3.1.11.1 Ordering Code Numbers and Parts Delivered 3-10 3.1.11.2 Electrical and Mechanical Specifications 3-10 3.1.11.3 Electrical Wiring 3-11 3.1.12 Frame Size F Panel Options 3-11 4 How to Order 4.1 Ordering Form 4.2 Ordering Numbers MG11BB22 - VLT ® is a registered Danfoss trademark...
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6.1.8 BASIC Cascade Controller 6.1.9 Pump Staging with Lead Pump Alternation 6.1.10 System Status and Operation 6.1.11 Fixed Variable Speed Pump Wiring Diagram 6.1.12 Lead Pump Alternation Wiring Diagram 6.1.13 Cascade Controller Wiring Diagram MG11BB22 - VLT ® is a registered Danfoss trademark...
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7.8.6 Data Field 7-12 7.8.7 CRC Check Field 7-12 7.8.8 Coil Register Addressing 7-13 7.8.9 How to Control the Adjustable Frequency Drive 7-15 7.8.10 Function Codes Supported by Modbus RTU 7-15 MG11BB22 - VLT ® is a registered Danfoss trademark...
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7.9.4 Text Blocks 7-16 7.9.5 Conversion Factor 7-16 7.9.6 Parameter Values 7-16 7.10 Examples 7-16 7.11 Danfoss FC Control Profile 7-19 8 General Specifications and Troubleshooting 8.1 Line Power Supply Tables 8.2 General Specifications 8-17 8.3 Efficiency 8-21 8.4 Acoustic noise 8-21 8.5 Peak voltage on motor...
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 This guide can be used with all of such revisions or changes.
Drive Dependent D-TYPE x = Revision number Electro Magnetic Compatibility yy = Language code Electronic Thermal Relay Adjustable frequency drive Danfoss technical literature is available in print from your Gram local Danfoss Sales Office or online at: Hertz www.danfoss.com/BusinessAreas/DrivesSolutions/Documen- Horsepower tations/Technical+Documentation.htm...
The rated motor frequency (nameplate data). See Control commands. References: The motor current. Analog Reference A signal transmitted to the analog inputs 53 or 54, can be The rated motor current (nameplate data). voltage or current. MG11BB22 - VLT ® is a registered Danfoss trademark...
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CT Characteristics Short for Mille Circular Mil, an American measuring unit for Constant torque characteristics used for screw and scroll cable cross-section. 1 MCM ≡ 0.00079 in (0.5067 mm refrigeration compressors. MG11BB22 - VLT ® is a registered Danfoss trademark...
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Restart is prevented until the cause of the fault has disappeared and the trip state is cancelled by activating reset or, in some cases, by being MG11BB22 - VLT ® is a registered Danfoss trademark...
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® How to Read this Design Gui... HVAC Drive Design Guide MG11BB22 - VLT ® is a registered Danfoss trademark...
380–500 V, enclosure A, B and C: At altitudes above 6,561 cation bus may cause death, serious personal injury or ft , please contact Danfoss regarding PELV. damage to the equipment. Consequently, the instructions 380–500 V, enclosure D, E and F: At altitudes above 9,842 in this manual, as well as national and local rules and ft , please contact Danfoss regarding PELV.
Machinery Directive. The Adjustable frequency drive DC link capacitors remain Danfoss uses CE labels in accordance with the directive charged after power has been disconnected. To avoid an and will issue a declaration of conformity upon request.
EMC properties of the appliance, system or installation labeling under the EMC directive either by using rests with the installer. As an aid to the installer, Danfoss CE labeled components or by testing the EMC of has prepared EMC installation guidelines for the Power the system.
Proper ventilation is still required for the internal components of the drive. Contact Danfoss for Liquids can be carried through the air and condense in the additional information. Adjustable frequency drive and may cause corrosion of components and metal parts.
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® Introduction to VLT® HVAC D... HVAC Drive Design Guide Figure 2.1 Diagram showing all electrical terminals. (Terminal 37 present for units with safe stop function only.) MG11BB22 - VLT ® is a registered Danfoss trademark...
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® Introduction to VLT® HVAC D... HVAC Drive Design Guide Figure 2.2 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Adjustable frequency drive are placed in the same installation panel, you can use an non-shielded cable instead of a shielded one. Figure 2.4 Bridge jumper between terminal 37 and 24V DC MG11BB22 - VLT ® is a registered Danfoss trademark...
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Adjustable frequency drive is the optimum energy control system for controlling fan and pump Figure 2.6 The graph is showing fan curves (A, B and C) for systems. reduced fan volumes. MG11BB22 - VLT ® is a registered Danfoss trademark...
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100% a few days each year, while the average is below 80% of the rated flow for the remainder of the year, the amount of energy saved is even greater than 50%. MG11BB22 - VLT ® is a registered Danfoss trademark...
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2.7.4 Comparison of Energy Savings The Danfoss Adjustable frequency drive solution offers major savings compared with traditional energy saving solutions. This is because the Adjustable frequency drive is able to control fan speed according to thermal load on the system and the fact that the Adjustable frequency drive has a built-in facility that enables the Adjustable frequency drive to function as a Building Management System, BMS.
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Figure 2.10 Discharge dampers reduce power consumption somewhat. Inlet guide vans offer a 40% reduction but are expensive to install. The Danfoss Adjustable frequency drive solution reduces energy consumption with more than 50% and is easy to install. MG11BB22 - VLT ®...
