200 Index ® HVAC Drive Design Guide Vvcplus Warning Against Unintended Start Warning Word Warning Word 2 What Is Ce Conformity And Labelling? What Is Covered MG.11.B9.02 - VLT ® is a registered Danfoss trademark...

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