Danfoss VLT AutomationDrive FC 300 Instruction Manual
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Danfoss VLT AutomationDrive FC 300 Instruction Manual

90 kw–315 kw d-frame
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MAKING MODERN LIVING POSSIBLE
Instruction Manual, 90 kW–315 kW D-frame
VLT® AutomationDrive FC 300

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Summary of Contents for Danfoss VLT AutomationDrive FC 300

  • Page 1 MAKING MODERN LIVING POSSIBLE Instruction Manual, 90 kW–315 kW D-frame VLT® AutomationDrive FC 300...
  • Page 3 Use appropriate caution to guard against an unintended start. Table 1.2 ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 4 ® Automation Drive D-Frame Safety Instruction Manual ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 5: Table Of Contents

    2.5.3 Grounding of Shielded Control Cables 3-22 2.5.4 Control Terminal Types 3-23 2.5.5 Wiring to Control Terminals 3-24 2.5.6 Control Terminal Functions 3-24 2.6 Serial Communication 3-25 2.7 Optional Equipment 3-25 ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 6 5.2 Programming Example 5.3 Control Terminal Programming Examples 5.4 International/North American Default Parameter Settings 5.5 Parameter Menu Structure 5.6 Remote Programming with MCT 10 Set-up Software 6 Application Examples 6.1 Introduction ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 7 10.2 General Technical Data 11-4 10.3 Fuse Tables 11-8 10.3.1 Protection 11-8 10.3.2 Fuse Selection 11-8 10.3.3 Short Circuit Current Rating (SCCR) 11-9 10.3.4 Connection Tightening Torques 11-10 12 Index 12-1 ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 8 ® Automation Drive D-Frame Contents Instruction Manual ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 9: Introduction

    15 Line power input terminals 91 (L1), 92 (L2), 93 (L3) Relay 1 (01, 02, 03) 16 TB5 (IP21/54 only). Terminal block for anti-condensation heater Table 1.1 NOTE! For location of TB6 (terminal block for contactor), see 2.4.3.2 Terminal Locations: D5h-D8h. ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 10: Extended Options Cabinets

    Figure 1.3 shows an example of an adjustable frequency drive with an options cabinet. Table 1.2 lists the variants for the adjustable frequency drives that include input options. 1754 [69.1] Figure 1.3 D7h Enclosure ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 11: Purpose Of The Manual

    Contact the local Danfoss prevents the cabinet door from being opened while the supplier or visit the Danfoss website: http:// adjustable frequency drive is energized. Before opening www.danfoss.com/BusinessAreas/DrivesSolutions/ the door of the adjustable frequency drive, the disconnect Documentations/Technical+Documentation.htm, for...

  • Page 12: Internal Controller Functions

    • User interface and external commands are monitored and performed • Status output and control can be provided Table 1.3 Adjustable Frequency Drive Internal Components ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 13: Frame Sizes And Power Ratings

    400 V 500 V 525 V 690 V Table 1.4 kW Rated Adjustable Frequency Drives HP High Overload HP Normal Overload 460 V 575 V Table 1.5 HP Rated Adjustable Frequency Drives ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 14 ® Automation Drive D-Frame Introduction Instruction Manual ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 15: Installation

    (113°F) and 50°C (122°F) and elevation 1,000 m Voltage [V] Altitude restrictions (3,300 ft) above sea level must be considered. See 380–500 At altitudes above 10,000 ft [3 km], contact Danfoss ® Design Guide for detailed information. regarding PELV The high power adjustable frequency drives utilize a 525–690...

  • Page 16: Lifting

    The angle from the top of the adjustable frequency drive lation site: to the lifting cables should be 60° or greater. • Clearance space for cooling • Clearance for opening the door • Cable entry clearance from the bottom ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 17: Electrical Installation

    Failure to isolate power, motor and control wiring could result in less than optimum adjustable frequency drive and associated equipment performance. ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 18 32 (D IN) (N RS-485) 69 0V (PNP) 24V (NPN) (COM RS-485) 61 33 (D IN) 0V (PNP) (PNP) = Source (NPN) = Sink 37 (D IN) - option Figure 2.2 Interconnect Diagram ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 19 Figure 2.3 Example of Proper Electrical Installation Using Conduit protection, see Figure 2.4. If not factory supplied, fuses must be provided by the installer as part of installation. See maximum fuse ratings in 10.3.1 Protection. ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 20: Grounding Requirements

    DC component, which can • Danfoss recommends that all power connections charge the filter capacitors and cause a transient ground be made with a minimum 167° F [75°C] rated current. The ground leakage current depends on various copper wire.