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Such motor starters are not required if a Adjustable frequency drive is used. As illustrated in the figure below, a Adjustable frequency drive does not consume more than rated current. 2-12 MG11BB22 - VLT ® is a registered Danfoss trademark...
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The figure shows a fan system made in the traditional way. Energy Direct Digital D.D.C. E.M.S. Management Control system V.A.V. = Variable Air Volume Sensor Sensor P = Pressure = Temperature Table 2.7 MG11BB22 - VLT ® is a registered Danfoss trademark 2-13...
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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.
PID controller of the HVAC Adjustable frequency drive can be used to eliminate the need for additional controllers. Pressure signal Frequency Cooling coil Heating coil converter VAV boxes Filter Supply fan Pressure transmitter Flow Frequency converter Return fan Flow Figure 2.15 MG11BB22 - VLT ® is a registered Danfoss trademark 2-15...
Several features of the Danfoss HVAC dedicated Adjustable frequency drive 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.
The adjustable frequency drives can also be used to turn the fan on and off as needed. Several features of the Danfoss HVAC dedicated Adjustable frequency drive, the HVAC Adjustable frequency drive 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 insignificant.
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® Introduction to VLT® HVAC D... HVAC Drive Design Guide Frequency converter Water Inlet Temperature Sensor BASIN Water Outlet Conderser Water pump Supply Figure 2.17 2-18 MG11BB22 - VLT ® is a registered Danfoss trademark...
Frequency converter Water Inlet Flow or pressure sensor BASIN Water Outlet Throttling valve Condenser Water pump Supply Figure 2.18 MG11BB22 - VLT ® is a registered Danfoss trademark 2-19...
In the event, the flow rate needs to be increased later in the systems life, the Adjustable frequency drive can simply increase the pump speed instead of requiring a new pump impeller. 2-20 MG11BB22 - VLT ® is a registered Danfoss trademark...
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® Introduction to VLT® HVAC D... HVAC Drive Design Guide Flowmeter Flowmeter Frequency converter Frequency converter Figure 2.19 MG11BB22 - VLT ® is a registered Danfoss trademark 2-21...
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 Adjustable frequency drive running multiple pumps in parallel. Frequency converter Frequency converter Figure 2.20 2-22 MG11BB22 - VLT ® is a registered Danfoss trademark...
▼ using the LCP arrow keys up [ ] and down [ The Danfoss EC+ concept provides the option of using high efficiency PM motors in an IEC standard frame size After pressing the [Auto On] key, the Adjustable frequency operated by Danfoss adjustable frequency drives.
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While the default values for the adjustable frequency 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. MG11BB22 - VLT ® is a registered Danfoss trademark 2-25...
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Min [13] is selected, Zone 2’s setpoint and feedback is sent to the PID controller, since this has the larger difference (feedback is lower than setpoint, resulting in a positive difference). 2-26 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Since the square root of pressure is proportional to flow, the square root of the pressure signal yields a value proportional to the flow. This is shown in Figure 2.26. Figure 2.26 Feedback Conversion MG11BB22 - VLT ® is a registered Danfoss trademark 2-27...
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® Introduction to VLT® HVAC D... HVAC Drive Design Guide 2.8.8 Reference Handling Details for Open-loop and Closed-loop Operation Figure 2.27 Block Diagram Showing Remote Reference 2-28 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Temperature feedback via transmitter (14°–104°F [-10°–+40°C], 4–20 mA) connected to terminal 54. Switch S202 behind the LCP set to ON (current input). MG11BB22 - VLT ® is a registered Danfoss trademark 2-29...
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® Introduction to VLT® HVAC D... HVAC Drive Design Guide Figure 2.29 2-30 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Adjust the drive’s closed-loop controller, if needed. 20-93 See Optimization of the PID Controller below. 20-94 8) Finished! Save the parameter setting to the LCP for safe keeping 0-50 All to LCP [1] Table 2.9 MG11BB22 - VLT ® is a registered Danfoss trademark 2-31...
If a shielded cable is used for serial communication bus, relay, control cable, signal interface and brake, the shield must be mounted on the enclosure at both ends. In some situations, however, it will be necessary to break the shield to avoid current loops. 2-32 MG11BB22 - VLT ® is a registered Danfoss trademark...
1000 V or rated current equal to or above 400 A or An EMC plan should be made. intended for use in complex systems. Table 2.10 Emission Requirements MG11BB22 - VLT ® is a registered Danfoss trademark 2-33...
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EN/IEC 61000-6-3 Emission standard for residential, commercial Class B (home and office) and light industrial environments. Second environment EN/IEC 61000-6-4 Emission standard for industrial environments. Class A Group 1 (industrial environment) Table 2.11 2-34 MG11BB22 - VLT ® is a registered Danfoss trademark...
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H1 - Integrated EMC filter. Fulfill Class A1/B H2 - No additional EMC filter. Fulfill Class A2 H3 - Integrated EMC filter. Fulfill class A1/B (Frame size A1 only) H4 - Integrated EMC filter. Fulfill class A1 MG11BB22 - VLT ® is a registered Danfoss trademark 2-35...
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+ ... + greater than or equal to specified above. % of U) Other power sizes can be connected to the public supply network by consultation with the distribution network operator. 2-36 MG11BB22 - VLT ® is a registered Danfoss trademark...
