Danfoss VLT Decentral Drive FCD 302 Design Manual
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Danfoss VLT Decentral Drive FCD 302 Design Manual

Danfoss VLT Decentral Drive FCD 302 Design Manual

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ENGINEERING TOMORROW
Design Guide
®
VLT
Decentral Drive FCD 302
vlt-drives.danfoss.com

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Summary of Contents for Danfoss VLT Decentral Drive FCD 302

  • Page 1 ENGINEERING TOMORROW Design Guide ® Decentral Drive FCD 302 vlt-drives.danfoss.com...

  • Page 3: Table Of Contents

    2.4.1 Speed PID Control 2.4.2 Parameters Relevant for Speed Control 2.4.3 Tuning PID Speed Control 2.4.4 Process PID Control 2.4.5 Process Control Relevant Parameters 2.4.6 Example of Process PID Control 2.4.7 Programming Order MG04H302 Danfoss A/S © 05/2018 All rights reserved.
  • Page 4 2.9.4.2 Use of EMC-correct Cables 2.9.4.3 Grounding of Shielded Control Cables 2.9.4.4 RFI Switch 2.9.5 Mains Supply Interference/Harmonics 2.9.5.1 Effect of Harmonics in a Power Distribution System 2.9.5.2 Harmonic Limitation Standards and Requirements 2.9.5.3 Harmonic Mitigation Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 5 3.4.3.5 Motor Bearing Currents 3.4.4 Extreme Running Conditions 3.4.4.1 Motor Thermal Protection 3.5 Final Test and Set-up 3.5.1 High-voltage Test 3.5.2 Grounding 3.5.3 Safety Grounding Connection 3.5.4 Final Set-up Check 4 Application Examples 4.1 Overview MG04H302 Danfoss A/S © 05/2018 All rights reserved.
  • Page 6 5.1.3.3 Power Size 2.2–3.0 kW 5.2 Automatic Derating 5.2.1 Sine-Wave Filter Fixed Mode 5.2.2 Overview Table 5.2.3 High Motor Load 5.2.4 High Voltage on the DC link 5.2.5 Low Motor Speed 5.2.6 High Internal 5.2.7 Current Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 7: Derating For Running At Low Speed

    7.1 Mechanical Dimensions 7.2 Electrical Data and Wire Sizes 7.2.1 Overview 7.2.2 UL/cUL Approved Pre-fuses ® 7.2.3 VLT Decentral Drive FCD 302 DC Voltage Levels 7.3 General Specifications 7.4 Efficiency 7.5 dU/dt Conditions Index MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 8: Introduction

    The following symbols are used in this manual: VLT,MAX Maximum output current. WARNING VLT,N Indicates a potentially hazardous situation that could Rated output current supplied by the frequency converter. result in death or serious injury. VLT,MAX Maximum output voltage. Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 9: Input

    0% value (typically 0 V, 0 mA, 4 mA) and the resulting reference. The minimum reference value is set in Instant motor voltage. parameter 3-02 Minimum Reference. Rated motor voltage (nameplate data). MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 10: Miscellaneous

    3 m (10 ft) from the frequency converter, that is, in a front Total harmonic distortion states the total contribution of panel with the installation kit option. harmonic. Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 11 Target position The final target position specified by positioning commands. The profile generator uses this position to calculate the speed profile. MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 12: Safety Precautions

    Protection mode means a change of the PWM Table 1.3 Discharge Time modulation strategy and a low switching frequency to minimize losses. This continues 10 s after the last fault and Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 13: Ce Labeling

    The frequency converter is most often used by profes- the Low Voltage Directive is achieved. Danfoss issues a sionals of the trade as a complex component forming part declaration of conformity that confirms CE labeling in of a larger appliance, system, or installation.

  • Page 14: Compliance With Emc Directive 2004/1087Ec

    The responsibility for the final EMC properties of the appliance, system, or installation rests with the installer. As an aid to the installer, Danfoss has prepared EMC instal- lation guidelines for the power drive system. The standards and test levels stated for power drive systems are complied with, if the EMC-correct instructions for installation are followed, see chapter 2.9.4 EMC.