  • Page 21: Grounding Ip20 Enclosures

    Do not install power factor correction capacitors between the adjustable frequency drive and the motor • Do not wire a starting or pole-changing device between the adjustable frequency drive and the motor. ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 22: Terminal Locations: D1H-D4H

    Follow the motor manufacturer wiring requirements 2.4.3.1 Terminal Locations: D1h-D4h SECTION A-A SECTION B-B MAINS TERMINALS MOTOR TERMINALS MAINS TERMINAL MOTOR TERMINAL GROUND 88 3X M8x20 STUD WITH NUT Figure 2.7 Terminal Locations D1h ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 23 BRAKE TERMINALS BRAKE TERMINAL 11.5 MAINS TERMINAL MOTOR TERMINAL Figure 2.8 Terminal Locations D3h [2.0] [3.9] [7.5] [3.0] Figure 2.9 Load share and Regeneration Terminals, D3h Front view Side view Table 2.3 ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 24 Figure 2.10 Terminal Locations D2h SECTION B-B SECTION A-A MOTOR TERMINALS AND MAINS TERMINALS BRAKE BRAKE TERMINALS TERMINALS BRAKE / REGEN TERMINAL MAINS TERMINAL 14.8 12.6 MOTOR TERMINAL Figure 2.11 Terminal Locations D4h ® 2-10 MG34U222 - VLT is a registered Danfoss trademark...
  • Page 25 ® Automation Drive D-Frame Installation Instruction Manual [3.7] [4.9] [3.0] [7.5] Figure 2.12 Load share and Regeneration Terminals, D4h Front view Side view Table 2.4 ® MG34U222 - VLT is a registered Danfoss trademark 2-11...

  • Page 26: Terminal Locations: D5H-D8H

    MAINS TERMINAL BRAKE TERMINAL 9 [ ] GROUND 148 GROUND 2X 118 MOTOR TERMINAL 3X M10X20 STUD WITH NUT 0 [ ] Figure 2.13 Terminal Locations, D5h with Disconnect Option ® 2-12 MG34U222 - VLT is a registered Danfoss trademark...
  • Page 27 BRAKE/REGEN TERMINALS MAINS TERMINAL TB6 Terminal block for contactor 18.0 BRAKE TERMINAL 3X M10X20 STUD WITH NUT GROUND 153 GROUND 3X123 MOTOR TERMINAL Figure 2.15 Terminal Locations, D6h with Contactor Option ® MG34U222 - VLT is a registered Danfoss trademark 2-13...
  • Page 28 ® Automation Drive D-Frame Installation Instruction Manual SECTION A-A MAINS TERMINALS TB6 Terminal block for contactor MAINS TERMINAL Figure 2.16 Terminal Locations, D6h with Contactor and Disconnect Options ® 2-14 MG34U222 - VLT is a registered Danfoss trademark...
  • Page 29 ® Automation Drive D-Frame Installation Instruction Manual SECTION A-A MAINS TERMINALS MAINS TERMINAL 18.4 Figure 2.17 Terminal Locations, D6h with Circuit Breaker Option ® MG34U222 - VLT is a registered Danfoss trademark 2-15...
  • Page 30 MAINS TERMINAL 21.4 20.3 GROUND 412 16.2 15.6 BRAKE GROUND 3X 372 14.7 TERMINAL 4X M10X20 STUD WITH NUT 0 [ ] Figure 2.18 Terminal Locations, D7h with Disconnect Option ® 2-16 MG34U222 - VLT is a registered Danfoss trademark...
  • Page 31 1202 47.3 1082 42.6 MOTOR TERMINAL GROUND 2X 1034 40.7 GROUND 2X 1009 4X M10X20 STUD 39.7 WITH NUT 0 [ ] Figure 2.19 Terminal Locations, D7h with Brake Option ® MG34U222 - VLT is a registered Danfoss trademark 2-17...
  • Page 32 35.3 MOTOR TERMINAL BRAKE TERMINAL 4X M10X20 STUD 20.5 WITH NUT GROUND 418 16.5 15.8 GROUND 3X 378 14.9 0 [ ] Figure 2.20 Terminal Locations, D8h with Contactor Option ® 2-18 MG34U222 - VLT is a registered Danfoss trademark...
  • Page 33 ® Automation Drive D-Frame Installation Instruction Manual SECTION C-C MAINS TERMINALS TB6 Terminal block for contactor MAINS TERMINAL 22.3 Figure 2.21 Terminal Locations, D8h with Contactor and Disconnect Options ® MG34U222 - VLT is a registered Danfoss trademark 2-19...
  • Page 34 ® Automation Drive D-Frame Installation Instruction Manual SECTION D-D MAINS TERMINALS MAINS TERMINAL 23.8 Figure 2.22 Terminal Locations, D8h with Circuit Breaker Option ® 2-20 MG34U222 - VLT is a registered Danfoss trademark...