380–500V, enclosure A, B and C: At altitudes above 6561 ft higher isolation and the relevant test as described in EN [2 km], please contact Danfoss regarding PELV. 61800-5-1. 380–500V, enclosure D, E and F: At altitudes above 9842 ft The PELV galvanic isolation can be shown in six locations [3 km], please contact Danfoss regarding PELV.
In such applications, dynamic braking with a braking resistor may be utilized. Using a braking resistor ensures that the energy is absorbed in the resistor and not in the Adjustable frequency drive. 2-40 MG11BB22 - VLT ® is a registered Danfoss trademark...
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(as part of the total cycle NOTE! time) Make sure that the brake resistor can cope with a voltage of 410V, 820V or 975V, unless Danfoss brake resistors are Load used. Danfoss recommends the brake resistance R , i.e., one...
Back-EMF from PM motor operation. If coasted at high rpm, the PM motor back-EMF may potentially exceed the maximum voltage tolerance of the adjustable frequency drive and cause damage. To help prevent this, the value of 2-42 MG11BB22 - VLT ® is a registered Danfoss trademark...
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14-25 Trip Delay at Torque Limit. 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 charac- teristic is shown in Figure 2.38...
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That means when the motor is heated up, the ETR timer controls how long the motor may run at that temperature before it is 2-44 MG11BB22 - VLT ® is a registered Danfoss trademark...
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ETR is activated in 1-90 Motor Thermal Protection and is controlled in 4-16 Torque Limit Motor Mode. The time before the torque limit warning trips the Adjustable frequency drive is set in 14-25 Trip Delay at Torque Limit. MG11BB22 - VLT ® is a registered Danfoss trademark 2-45...
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® Introduction to VLT® HVAC D... HVAC Drive Design Guide 2-46 MG11BB22 - VLT ® is a registered Danfoss trademark...
® 3 VLT HVAC Drive Selection 3.1 Options and Accessories Danfoss offers a wide range of options and accessories for adjustable frequency drives. 3.1.1 Mounting Option Modules in Slot B The power to the Adjustable frequency drive must be disconnected.
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3.1.6 Analog Outputs - Terminal X30/5+8 (NPN) Parameters for set-up: 6-6* and 16-77 Number of analog Output signal Tolerance Max.imp 24V DC outputs level edance Figure 3.4 Principle Diagram 0/4–20mA ± 0.1mA < 500Ω Table 3.4 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Label for covering access to switches S201, S202 and S801 • Cable strips for fastening cables to relay module DISMOUNT RELAY CARD TO ACCESS RS485 TERMINATION (S801) OR CURRENT/VOLTAGE SWITCHES (S201, S202) Figure 3.5 MG11BB22 - VLT ® is a registered Danfoss trademark...
Select the relay functions in 5-40 Function Relay [6-8], 5-41 On Delay, Relay [6-8] and 5-42 Off Delay, Relay [6-8]. NB! (Index [6] is relay 7, index [7] is relay 8, and index [8] is relay 9) Relay 7 Relay 8 Relay 9 Table 3.6 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Figure 3.8 Connection to 24V Backup Supplier (A2-A3). Attach the terminal cover and the LCP or blind cover. When MCB 107, 24V backup option is supplying the control circuit, the internal 24V supply is automatically disconnected. MG11BB22 - VLT ® is a registered Danfoss trademark...
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[0°C]. Specifications according to IEC 60751 outputs for operating dampers and valve servos. 3 x analog outputs supplying 0–10V DC. • Support extended PID controllers with I/Os for setpoint inputs, transmitter/sensor inputs and outputs for servos. MG11BB22 - VLT ® is a registered Danfoss trademark...
For information on mounting and installation of the Analog outputs are scalable by parameters for each option, please see earlier in this section. See also output. 6 Application Examples for different application possibilities. MG11BB22 - VLT ® is a registered Danfoss trademark...
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FC 102 together with the MCB 112 can now be used with motors in potentially explosive atmospheres. See the Instruction Manual for the MCB 112 for more information. ATmosphère EXplosive (ATEX) Table 3.9 MG11BB22 - VLT ® is a registered Danfoss trademark...
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2 for maintenance cycle of 2 years 1 for maintenance cycle of 3 years PFD (for yearly functional test) 4.10 *10 λ + λ 8494 FIT λ 934 FIT Ordering number 130B1137 MG11BB22 - VLT ® is a registered Danfoss trademark...
PT100/1000 temperature sensors. One in front, one in the back end bearing, and one in the motor windings. Standard version code no: 130B1172. The Danfoss Option MCB 114 supports 2- or 3-wire sensors Coated version code no: 130B1272. with individual temperature limits for under/over temperature.
A 380–480/ 500 V drive resistance will initially be set to the 525 V tap and a 525–690 V drive • Fault Memory MG11BB22 - VLT ® is a registered Danfoss trademark 3-11...
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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 adjustable frequency drives. See the section Control with brake function for the dimensioning of brake resistors.
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If the enclosure kit is used, an IP20 unit is upgraded to comply with enclosure IP21/ 41 top/TYPE 1. ® The IP41 top can be applied to all standard IP20 VLT HVAC Drive variants. MG11BB22 - VLT ® is a registered Danfoss trademark 3-13...
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15.4 [391] 13.3 [337] * If option A/B is used, the depth will increase (see section Mechanical Dimensions for details) Table 3.15 A2, A3, B3 B4, C3, C4 Table 3.16 3-14 MG11BB22 - VLT ® is a registered Danfoss trademark...
