Danfoss VLT HVACDrive Instruction Manual
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Danfoss VLT HVACDrive Instruction Manual

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®
VLT
HVAC Drive Instruction Manual
Contents
Commissioning
MG.11.AB.22 - VLT
®
is a registered Danfoss trademark
Contents
1-1
1-2
2-1
2-1
2-3
2-3
2-4
2-5
2-6
3-1
3-1
3-3
4-1
4-1
4-2
4-3
4-9
4-17
4-21
4-22
4-24
4-29
5-1
5-1
5-1
5-6
5-8
5-8
5-8
5-9
6-1
6-1
6-7

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Summary of Contents for Danfoss VLT HVACDrive

  • Page 1 Application Examples Start/Stop Pulse Start/Stop Automatic Motor Adaptation (AMA) 6 How to Operate the Adjustable Frequency Drive How to Operate the Graphical LCP (GLCP) How to Operate the Numeric LCP (NLCP) MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 2: Table Of Contents

    26-** Analog I / O Option MCB 109 7-71 8 Troubleshooting Alarms and Warnings Alarms and Warnings Fault Messages Acoustic Noise or Vibration 8-12 9 Specifications General Specifications Special Conditions 9-11 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 3 ® HVAC Drive Instruction Manual Contents 10 Index 10-1 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 4 ® Contents HVAC Drive Instruction Manual MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 5: Introduction

    Software version: 3.2.x This guide can be used with all VLT HVAC Drive adjustable frequency drives with software version 3.2.x. The current software version number can be read from Software Version par. 15-43 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 6: Copyright, Limitation Of Liability And Revision Rights

    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 7 Output Filter Design Guide, MG.90.Nx.yy Brake Resistor Design Guide, MG.90.Ox.yy x = Revision number yy = Language code Danfoss technical literature is available in print from your local Danfoss Sales Office or online at: www.danfoss.com/BusinessAreas/DrivesSolutions/Documentations/Technical+Documentation.htm MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 8 Pressure Pa = N/m² psi, psf, ft of water Rated Inverter Output Current Revolutions Per Minute Size Related Temperature Time s, hr Torque limit Voltage Table 1.1: Abbreviation and standards table. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 9 See below for details of how to read the Type code string (T/C). Figure 1.1: This example shows an identification label. NOTE! Please have T/C (type code) number and serial number ready before contacting Danfoss. MG.11.AB.22 - VLT ®...
  • Page 10 B options 31-32 BP: MCB 105 Relay option BO: MCB 109 Analog I/O option C0 options MCO 33-34 CX: No options C1 options X: No options Table 1.2: Type code description. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 11 XX: Standard software DX: No option D options 38-39 D0: DC backup Table 1.3: Type code description. VLT HVAC Drive Design Guide, MG.11.BX.YY The various options and accessories are described further in the MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 12 1 Introduction ® HVAC Drive Instruction Manual MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 13: Safety

    Correct protective grounding of the equipment must be established, the user must be protected against supply voltage, and the motor must be protected against overload in accordance with applicable national and local regulations. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 14 Installation at high altitudes Installation at high altitude: 380–500 V, enclosure A, B and C: At altitudes above 6,561 ft, please contact Danfoss regarding PELV. 380–500 V, enclosure D, E and F: At altitudes above 9,842 ft, please contact Danfoss regarding PELV.

  • Page 15: Before Commencing Repair Work

    Grid configuration (grounded delta transformer leg, IT,TN, etc.) • Safety of low-voltage ports (PELV conditions). Design Guide Consult the relevant clauses in these instructions and in the VLT HVAC Drive for information about the installation requirements. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 16: Avoid Unintended Start

    2.1.6 Installation at High Altitudes (PELV) Hazardous Voltage! By altitudes above 6,600 feet [2 km], please contact Danfoss regarding PELV. Avoid unintended start While the adjustable frequency drive is connected to line power, the motor can be started/stopped using digital commands, bus com- mands, references or via the LCP.

  • Page 17: Safe Stop Of The Adjustable Frequency Drive

    The information and instructions of the Instruction Manual are not sufficient for a correct and safe use of the safe stop functionality! 130BA491 This certificate also covers FC 102 and FC 202! MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 18: It Line Power

    Equipment containing electrical components may not be disposed of together with domestic waste. It must be separately collected with electrical and electronic waste according to local and currently valid leg- islation. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 19: Mechanical Installation

    The packaging for these enclosures contains, as shown: accessory bag(s), documentation and the unit. Depending on options fitted, there may be one or two bags and one or more booklets. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 20 3 Mechanical Installation ® HVAC Drive Instruction Manual MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 21 ® HVAC Drive Instruction Manual 3 Mechanical Installation MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 22 3 Mechanical Installation ® HVAC Drive Instruction Manual MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 23 For heavier drives (B4, C3, C4), use a lift. First wall-mount the 2 lower bolts, then lift the drive onto the lower bolts. Finally, fasten the drive against the wall with the 2 top bolts. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 24 This kit cannot be used with cast front covers. No cover or IP21 plastic cover must be used instead. Information on ordering numbers is found in the Design Guide , section Ordering Numbers. More detailed information is available in the Panel Through Mount Kit instruction, MI.33.H1.YY, where yy=language code. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 25: Electrical Installation

