Page 1: Table Of Contents
Mechanical Dimensions Electrical Installation Final Set-Up and Test Additional Connections DC bus connection Brake Connection Option Relay Connection Installation of misc. connections Safety EMC-correct Installation Mains supply interference/Harmonics Residual Current Device MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 2 Danfoss FC Control Profile 8. General Specifications and Troubleshooting General Specifications Efficiency Acoustic noise Peak voltage on motor Special Conditions Alarms and warnings Alarm words Warning words Extended status words Fault messages Index MG.11.B7.02 - 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
Operating Instructions VLT HVAC Drive High Power, MG.11.Fx.yy Operating Instructions VLT HVAC Drive Metasys, MG.11.Gx.yy x = Revision number yy = Language code Danfoss technical literature is also available 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
Functions are divided into two groups. Freeze output Functions in group 1 have higher priority than functions in group 2. Motor: The motor frequency when the jog function is activated (via digital terminals). MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 6 The efficiency of the frequency converter is defined as the ratio between the power output and the power input. Start-disable command A stop command belonging to the group 1 control commands - see this group. Stop command See Control commands. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 7 The frequency converter features two Solid State outputs that can supply a 24 V DC (max. 40 mA) signal. Digital Signal Processor. Relay Outputs: The frequency converter features two programmable Relay Outputs. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 8 The frequency converter compensates for the motor slip by giving the frequency a supplement that follows the measured motor load keeping the motor speed almost constant.. Smart Logic Control (SLC) The SLC is a sequence of user defined actions executed when the associated user defined events are evaluated as true by the SLC. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 9 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 minimises the imposed load on the mains supply. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 10 ® 2. Introduction to VLT HVAC Drive HVAC Drive Design Guide MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 11: Introduction To Vlt Hvac Drive
Installation at High Altitudes By altitudes above 2 km, please contact Danfoss regarding PELV. Warning against Unintended Start The motor can be brought to a stop by means of digital commands, bus commands, references or a local stop, while the frequency converter is connected to mains.
Page 12: 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 13: Air Humidity
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 14: Aggressive Environments
The frequency converter complies with requirements that exist for units mounted on the walls and floors of production premises, as well as in panels bolted to walls or floors. IEC/EN 60068-2-6: Vibration (sinusoidal) - 1970 IEC/EN 60068-2-64: Vibration, broad-band random MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 15 If the system in question only needs to be able to supply a flow that corresponds to 100% a few days in a year, while the average is below 80% of the rated flow for the remainder of the year, the amount of energy saved is even more than 50%. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 16 Pressure Power 2.6.4. 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 17 The pay back period depends on the price per kwh and price of frequency converter. In this example it is less than a year when compared with valves and constant speed. Flow distribution over 1 year MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 18 Furthermore, a frequency converter can quickly adapt the speed of the fan or pump to new flow or pressure conditions in the system. Simple control of process (Flow, Level or Pressure) utilizing the built in PID control. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 19 2.6.10. Without a frequency converter The figure shows a fan system made in the traditional way. D.D.C. Direct Digital Control E.M.S. Energy Management system V.A.V. Variable Air Volume Sensor P Pressure Sensor T Temperature MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 20 ® 2. Introduction to VLT HVAC Drive HVAC Drive Design Guide 2.6.11. With a frequency converter The figure shows a fan system controlled by frequency converters. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 21 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 22 The return fan is frequently controlled to maintain a fixed difference in airflow between the supply and return. The advanced PID controller of the HVAC frequency converter can be used to eliminate the need for additional controllers. Pressure signal Cooling coil Heating coil VAV boxes Filter Supply fan Pressure transmitter Flow Return fan Flow MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 23 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 24 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 25 Using a frequency converter instead of a throttling valve simply saves the energy that would have been absorbed by the valve. This can amount to savings of 15-20% or more. Trimming the pump impeller is irreversible, thus if the conditions change and higher flow is required the impeller must be replaced. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 26 In the event the flow rate needs to be increased later in the systems life, the frequency converter can simply increase the pump speed instead of requiring a new pump impeller. Flowmeter Flowmeter MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 27 Please note that when running multiple pumps in parallel, they must run at the same speed to maximize energy savings, either with individual dedicated drives or one frequency converter running multiple pumps in parallel. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 28: Vlt Hvac Drive Controls
