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Danfoss FC 300 Operating Instruction

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FC 300 Operating Instructions
Contents
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Approvals .............................................................................................
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Symbols ...............................................................................................
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Abbreviations ........................................................................................
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Disposal Instruction ...............................................................................
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Software Version ...................................................................................
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High Voltage Warning .............................................................................
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Safety Instructions .................................................................................
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Avoid Unintended Start ...........................................................................
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Safe Stop of FC 300 ...............................................................................
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IT Mains ............................................................................................... 10
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.................................................................................. 11
How to Get Started ................................................................................ 11
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Accessory Bag ....................................................................................... 13
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Mechanical Installation ........................................................................... 14
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Electrical Installation .............................................................................. 17
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Removal of Knockouts for Extra Cables ..................................................... 17
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Connection to Mains and Earthing ............................................................ 18
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Motor Connection ................................................................................... 20
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Fuses ................................................................................................... 22
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Access to Control Terminals ..................................................................... 24
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Electrical Installation, Control Terminals .................................................... 24
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Connection Examples ............................................................................. 25
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Start/Stop ............................................................................................ 25
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Pulse Start/Stop .................................................................................... 26
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Speed Up/Down .................................................................................... 26
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Potentiometer Reference ......................................................................... 26
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Electrical Installation, Control Cables ........................................................ 27
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Switches S201, S202, and S801 .............................................................. 28
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Final Set-Up and Test ............................................................................. 29
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Additional Connections ........................................................................... 31
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Control of Mechanical Brake .................................................................... 31
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Motor Thermal Protection ........................................................................ 31
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The FC 300 Graphical and Numerical LCP .................................................. 33
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Quick Setup .......................................................................................... 36
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Parameter Lists ..................................................................................... 39
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Parameter Selection ............................................................................... 40
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Warnings/Alarm Messages ...................................................................... 73
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MG.33.A7.02 - VLT is a registered Danfoss trademark
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  • Page 1: Table Of Contents

    Motor Thermal Protection ................ 31 " How to Programme ................ 33 The FC 300 Graphical and Numerical LCP ..........33 " How to Programme on the Graphical Local Control Panel ......33 " How to Programme on the Numerical Local Control Panel ......34 "...
  • Page 2 FC 300 Operating Instructions Index ....................81 MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 3: How To Read These Operating Instructions

    (U/f) to VVC+, and FC 302 ranges from scalar (U/f) to servo performance. These Operating Instructions cover both FC 301 and FC 302. Where information covers both series, we refer to FC 300. Otherwise, we refer specifically to either FC 301 or FC 302. Chapter 1, How to Read these Operating...
  • Page 4 AutomationDrive FC 300 Operating Instructions provide the neccessary information for getting the drive up and running. The VLT ® AutomationDrive FC 300 Design Guide entails all technical information about the drive and customer design and applications including encoder, resolver and relay options. The VLT ®...

  • Page 5: Approvals

    Nominal motor frequency Indicates default setting Nominal motor power Nominal motor voltage Parameter par. Protective Extra Low Voltage PELV Printed Circuit Board Rated Inverter Output Current Revolutions Per Minute Second Torque limit Volts MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 6 FC 300 Operating Instructions How to Read these Operating Instructions MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 7: Safety Instructions And General Warning

    The FC 300 AutomationDrive DC link capacitors remain charged after power has been disconnected. To avoid an electrical shock hazard, disconnect the FC 300 from the mains before carrying out maintenance. Wait at least as follows before doing service on the...

  • Page 8: Software Version

    Shorter time is allowed only if indicated on the nameplate for the specific unit. Leakage Current The earth leakage current from the FC 300 exceeds 3.5 mA. To ensure that the earth cable has a good mechanical connection to the earth connection (terminal 95), the cable cross section must be at least 10 mm or 2 times rated earth wires terminated separately.

  • Page 9: Avoid Unintended Start

    An electronic fault, temporary overload, a fault in the mains supply, or lost motor connection • may cause a stopped motor to start. FC 300 with Safe Stop (i.e. FC301 in A1 enclosure and FC302) provides a certain degree of protection against such unintended start, if the Safe Stop Terminal 37 is on low voltage level or disconnected.