    2) Cable dimensions above 25 hp [18.5 kW] ≥ 0.0542 in ] and below 30 hp [22 kW] ≤ 0.0155 in [35 mm [10 mm 3) For data on the F-series, please consult VLT HVAC Drive High Power Instruction Manual, MG.11.F1.02 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 26: Power And Control Wiring For Unshielded Cables

    When shielded/armored cable is not used, at least three separate conduits must be connected to the panel option (see figure below). • Power wiring into the enclosure • Power wiring from the enclosure to the motor • Control wiring Figure 4.1: Power and control wiring connection MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 27: Electrical Installation And Control Cables

    ® HVAC Drive Instruction Manual 4 Electrical Installation 4.1.3 Electrical Installation and Control Cables Figure 4.2: Diagram showing all electrical terminals. (Terminal 37 present for units with safe stop function only.) MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 28 Short-circuit protection: The adjustable frequency drive must be protected against short-circuit to avoid electrical or fire hazard. Danfoss recommends using the fuses mentioned below to protect service personnel and equipment in case of an internal failure in the drive. The adjustable frequency drive provides full short-circuit protection in case of a short-circuit on the motor output.
  • Page 29 500 V/600 V maximum. If UL/cUL is not to be complied with, Danfoss recommends using the fuses mentioned in the table below, which will ensure compliance with EN50178. In case of malfunction, not following the recommendation may result in unnecessary damage to the adjustable frequency drive.
  • Page 30 KLN-R125 A2K-125R 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 4.5: UL fuses, 200–240 V MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 31 L50S fuses from LITTEL FUSE may substitute for L50S fuses for 240 V adjustable frequency drives. A6KR fuses from FERRAZ SHAWMUT may substitute for A2KR for 240 V adjustable frequency drives. A50X fuses from FERRAZ SHAWMUT may substitute for A25X for 240 V adjustable frequency drives. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 32 Do not connect 400 V adjustable frequency drives with RFI filters to line power supplies with a voltage between phase and ground of more than 440 V. For IT line power and delta ground (grounded leg), AC line voltage may exceed 440 V between phase and ground. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 33 ® HVAC Drive Instruction Manual 4 Electrical Installation MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 34 Figure 4.5: When mounting cables, first mount and tighten ground cable. The ground connection cable cross-section must be at least 0.016 in [10 mm ] or 2 rated line power wires terminated separately according to EN 50178/IEC 61800-5-1 4-10 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 35 Figure 4.6: Then mount line power plug and tighten wires. Figure 4.7: Finally, tighten support bracket on line power wires. NOTE! With single phase A3 use L1 and L2 terminals. 4-11 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 36 Figure 4.8: How to connect to line power and grounding without a line power disconnect switch. Note that a cable clamp is used. Figure 4.9: How to connect to line power and grounding with a line power disconnect switch. NOTE! With single phase A5 use L1 and L2 terminals. 4-12 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 37: Specifications

    B3 with RFI. NOTE! With single phase B1 use L1 and L2 terminals. NOTE! For correct cable dimensions, please see the section General Specifications at the back of this manual. 4-13 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 38 4.1.11 AC Line Input Connections for C3 and C4 Figure 4.15: How to connect C3 to line power and ground- Figure 4.16: How to connect C4 to line power and ground- ing. ing. 4-14 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 39 In motors without phase insulation paper or other insulation reinforcement suitable for operation with the voltage supply (such as an adjustable frequency drive), fit a sine-wave filter on the output of the adjustable frequency drive. (Motors that comply with IEC 60034-17 do not require a sine-wave filter). 4-15 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 40 6 cables out of motor, Delta-connected 6 cables out of motor, Star-connected U2, V2, W2 to be interconnected separately (optional terminal block) Ground connection Table 4.8: 3 and 6 cable motor connection. 4-16 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 41 ® HVAC Drive Instruction Manual 4 Electrical Installation 4-17 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 42 Figure 4.18: First terminate the motor ground, then place motor U, V and W wires in the plug and tighten them. Figure 4.19: Mount cable clamp to ensure 360 degree connection between chassis and shield; ensure that the outer insulation of the motor cable is removed under the clamp. 4-18 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 43 Figure 4.21: First terminate the motor ground, then place motor U, V and W wires in the terminal and tighten them. Please ensure that the outer insulation of the motor cable is removed under the EMC clamp. 4-19 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 44 Figure 4.24: First terminate the motor ground, then place motor U, V and W wires in the terminal and tighten them. Please ensure that the outer insulation of the motor cable is removed under the EMC clamp. 4-20 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 45: Dc Bus Connection

    How to program the adjustable frequency drive. 4.1.21 DC Bus Connection The DC bus terminal is used for DC backup, with the intermediate circuit being supplied from an external source. Terminal numbers used: 88, 89 4-21 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 46: Brake Connection Option

    Terminals Dynamic brake calls for extra equipment and safety considerations. For further information, please contact Danfoss. Use cable clamps to connect the shield to the metal cabinet of the adjustable frequency drive and to the decoupling plate of the brake resistor.
  • Page 47 Place the brake resistor in an environment free of fire risk and ensure that no external objects can fall into the brake resistor through ventilation slots. Do not cover ventilation slots and grids. 4-23 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 48: Relay Connection