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(A). B3 Enclosure B4 - C3 - C4 Enclosure Table 3.17 NOTE! Side-by-side installation is not possible when using the IP 21/ IP 4X/ TYPE 1 Enclosure Kit MG11BB22 - VLT ® is a registered Danfoss trademark 3-15...
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The length is unfortu- nately limited because the filter does not reduce leakage currents in the cables. 3-16 MG11BB22 - VLT ® is a registered Danfoss trademark...
Enclosure 13-15 Order the Adjustable frequency drive as either standard or Enclosure type with integral options by sending a type code string describing the product to the local Danfoss sales office, i.e.: Enclosure class Control supply voltage Hardware configuration FC-102P18KT4E21H1XGCXXXSXXXXAGBKCXXXXDX...
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1: With line power disconnect switch (IP55 only) Line power option 8: Line power disconnect and Load Sharing D: Load Sharing See Chapter 8 for max. cable sizes. MG11BB22 - VLT ® is a registered Danfoss trademark...
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BO: MCB 109 Analog I/O option B2: MCB 112 PTC Thermistor Card B4: MCB 114 Sensor input option options 33-34 CX: No options C1 options X: No options C option software 36-37 XX: Standard software MG11BB22 - VLT ® is a registered Danfoss trademark...
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N: IEC emergency stop push-button with brake IGBT and brake terminals P: IEC emergency stop push-button with regeneration terminals Display G: Graphical Local Control Panel LCP Coating PCB C: Coated PCB MG11BB22 - VLT ® is a registered Danfoss trademark...
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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. Table 4.4 MG11BB22 - VLT ® is a registered Danfoss trademark...
Profibus top Top entry kit for Profibus 176F1742 Table 4.5 Options can be ordered as factory built-in options, entry kit connection - D + E enclosures see ordering information. MG11BB22 - VLT ® is a registered Danfoss trademark...
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24 V DC backup 130B1208 External Options Ethernet IP Ethernet master Table 4.6 For information on serial communication bus and application option compatibility with older software versions, please contact your Danfoss supplier. MG11BB22 - VLT ® is a registered Danfoss trademark...
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130B0047 Accessory bag C3 Accessory bag, frame size C3 130B0981 Accessory bag C4 Accessory bag, frame size C4 130B0982 Small Accessory bag C4 Accessory bag, frame size C4 130B0983 Table 4.7 MG11BB22 - VLT ® is a registered Danfoss trademark...
177R0091 F Frames 176F1784 Table 4.8 4.2.3 Ordering Numbers: Harmonic Filters Harmonic filters are used to reduce line harmonics. • AHF 010: 10% current distortion • AHF 005: 5% current distortion MG11BB22 - VLT ® is a registered Danfoss trademark...
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P1M0 2x130B2318 2x130B2292 1700 Table 4.14 When using sine-wave filters, the switching frequency should comply with filter specifications in 14-01 Switching Frequency. NOTE! See also Output Filter Design Guide, MG.90.Nx.yy MG11BB22 - VLT ® is a registered Danfoss trademark 4-13...
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2x130B2382 2x130B2338 1479 Table 4.15 NOTE! When using sine-wave filters, the switching frequency should comply with filter specifications in 14-01 Switching Frequency. NOTE! See also Output Filter Design Guide, MG.90.Nx.yy 4-14 MG11BB22 - VLT ® is a registered Danfoss trademark...
Accessory bags containing necessary brackets, screws and connectors are included with the Adjustable frequency drive upon delivery. * IP21 can be established with a kit as described in the section: IP 21/ IP 4X/ TYPE 1 Enclosure Kit in the Design Guide. Table 5.1 MG11BB22 - VLT ® is a registered Danfoss trademark...
® How to Install HVAC Drive Design Guide 5.1.2 Mechanical Dimensions MG11BB22 - VLT ® is a registered Danfoss trademark...
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® How to Install HVAC Drive Design Guide MG11BB22 - VLT ® is a registered Danfoss trademark...
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® How to Install HVAC Drive Design Guide MG11BB22 - VLT ® is a registered Danfoss trademark...
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® How to Install HVAC Drive Design Guide 5.1.3 Accessory Bags MG11BB22 - VLT ® is a registered Danfoss trademark...
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Table 5.7 When mounting enclosure sizes A5, B1, B2, B3, B4, C1, C2, C3 and C4 on a non-solid back wall, the adjustable frequency drive must be provided with a backplate A due to insufficient cooling air over the heatsink. MG11BB22 - VLT ® is a registered Danfoss trademark...
The service life of the Adjustable frequency drive is reduced if derating for ambient temperature is not taken into account. 5.1.7 Field Mounting IP 21/IP 4X top/TYPE 1 kits or IP 54/55 units are recommended. MG11BB22 - VLT ® is a registered Danfoss trademark...
2) Cable dimensions above 25 hp [18.5 kW] [35 mm ] and below 30 hp [22 kW] ≤ [10 mm 3) For data on the F frame sizes, consult the FC 100 High Power Instruction Manual. MG11BB22 - VLT ® is a registered Danfoss trademark...
How to Install HVAC Drive Design Guide 5.2.2 Electrical Installation and Control Cables Figure 5.7 Diagram Showing all Electrical Terminals. (Terminal 37 Present for Units with Safe Stop Function only.) 5-10 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Adjustable frequency drive and to the metal cabinet of the motor. • Make the shield connections with the largest possible surface area (cable clamp). This is done MG11BB22 - VLT ® is a registered Danfoss trademark 5-11...