  • Page 10: Safe Stop Installation (Fc 302 And Fc 301 - A1 Enclosure Only)

    Par. 14-50 RFI 1 can on FC 302 be used to disconnect the internal RFI capacitiors from the RFI filter to ground. If this is done it will reduce the RFI performance to A2 level. MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 11: How To Install

    Electrical installation of options is described in the corresponding Instructions and Design Guide MG33.BX.YY. How to Get Started " FC 300 AutomationDrive is designed to achieve Frame size is depending on enclosure type, a quick and EMC-correct installation by following power range and mains voltage the steps described below.
  • Page 12 0.37-4.0 kW 5.5-7.5 kW 0.37-7.5 kW 11-15 kW 18.5-22 kW (380-480 V) (380- (380-480/ (380-480/ (380-500 V) (380-500 V) 480/500V) 500 V) 500 V) 0.75-7.5 kW 0.75-7.5 kW (550-600V ) (550-600 V) MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 13: Accessory Bag

    FC 301 units. For DC link connection (Load sharing) the connector 1 can be ordered separately (Code no 130B1064) An eight pole connector included in accessory bag for FC 301 without Safe Stop. MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 14: Mechanical Installation

    FC 300 IP20 Frame sizes A1, A2 and A3 allows side-by-side installation. Due to cooling conditions, there must be a minimum of 100 mm free air passage above and below the FC 300. If the IP 21 Enclosure kit (130B1122 or 130B1123) is used there must be a clearance between the drives of min 50 mm.
  • Page 15 Mounting frame sizes A5, B1, and B2 on provided with a back plate A due to insufficient a none solid back wall, the drive must be cooling air over the heat sink. MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 16 ø9 mm 5 mm 9 mm 9 mm 9 mm 9 mm 9 mm 9 mm 9 mm 13.5/14.2 2.7 kg 4.9 kg 5.3 kg 6.6 kg 23 kg 27 kg weight MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 17: Electrical Installation

    Cable entry has to be supported around the knockout you intend to remove. The knockout can now be removed with a strong mandrel and a hammer. Remove burrs from the hole. Mount Cable entry on frequency converter. MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 18: Connection To Mains And Earthing

    FC 302 up to 7.5 kW. Fit the two screws in the de-coupling plate, slide it into place and tighten the screws. Make sure the FC 300 is properly earthed. Connect to earth connection (terminal 95). Use screw from the accessory bag.
  • Page 19 Mains connection B1 and B2 (IP 21/NEMA Type1 and IP 55/NEMA Type12) Enclosures Usually the power cables for mains are unshielded cables. MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 20: Motor Connection

    If an unscreened/unarmoured cable filter instruction in Par. 14-01. is used, some EMC requirements are Fasten decoupling plate to the bottom of FC 300 not complied with. For more information, see with screws and washers from the accessory bag. EMC specifications in the VLT AutomationDrive Attach motor cable to terminals 96 (U), FC 300 Design Guide.
  • Page 21 In motors without phase insulation paper or other insulation reinforcement suitable for operation with voltage supply (such as a frequency converter), fit an LC filter on the output of the FC 300. MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 22: Fuses

    The frequency converter must be protected against short-circuit to avoid electrical or fire hazard. Danfoss recommends using the fuses mentioned below to protect service personnel or other equipment in case of an internal failure in the drive. The frequency converter provides full short circuit protection in case of a short-circuit on the motor output.
  • Page 23 L50S fuses from LITTEL FUSE may substitute L50S fuses for 240 V frequency converters. A6KR fuses from FERRAZ SHAWMUT may substitute A2KR for 240 V frequency converters. A50X fuses from FERRAZ SHAWMUT may substitute A25X for 240 V frequency converters. MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 24: Access To Control Terminals

    Remove the screw driver. The cable is now mounted to the terminal. To remove the cable from the terminal: Insert a screw driver in the square hole. Pull out the cable. Max. 0.4 x 2.5 mm MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 25: Connection Examples