    (normally closed) 04 - 05 make (normally open) 04 - 06 break (normally closed) Terminals for relay connection Terminals for relay connection (A2 and A3 enclosures). (A5, B1 and B2 enclosures). 4-24 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 49 The relay connections are shown in the cut-out with relay plugs (from the accessory bag) fitted. Figure 4.36: Terminals for relay connections for B3. Only one relay input is fitted from the factory. When the second relay is needed, remove the knock-out. 4-25 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 50 HVAC Drive Instruction Manual Figure 4.37: Terminals for relay connections for B4. Figure 4.38: Terminals for relay connections for C3 and C4. Located in the upper right corner of the adjustable frequency drive. 4-26 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 51 Relay 1 and relay 2 are programmed in par. 5-40 Function Relay par. 5-41 On Delay, Relay , and par. 5-42 Off Delay, Relay Additional relay outputs by using option module MCB 105. 4-27 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 52 Remove front cover to access control terminals. When replacing the front cover, ensure proper fastening by applying a torque of 2 Nm. Figure 4.40: Access to control terminals for A5, B1, B2, C1 and C2 enclosures 4-28 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 53: How To Test Motor And Direction Of Rotation

    (Note: For units with the Safe Stop func- tion, the existing jumper between terminal 12 and 37 should not be removed for the unit to be able to run!) 4-29 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 54 This enables speed changes by larger increments. can be adjusted by pushing the up and down arrow buttons. Figure 4.49: Step 8: Press the [Off] button to stop the motor again. 4-30 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 55 Please note that the switches may be covered by an option, if so equip- ped. Default setting: S201 (AI 53) = OFF (voltage input) S202 (AI 54) = OFF (voltage input) S801 (Bus termination) = OFF Figure 4.51: Switches location. 4-31 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 56 To access the list, first press [QUICK MENU] key, then select “Q2 Quick Motor Power [HP] Par. 1-21 Set-up”. Par. 1-22 Motor Voltage Motor Frequency Par. 1-23 Motor Current Par. 1-24 Par. 1-25 Motor Nominal Speed Table 4.10: Motor related parameters 4-32 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 57 "Report Value" in the [Alarm Log] shows the last measuring sequence carried out by the AMA before the adjustable frequency drive entered alarm mode. This number, along with the description of the alarm, will assist in troubleshooting. If contacting Danfoss Service, make sure to mention number and alarm description.
  • Page 58 4 Electrical Installation ® HVAC Drive Instruction Manual 4-34 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 59: Commissioning And Application Examples

    Display Line 3 Large Only display parameters selected in par. 0-20 and par. 0-24 can be viewed. It is possible to store up to 120 samples in the memory for later reference. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 60 The 18 Quick Set-up parameters are shown in the table below. A complete description of the function is given in the parameter description sections of this manual. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 61 P signal (TX+, RX+), while terminal 69 is connected to the N signal (TX-, RX-). If more than one adjustable frequency drive is connected to a master, use parallel connections. Figure 5.2: Connection example. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 62 5.1.4 PC Software Tools PC-based Configuration Tool MCT 10 All adjustable frequency drives are equipped with a serial communication port. Danfoss provides a PC tool for communication between PC and adjustable Available Literature frequency drive, PC-based Configuration Tool MCT 10. Please check the section on for detailed information on this tool.
  • Page 63 Smart Logic Controller Set-up Ordering number: Please order the CD containing MCT 10 Set-up software using code number 130B1000. WWW.DANFOSS.COM, Business Area: Motion Controls MCT 10 can also be downloaded from the Danfoss Internet: MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 64: Tips And Tricks

    Select “All from LCP” Press the [OK] key. The parameter settings stored in the GLCP are now transferred to the adjustable frequency drive indicated by the progress bar. When 100% is reached, press [OK]. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 65 2b. Press [Menu] while the LCP 101, Numerical Display is pow- ering up. 3. Release the keys after 5 s 4. The adjustable frequency drive is now programmed according to default settings MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 66: Application Examples

    Terminal 27 Digital Input Stop inverse Terminal 18 Digital Input Latched start Par. 5-10 Terminal 27 Digital Input Stop inverse Par. 5-12 Figure 5.5: Terminal 37: Available only with Safe Stop Func- tion! MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 67: Automatic Motor Adaptation (Ama)

    The adjustable frequency drive does not produce motor torque during an AMA. During an AMA, it is imperative that the application does not force the motor shaft to run, which is known to happen with, e.g., wind milling in ventilation systems. This disturbs the AMA function. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 68 5 Commissioning and Application Examples ® HVAC Drive Instruction Manual 5-10 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 69: How To Operate The Adjustable Frequency Drive