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Ø26.3 solutions are possible. Figure 5.8 Cable entry holes for enclosure A5. The suggested use of the holes are purely recommendations and other solutions are possible. 5-12 MG11BB22 - VLT ® is a registered Danfoss trademark...
Figure 5.14 Cable entry holes for enclosure C2. The suggested use of the holes are purely recommendations and other solutions are possible. Figure 5.15 Example of Proper Installation of Connector Plate. Legend: MG11BB22 - VLT ® is a registered Danfoss trademark 5-13...
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HVAC Drive Design Guide 5.2.8 Fuses Short-circuit protection: Danfoss recommends using the fuses/circuit breakers listed in and to protect service personnel and property in case of A Adjustable frequency drive that works correctly limits the component break-down in the Adjustable frequency drive.
1) Max. fuses - see national/international regulations for selecting an applicable fuse size. Table 5.10 Non-UL Fuses 200V to 480V If UL/cUL is not to be complied with, Danfoss recommends using the following fuses, which will ensure compliance with EN50178:...
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KTS fuses from Bussmann may substitute KTN for 240V adjustable frequency drives. FWH fuses from Bussmann may substitute FWX for 240V adjustable frequency drives. KLSR fuses from LITTEL FUSE may substitute for KLNR fuses for 240V adjustable frequency drives. MG11BB22 - VLT ® is a registered Danfoss trademark 5-17...
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L50S fuses from LITTEL FUSE may substitute for L50S fuses for 240V adjustable frequency drives. A6KR fuses from FERRAZ SHAWMUT may substitute A2KR for 240V adjustable frequency drives. A50X fuses from FERRAZ SHAWMUT may substitute A25X for 240V adjustable frequency drives. 5-18 MG11BB22 - VLT ® is a registered Danfoss trademark...
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P630 170M6013 900 A, 6.9URD33 20 630 32.900 700 V D08A090 D, E and F KTK-4 4 A, 600 V Table 5.22 SMPS Fuse Table 5.19 Frame Size E, 525–690V 5-20 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Class J Dual 525–690 Element, Time Delay, 20 A P500- 10–16 A LPJ-25 SP 25 A, 600 V Any listed P1M0, or SPI Class J Dual 380–480 Element, Time Delay, 25 A MG11BB22 - VLT ® is a registered Danfoss trademark 5-21...
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Pull out the cable. Max. 0.015 x 0.1 in [0.4 x 2.5 mm] 9 - 10 mm (0.37 in) Table 5.29 Figure 5.22 Control Terminals (all Enclosures) Figure 5.23 5-22 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Connect terminals 18 and 27 to +24 V (terminal 12/13) Default settings: 18 = latched start 27 = stop inverse Figure 5.24 Terminal 37 available with Safe Stop Function only! MG11BB22 - VLT ® is a registered Danfoss trademark 5-23...
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(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. NOTE! Control cables must be shielded/armored. 5-24 MG11BB22 - VLT ® is a registered Danfoss trademark...
Motor Current 1-24 Motor Current S801 (Bus termination) = OFF Motor Nominal Speed 1-25 Motor Nominal NOTE! Speed It is recommended to only change switch position at Table 5.30 power off. MG11BB22 - VLT ® is a registered Danfoss trademark 5-25...
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BAUER D-7 3734 ESLINGEN description of the alarm will assist you in trouble- 3~ MOTOR NR. 1827421 2003 shooting. If you contact Danfoss Service, make sure to mention number and alarm description. S/E005A9 Unsuccessful AMA is often caused by incorrectly registered...
The connector located on the power card provides the AC line voltage connection for the cooling fans. The fans are factory-equipped to be supplied from a common AC line (jumpers between 100-102 and 101-103). If an external 5-28 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Relay 1 and relay 2 are programmed in 5-40 Function Relay, 5-41 On Delay, Relay, and 5-42 Off Delay, Relay. Additional relay outputs can be added to the Adjustable frequency drive by using option module MCB 105. Figure 5.31 MG11BB22 - VLT ® is a registered Danfoss trademark 5-29...
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Provide further motor protection with, for LC lter example, thermistors in each motor or individual thermal relays (circuit breakers are not a suitable means of protection). Figure 5.32 5-30 MG11BB22 - VLT ® is a registered Danfoss trademark...
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360° connection in the motor and the Adjustable frequency drive The electronic thermal relay in the Adjustable frequency drive has received UL-approval for single motor protection, when 1-90 Motor Thermal Protection is set for ETR Trip and MG11BB22 - VLT ® is a registered Danfoss trademark 5-31...
If more than one Adjustable frequency drive is connected to a master, use parallel connections. RS 232 RS 485 Figure 5.34 Figure 5.35 For control cable connections, see section on Control Terminals. 5-32 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Connect a PC to the unit via the USB com port. code number 130B1031. Open PC-based Configuration Tool MCT 10 Set-up Software MCT 31 can also be downloaded from the Danfoss Internet: http://www.danfoss.com/BusinessAreas/DrivesSo- Choose “Open”. Stored files will be shown. lutions/Softwaredownload/DDPC+Software+Program.htm.