  • Page 15: Product Overview And Functions

    400 V. Galvanic (ensured) isolation is obtained by fulfilling requirements for higher isolation and by providing the relevant creepage/clearance distances. These requirements are described in the EN 61800-5-1 standard. MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 16: Ground Leakage Current

    The frequency converter can control either the speed or the torque on the motor shaft. Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 17: Control Principle

    The short circuit behavior depends on the 3 current transducers in the motor phases and the desaturation protection with feedback from the brake. Brake L1 91 Resistor L2 92 U 96 L3 93 V 97 R inr Inrush W 98 P 14-50 Illustration 2.5 Control Principle MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 18: Control Structures

    Select [3] Process in parameter 1-00 Configuration Mode to use the process PID control for closed-loop control of, for example, speed or pressure in the controlled application. The process PID parameters are in parameter group 7-2* Process Ctrl. Feedb and parameter group 7-3* Process PID Ctrl. Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 19: Control Structure In Flux Sensorless

    P 4-11 Motor speed PID source 1 source low limit (RPM) P 7-22 Process feedback P 4-12 Motor speed 2 source low limit (Hz) Illustration 2.8 Control Structure in Flux with Motor Feedback MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 20: Local [Hand On] And Remote [Auto On] Control

    5-1* Digital Inputs or parameter group 8-5* Digital/Bus. LCP keys: P 3-13 Reference Site (Hand On), (O ), and (Auto On) Illustration 2.10 Local Handling of Reference Hand Auto Reset Illustration 2.9 LCP Keys Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 21: Programming Of Torque Limit And Stop

    The external brake can be connected to relay 1 or 2. Program parameter 5-01 Terminal 27 Mode to [2] Coast, inverse or [3] Coast and Reset, inverse, and program MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 22: Pid Control

    (PPR): Encoder PPR Parameter 7-06 Speed PID Lowpass Filter Time 10 ms 1024 5 ms 2048 2 ms 4096 1 ms Table 2.3 Parameters Relevant for Speed Control Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 23 [1] Counterclockwise (if parameter 16-20 Motor Angle is change the encoder direction in parameter 5-71 Term 32/33 Encoder decreasing). 32/33 Encoder Direction. Direction 3) Make sure that the frequency converter limits are set to safe values. MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 24: Tuning Pid Speed Control

    [kW] (that is, enter 4 kW instead of 4000 W in the depends on the combined inertia of the motor and load, formula). and the selected bandwidth can be calculated using the following formula: Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 25: Process Pid Control

    % [unit] [unit] [speed] To motor Scale to control speed -100% *(-1) Feedback 100% Handling % [unit] -100% P 7-30 P 4-10 normal/inverse Motor speed direction Illustration 2.14 Process PID Control Diagram MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 26: Process Control Relevant Parameters

    The low-pass filter improves steady state performance but selecting a too large filter time deteriorates the dynamic performance of the process PID control. Table 2.6 Parameters are Relevant for the Process Control Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 27: Example Of Process Pid Control

    When the temperature drops, the speed is reduced. The transmitter used is a temperature sensor with a working range of -10 to +40 °C (14–104 °F), 4–20 mA. Minimum/maximum speed 300/1500 RPM. MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 28: Programming Order

    Speed Low 1500 RPM. • Set motor speed maximum limit. Limit [RPM] 60 Hz. • Set maximum output frequency. Parameter 4-13 M otor Speed High Limit [RPM] Parameter 4-19 M ax Output Frequency Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 29: Process Controller Optimization

    Now lower the proportional gain by 40–60%. Set parameter 7-34 Process PID Integral Time to 20 s and reduce the value until the feedback signal again begins to vary continuously. Increase MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 30: Ziegler Nichols Tuning Method

    PI-control 0.45 x K 0.833 x P – To tune the PID controls of the frequency converter, Danfoss recommends the Ziegler Nichols tuning method. PID tight 0.6 x K 0.5 x P 0.125 x P control NOTICE PID some 0.33 x K...