    Line 1-2: Operator data lines displaying data and variables de- fined or chosen by the user. By pressing the [Status] key, up to one extra line can be added. Status line: Status messages displaying text. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 70 In the example, Speed, Motor current, Motor power and Frequency are selected as variables in the first and second lines. 1.1, 1.2 and 1.3 are shown in small size. 2 is shown in large size. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 71 The On LED is activated when the adjustable frequency drive receives power from AC line voltage, a DC bus terminal, or an external 24 V supply. At the same time, the back light is on. • Green LED/On: Control section is working. • Yellow LED/Warn.: Indicates a warning. • Flashing Red LED/Alarm: Indicates an alarm. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 72 [OK]. Information is displayed about the condition of the adjustable frequency drive before it enters alarm mode. The alarm log button on the LCP allows access to both alarm log and maintenance log. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 73 [OK] is used for choosing a parameter marked by the cursor and for enabling the change of a parameter. Operation Keys for local control are found at the bottom of the control panel. 130BP046.10 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 74 [1] or [0] via par. 0-43 The parameter shortcut can be carried out by holding down the [Main Menu] key for 3 seconds. The parameter shortcut allows direct access to any parameter. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 75: How To Operate The Numeric Lcp (Nlcp)

    Green LED/On: Indicates if control section is on. • Yellow LED/Wrn.: Indicates a warning. • Flashing red LED/Alarm: Indicates an alarm. Menu key Select one of the following modes: • Status • Quick Set-up • Main Menu MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 76 [0] via par. 0-41 [Off] Key on LCP If no external stop function is selected and the [Off] key is inactive, the motor can be stopped by disconnecting the line power supply. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 77 An active HAND-OFF-AUTO signal via the digital inputs has higher priority than the control keys [Hand on] [Auto on]. [Reset] is used for resetting the adjustable frequency drive after an alarm (trip). The key can be Enabled [1] or Disabled [0] via par. 0-43 [Reset] Key on LCP MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 78 6 How to Operate the Adjustable Frequency Drive ® HVAC Drive Instruction Manual 6-10 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 79: How To Program The Adjustable Frequency Drive

    Function set-ups. Press [OK]. Figure 7.2: Step 2: Press the [Quick Menus] button (quick Figure 7.4: Step 4: Function set-ups choices appear. Choose General Settings menu choices appear). 03-1 . Press [OK]. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 80 Terminal 53 Low Current Par. 5-14 Par. 6-12 Par. 5-15 Terminal 33 Digital Input Par. 6-13 Terminal 53 High Current Par. 6-14 Terminal 53 Low Ref./Feedb. Value Terminal 53 High Ref./Feedb. Value Par. 6-15 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 81 PID Integral Time Par. 20-94 Closed-loop Type Par. 20-70 PID Performance Par. 20-71 Par. 20-72 PID Output Change Par. 20-73 Minimum Feedback Level Maximum Feedback Level Par. 20-74 PID Autotuning Par. 20-79 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 82 ) will determine other parameters available for programming. For example, selecting Closed-loop enables additional parameters related to closed-loop operation. Option cards added to the unit enable additional parameters associated with the option device. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 83 [◄] and [►] navigation keys as well ▲ ▼ ] navigation keys. Use the ◄] and [►] navigation as the up/down [ keys to move the cursor horizontally. Figure 7.10: Display example. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 84 [OK]. Change the value by using the up/down keys. Press [OK] to accept the new setting. Press [Cancel] to abort. Press [Back] to leave the parameter. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 85: Commonly Used Parameters - Explanations