    Start/Stop " Terminal 18 = Par. 5-10 [8] Start Terminal 27 = Par. 5-12 [0] No operation (Default coast inverse) Terminal 37 = Safe stop (FC 302 and FC 301 A1 only) MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 26: Pulse Start/Stop

    Terminal 53, Low Voltage = 0 Volt Terminal 53, High Voltage = 10 Volt Terminal 53, Low Ref./Feedback = 0 RPM Terminal 53, High Ref./Feedback = 1500 RPM Switch S201 = OFF (U) MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 27: Electrical Installation, Control Cables

    If this occurs, you may have to break the screen or insert a 100 nF capacitor between screen and chassis. The digital and analog in- and outputs must be connected separately to the FC 300 common inputs (terminal 20, 55, 39) to avoid ground currents from both groups to affect other groups. For example, switching on the digital input may disturb the analog input signal.

  • Page 28: Switches S201, S202, And S801

    NB!: Control cables must be screened/ar- moured. Use a clamp from the accessory bag to connect the screen to the FC 300 decoupling plate for control cables. See section entitled Earthing of Screened/Armoured Control Cables for the correct termination of control cables.

  • Page 29: Final Set-Up And Test

    AMA, or remove the LC filter during the AMA procedure. Press the [OK] key. The display shows “Press [Hand on] to start”. Press the [Hand on] key. A progress bar indicates if the AMA is in progress. MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 30 "Report Value” in the [Alarm Log] shows the last measuring sequence carried out by the AMA, before the frequency converter entered alarm mode. This number along with the description of the alarm will assist you in troubleshooting. If you contact Danfoss Service, make sure to mention number and alarm description.

  • Page 31: Additional Connections

    RPM values. The electronic thermal relay (ETR) of the FC 300 cannot be used as motor protection for the individual motor in systems with motors connected in parallel. Further motor protection must be provided, e.g. thermistors in each motor or individual thermal relays.
  • Page 32 FC 300 Operating Instructions How to Install MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 33: How To Programme

    " The easiest programming of FC 300 frequency converters is performed by the Graphical Local Control Panel (G-LCP): It is necessary to consult FC 300 Design Guide when using Numeric Local Control Panel (N-LCP). How to Programme on the Graphical "...

  • Page 34: How To Programme On The Numerical Local Control Panel

    The control panel is divided into four functional groups: Numerical display. Menu keys and indicator lights - changing parameters and switching between display functions. Navigation keys and indicator lights (LEDs). Operation keys and indicator lights (LEDs). MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 35 1-25) Set the ramping down time with 3-43 Ramp1 down time reference to nominal motor speed (set in par. 1-25) Set the site from where the reference 3-13 Reference site must work MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 36: Quick Setup

    Language package 4 consists of: while the motor is running. English, German, Spanish, English US, Greek, Brazilian Portuguese, Turkish and Polish. default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 37 Range: Function: -100000.000 - par. 3-03 0.000 Unit The AMA function optimises dynamic motor performance by automatically optimising the default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 38 4-18 during ramping. The value 0.00 corresponds to 0.01 sec. in speed mode. See ramp-down time in par. 3-42. default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 39: Parameter Lists

    Bit sequence of 16 boolean variables Time difference w/o date TimD See the FC 300 Design Guide for further information about data types 33, 35 and 54. default setting display text value for use in communication via serial communication port...