See 2.9.3 EMC (Emission). Test Results (Emission). Good engineering practice to ensure EMC-correct electrical installation: • Use only braided shielded/armored motor cables and braided shielded/armored control cables. The 5-34 MG11BB22 - VLT ® is a registered Danfoss trademark...
HVAC Drive Design Guide Figure 5.36 EMC-compatible Electrical Installation of a Adjustable Frequency Drive in Cabinet. 5.7.2 Use of EMC-Correct Cables Danfoss recommends braided shielded/armored cables to optimize EMC immunity of the control cables and the EMC emission from the motor cables.
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Twisted copper wire or armored steel wire cable. Single-layer braided copper wire with varying percentage shield coverage. This is the typical Danfoss reference cable. Double-layer braided copper wire. Twin layer of braided copper wire with a magnetic, shielded/armored intermediate layer.
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If RCD relays are used, local regulations must be observed. Relays must be suitable for protection of 3-phase equipment with a bridge rectifier and for a brief discharge on power-up see 2.11 Ground Leakage Current for further information. MG11BB22 - VLT ® is a registered Danfoss trademark 5-37...
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® How to Install HVAC Drive Design Guide 5-38 MG11BB22 - VLT ® is a registered Danfoss trademark...
5-12 Terminal 27 Digital Input = coast inverse 5-12 Terminal 27 Digital Input = Stop inverse (default) Figure 6.1 Terminal 37: Available only with Safe Stop Function Figure 6.2 Terminal 37: Available only with Safe Stop Function MG11BB22 - VLT ® is a registered Danfoss trademark...
For the AMA to determine the motor parameters user defined actions (see 13-52 SL Controller Action) optimally, enter the correct motor nameplate executed by the SLC when the associated user defined MG11BB22 - VLT ® is a registered Danfoss trademark...
Set the ramping times in 3-41 Ramp 1 Ramp Up Time and 3-42 Ramp 1 Ramp Down Time to the desired times t acc × n norm ( par . 1 − 25 ) t ramp = ref RPM Set term 27 to No Operation (5-12 Terminal 27 Digital Input) MG11BB22 - VLT ® is a registered Danfoss trademark...
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Set the Smart Logic Control in 13-00 SL Controller Mode to Start / stop command is applied on terminal 18. If stop signal is applied, the Adjustable frequency drive will ramp down and go into free mode. MG11BB22 - VLT ® is a registered Danfoss trademark...
The lead pump continues to ramp up and then pump can take place at a command signal or at staging ramps down to a stop and the two relays are cut out. (adding another pump). MG11BB22 - VLT ® is a registered Danfoss trademark...
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. MG11BB22 - VLT ® is a registered Danfoss trademark...
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• RELAY 2 controls contactor K4 for on/off control of the fixed speed pump. • At alternation, both relays de-energize, and RELAY 2 will be energized as the first relay. MG11BB22 - VLT ® is a registered Danfoss trademark...
Ramps up if SYSTEM START is active Not affected Coast (EMERGENCY STOP) Coast to stop Cut out (built in relays are de-energized) External Interlock Coast to stop Cut out (built in relays are de-energized) Table 6.1 MG11BB22 - VLT ® is a registered Danfoss trademark...
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De-staging (if running) command) or stays in operation if already running. Ramps down De-staging Auto On Starts and stops according to commands Staging/De-staging sent via terminals or serial bus. Table 6.2 MG11BB22 - VLT ® is a registered Danfoss trademark...
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® Application Examples HVAC Drive Design Guide 6-10 MG11BB22 - VLT ® is a registered Danfoss trademark...
+), while terminal 69 is connected to the N signal (TX-,RX-). See drawings in 5.7.3 Grounding of Shielded/Armored Control Cables If more than one Adjustable frequency drive is connected to a master, use parallel connections. MG11BB22 - VLT ® is a registered Danfoss trademark...
Response Delay transmitting a request and receiving a response. 8-37 Maximum Specify a maximum delay time between Inter-Char Delay two received bytes to ensure timeout if transmission is interrupted. Table 7.2 MG11BB22 - VLT ® is a registered Danfoss trademark...
Adjustable frequency drive when its internal PID adjustable frequency drive bus or standard bus, is the controller is used. Danfoss standard serial communication bus. It defines an access technique according to the master-slave principle for communications via a serial bus.
A byte denoting the message length (LGE) A byte denoting the Adjustable frequency drive address (ADR) A number of data bytes (variable, depending on the type of message) follows. A data control byte (BCC) completes the message. MG11BB22 - VLT ® is a registered Danfoss trademark...
The PCD is made up of a data block of 4 bytes (two words) and contains: Control word and reference value (from master to slave) Status word and present output frequency (from slave to master) MG11BB22 - VLT ® is a registered Danfoss trademark...
. 15-30 Alarm Log: Error Code. The index consists of 2 bytes, a low byte and a high byte. Only the low byte is used as an index. MG11BB22 - VLT ® is a registered Danfoss trademark...
To write a text via the PWE block, set the parameter command (AK) to ’F’ Hex. The index characters high-byte must be “5”. high Read text Fx xx 04 00 Write text Fx xx 05 00 Figure 7.11 MG11BB22 - VLT ® is a registered Danfoss trademark...
High Limit [Hz] IND = 0000 Hex PWEHIGH = 0000 Hex PWELOW = 03E8 Hex - Data value 1000, corresponding to 100 Hz, see Conversion. The telegram will look like this: MG11BB22 - VLT ® is a registered Danfoss trademark...