    [48] Polski Part of Language package 1 [49] Russian Part of Language package 1 [50] Thai Part of Language package 2 [51] Bahasa Indonesia Part of Language package 2 [99] Unknown MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 86 Phase current of the motor measured as effective value. [1615] Frequency [%] Motor frequency, i.e., the output frequency from the adjustable frequency drive in percent. [1616] Torque [Nm] Present motor load as a percentage of the rated motor torque. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 87 Actual value of the frequency applied at terminal 29 as a pulse input. [1668] Pulse Input #33 [Hz] Actual value of the frequency applied at terminal 33 as a pulse input. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 88 Ext. 2 Feedback [Unit] The value of the feedback signal for extended Closed-loop Controller 2 [2139] Ext. 2 Output [%] The value of the output from extended Closed-loop Controller 2 7-10 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 89 The options are the same as those listed under 0-2*. 0-23 Display Line 2 Large Option: Function: Select a variable for display in line 2. The options are the same as those listed under 0-2*. 7-11 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 90 A character can be inserted by placing the ▲ ▼ cursor between two characters and pressing 0-70 Date and Time Range: Function: Application [Application dependant] dependent* 7-12 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 91 (e.g., constant pressure or flow). The PID controller must be configured in par. 20-** or via the function set-ups accessed by pressing the [Quick Menu] button. NOTE! This parameter cannot be changed when the motor is running. 7-13 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 92 . It is very rarely necessary to adjust the motor power factor parameter manually. 1-20 Motor Power [kW] Range: Function: Application [Application dependant] dependent* 1-21 Motor Power [HP] Range: Function: Application [Application dependant] dependent* 1-22 Motor Voltage Range: Function: Application [Application dependant] dependent* 7-14 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 93 Press [Off] to stop the motor”. Pressing [Off] stops the motor and resets par. 1-28 Motor Rotation Check . If motor rotation direction is incorrect, two motor phase cables should be interchanged. IMPORTANT: Line power must be removed before disconnecting motor phase cables. 7-15 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 94 Enter the time delay required before commencing acceleration. 1-73 Flying Start Option: Function: This function makes it possible to catch a motor that is spinning freely due to a line drop-out. 7-16 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 95 • Via calculation (ETR = Electronic Thermal Relay) of the thermal load, based on the actual load and time. The calculated thermal load is compared with the rated motor current 7-17 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 96 ETR (Electronic Thermal Relay) functions 1-4 will calculate the load when the set-up where they were selected is active. For example, ETR-3 starts calculating when Set-up 3 is selected. For the North American market: The ETR functions provide class 20 motor overload protection in accordance with NEC. NOTE! Danfoss recommends using 24 VDC as thermistor supply voltage. 1-93 Thermistor Source Option: Function: Select the input to which the thermistor (PTC sensor) should be connected.
  • Page 97 100.0 %* [Application dependant] Enter the maximum permissible current when using AC brake to avoid overheating motor windings. The AC brake function is available in flux mode only (FC 302 only). 7-19 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 98 3-03 Maximum Reference Range: Function: Application [Application dependant] dependent* 3-10 Preset Reference Array [8] Range: Function: 0.00 %* [-100.00 - 100.00 %] 3-11 Jog Speed [Hz] Range: Function: Application [Application dependant] dependent* 7-20 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 99 Analog input X30/11 [22] Analog input X30/12 [23] Analog Input X42/1 [24] Analog Input X42/3 [25] Analog Input X42/5 [30] Ext. Closed-loop 1 [31] Ext. Closed-loop 2 [32] Ext. Closed-loop 3 7-21 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 100 [Application dependant] dependent* 4-13 Motor Speed High Limit [RPM] Range: Function: Application [Application dependant] dependent* NOTE! Switching Frequency Max. output frequency cannot exceed 10% of the inverter switching frequency (par. 14-01 7-22 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 101 The signal outputs can be programmed to produce a status signal on terminal 27 or 29 and on relay lUnit* output 01 or 02. 4-64 Semi-Auto Bypass Set-up Option: Function: [0] * No function Enabled Starts the semi-automatic bypass set-up and continue with the procedure described above. 7-23 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 102 (Relay 1 [0], Relay 2 [1] Option MCB 105: Relay 7 [6], Relay 8 [7] and Relay 9 [8]) Control ready Drive ready Drive rdy/rem ctrl Standby / no warning 7-24 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 103 [64] Comparator 4 [65] Comparator 5 [70] Logic rule 0 [71] Logic rule 1 [72] Logic rule 2 [73] Logic rule 3 [74] Logic rule 4 [75] Logic rule 5 7-25 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 104 [194] Broken Belt [195] Bypass Valve Control [196] Fire Mode [197] Fire Mode was Act. [198] Drive Bypass [211] Cascade Pump 1 [212] Cascade Pump 2 [213] Cascade Pump 3 7-26 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 105 50% of the value defined in parameter group 6-1* to 6-6* "Terminal xx Low Live Zero Timeout Current” or “Terminal xx Low Voltage" for a time period defined in par. 6-00 Time [0] * Freeze output Stop Jogging Max. speed 7-27 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 106 I/O system (e.g., when not used as part of any adjustable frequency drive related control functions, but for feeding a building management system with data). Disabled [1] * Enabled 7-28 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 107 I/O system (e.g., when used not as part of any adjustable frequency drive related control functions, but for feeding a building management system with data). Disabled [1] * Enabled 7-29 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 108 Values for setting the minimum reference are found in open-loop par. 3-02 and for closed-loop par. 20-13 Feedb. Maximum Reference Maximum Reference/ - values for maximum reference for open-loop are found in par. 3-03 and for closed-loop par. 20-14 Feedb. 7-30 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 109 Output signal 0 or 4 mA is needed at 0% (50% of range) - set par. 6-51 Terminal 42 Output Min Scale to 50% Output signal 20 mA is needed at 100% (75% of range) - set par. 6-52 Terminal 42 Output Max Scale to 75% 7-31 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 110 2.5 kHz 3.0 kHz 3.5 kHz 4.0 kHz [7] * 5.0 kHz 6.0 kHz 7.0 kHz [10] 8.0 kHz [11] 10.0 kHz [12] 12.0 kHz [13] 14.0 kHz [14] 16.0 kHz 7-32 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 111 . Par. 20-21 through Setpoint 3 par. 20-23 allow the values of A1, A2 and A3 to be entered for a refrigerant that is not Refrigerant listed in par. 20-30 7-33 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 112 [120] [121] gal / sec. [122] gal/min [123] gal / hr. [124] [125] ft³/s [126] ft³/min [127] ft³/h [130] lbs / sec. [131] lbs / min. [132] lbs / hr. 7-34 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 113 Feedback 1 Conversion See par. 20-01 for details. [0] * Linear Square root Pressure to temperature 20-05 Feedback 2 Source Unit Option: Function: See par. 20-02 Feedback 1 Source Unit for details. 7-35 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 114 PID Proportional Gain Par. 20-13 and par. 20-14 also determine the feedback range when using feedback for display readout with par. 1-00 Configuration Mode set for Open-loop [0]. Same condition as above. 7-36 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 115 1 and Setpoint 1, Feedback 2 and Setpoint 2, and Feedback 3 and Setpoint 3. It will use the feed- back/setpoint pair in which the feedback is the farthest below its corresponding setpoint reference. 7-37 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 116 . The PID controller will increase the speed of the fan if any one feedback is below the setpoint, and decrease the speed of the fan if all feedbacks are above the setpoint. 7-38 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 117 PID controller. See the description of Feedback Function Feedback Function nit* par. 20-20 NOTE! The setpoint reference entered here is added to any other references that are enabled (see par. group 3-1*). 7-39 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 118 [OK] or [Cancel] buttons on the LCP at the end of tuning, this parameter is reset to [0] Disabled. [0] * Disabled Enabled 7-40 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 119 If the value is set to 10,000, the controller will act as a pure proportional controller with a P-band PID Proportional Gain based on the value set in par. 20-93 . When no deviation is present, the output from the proportional controller will be 0. 7-41 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 120 Enabled Select Enabled for detecting when the motor operates with a speed as set in par. 4-11 Motor Speed Low Limit [RPM] Motor Speed Low Limit [Hz] or par. 4-12 7-42 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 121 , to [13] Infinite auto reset, when par. 22-26 Dry Pump Function is set to [2] Alarm. Doing so will cause the drive to continuously cycle between running and stopping when a dry pump condition is detected. 7-43 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 122 If used in application where the integrated PI controller is set for inverse control (e.g., cooling tower applications) in par. 20-71 Performance , the value set in par. 22-44 Wake-up Ref./FB Difference will automatically be added. 7-44 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 123 10 s [0 - 600 s] Sets the time for which the broken belt conditions must be active before carrying out the action selected in par. 22-60 Broken Belt Function 7-45 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 124 Adjustment of this parameter allows the shape of the control curve to be adjusted. 0 = Linear 100% = Ideal shape (theoretical). NOTE! Please note: Not visible when running in cascade. 7-46 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 125 B and thus to plot the control curve that will also include the system design working point A. 7-47 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 126 22-87 Pressure at No-Flow Speed Range: Function: 0.000 N/A* [Application dependant] Enter the pressure H corresponding to Speed at No Flow in Reference/Feedback Units. Please see also par. 22-82 Work Point Calculation point D. 7-48 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 127 22-90 Flow at Rated Speed Range: Function: 0.000 N/A* [0.000 - 999999.999 N/A] Enter the value corresponding to Flow at Rated Speed. This value can be defined using the pump datasheet. 7-49 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 128 Parameters only applicable when a Profibus option is installed. CAN Ser. Com. Bus Parameters only applicable when a DeviceNet option is installed. LonWorks Parameters only applicable when a Lonworks option is installed. Table 7.1: Parameter Groups 7-50 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 129 (e.g., which analog input or the BMS HLI); programming of the setpoint and manual or auto-tuning of each of the PI(D) controllers. 7-51 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 130 All digital input/output and analog input/output terminals are multifunctional. All terminals have factory default functions suitable for the majority of HVAC applications but if other special functions are required, they must be programmed as explained in parameter group 5 or 6. 7-52 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 131: Operation And Display