  • Page 31: Dip Switches

    Illustration 2.18. Default settings: 27 = [2] Coast inverse parameter 5-10 Terminal 18 Digital Input 37 = Safe Torque Off inverse Coast inverse Speed Coast inverse (27) Illustration 2.18 Basic Wiring Example MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 32: Electrical Installation, Control Cables

    Illustration 2.19 Electrical Terminals without Options A = analog, D = digital Terminal 37 is used for Safe Torque Off. Relay 2 has no function when the frequency converter has mechanical brake output. Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 33: Relay Output

    Illustration 2.21 Relay Connection NOTICE To comply with EMC emission specifications, shielded/ armored cables are recommended. If an unshielded/ unarmored cable is used, see chapter 2.9.7 EMC Test Results for more information. MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 34: Handling Of Reference

    Speed up/ speed down No function P 16-02 Analog ref. 200% Ref. in % Pulse ref. -200% Local bus ref. DigiPot No function Analog ref. Pulse ref. Local bus ref. DigiPot Illustration 2.22 Remote Reference Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 35: Reference Limits

    (after clamping) is shown in Illustration 2.23/Illustration 2.24 and the sum of all references is shown in Illustration 2.25. P 3-03 Sum of all P 3-02 references Illustration 2.25 Sum of all References MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 36: Scaling Of Preset References And Bus References

    The endpoints P1 and P2 are defined by the parameters in Table 2.9, depending on which analog or pulse input is -1500 used. Illustration 2.26 Scaling of Analog and Pulse References and Feedback Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 37: Dead Band Around Zero

    And both points defining the scaling graph are in the same quadrant. -1500 The size of the dead band is defined by either P1 or P2 as Quadrant 3 Quadrant 4 shown in Illustration 2.28. Illustration 2.28 Dead Band MG04H302 Danfoss A/S © 05/2018 All rights reserved.
  • Page 38 Low No reversing Digital input High Reversing Limits speed setpoint according to min max speed Motor PID Range: Motor Motor -200 RPM control +200 RPM Illustration 2.30 Example 1 - Positive Reference Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 39 Low No reversing Digital input High Reversing Limits speed setpoint according to min max speed Motor PID Range: Motor Motor -200 RPM control +200 RPM Illustration 2.31 Example 2 - Positive Reference MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 40: Brake Functions

    NOTICE A frequency converter cannot provide Safe Torque Off control of a mechanical brake. A redundancy circuitry for the brake control must be included in the installation. Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 41: Mechanical Brake Selection Guide And Electrical Circuit Description

    I Lm MBR + L3-L2 MBR - Inverter part MBR+ terminal 122 Mechanical brake coil MBR- terminal 123 Solid state switch Galvanic isolated control circuit Illustration 2.33 Electrical Diagram of Mechanical Brake MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 42: Mechanical Brake Control

    When the frequency converter is brought into an alarm phases L1 and L2. condition (that is, an overvoltage situation), or during Safe Torque Off, the mechanical brake immediately cuts in. NOTICE Maximum nominal voltage = 480 AC. Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 43 Set the limit in parameter 2-21 Activate Brake Speed [RPM] or parameter 2-22 Activate Brake Speed [Hz] and only if the frequency converter carries out a stop command. MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 44: Mechanical Brake Cabling

    10% of the cycle time. The dissipation rate, and its physical size. Danfoss brake remaining 90% of the cycle time is used on dissipating resistors are available in several types, for internal or excess heat.

  • Page 45: Brake Resistors 10 W

    The resistance in the the brake resistor circuit should not the metal cabinet of the brake resistor with cable exceed the limits recommended by Danfoss. If a brake clamps. resistor with a higher ohmic value is selected, the 160% •...