Alarms can be reset via the [RESET] key. After pressing the [Hand On] key, the frequency converter goes into Hand Mode and follows (as default) the Local reference set by using the LCP arrow keys. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 29 (i.e. Open Loop or Closed loop) is used when the Remote reference is active (see table above for the conditions). Reference Handling - Local Reference MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 30: Pid
The figure is a block diagram of the frequency converter’s Closed Loop Controller. The details of the Reference Handling block and Feedback Handling block are described in their respective sections below. The following parameters are relevant for a simple PID control application: MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 31 [2], the refrigerant type must be selected here. If the refrigerant used is not listed User defined here, select [7] and specify the characteristics of the refrigerant in par. 20-31, 20-32 and 20-33. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 32 2.8.3. Example of Closed Loop PID Control The following is an example of a Closed Loop Control for a ventilation system: MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 33 50 (+10 V), 53 (input) and 55 (common). 3. Temperature feedback via transmitter (-10-40°C, 4-20 mA) connected to terminal 54. Switch S202 behind the Local Control Panel set to ON (current input). MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 34 Adjust the frequency converter’s Closed Loop Con- 20-93 See Optimization of the PID Controller, below. troller, if needed. 20-94 8) Finished! All to LCP Save the parameter setting to the LCP for safe keep- 0-50 MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 35 Experience has shown that the control setting according to Ziegler Nichols rule provides a good closed loop response for many systems. If necessary, the operator can do the final tuning of the control iteratively to modify the response of the control loop. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 36 ® 2. Introduction to VLT HVAC Drive HVAC Drive Design Guide 2.8.7. Reference Handling A block diagram of how the drive produces the Remote Reference is shown below. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 37 Single Zone, Single Setpoint Single Zone Single Setpoint is a basic configuration. Setpoint 1 is added to any other reference (if any, see Reference Handling) and the feedback signal is selected using par. 20-20. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 38 Another application that may benefit from feedback conversion is compressor control. In such applications the output of a pressure sensor may be converted to the refrigerant temperature using the equation: Temperature − pressure + 1 ) − where A1, A2 and A3 are refrigerant-specific constants. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 39: General Aspects Of Emc
Four categories are defined in the EMC product standard. The definitions of the four categories together with the requirements for mains line conducted emissions are given in the table below: MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 40 75 m 50 m 10 m 110-450 kW 380-480 V 150 m 150 m 75-315 kW 525-600 V 150 m 30 m 1.1-90 kW 525-600 V Table 2.1: EMC Test Results (Emission) MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 41: Galvanic Isolation (Pelv)
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 42: Control With Brake Function
The functional galvanic isolation (a and b on drawing) is for the 24 V back-up option and for the RS 485 standard bus interface. Installation at high altitude 380 - 500 V: At altitudes above 3 km, please contact Danfoss regarding PELV. 525 - 690 V: At altitudes above 2 km, please contact Danfoss regarding PELV.
Page 43 (as part of the total cycle time) Danfoss offers brake resistors with duty cycle of 5%, 10% and 40% suitable for use with the VLT FC102 HVAC 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 44 2. Introduction to VLT HVAC Drive HVAC Drive Design Guide 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.
Page 45: Extreme Running Conditions
If the overload is excessive, a current may occur that makes the frequency converter cut out after approx. 5-10 s. Operation within the torque limit is limited in time (0-60 s) in par. 14-25. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 46 HVAC Drive Design Guide 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 2.7: The X-axis is showing the ratio between I...