  • Page 40: Parameter Selection

    FC 300 Operating Instructions How to Programme Parameters for FC 300 are grouped into various correct parameters for optimized operation parameter groups for easy selection of the of the frequency converter. 1-xx Load and Motor parameters includes all load and motor related parameters...
  • Page 41 0-65 Quick Menu Password 1 set-up TRUE Uint16 0-66 Access to Quick Menu w/o Password [0] Full access 1 set-up TRUE Uint8 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 42 [0] Passive load All set-ups TRUE Uint8 1-68 Minimum Inertia All set-ups FALSE Uint32 1-69 Maximum Inertia All set-ups FALSE Uint32 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 43 1-96 KTY Thermistor Resource [0] None All set-ups TRUE Uint8 1-97 KTY Threshold level 80 °C 1 set-up TRUE Int16 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 44 2-22 Activate Brake Speed [Hz] All set-ups TRUE Uint16 2-23 Activate Brake Delay 0.0 s All set-ups TRUE Uint8 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 45 50 % All set-ups TRUE Uint8 3-68 Ramp 3 S-ramp Ratio at Decel. End 50 % All set-ups TRUE Uint8 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 46 Int16 3-94 Minimum Limit -100 % All set-ups TRUE Int16 3-95 Ramp Delay 1.000 N/A All set-ups TRUE TimD default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 47 Uint16 4-62 Bypass Speed To [RPM] All set-ups TRUE Uint16 4-63 Bypass Speed To [Hz] All set-ups TRUE Uint16 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 48 Terminal X30/6 Pulse Output 5-66 Variable All set-ups TRUE Uint8 5-68 Pulse Output Max Freq #X30/6 All set-ups TRUE Uint32 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 49 5-95 Pulse Out #29 Bus Control 0.00 % All set-ups TRUE 5-96 Pulse Out #29 Timeout Preset 0.00 % 1 set-up TRUE Uint16 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 50 6-61 Terminal X30/8 Min. Scale 0.00 % All set-ups TRUE Int16 6-62 Terminal X30/8 Max. Scale 100.00 % All set-ups TRUE Int16 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 51 Uint16 7-38 Process PID Feed Forward Factor All set-ups TRUE Uint16 7-39 On Reference Bandwidth All set-ups TRUE Uint8 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 52 8-90 Bus Jog 1 Speed 100 RPM All set-ups TRUE Uint16 8-91 Bus Jog 2 Speed 200 RPM All set-ups TRUE Uint16 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 53 All set-ups FALSE Uint16 9-93 Changed parameters (4) All set-ups FALSE Uint16 9-94 Changed parameters (5) All set-ups FALSE Uint16 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 54 Uint32 10-5* CANopen 10-50Process Data Config Write. 2 set-ups TRUE Uint16 10-51Process Data Config Read. 2 set-ups TRUE Uint16 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 55 2 set-ups TRUE Uint8 13-5* States 13-51SL Controller Event 2 set-ups TRUE Uint8 13-52SL Controller Action 2 set-ups TRUE Uint8 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 56 TRUE Uint8 14-53Fan Monitor [1] Warning All set-ups TRUE Uint8 14-55Output Filter [0] No Filter 1 set-up FALSE Uint8 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 57 VisStr[20] 15-51 Frequency Converter Serial Number All set-ups FALSE VisStr[10] 15-53 Power Card Serial Number All set-ups FALSE VisStr[19] default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 58 15-92 Defined Parameters All set-ups FALSE Uint16 15-93 Modified Parameters All set-ups FALSE Uint16 15-99 Parameter Metadata All set-ups FALSE Uint16 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 59 All set-ups FALSE Int16 16-52Feedback [Unit] 0.000 All set-ups FALSE Int32 16-53Digi Pot Reference 0.00 All set-ups FALSE Int16 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 60 16-92Warning Word All set-ups FALSE Uint32 16-93Warning word 2 All set-ups FALSE Uint32 16-94Ext. Status Word All set-ups FALSE Uint32 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 61 17-6* Monitoring and App. 17-60Feedback Direction [0] Clockwise All set-ups FALSE Uint8 17-61Feedback Signal Monitoring [1] Warning All set-ups TRUE Uint8 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 62 Uint8 32-83Velocity Resolution 2 set-ups TRUE Uint32 32-84Default Velocity 2 set-ups TRUE Uint32 32-85Default Acceleration 2 set-ups TRUE Uint32 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 63 2 set-ups TRUE Uint8 33-46Target Window LimitValue 2 set-ups TRUE Uint16 33-47Size of Target Window 2 set-ups TRUE Uint16 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 64 33-84Behaviour afterEsc. [0] Controlled stop 2 set-ups TRUE Uint8 33-85MCO Supplied by External 24VDC [0] No 2 set-ups TRUE Uint8 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 65 34-7* Diagnosis readouts 34-70MCO Alarm Word 1 All set-ups FALSE Uint32 34-71MCO Alarm Word 2 All set-ups FALSE Uint32 default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 66 FC 300 Operating Instructions How to Programme default setting display text value for use in communication via serial communication port MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 67: General Specifications