  • Page 46: Control With Brake Function

    2.7.2.6 Brake Resistor Cabling EMC (twisted cable/shielding) To reduce the electrical noise from the wires between the brake resistor and the frequency converter, the wires must be twisted. Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 47 (unit+installation), keep motor and brake cables as short as possible. Avoid placing cables with a sensitive signal level alongside motor and brake cables. Radio interference frequency above 50 MHz (airborne) is generated by the control electronics in particular. MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 48: Emission Requirements

    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 2.15 Emission Limit Classes Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 49: Immunity Requirements

    8 kV AD Enclosure — — 10 V/m — 6 kV CD Table 2.16 EMC Immunity 1) Injection on cable shield AD: Air Discharge CD: Contact Discharge CM: Common Mode DM: Differential Mode MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 50: Emc-Correct Installation

    See the manufacturer must be obtained. chapter 2.9.7 EMC Test Results. Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 51 If this cannot be achieved, use the optional PE grounding plug on the ® underside of the VLT Decentral Drive FCD 302. MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 52: Use Of Emc-Correct Cables

    To reduce currents in the shield of the communication cable, always apply a short grounding cable between units that are connected to the same communication cable. Danfoss recommend 91 92 93 95 using minimum 16 mm...

  • Page 53: Grounding Of Shielded Control Cables

    PLC is different, electric noise may occur that disturbs the entire system. Solve this problem by fitting an equalizing cable next to the control cable. Minimum cable cross-section: 16 mm (6 AWG). MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 54: Rfi Switch

    I with 50 Hz as the basic frequency: Harmonic currents 50 Hz 250 Hz 350 Hz Table 2.17 Harmonic Currents Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 55: Effect Of Harmonics In A Power Distribution System

    Design Guide for specific details on each standard. 2.9.5.3 Harmonic Mitigation • In cases where extra harmonic suppression is required, ® 12-pulse frequency converters. Danfoss offers a wide range of mitigation equipment. • ® AHF filters. These are: MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 56: Harmonic Calculation

    Determining the degree of voltage pollution on the grid and needed precaution is done with the Danfoss VLT Harmonic Calculation MCT 31 software. The free tool MCT 31 can be downloaded from www.danfoss.com. The software is built with a focus on user-friendliness and limited to involve only system parameters that are normally accessible.

  • Page 57: System Integration

    Excessive dust particle levels are often found on instal- lation cabinets and existing electrical installations. One indicator of aggressive airborne gases is blackening of copper rails and cable ends on existing installations. MG04H302 Danfoss A/S © 05/2018 All rights reserved.
  • Page 58 FCD 302 P XXX T4 W69, have the Illustration 3.1 FCD 302 Stand-alone Mounted with Mounting EHEDG certification. Brackets Allowed mounting positions Illustration 3.3 Allowed Mounting Positions for Hygienic Applications Illustration 3.2 Allowed Mounting Positions for Standard Applications Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 59: Electrical Input: Mains-Side Dynamics

    Table 3.1 Relay Settings ® For location of relay terminals, refer to VLT Decentral Drive FCD 302 Operating Guide. 1 Looping terminals Illustration 3.5 Large Unit only: Service Switch at Mains with Looping Terminals MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 60: Fuses And Circuit Breakers

    Use of fuses or circuit breakers is mandatory to comply with IEC 60364. Danfoss recommends fuse size up to gG-25. This fuse size Fuses and/or circuit breakers are recommended protection is suitable for use on a circuit capable of delivering...
  • Page 61 1/2” NPT Mains cables M25 3/4” NPT 3/4” NPT 1/2” NPT 24 V M20 1/2” NPT 1/2” NPT Motor M25 3/4” NPT 3/4” NPT Illustration 3.8 Cable Entry Holes - Large Unit MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 62: Mains Disconnectors

    ETR Trip and parameter 1-24 Motor Current is set to the connected as shown in Table 3.3: rated motor current (see motor nameplate). Terminal number Function 96, 97, 98, 99 Mains U/T1, V/T2, W/T3 Ground Table 3.3 Motor Connection - Factory Setting Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 63: Parallel Connection Of Motors