Page 47 ETR shuts of the motor, the torque limit is protecting the motor and application for being overloaded. ETR is activated in par. 1-90 Torque Limit and is controlled in par. 4-16. The time before the torque limit warning trips the frequency converter is set in par. 14-25. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 48: Safe Stop
Operating Instructions are not sufficient for a correct and safe use of the Safe Stop functionality! Illustration 2.8: Diagram showing all electrical terminals. (Terminal 37 present for units with Safe Stop Function only.) MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 49 Connect terminal 37 to 24 V DC by a short-circuit protected cable. The 24 V DC voltage supply must be interruptible by an EN954-1 Category 3 circuit interrupt device. If the interrupt device and the frequency converter are placed in the same installation panel, you can use an unscreened cable instead of a screened one. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 50 The illustration also shows how to connect a non-safety related hardware coast. Illustration 2.10: Illustration of the essential aspects of an installation to achieve a Stopping Category 0 (EN 60204-1) with safety Category 3 (EN 954-1). MG.11.B7.02 - 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 If the digital inputs 7, 8 or 9 are to be switched by use of the internal 24 V power supply (terminal 9) the connection between terminal 1 and 5 which is illustrated in the drawing has to be established. Illustration 3.1: Principle Diagram MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 53 Relay Module MCB 105 • Extended LCP frame and enlarged terminal cover • Label for covering access to switches S201, S202 and S801 • Cable strips for fastening cables to relay module MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 54 ® 3. VLT HVAC Drive Selection HVAC Drive Design Guide A2-A3-B3 A5-B1-B2-B4-C1-C2-C3-C4 IMPORTANT! The label MUST be placed on the LCP frame as shown (UL approved). MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 55 Input capacitance load < 10 uF Power-up delay < 0.6 s The inputs are protected. Terminal numbers: Terminal 35: - external 24 V DC supply. Terminal 36: + external 24 V DC supply. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 56 When MCB 107, 24 V back-up option is supplying the control circuit, the internal 24 V supply is automatically disconnected. Illustration 3.3: Connection to 24 V back-up supplier (A5-C2). Illustration 3.2: Connection to 24 V back-up supplier (A2-A3). MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 57 E24: Closest standard value is 510Ω, creating an input of 486.4Ω and 9.728V. E48: Closest standard value is 511Ω, creating an input of 487.3Ω and 9.746V. E96: Closest standard value is 523Ω, creating an input of 498.2Ω and 9.964V. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 58 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 59 Illustration 3.5: LCP Kit with graphical LCP, fasteners, 3 m cable and Illustration 3.6: LCP Kit with numerical LCP, fasternes and gasket. gasket. LCP Kit without LCP is also available. Ordering number: 130B1117 MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 60 Sine-wave filters enable use of longer motor cables in applications where the motor is installed far from the drive. The length is unfortunately limited because the filter does not reduce leakage currents in the cables. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 61: 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 ser-...
Page 62 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 63: Ordering Numbers
Accessory bag, frame size B1 130B2060 Accessory bag B2 Accessory bag, frame size B2 130B2061 Table 4.2: 1) Only IP21 / > 11 kW Options can be ordered as factory built-in options, see ordering information. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 64 Accessory bag C4 Accessory bag, frame size C4 130B0983 For information on fieldbus and application option compatibility with older software versions, please contact your Danfoss supplier. 4.2.2. Ordering Numbers: Harmonic Filters Harmonic filters are used to reduce mains harmonics. •...