  • Page 35: Motor Cable

    IEC 61800-3. • Connect 3-phase AC input power wiring to terminals L1, L2, and L3 (see Figure 2.23) ® MG34U222 - VLT is a registered Danfoss trademark 2-21...

  • Page 36: Control Wiring Connection

    ® Automation Drive D-Frame Installation Instruction Manual This is the typical Danfoss reference cable. 2.5 Control Wiring Connection Double-layer braided copper wire Twin layer of braided copper wire with a • Isolate control wiring from high power magnetic, shielded/armored intermediate layer...

  • Page 37: Control Terminal Types

    24 V DC terminal supply voltage, and a common for optional customer-supplied 24 V DC voltage • Connector 2 terminals (+)68 and (-)69 are for an RS-485 serial communications connection ® MG34U222 - VLT is a registered Danfoss trademark 2-23...

  • Page 38: Wiring To Control Terminals

    The default terminal programming is intended to initiate adjustable frequency drive functioning in a typical operational mode Figure 2.31 Location of Terminals 53 and 54 Switches and Bus Termination Switch ® 2-24 MG34U222 - VLT is a registered Danfoss trademark...

  • Page 39: Serial Communication

    Figure 2.32 shows both the covered and uncovered terminals. 2.7.5 line Power Shield The line power shield is a Lexan cover installed inside the enclosure to provide protection according to VBG-4 accident-prevention requirements. ® MG34U222 - VLT is a registered Danfoss trademark 2-25...

  • Page 40: Line Power Disconnect

    UL rating of the adjustable frequency drive and a short circuit current rating of 100,000 A. See 10.3 Fuse Tables for fuse recommendations. ® 2-26 MG34U222 - VLT is a registered Danfoss trademark...

  • Page 41: Startup And Commissioning

    Ensure that all switch and disconnect settings are in the proper positions • Vibration Check that the unit is mounted solidly or that shock mounts are used, as necessary. • Check for an unusual amount of vibration Table 3.1 Startup Check List ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 42: Applying Power

    The recommended parameter settings are intended for startup and checkout purposes. Application settings may vary. See 4.1 Local ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 43 Select language and press [OK]. Then enter the motor data in 1-20 Motor Power [kW] /1-21 Motor Power [HP] to 1-25 Motor Nominal Speed. The information can be found on the motor nameplate. ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 44: Local Control Test

    Alarms. • Check that motor data is entered correctly. • Increase the ramp-down time decel time in 3-42 Ramp 1 Ramp Down Time. • Enable overvoltage control in 2-17 Over-voltage Control. ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 45: User Interface

    Navigation keys for programming functions, moving the display cursor, and speed control in local operation. Also included are the status indicator lights. Operational mode keys and reset. ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 46: Setting Lcp Display Values

    For details about the adjustable frequency drive before it entered the alarm mode, select the alarm number using the Auto Remote Running navigation keys and press [OK]. Table 4.2 Figure 4.3 ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 47: Navigation Keys

    A fault condition causes the red restore factory default settings does not change alarm light to flash and an alarm data stored in the LCP memory. text is displayed. Table 4.4 ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 48: Uploading Data To The Lcp

    Restoring the adjustable frequency drive parameter • 15-05 Over Volt's settings back to default values is done by initialization of the adjustable frequency drive. Initialization can be through 14-22 Operation Mode or manually. ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 49: Programming

    This is a common pump or fan application. Press [Quick Menu] and select the following parameters using the navigation keys to scroll to the titles and press [OK] after each action. ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 50 The scroll bar on the right in the last figure of the display is at the bottom, indicating the procedure is complete. Figure 5.10 shows the wiring connections used to enable this set-up. ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 51: Control Terminal Programming Examples

    3-** Reference / Ramps 1-23 Motor 50 Hz 60 Hz 4-** Limits / Warnings Frequency 5-** Digital In/Out 3-03 Maximum 50 Hz 60 Hz Reference Figure 5.11 3-04 Reference External/Preset Function ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 52: Parameter Menu Structure

    • Press and hold [Main Menu] to enter a parameter number for direct access to that parameter • Details for common application set-ups are provided in 6 Application Examples ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 53 ® Automation Drive D-Frame Programming Instruction Manual ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 54 ® Automation Drive D-Frame Programming Instruction Manual ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 55 ® Automation Drive D-Frame Programming Instruction Manual ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 56 ® Automation Drive D-Frame Programming Instruction Manual ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 57: Remote Programming With Mct 10 Set-Up Software

    Instruction Manual 5.6 Remote Programming with MCT 10 Set- up Software Danfoss has a software program available for developing, storing, and transferring adjustable frequency drive programming. The MCT 10 Set-up Software allows the user to connect a PC to the adjustable frequency drive and perform live programming rather than using the LCP.
  • Page 58 ® Automation Drive D-Frame Programming Instruction Manual ® 5-10 MG34U222 - VLT is a registered Danfoss trademark...