    Starting torque ................. maximum 180% up to 0.5 sec. Overload torque (Constant torque) ............. maximum 160% for 1 min. *Percentage relates to FC 300’s nominal torque. Digital inputs: Programmable digital inputs ..............FC 301: 4 (5) / FC 302: 4 (6) Terminal number ..................
  • Page 68 Accuracy of analog inputs ................. Max. error 0.5% of full scale Bandwidth ..................FC 301: 20 Hz / FC 302: 100 Hz The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 69 Terminal number ......................... 50 Output voltage ......................10.5 V ±0.5 V Max. load ..........................15 mA The 10 V DC supply is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 70 Max. motor cable length, unscreened/unarmoured ........FC 301: 75 m / FC 302: 300 m Max. cross section to motor, mains, load sharing and brake (see section Electrical Data in the FC 300 Design Guide MG.33.BX.YY for more information), (0.25 kW - 7.5 kW) ........4 mm / 10 AWG Max.
  • Page 71 Monitoring of the intermediate circuit voltage ensures that the frequency converter trips • if the intermediate circuit voltage is too low or too high. The frequency converter is protected against earth faults on motor terminals U, V, W. • MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 72 FC 300 Operating Instructions General Specifications MG.33.A7.02 - VLT is a registered Danfoss trademark...

  • Page 73: Warnings And Alarms

    Alarms that are trip-locked offer additional protection, meaning that the mains supply must be switched off before the alarm can be reset. After being switched back on, the FC 300 is no longer blocked and may be reset as described above once the cause has been rectified.
  • Page 74 Drive Initialised to Default Value Encoder Loss 17-61 Analogue input 54 wrong settings S202 New spare part 14-23 (X) Dependent on parameter LED indication Warning yellow Alarm flashing red Trip locked yellow and red MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 75 6-20, or 6-22 respectively. to the frequency converter. WARNING 5 DC link voltage high: The intermediate circuit voltage (DC) is higher than the overvoltage limit of the control system. The frequency converter is still active. MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 76 The voltages stated are the intermediate circuit motor operation) or the torque is higher than the voltage of the FC 300 with a tolerance of ± 5 %. The value in par. 4-17 (in regenerative operation). corresponding mains voltage is the intermediate WARNING/ALARM 13 circuit voltage (DC-link) divided by 1.35...
  • Page 77 WARNING 27 Brake chopper fault: The brake transistor is monitored during operation and if it short-circuits, the brake function disconnects and the warning comes up. The frequency converter MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 78 Contact your Danfoss supplier. 1299 Option SW in slot A is too old 1300 Option SW in slot B is too old 1301 Option SW in slot C0 is too old MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 79 Contact your Danfoss supplier. Switch S202 has to be set in position OFF WARNING 61 (voltage input) when a KTY sensor is connected Encoder loss: to analogue input terminal 54. Contact your Danfoss supplier. MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 80 The frequency converter type code must be restored in the E^2PROM. Select the correct type code in Par 14-23 according to the label on unit. Remember to select ‘Save to EEPROM’ to complete. MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 81 Earth leakage current ............ Motor output ........Electrical Installation 24, 27 ........Motor overload protection ..........Electrical terminals ..........Motor Power [kW] ......................Motor protection ........Motor Thermal Protection ........... Motor Voltage MG.33.A7.02 - VLT is a registered Danfoss trademark...
  • Page 82 Shaft performance level ........Side-by-side installation ..........Speed Up/Down ............Start/Stop ........Stator leakage reactance ..........Status messages ........... Surroundings ......Switches S201, S202, and S801 ............Symbols ......... Torque characteristics ..........Unintended Start MG.33.A7.02 - VLT is a registered Danfoss trademark...

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