Page 65 130B2318 130B2292 1200 A P630 P710 2 kHz 60 Hz 130B2318 130B2292 1200 A par. 14-01 Switching Frequency When using Sine-wave filters, the switching frequency should comply with filter specifications in MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 66 130B2384 130B2340 1320 A P970 P1M2 1.5 kHz 60 Hz 130B2384 130B2340 1320 A When using Sine-wave filters, the switching frequency should comply with filter specifications in par. 14-01 Switching Frequency MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 67 2 kHz 60 Hz 130B2407 130B2394 1500 A 800 kW 1000 kW 2 kHz 60 Hz 130B2407 130B2394 1500 A 1000 kW 1100 kW 2 kHz 60 Hz 130B2410 130B2395 2300 A MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 68 2 kHz 60 Hz 130B2431 130B2422 1350 A 820 kW 1000 kW 2 kHz 60 Hz 130B2431 130B2422 1350 A 970 kW 1200 kW 2 kHz 60 Hz 130B2431 130B2422 1350 A MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 69 2 kHz 60 Hz 130B2431 130B2422 1350 A 820 kW 1000 kW 2 kHz 60 Hz 130B2431 130B2422 1350 A 970 kW 1200 kW 2 kHz 60 Hz 130B2431 130B2422 1350 A MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 70 ® 5. How to Install HVAC Drive Design Guide MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 71: How To Install
® HVAC Drive Design Guide 5. How to Install 5. How to Install Page intentionally left blank! MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 72: Mechanical Dimensions
® 5. How to Install HVAC Drive Design Guide MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 73 ® HVAC Drive Design Guide 5. How to Install MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 74 ® 5. How to Install HVAC Drive Design Guide MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 75 ® HVAC Drive Design Guide 5. How to Install MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 76 ® 5. How to Install HVAC Drive Design Guide MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 77 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 78 The service life of the frequency converter is reduced if derating for ambient temperature is not taken into account. 5.1.5. Field Mounting For field mounting the IP 21/IP 4X top/TYPE 1 kits or IP 54/55 units are recommended. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 79: Electrical Installation
Avoid mounting with twisted screen ends (pigtails), which will spoil high frequency screening effects. • If it is necessary to split the screen to install a motor isolator or motor relay, the screen must be continued with the lowest possible HF impedance. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 80 Illustration 5.3: Cable entry holes for enclosure B2. The suggested use sible. of the holes are purely recommendations and other solutions are pos- sible. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 81 Enclosure D1 + D2 Enclosure E1 Cable entries viewed from the bottom of the frequency converter - 1) Mains side 2) Motor side MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 82 5. How to Install HVAC Drive Design Guide Enclosure F1 Enclosure F2 Enclosure F3 Enclosure F4 F1-F4: Cable entries viewed from the bottom of the frequency converter - 1) Place conduits in marked areas MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 83 Do not connect 400 V frequency converters with RFI-filters to mains supplies with a voltage between phase and earth of more than 440 V. For IT mains and delta earth (grounded leg), mains voltage may exceed 440 V between phase and earth. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 84 ® 5. How to Install HVAC Drive Design Guide Illustration 5.7: Terminals for mains and earthing. Illustration 5.8: How to connect to mains and earthing with disconnector (A5 enclosure). MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 85 Illustration 5.10: When mounting cables, first mount and tighten earth cable. The earth connection cable cross section must be at least 10 mm or 2 rated mains wires terminated separately according to EN 50178/ IEC 61800-5-1 MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 86 ® 5. How to Install HVAC Drive Design Guide Illustration 5.11: Then mount mains plug and tighten wires. Illustration 5.12: Finally tighten support bracket on mains wires. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 87 Illustration 5.13: How to connect to mains and earthing without mains disconnect switch. Note that a cable clamp is used. Illustration 5.14: How to connect to mains and earthing with mains disconnect switch. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 88 Illustration 5.15: How to connect to mains and earthing for B1 and Illustration 5.17: How to connect to mains and earthing for B3 without RFI. For correct cable dimensions please see the section General Specifications at the back of this manual. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 89 Illustration 5.20: How to connect C3 to mains and earthing. 5.2.13. Motor Connection Motor cable must be screened/armoured. If an unscreened / unarmoured cable is used, some EMC requirements are not complied with. For more information, see EMC specifications MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 90 In motors without phase insulation paper or other insulation reinforcement suitable for operation with voltage supply (such as a fre- quency converter), fit a Sine-wave filter on the output of the frequency converter. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 91 U2, V2, W2 to be interconnected separately (optional terminal block) Earth connection 5.2.14. Motor connection for A2 and A3 Follow these drawings step by step for connecting the motor to the frequency converter. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 92 Illustration 5.23: First terminate the motor earth, then place motor U, V and W wires in plug and tighten. Illustration 5.24: Mount cable clamp to ensure 360 degree connection between chassis and screen, note the outer insulation of the motor cable is removed under the clamp. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 93 Illustration 5.26: First terminate the motor earth, then Place motor U, V and W wires in terminal and tighten. Please ensure that the outer insulation of the motor cable is removed under the EMC clamp. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 94 Illustration 5.29: First terminate the motor earth, then Place motor U, V and W wires in terminal and tighten. Please ensure that the outer insulation of the motor cable is removed under the EMC clamp. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 95 Non UL compliance If UL/cUL is not to be complied with, Danfoss recommends using the fuses mentioned in table 5.2, which will ensure compliance with EN50178: In case of malfunction, not following the recommendation may result in unnecessary damage to the frequency converter.