    Uint8 TimeOf- 0-82 Additional Working Days ExpressionLimit 1 set-up TRUE TimeOf- 0-83 Additional Non-Working Days ExpressionLimit 1 set-up TRUE VisStr[2 0-89 Date and Time Readout 0 N/A All set-ups TRUE 7-53 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 132: Load / Motor

    Uint8 2-15 Brake Check [0] Off All set-ups TRUE Uint8 2-16 AC Brake Max. Current 100.0 % All set-ups TRUE Uint32 2-17 Over-voltage Control [2] Enabled All set-ups TRUE Uint8 7-54 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 133: Reference / Ramps

    4-62 Bypass Speed to [RPM] ExpressionLimit All set-ups TRUE Uint16 4-63 Bypass Speed To [Hz] ExpressionLimit All set-ups TRUE Uint16 4-64 Semi-Auto Bypass Set-up [0] OFF All set-ups FALSE Uint8 7-55 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 134: Digital In / Out

    Pulse Out #29 Timeout Preset 0.00 % 1 set-up TRUE Uint16 5-97 Pulse Out #X30/6 Bus Control 0.00 % All set-ups TRUE 5-98 Pulse Out #X30/6 Timeout Preset 0.00 % 1 set-up TRUE Uint16 7-56 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 135: Analog In / Out

    Terminal X30/8 Max. Scale 100.00 % All set-ups TRUE Int16 6-63 Terminal X30/8 Output Bus Control 0.00 % All set-ups TRUE 6-64 Terminal X30/8 Output Timeout Preset 0.00 % 1 set-up TRUE Uint16 7-57 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 136: Communication And Options

    All set-ups TRUE Uint16 8-94 Bus Feedback 1 0 N/A 1 set-up TRUE 8-95 Bus Feedback 2 0 N/A 1 set-up TRUE 8-96 Bus Feedback 3 0 N/A 1 set-up TRUE 7-58 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 137: Profibus

    Uint16 10-33 Store Always [0] Off 1 set-up TRUE Uint8 10-34 DeviceNet Product Code 120 N/A 1 set-up TRUE Uint16 10-39 Devicenet F Parameters 0 N/A All set-ups TRUE Uint32 7-59 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 138: Lonworks

    13-44 Logic Rule Boolean 3 null 2 set-ups TRUE Uint8 13-5* States 13-51 SL Controller Event null 2 set-ups TRUE Uint8 13-52 SL Controller Action null 2 set-ups TRUE Uint8 7-60 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 139: Special Functions