    Standard U =1300 V off individually when the short-circuit current exceeds the 420 V<U ≤500 V Reinforced U =1600 V allowed value (Alarm 16, Trip Lock). Table 3.4 Mains Voltage and Motor Insulation MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 64: Motor Thermal Protection

    The characteristic is shown in OVC cannot be activated when running a PM motor, that Illustration 3.12. is, for parameter 1-10 Motor Construction set to [1] PM non-salient SPM. Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 65: Final Test And Set-Up

    When running high-voltage tests of the entire instal- lation, leakage currents can be high. Failure to follow recommendations could result in death or serious injury. • Interrupt the mains and motor connection if the leakage currents are too high. MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 66: Final Set-Up Check

    Parameter 1-24 Motor Current. Parameter 1-25 Motor Nominal Speed. Select OGD motor data. Barcode 178uxxxxxxxxxxb011 Type OGDHK231K131402L09R1S11P1A9010H1Bxx Set 1-11 Motor Model to 'Danfoss OGD LT 140-65 Nm LT 0..370 rpm i 8,12 max 250 Hz 7,2 A amb 40 °C KTY 84-130 155 °C (F)

  • Page 67: Application Examples

    U - I Ref./Feedb. Value A OUT Parameter 6-15 T 1500 RPM erminal 53 High Ref./Feedb. Value *=Default value Notes/comments: Table 4.1 AMA with T27 Connected Table 4.3 Voltage Analog Speed Reference MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 68: Current Analog Speed Reference

    Parameter 5-13 T [21] Speed Up D IN erminal 29 D IN Digital Input Parameter 5-14 T [22] Speed erminal 32 Down Digital Input *=Default value Notes/comments: Table 4.6 Speed Up/Speed Down Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 69: Start/Stop Applications

    Table 4.7 Start/Stop Command with Safe Torque Off Table 4.8 Pulse Start/Stop Speed Speed Start/Stop (18) Illustration 4.2 Start/Stop Command with Safe Torque Off Latched Start (18) Stop Inverse (27) Illustration 4.3 Pulse Start/Stop MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 70: Start/Stop With Reversing And 4 Preset Speeds

    Reference Preset ref. 0 Preset ref. 1 Preset ref. 2 Preset ref. 3 100% Table 4.10 External Alarm Reset *=Default value Notes/comments: Table 4.9 Start/Stop with Reversing and 4 Preset Speeds Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 71: Rs485 Network Connection

    +10 V parameter 1-90 Motor Thermal A IN Protection should be set to [1] A IN Thermistor warning. A OUT RS-485 U - I Table 4.11 RS485 Network Connection Table 4.12 Motor Thermistor MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 72: Using Slc To Set A Relay

    Table 4.13 Using Smart Logic Controller to Set a Relay Current Parameter 2-21 A Half of ctivate Brake nominal slip Speed [RPM] of the motor *=Default value Notes/comments: Table 4.15 Mechanical Brake Control Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 73: Hoist Mechanical Brake

    2-25 Brake Release Time determines the delay before the load is released. To react as quickly as possible on the load-step that follows brake release, increase the proportional gain to boost the speed PID control. MG04H302 Danfoss A/S © 05/2018 All rights reserved.
  • Page 74 II) Stop delay: When the time between successive starts is shorter than the setting in parameter 2-24 Stop Delay, the frequency converter starts without applying the mechanical brake (for example, reversing). Both relays 1 and 2 can be used to control the brake. Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 75: Encoder

    Description Encoder Mechanical brake Illustration 4.7 24 V Incremental Encoder with Maximum Cable Motor Length 5 m (16.4 ft) Gearbox Transmission Brake resistor Load Illustration 4.8 Basic Set-up for Closed-loop Speed Control MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 76: Smart Logic Control

    It is possible to program from 1 to 20 events and actions. When the last event/action has been executed, the sequence starts over again from event [0]/action [0]. Illustration 4.10 shows an example with 3 event/actions. Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 77 SL Controller Comparator 0 Event Parameter 13-52 [32] Set SL Controller digital out A Action Parameter 5-40 F [80] SL digital unction Relay output A Table 4.16 Using SLC to Set a Relay MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 78: Special Conditions

    The level of heating depends on the load on the motor, temperatures above 40 °C (104 °F) and the operating speed and time. Contact Danfoss for the application note for tables and elaboration. Only the case of running at low motor speeds Constant torque applications (CT mode) is elaborated here.