Page 96 *170M fuses from Bussmann shown use the -/80 visual indicator, -TN/80 Type T, -/110 or TN/110 Type T indicator fuses of the same size and amperage may be substituted for external use. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 97 A2K-125R KTN-R125 JKS-150 JJN-125 2028220-125 KLN-R125 A2K-125R A2K-125R FWX-150 2028220-150 L25S-150 A25X-150 A25X-150 FWX-200 2028220-200 L25S-200 A25X-200 A25X-200 FWX-250 2028220-250 L25S-250 A25X-250 A25X-250 Table 5.11: UL fuses 200 - 240 V MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 98 20221 900 A, 700 V P355 170M6013 20221 900 A, 700 V P400 170M6013 20221 900 A, 700 V P450 170M6013 20221 900A, 700 V Table 5.17: E enclosures, 380-480 V MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 99 Illustration 5.31: A1, A2, A3,B3, B4, C3 and C4 enclosures 5.2.22. Control Terminals Drawing reference numbers: 10 pole plug digital I/O. 3 pole plug RS485 Bus. 6 pole analog I/O. USB Connection. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 100 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. Max. 0.4 x 2.5 mm MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 101 Connect terminals 18 and 27 to +24 V (terminal 12/13) Default settings: 18 = latched start 27 = stop inverse Illustration 5.35: Terminal 37 available with Safe Stop Function only! MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 102 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 103 (terminals 68 and 69). Diagram showing all electrical terminals Electrical See drawing in section Installation. Default setting: S201 (A53) = OFF (voltage input) S202 (A54) = OFF (voltage input) S801 (Bus termination) = OFF MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 104: 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 105 "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 106: Additional Connections
Terminals Dynamic brake calls for extra equipment and safety considerations. For further information, please contact Danfoss. Use cable clamps to connect the screen to the metal cabinet of the frequency converter and to the decoupling plate of the brake resistor.
Page 107: Relay Connection
To set relay output, see par. group 5-4* Relays. 01 - 02 make (normally open) 01 - 03 break (normally closed) 04 - 05 make (normally open) 04 - 06 break (normally closed) MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 108 (A5, B1 and B2 enclosures). Illustration 5.45: Terminals for relay connection (C1 and C2 enclosures). The relay connections are shown in the cut-out with relay plugs (from the Accessory Bag) fitted. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 109 Relay 1 and relay 2 are programmed in par. 5-40 Function , par. • Terminal 03: normal closed 240 V AC Delay, Relay Delay, Relay 5-41 On , and par. 5-42 Off Relay 2 MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 110 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 111: Installation Of Misc. Connections
The RS485 bus must be terminated by a resistor network at both ends. For this purpose, set switch S801 on the control card for "ON". Switches S201, S202, and S801 For more information, see the paragraph Communication protocol must be set to FC MC par. 8-30. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 112 Load Drive Settings: Open PC-based Configuration Tool MCT 10 Connect a PC to the unit via USB com port Choose “Read from drive” Open PC-based Configuration Tool MCT 10 Choose “Save as” MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 113: Safety
Smart Logic Controller Set-up Ordering number: Please order your CD containing the PC-based Configuration Tool MCT 10 using code number 130B1000. http:// MCT 10 can also be downloaded from the Danfoss Internet: www.danfoss.com/BusinessAreas/DrivesSolutions/Softwaredownload/ DDPC+Software+Program.htm Ordering number: MCT 31 Please order your CD containing the MCT 31 PC tool using code number The MCT 31 harmonic calculation PC tool enables easy estimation of the 130B1031.