    Function at Overtemperature [0] Trip All set-ups TRUE Uint8 14-61 Function at Inverter Overload [0] Trip All set-ups TRUE Uint8 14-62 Inv. Overload Derate Current 95 % All set-ups TRUE Uint16 7-61 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 140: Fc Information

    All set-ups FALSE Uint16 15-93 Modified Parameters 0 N/A All set-ups FALSE Uint16 15-98 Drive Identification 0 N/A All set-ups FALSE VisStr[40] 15-99 Parameter Metadata 0 N/A All set-ups FALSE Uint16 7-62 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 141: Data Readouts

    16-94 Ext. Status Word 0 N/A All set-ups FALSE Uint32 16-95 Ext. Status Word 2 0 N/A All set-ups FALSE Uint32 16-96 Maintenance Word 0 N/A All set-ups FALSE Uint32 7-63 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 142: Info & Readouts

    0.000 N/A All set-ups FALSE Int16 18-35 Analog Out X42/11 [V] 0.000 N/A All set-ups FALSE Int16 18-5* Ref. & Feedb. 18-50 Sensorless Readout [unit] 0.000 SensorlessUnit All set-ups FALSE Int32 7-64 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 143: Fc Closed-Loop

    PID Integral Time 20.00 s All set-ups TRUE Uint32 20-95 PID Differentiation Time 0.00 s All set-ups TRUE Uint16 20-96 PID Diff. Gain Limit 5.0 N/A All set-ups TRUE Uint16 7-65 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 144: Ext. Closed-Loop

    Ext. 3 Integral Time 10000.00 s All set-ups TRUE Uint32 21-63 Ext. 3 Differentation Time 0.00 s All set-ups TRUE Uint16 21-64 Ext. 3 Dif. Gain Limit 5.0 N/A All set-ups TRUE Uint16 7-66 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 145: Application Functions

    Pressure at Rated Speed 999999.999 N/A All set-ups TRUE Int32 22-89 Flow at Design Point 0.000 N/A All set-ups TRUE Int32 22-90 Flow at Rated Speed 0.000 N/A All set-ups TRUE Int32 7-67 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 146: Time-Based Funtions

    2 set-ups TRUE Uint32 23-82 Investment 0 N/A 2 set-ups TRUE Uint32 23-83 Energy Savings 0 kWh All set-ups TRUE Int32 23-84 Cost Savings 0 N/A All set-ups TRUE Int32 7-68 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 147: Application Functions 2

    Locked Rotor Coefficient 2 0.0000 N/A All set-ups TRUE Int32 24-98 Locked Rotor Coefficient 3 0.0000 N/A All set-ups TRUE Int32 24-99 Locked Rotor Coefficient 4 0.000 N/A All set-ups TRUE Int32 7-69 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 148: Cascade Controller

    Reset Relay Counters [0] Do not reset All set-ups TRUE Uint8 25-9* Service 25-90 Pump Interlock [0] Off All set-ups TRUE Uint8 25-91 Manual Alternation 0 N/A All set-ups TRUE Uint8 7-70 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 149: Analog I / O Option Mcb 109

    Terminal X42/11 Max. Scale 100.00 % All set-ups TRUE Int16 26-63 Terminal X42/11 Bus Control 0.00 % All set-ups TRUE 26-64 Terminal X42/11 Timeout Preset 0.00 % 1 set-up TRUE Uint16 7-71 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 150 7 How to Program the Adjustable Frequency Drive ® HVAC Drive Instruction Manual 7-72 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 151: Troubleshooting

    . After an alarm or trip, the motor carries on coasting, and the alarm and warning flash on the adjustable frequency drive. Once the problem has been rectified, only the alarm continues flashing. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 152 AMA Parameter out of range AMA interrupted by user AMA timeout AMA internal fault Current limit External Interlock Output Frequency at Maximum Limit Voltage Limit Control Board Overtemperature MG.11.AB.22 - VLT ® is a registered Danfoss trademark Table 8.1: Alarm/Warning code list...
  • Page 153 A trip lock is an action that occurs in conjunction with an alarm, which may cause damage to the adjustable frequency drive or connected parts. A trip lock situation can only be reset by power cycling. LED indication Warning yellow Alarm flashing red Trip locked yellow and red Table 8.3: LED Indication MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 154 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 Alarm Word Warning Word Ext. Status Word par. 16-90 , par. 16-92 and par. 16-94 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 155: Fault Messages

    If the motor is mechanically overloaded If the intermediate circuit voltage exceeds the limit, the adjustable fre- quency drive trips after a time. That the motor par. 1-24 Motor Current is set correctly. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 156 Check if the motor is overheating. or software. Check if the motor is mechanically overloaded. Record the value of the following parameters and contact your Danfoss Check that the thermistor is connected correctly between ter- supplier: minal 53 or 54 (analog voltage input) and terminal 50 (+10 V Par.
  • Page 157 Blocked air flow around the drive. Damaged heatsink fan. For the D, E, and F Frame drives, this alarm is based on the temperature measured by the heatsink sensor mounted inside the IGBT modules. For MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 158 HVAC Drive Instruction Manual ALARM 38, Internal fault 2080-2088 H082x: option in slot x has issued a power-up wait It may be necessary to contact your Danfoss supplier. Some typical alarm 2096-2104 H083x: option in slot x has issued a legal power-up wait...
  • Page 159 The output frequency is higher than the value set in par. 4-19 When replacing an F frame module, this will occur if the power specific Frequency data in the module power card does not match the rest of the drive. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 160 WARNING 204, Locked Rotor 3 = right inverter module in F2 or F4 drive. A multi-motor overload situation was detected, which could be due to, 5 = rectifier module. e.g., a locked rotor. 8-10 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 161 Select the correct type code in par. 14-23 according to the label on the unit. Remember to select ‘Save to EEPROM’ to complete. ALARM 251, New type code The adjustable frequency drive has a new type code. 8-11 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 162: Acoustic Noise Or Vibration