7.6 Modbus RTU Overview high 7.6.1 Assumptions Figure 7.12 Danfoss assumes that the installed controller supports the NOTE! interfaces in this document, and strictly observes all requirements and limitations stipulated in the controller 4-14 Motor Speed High Limit [Hz] is a single word, and the and Adjustable frequency drive.
Adjustable frequency drive when its internal PI controller is used. 7.7 Network Configuration 7.7.1 Adjustable Frequency Drive with Modbus RTU To enable Modbus RTU on the Adjustable frequency drive, set the following parameters MG11BB22 - VLT ® is a registered Danfoss trademark 7-11...
The individual slave devices are assigned addresses in the done, the low-order byte of the field is appended first, range of 1 – 247. (0 is reserved for broadcast mode, which 7-12 MG11BB22 - VLT ® is a registered Danfoss trademark...
Not in current limit Current limit No reversing Reversing No thermal warning Thermal warning Adjustable frequency drive control word (FC profile) Adjustable frequency drive status word (FC profile) Table 7.15 Table 7.16 MG11BB22 - VLT ® is a registered Danfoss trademark 7-13...
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Output data: Adjustable frequency drive status word register (STW). 50210 Output data: Adjustable frequency drive main actual value register (MAV). Table 7.17 * Used to specify the index number to be used when accessing an indexed parameter. 7-14 MG11BB22 - VLT ® is a registered Danfoss trademark...
The Coil 65 decimal determines whether data written to the Adjustable frequency drive are stored in EEPROM and RAM (coil 65 = 1) or only in RAM (coil 65 = 0). MG11BB22 - VLT ® is a registered Danfoss trademark 7-15...
The following examples illustrate various Modbus RTU Data (Coils 40-33) commands. If an error occurs, please refer to the Exception Data (Coils 48-41) 06 (STW=0607hex) Codes section. Error Check (CRC) Table 7.22 7-16 MG11BB22 - VLT ® is a registered Danfoss trademark...
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ON or OFF. When broadcast the function forces the Example: Read 3-03 Maximum Reference, register 03030. same coil references in all attached slaves. The query message specifies the coils 17 to 32 (speed setpoint) to be forced. MG11BB22 - VLT ® is a registered Danfoss trademark 7-17...
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The query message specifies the register reference to be preset. Register addresses start at zero, i.e., register 1 is addressed as 0. Example: Write to 1-00 Configuration Mode, register 1000. 7-18 MG11BB22 - VLT ® is a registered Danfoss trademark...
3-10 Preset Error Check (CRC) Reference [0] 3-10 Preset Table 7.32 Reference [1] 3-10 Preset 7.11 Danfoss FC Control Profile Reference [2] 3-10 Preset 7.11.1 Control Word According to FC Reference [3] Profile (8-10 Control Profile = FC profile) Table 7.34...
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Select. Bit 15 causes reversing only when Ser. communi- Bit 08 = ’1’: The output frequency is determined by cation, Logic or or Logic and is selected. 3-19 Jog Speed [RPM]. 7-20 MG11BB22 - VLT ® is a registered Danfoss trademark...
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0 Hz. Bit 02 = ’0’: The Adjustable frequency drive releases the motor. Bit 02 = ’1’: The Adjustable frequency drive starts the motor with a start command. MG11BB22 - VLT ® is a registered Danfoss trademark 7-21...
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All bits in the STW are set to ’0’ if the connection between the Interbus option and the Adjustable frequency drive is lost, or an internal communication problem has occurred. 7-22 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Par.3-00 set to Reverse Forward (1) -max- +max Par.3-03 Par.3-03 Max reference Max reference 100% (0hex) (4000hex) Par.3-00 set to Forward (0) min-max Par.3-02 Par.3-03 Min reference Max reference Figure 7.19 MG11BB22 - VLT ® is a registered Danfoss trademark 7-23...
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® RS-485 Installation and Set... HVAC Drive Design Guide 7-24 MG11BB22 - VLT ® is a registered Danfoss trademark...
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® General Specifications and ... HVAC Drive Design Guide 8.1.2 Line Power Supply 3 x 525–690V AC 8-10 MG11BB22 - VLT ® is a registered Danfoss trademark...
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575/690V) [A] Continuous KVA 1056 1255 1409 (at 550V) [KVA] Continuous KVA 1056 1255 1409 (at 575V) [KVA] Continuous KVA 1016 1129 1267 1506 1691 (at 690V) [KVA] Table 8.14 8-14 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Motors with lower efficiency will also add to the power loss in the Adjustable frequency drive and opposite. If the switching frequency is increased comed to the default setting, the power losses may rise significantly. LCP and MG11BB22 - VLT ® is a registered Danfoss trademark 8-15...
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(Though typical, only 4 W 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%). 8-16 MG11BB22 - VLT ® is a registered Danfoss trademark...
Voltage level, logic'1' PNP > 10 V DC Voltage level, logic '0' NPN > 19 V DC Voltage level, logic '1' NPN < 14 V DC Maximum voltage on input 28 V DC MG11BB22 - VLT ® is a registered Danfoss trademark 8-17...
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Accuracy on analog output Max. error: 0.8% of full scale Resolution on analog output 8 bit The analog output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. 8-18 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Control card, 10 V DC output Terminal number Output voltage 10.5V±0.5V Max. load 25mA The 10V DC supply is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. MG11BB22 - VLT ® is a registered Danfoss trademark 8-19...