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 EMC test results complied with, although the immunity requirements are fulfilled. See the paragraph MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 115 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 116 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 magnetic, screened/ armoured intermediate layer.
Page 117 61. This terminal is connected to earth via an internal RC link. Use twisted-pair cables to reduce the differential mode interference between the conductors. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 118: Mains Supply Interference/Harmonics
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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 119: Application Examples
Terminal 18 = start/stop par. 5-10 [9] Terminal 27= Stop par. 5-12 [6] Stop inverse Digital Input Latched start Par. 5-10 Digital Input Stop inverse Par. 5-12 Illustration 6.2: Terminal 37: Available only with Safe Stop Function! MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 120: Potentiometer Reference
The Smart Logic Control (SLC) is essentially a sequence of user defined actions (see par. 13-52) executed by the SLC when the associated user defined event (see par. 13-51) is evaluated as TRUE by the SLC. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 121: Slc Application Example
Set Preset reference 0 to first preset speed (par. 3-10 [0]) in percentage of Max reference speed (par. 3-03). Ex.: 60% Set preset reference 1 to second preset speed (par. 3-10 [1] Ex.: 0 % (zero). MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 122: Basic Cascade Controller
(“head”) or level needs to be maintained over a wide ble of operating 2 pumps. dynamic range. Running a large pump at variable speed over a wide for MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 123: Pump Staging With Lead Pump Alternation
• Destage at No-Flow ensures that all fixed speed pumps are stopped individually until the no-flow status disappears. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 124: Fixed Variable Speed Pump Wiring Diagram
The wiring diagram shows an example with the built in BASIC cascade controller with one variable speed pump (lead) and two fixed speed pumps, a 4-20 mA transmitter and System Safety Interlock. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 125: Start/Stop Conditions
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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 126 ® 7. RS-485 Installation and Set-up HVAC Drive Design Guide MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 127: Installation And Set-Up
Connect signal wires to terminal 68 (P+) and terminal 69 (N-) on the main control board of the frequency converter. 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 MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 128 When crossing is unavoidable, the RS-485 cable must cross motor and brake resistor cables at an angle of 90 degrees. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 129: 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 130: Network Configuration
LGE = 12 + 1 + 1 = 14 bytes The length of telegrams containing texts is +n bytes The 10 represents the fixed characters, while the “n’” is variable (depending on the length of the text). MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 131 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 132 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 133 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 134: Examples
Control telegram (master⇒slave Control word) Reference-value Control telegram (slave ⇒master) Status word Present outp. frequency 7.5. Examples 7.5.1. Writing a parameter value Motor Speed High Limit [Hz] Change par. 4-14 to 100 Hz. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 135: Modbus Rtu Overview
The Modbus RTU (Remote Terminal Unit) is designed to communicate with any controller that supports the interfaces defined in this document. It is assumed that the user has full knowledge of the capabilities and limitations of the controller. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 136 To enable Modbus RTU on the frequency converter, set the following parameters: Parameter Number Parameter name Setting 8-30 Protocol Modbus RTU 8-31 Address 1 - 247 8-32 Baud Rate 2400 - 115200 8-33 Parity/Stop bits Even parity, 1 stop bit (default) MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 137: Modbus Rtu Message Framing Structure
When the slave sends its response, it places its own address in this address field to let the master know which slave is responding. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 138 Parameter write control (master to slave) Master to slave Parameter changes are written to the RAM of the frequency con- verter Parameter changes are written to the RAM and EEPROM of the frequency converter. 66-65536 Reserved MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 139 Modbus RTU Message Framing Structure. 7.8.10. Function Codes Supported by Modbus RTU Modbus RTU supports use of the following function codes in the function field of a message: MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 140: How To Access Parameters
The PNU (Parameter Number) is translated from the register address contained in the Modbus read or write message. The parameter number is translated to Modbus as (10 x parameter number) DECIMAL. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 141 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 142: Examples
Field Name Example (HEX) Slave Address 01 (frequency converter address) Function 01 (read coils) Byte Count 02 (2 bytes of data) Data (Coils 40-33) Data (Coils 48-41) 06 (STW=0607hex) Error Check (CRC) MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 143 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 144 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 145 Slave Address Function Byte Count Data HI (Register 40001) Data LO (Register 40001) Data HI (Register 40002) Data LO (Register 40002) Data HI (Register 40003) Data LO (Register 40003) Error Check (CRC) MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 146 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 147 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 148: Danfoss Fc Control Profile
® 7. RS-485 Installation and Set-up HVAC Drive Design Guide 7.11. Danfoss FC 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 Reference value...