  • Page 79: Ambient Temperature

    SFAVM - Stator frequency asynchron vector modulation 110% 100% 40 C 45 C 50 C Illustration 5.3 Derating of I for different T for FCD AMB, MAX 302 0.37–0.55–0.75 kW, using SFAVM MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 80: Power Size 2.2–3.0 Kw

    The automatic derating is different when parameter 14-55 Output Filter is set to [2] Sine-Wave Filter Fixed. The automatic derating is made up of contributions from separate functions that evaluate the need. Their interrelationship is illustrated in Illustration 5.9. Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 81 If multiple deratings occur on the same iteration, the resulting switching frequency would be the same as though only the most significant derating occurred by itself (the deratings are not cumulative). Each of these functions is presented in the following sections. MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 82: Sine-Wave Filter Fixed Mode

    ( drop to fswmin immediately ) Fsw, LCP fsw, max SFAVM 60 PWM fsw, min setting Illustration 5.10 The Switching Frequency Limiting Algorithm when the Frequency Converter is Operating with a Fixed Frequency Sine-wave Filter Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 83: Overview Table

    EEPROM along with the other points that limit the derating. fsw [kHz] Iout [%] Illustration 5.11 Derating of Switching Frequency According to Motor Load. f1, f2, I1, and I2 are Coded in EEPROM. MG04H302 Danfoss A/S © 05/2018 All rights reserved.

  • Page 84: High Voltage On The Dc Link

    This means that the expected lifetime of the component decreases for small stator frequencies if no compensation is used. Therefore, for low values of the stator frequency where the temperature variations are large, the switching Danfoss A/S © 05/2018 All rights reserved. MG04H302...