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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 ground. Use only isolated laptop/PC as connection to the USB connector on Adjustable frequency drive or an isolated USB cable/drive. 8-20 MG11BB22 - VLT ® is a registered Danfoss trademark...
Figure 8.2. The factor in this DC intermediate circuit coils. graph must be multiplied with the specific efficiency factor listed in the specification tables: Integrated fan. MG11BB22 - VLT ® is a registered Danfoss trademark 8-21...
With a typical full load current of EFF 2 motors, full output shaft power can be maintained up to 122°F [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 Figure 8.3 Derating of output current versus altitude at T...
Therefore, if the motor is to be run continuously at an RPM value lower than half of the rated value, the motor must 8-28 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Hardware mismatch Short Circuit Control word timeout 8-04 Start failed Internal Fan Fault External Fan Fault 14-53 Brake resistor short-circuited Brake resistor power limit 2-13 Brake chopper short-circuited Brake check 2-15 MG11BB22 - VLT ® is a registered Danfoss trademark 8-29...
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Safe Stop Auto Restart Power Unit Set-up Illegal PS config Drive Initialized to Default Value Analog input 54 wrong settings NoFlow 22-2* Dry Pump 22-2* End of Curve 22-5* Broken Belt 22-6* 8-30 MG11BB22 - VLT ® is a registered Danfoss trademark...
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A trip lock is an action when an Table 8.45 alarm occurs, which may cause damage to Adjustable frequency drive or connected parts. A trip lock situation can only be reset by power cycling. MG11BB22 - VLT ® is a registered Danfoss trademark 8-31...
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The alarm words, warning words and extended status words can be read out via serial bus or optional serial communication bus for diagnosis. See also 16-90 Alarm Word, 16-92 Warning Word and 16-94 Ext. Status Word. 8-32 MG11BB22 - VLT ® is a registered Danfoss trademark...
Adjustable frequency drive voltage rating. The unit is still continuous current rating, the counter should active. decrease. See the derating section in the Design Guide for more details if a high switching frequency is required. 8-36 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Mode. 14-25 Trip Delay at Torque Limit can change this from a warning only condition to a warning followed by an 15-41 Power Section alarm. 15-42 Voltage 15-43 Software Version 15-45 Actual Typecode String 15-49 SW ID Control Card MG11BB22 - VLT ® is a registered Danfoss trademark 8-37...
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The fan warning Incorrect airflow clearance above and below the can be disabled in 14-53 Fan Monitor ([0] Disabled). Adjustable frequency drive Blocked airflow around the Adjustable frequency drive. 8-38 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Check the load connected to terminal 29 or remove short- Check for loose or missing wiring circuit connection. Check 5-00 Digital I/O Mode and It may be necessary to contact your Danfoss supplier or 5-02 Terminal 29 Mode. service department. Note the code number for further WARNING 42, Overload of digital output on X30/6 or troubleshooting directions.
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Check that the ambient operating temperature is stopping) the Adjustable frequency drive will trip. within limits. ALARM 50, AMA calibration failed • Check for clogged filters. Contact your Danfoss supplier or Danfoss Service • Check fan operation. Department. • Check the control card.
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This could indicate a system and reset the Adjustable frequency drive after the locked rotor. Inspect the motor for proper operation. fault has been cleared. MG11BB22 - VLT ® is a registered Danfoss trademark 8-41...
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Reset the Adjustable frequency drive for normal operation. WARNING 251, New type code The power card or other components have been replaced and the type code changed. Reset to remove the warning and resume normal operation. 8-42 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Resistors................2-12, 3-16 Copyright, Limitation Of Liability And Revision Rights..0-1 Braking Braking..................... 7-38 Cos Φ Compensation..............1-12 Energy..................0-4, 1-42 Current Rating................... 7-36 Branch Circuit Protection............... 4-15 Break-away Torque................0-3 MG11BB22 - VLT ® is a registered Danfoss trademark...
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IEC Emergency Stop With Pilz Safety Relay......2-12 Status Word..................7-35 IGVs......................1-15 Status Word 2................7-35 Immunity Requirements..............1-37 External 24V DC Supply................. 2-5 Index (IND)..................... 6-7 Fan Supply..................4-28 Input Terminals................. 7-36 MG11BB22 - VLT ® is a registered Danfoss trademark...
Parallel Connection Of Motors............. 4-30 Parameter Number (PNU)................. 6-7 Values....................6-16 Payback Period.................. 1-12 PC Software Tools................4-33 PC-based Configuration Tool MCT 10 Set-up Software..4-33 Peak Voltage On Motor..............7-22 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Switches S201, S202, And S801........... 4-25 Residual Current Device..............4-37 Switching Frequency................7-36, 4-12 Return Fan................... 1-15 On The Output................1-42 Rise Time....................7-22 Symbols....................0-2 RS-485 Bus Connection..............4-32 System Status And Operation............5-6 MG11BB22 - VLT ® is a registered Danfoss trademark...
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Varying Flow Over 1 Year............... 1-12 VAV......................1-15 Vibration And Shock................1-4 Vibrations.................... 1-17 Voltage Level..................7-17 VVCplus....................0-5 Warning Against Unintended Start............1-1 Words....................7-34 What Is CE Conformity And Labeling?..........1-2 Is Covered..................1-2 MG11BB22 - VLT ® is a registered Danfoss trademark...
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