Page 149 Bit 12, Relay 04: Bit 12 = "0": Relay 04 is not activated. Bit 12 = "1": Relay 04 is activated provided that Control word bit 12 is chosen in par. 5-40 Function relay MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 150 Bit 03 = ’0’ : The frequency converter is not in fault mode. Bit 03 = ’1’: The frequency converter trips. To re-establish operation, enter [Reset]. Bit 04, No error/error (no trip): MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 151 (0-32767) the value 16384 (4000 Hex) corresponds to 100%. 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. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 152 ® 7. RS-485 Installation and Set-up HVAC Drive Design Guide The reference and MAV are scaled as follows: MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 153: General Specifications And Troubleshooting
Weight enclosure IP20 [kg] Weight enclosure IP21 [kg] 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 MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 154 ® 8. General Specifications and Troubleshooting HVAC Drive Design Guide MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 155 ® HVAC Drive Design Guide 8. General Specifications and Troubleshooting MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 156 ® 8. General Specifications and Troubleshooting HVAC Drive Design Guide MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 157 ® HVAC Drive Design Guide 8. General Specifications and Troubleshooting MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 158 ® 8. General Specifications and Troubleshooting HVAC Drive Design Guide MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 159 ® HVAC Drive Design Guide 8. General Specifications and Troubleshooting MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 160 All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. 1) Terminals 27 and 29 can also be programmed as output. Analog inputs: Number of analog inputs Terminal number 53, 54 Modes Voltage or current MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 161 The RS-485 serial communication circuit is functionally separated from other central circuits and galvanically isolated from the supply voltage (PELV). Digital output: Programmable digital/pulse outputs Terminal number 27, 29 Voltage level at digital/frequency output 0 - 24 V Max. output current (sink or source) 40 mA MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 162 Speed control range (open loop) 1:100 of synchronous speed Speed accuracy (open loop) 30 - 4000 rpm: Maximum error of ±8 rpm All control characteristics are based on a 4-pole asynchronous motor MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 163 Monitoring of the intermediate circuit voltage ensures that the frequency converter trips if the intermediate circuit voltage is too low or too high. • The frequency converter is protected against earth faults on motor terminals U, V, W. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 164: Efficiency
) is multiplied by the efficiency of the motor (η MOTOR η ) = η x η SYSTEM MOTOR Calculate the efficiency of the system at different loads based on the graph below. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 165: 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 du/dt filter or a sine-wave filter on the output of the frequency converter. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 166: 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. 8.5.3. 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 167: Alarms And Warnings
In the event of an alarm, the frequency converter will have tripped. Alarms must be reset to restart operation once their cause has been rectified. This may be done in four ways: By using the [RESET] control button on the control panel. Via a digital input with the “Reset” function. Via serial communication/optional fieldbus. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 168 . After an alarm or trip, the motor carries on coasting, and the alarm and warning flash on the frequency converter. Once the problem has been rectified, only the alarm continues flashing. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 169 Par. 22-2* Dry Pump Par. 22-2* End of Curve Par. 22-5* Broken Belt Par. 22-6* Start Delayed Par. 22-7* Stop Delayed Par. 22-7* Clock Fault Par. 0-7* Table 8.3: Alarm/Warning code list MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 170 The alarm words, warning words and extended status words can be read out via serial bus or optional field-bus for diagnosis. See also par. Word Word Status Word 16-90 Alarm , par. 16-92 Warning and par. 16-94 Ext. MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 171: Alarm Words
1.8V supply fault 10000000 Reserved 04000000 Brake resistor short circuit 20000000 Reserved 08000000 Brake chopper fault 40000000 Reserved 10000000 Option change 80000000 Reserved 20000000 Drive initialized 40000000 Safe Stop 80000000 Not used MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 172: Warning Words
Low temperature 02000000 Reserved 08000000 Voltage limit 04000000 Reserved 10000000 Encoder loss 08000000 Reserved 20000000 Output frequency limit 10000000 Reserved 40000000 Not used 20000000 Reserved 80000000 Not used 40000000 Reserved 80000000 Reserved MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 173: 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.B7.02 - VLT ® is a registered Danfoss trademark...