    If the motor or the equipment driven by the motor, e.g., a fan blade, is making noise or vibrations at certain frequencies, try the following: • Speed Bypass, parameter group 4-6* • Overmodulation, parameter 14-03 set to off • Switching pattern and frequency parameter group 14-0* • Resonance Dampening, parameter 1-64 8-12 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 163 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 Efficiency 0.96 0.96 0.96 0.96 0.96 Table 9.1: Line Power Supply 200–240 V AC MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 164 9 Specifications ® HVAC Drive Instruction Manual MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 165 ® HVAC Drive Instruction Manual 9 Specifications MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 166 9 Specifications ® HVAC Drive Instruction Manual MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 167 ® HVAC Drive Instruction Manual 9 Specifications MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 168 Input resistance, R approx. 4 kΩ 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. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 169 68 (P,TX+, RX+), 69 (N,TX-, RX-) Terminal number 61 Common for terminals 68 and 69 The RS-485 serial communication circuit is functionally seated from other central circuits and galvanically isolated from the supply voltage (PELV). MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 170 System response time (terminals 18, 19, 27, 29, 32, 33) Speed control range (open-loop) 1:100 of synchronous speed 30–4000 rpm: Maximum error of ±8 rpm Speed accuracy (open-loop) All control characteristics are based on a 4-pole asynchronous motor MG.11.AB.22 - VLT ® is a registered Danfoss trademark...

  • Page 171: Special Conditions

    The USB connection is not galvanically isolated from protection ground. Use only an isolated laptop/PC as the connection to the USB connector on the adjustable frequency drive or an isolated USB cable/drive. MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 172 Monitoring of the intermediate circuit voltage ensures that the adjustable frequency drive trips if the intermediate circuit voltage is too low or too high. • The adjustable frequency drive is protected against ground faults on motor terminals U, V, W. 9-10 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 173 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. 9.2.3 Automatic Adaptations to Ensure Performance The adjustable frequency drive constantly checks for critical levels of internal temperature, load current, high voltage on the intermediate circuit and low motor speeds.
  • Page 174 Note 1) Oversyncronous speed operation will result in the available motor torque decreasing inversely proportional to the increase in speed. This must be considered during the design phase to avoid overloading the motor. 9-12 MG.11.AB.22 - VLT ® is a registered Danfoss trademark...
  • Page 175 Control Card Performance Control Card, 10 V Dc Output Control Card, 24 V Dc Output Control Card, Rs-485 Serial Communication: Control Card, Usb Serial Communication: Control Characteristics Cooling 7-18, 9-12 Cooling Conditions 10-1 ® MG.11.AB.22 - VLT is a registered Danfoss trademark...
  • Page 176 Flow Compensation 22-80 7-46 Flying Start 1-73 7-16 Function At Stop 1-80 7-17 Function Relay 5-40 7-24 Function Set-ups Fuses General Specifications General Warning. Glcp Graphical Display Grounding And It Line Power 10-2 ® MG.11.AB.22 - VLT is a registered Danfoss trademark...

  • Page 177: Mechanical Dimensions

    Minimum Reference/feedb. 20-13 7-36 Minimum Run Time 22-40 7-44, 7-46 Minimum Sleep Time 22-41 7-44 Motor Connection For C3 And C4 4-21 Motor Current 1-24 7-15 Motor Frequency 1-23 7-15 10-3 ® MG.11.AB.22 - VLT is a registered Danfoss trademark...

  • Page 178: Motor Wiring Overview

    Pressure At Rated Speed 22-88 7-49 Profibus Dp-v1 Protection And Features 9-10 Pulse Inputs Pulse Start/stop Quick Menu 6-4, 7-52 Quick Menu Mode Quick Menu Mode Quick Transfer Of Parameter Settings When Using Glcp 10-4 ® MG.11.AB.22 - VLT is a registered Danfoss trademark...
  • Page 179 Terminal 54 High Voltage 6-21 7-29 Terminal 54 Live Zero 6-27 7-29 Terminal 54 Low Current 6-22 7-29 Terminal 54 Low Ref./feedb. Value 6-24 7-29 Terminal 54 Low Voltage 6-20 7-29 10-5 ® MG.11.AB.22 - VLT is a registered Danfoss trademark...
  • Page 180 7-44 Warning Against Unintended Start Warning Feedback High 4-57 7-23 Warning Feedback Low 4-56 7-23 Warning Speed High 4-53 7-23 Wiring Example And Testing 4-21 Work Point Calculation 22-82 7-47 10-6 ® MG.11.AB.22 - VLT is a registered Danfoss trademark...

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Vlt hvac drive fc 100 series

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