  • Page 85: Current

    Standard Motor at 40 °C (104 °F) NOTICE Oversynchronous speed operation results in decrease of the available motor torque, inversely proportional to the increase in speed. Consider this during the design phase to avoid motor overload. MG04H302 Danfoss A/S © 05/2018 All rights reserved.
  • Page 86 Service switch on mains input with extra looping terminals (large unit only) No display connector (No installation box) Display With display connector No sensor plugs Sensor plugs Direct mount 4xM12: 4 digital inputs Direct mount 6xM12: 4 digital inputs, 2 relay outputs Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 87 Not all choices/options are available for each VLT Decentral Drive FCD 302 variant. To verify if the appropriate version is available, consult the Drive Configurator on the Internet: vltconfig.danfoss.com/ . NOTICE A and D options for FCD 302 are integrated into the control card. Do not use pluggable options for frequency converters.
  • Page 88 Elevation bracket for cable clamp Screw 4 mm x 20 mm Thread forming 3.5 mm x 8 mm • Documentation Depending on options fitted, the box contains 1 or 2 bags and 1 or more booklets. Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 89 • 6.3 Options and Accessories Flux vector torque control. • Permanent magnet motor. Danfoss offers a wide range of options and accessories for Supported encoder types: the frequency converter. • Incremental encoder: 5 V TTL type, RS422, maximum frequency: 410 kHz 6.3.1 Fieldbus Options...
  • Page 90 Transformation ratio Parameter 17-53 Transformation Ratio: 0.1– 1.1 *0.5 Secondary input Maximum 4 V voltage Secondary load Approximately 10 kΩ Table 6.5 Resolver Option MCB 103 Specifications ® Illustration 6.3 Connections for HIPERFACE Encoder - 1 Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 91 • LED 3 is on when the sine signal is OK from resolver. The LEDs are active when parameter 17-61 Feedback Signal Monitoring is set to [1] Warning or [2] Trip. MG04H302 Danfoss A/S © 05/2018 All rights reserved.
  • Page 92 Input capacitance load <10 uF Power-up delay <0.6 s The inputs are protected. Terminal numbers • Terminal 35: - 24 V DC external supply. • Terminal 36: + 24 V DC external supply. Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 93 349.5 mm (13.75 in) WARNING ALARM Bus MS Motor side 1xM20, 1xM25 Control side 2xM20, 9xM16 Illustration 7.1 Small Unit Mains side 2xM25 Also used for 4xM12/6xM12 sensor/actuator sockets. Illustration 7.2 Large Unit MG04H302 Danfoss A/S © 05/2018 All rights reserved.
  • Page 94 LCP and typical control card power consumptions are included. For power loss data according to EN 50598-2, refer to drives.danfoss.com/knowledge-center/energy-efficiency-directive/#/. 3) Efficiency measured at nominal current. For energy efficiency class, see chapter 7.3 General Specifications. For part load losses, see drives.danfoss.com/knowledge-center/energy-efficiency-directive/#/. Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 95 Undervoltage warning Inverter undervoltage re-enable (warning reset) Overvoltage warning (without brake) Dynamic brake turn on Inverter overvoltage re-enable (warning reset) Overvoltage warning (with brake) Overvoltage trip Table 7.3 FCD 302 DC Voltage Level MG04H302 Danfoss A/S © 05/2018 All rights reserved.
  • Page 96 DC link, and low motor speeds. As a response to a critical level, the frequency converter can adjust the switching frequency and/or change the switching pattern to ensure the performance of the frequency converter. Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 97 10 bit (+ sign) Accuracy of analog inputs Maximum error 0.5% of full scale Bandwidth 100 Hz The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. MG04H302 Danfoss A/S © 05/2018 All rights reserved.
  • Page 98 Maximum load GND - analog output less than Accuracy on analog output Maximum error: 0.5% of full scale Resolution on analog output 12 bit The analog output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 99 Control card, 10 V DC output ±50 Terminal number 10.5 V ±0.5 V Output voltage Maximum load 15 mA The 10 V DC supply is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. MG04H302 Danfoss A/S © 05/2018 All rights reserved.
  • Page 100 The USB connection is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. The USB ground connection is not galvanically isolated from protection ground. Use only an isolated laptop as PC connection to the USB connector on the frequency converter. Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 101 Danfoss strongly recommend fitting a dU/dt filter or a The efficiency declines a little when the switching sine-wave filter on the output of the frequency frequency is set to a value of above 5 kHz.
  • Page 102 Inverter measurements FCD 302: P3K0T4 Control Structure in Mains Rise time dU/dt peak Motor cable length voltage [µs] [kV] [V/µs] [m] (ft) 10 (32.8 ft) 0.202 0.68 2693.07 Table 7.8 FCD 302: P3K0T4 Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 103 USB serial communication............98 Hygienic installation................56 Cooling..................... 76 Cross-sections..................94 Immunity requirements..............47 Input DC output, 10 V..................97 Analog input................. 7, 95 Dead band....................35 Digital input..................95 Pulse/encoder input............... 96 Installation....................55 MG04H302 Danfoss A/S © 05/2018 All rights reserved.
  • Page 104 PELV - Protective Extra Low Voltage..........13 Torque control..................14 Point of common coupling............... 53 Process PID control................23 Programming Variable (quadratic) torque applications (VT)......76 Stop....................... 19 Vibration and shock................55 Torque limit..................19 Danfoss A/S © 05/2018 All rights reserved. MG04H302...
  • Page 105 Index Design Guide Voltage level................... 95 VVC+......................9 VVC+ advanced vector control............16 Wiring example..................29 MG04H302 Danfoss A/S © 05/2018 All rights reserved.
  • Page 106 Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies.

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