Page 174: Fault Messages
WARNING 23, Internal fans: To check whether the supply voltage matches the frequency converter, External fans have failed due to defect hardware or fans not mounted. 3.1 General Specifications MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 175 The frequency ALARM 38, Internal fault: converter still works, but without the brake function. Turn off the fre- Contact your local Danfoss supplier. quency converter replace...
Page 176 Date and time has not been set or any back up mounted has failed. See parameter group 0-7*. WARNING 200, Fire Mode: The input command Fire Mode is active. See parameter group 24-0* MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 177: Index
Brake Power 7, 45 Brake Resistor Brake Resistor Cabling Brake Resistor Calculation Brake Resistors Braking Time Branch Circuit Protection Break-away Torque Building Management System Building Management System, Bms Bypass Frequency Ranges MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 178 Derating For Installing Long Motor Cables Or Cables With Larger Cross-section Derating For Low Air Pressure Derating For Running At Low Speed Devicenet Differential Pressure Digital Inputs: Digital Output Direction Of Motor Rotation Disposal Instruction Drive Configurator Du/dt Filters MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 179 High Power Terminal Block Connections High Voltage Test Hold Output Frequency How To Connect A Pc To The Frequency Converter How To Connect To Mains And Earthing For B1 And B2 MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 180 Motor Name Plate Motor Name Plate Data Motor Output Motor Parameters Motor Phases Motor Protection 110, 163 Motor Rotation Motor Thermal Protection Motor Thermal Protection 46, 111 Motor Voltage Motor-generated Over-voltage MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 181 Principle Diagram Profibus Profibus Dp-v1 Programmable Minimum Frequency Setting Programming Order Protection 14, 41, 42 Protection And Features Pt1000 Temperature Sensor Pulse Inputs Pulse Start/stop Pump Impeller Radiated Emission Rated Motor Speed MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 182 Static Pressure In The Duct Status Messages Status Word Stopping Category 0 (en 60204-1) Successful Ama Supply Fan Surroundings: Switches S201, S202, And S801 Switching Frequency Switching On The Output System Status And Operation MG.11.B7.02 - VLT ® is a registered Danfoss trademark...
Page 183 Vibration And Shock Vibrations Voltage Level Vvcplus Warning Against Unintended Start Warning Word 2, 16-93 Warning Word, 16-92 What Is Ce Conformity And Labelling? What Is Covered Ziegler Nichols Tuning Method MG.11.B7.02 - VLT ® is a registered Danfoss trademark...

Danfoss VLT HVAC Drive FC 100 Series Design Manual

1 How to Read this Design Guide

2 Introduction to VLT HVAC Drive

3 VLT HVAC Drive Selection

4 How to Order

5 How to Install

6 Application Examples

7 Installation and Set-Up

8 General Specifications and Troubleshooting

Index

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