  • Page 59: Application Examples

    +10 V A OUT A IN -10 - +10V A IN U - I A OUT Table 6.3 Analog Speed Reference (Voltage) Table 6.1 AMA with T27 Connected ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 60 [0] No operation, a jumper wire to terminal 27 is A IN not needed. A IN A OUT Latched Start (18) Stop Inverse (27) Figure 6.2 Table 6.5 Start/Stop Command with Safe Stop ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 61 D IN +10 V D IN A IN D IN A IN +10 V A OUT A IN A IN A OUT Table 6.8 External Alarm Reset Table 6.10 Speed Up/Down ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 62 Select protocol, address and D IN baud rate in the above D IN mentioned parameters. D IN +10 V A IN A IN A OUT RS-485 Table 6.11 RS-485 Network Connection ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 63 5 sec then the adjustable frequency drive continues and the warning disappears. But Relay 1 will still be triggered until [Reset] on the LCP. Table 6.13 Using SLC to Set a Relay ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 64 ® Automation Drive D-Frame Application Examples Instruction Manual ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 65: Status Messages

    2-12 Brake Power Limit (kW) is reached. • Coast Coast inverse was selected as a function for a digital input (parameter group 5-1* Digital Inputs). The corresponding terminal is not connected. • Coast activated by serial communication ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 66 Protection mode can be restricted in 14-26 Trip Delay at Inverter Fault Freeze output A freeze output command has been given, request but the motor will remain stopped until a run permissive signal is received. ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 67 An alarm occurred and the motor is stopped. Once the cause of the alarm is cleared, the adjustable frequency drive can be reset manually by pressing [Reset] or remotely by control terminals or serial communication. ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 68 ® Automation Drive D-Frame Status Messages Instruction Manual ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 69: Warnings And Alarms

    Digital reset input command • Serial communication reset input command • Auto reset In addition to the text and alarm code on the adjustable frequency drive LCP, there are three status indicator lights. ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 70: Warning And Alarm Definitions

    8-04 Control Timeout Function Temp. Input Error Param Error Hoist Mech. Brake Parameter Group 2-2* Internal Fans External Fans 14-53 Fan Monitor Brake resistor short-circuited Brake resistor power limit 2-13 Brake Power Monitoring ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 71 Option Configuration has Changed Safe Stop 5-19 Terminal 37 Safe Stop Illegal FC configuration PTC 1 Safe Stop Dangerous Failure Safe Stop Auto Restart 5-19 Terminal 37 Safe Stop PTC Thermistor ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 72: Fault Messages

    11 and 12 for signals, terminal 10 common. MCB Troubleshooting Remove the wiring from terminal 50. If the warning clears, the problem is with the customer wiring. If the warning does not clear, replace the control card. ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 73 The time delay varies WARNING/ALARM 11, Motor thermistor overtemp with unit size. The thermistor might be disconnected. Select whether the adjustable frequency drive gives a warning or an alarm in 1-90 Motor Thermal Protection. ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 74 If 8-04 Control Word Timeout Function is set to Stop and can be reset externally. Trip, a warning appears and the adjustable frequency drive ramps down until it trips then displays an alarm. ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 75 There is a risk of substantial power being transmitted to Remove power from the adjustable frequency drive and the brake resistor if the brake transistor is short-circuited. check motor phase U. ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 76 Check that the option is properly installed correctly. Check for loose or missing wiring 2049 Power data restarted It may be necessary to contact your Danfoss supplier or 2064-2072 H081x: option in slot x has restarted service department. Note the code number for further 2080-2088 H082x: option in slot x has issued a power-up wait troubleshooting directions.
  • Page 77 5126 Option in slot C1: Hardware incompatible with ALARM 50, AMA calibration failed control board hardware. Contact your Danfoss supplier or Danfoss Service 5376-6231 Out of memory Department. Table 8.3 ALARM 51, AMA check U...
  • Page 78 Reset the unit to clear the alarm. since the last power-down. Check that the configuration ALARM 81, CSIV corrupt change is intentional and reset the unit. CSIV file has syntax errors. ® 8-10 MG34U222 - VLT is a registered Danfoss trademark...
  • Page 79 Reset the adjustable frequency drive for normal operation. WARNING 251, New type code The power card or other components have been replaced and the type code changed. Reset to remove the warning and resume normal operation. ® MG34U222 - VLT is a registered Danfoss trademark 8-11...
  • Page 80 ® Automation Drive D-Frame Warnings and Alarms Instruction Manual ® 8-12 MG34U222 - VLT is a registered Danfoss trademark...

  • Page 81: Basic Troubleshooting

    Check the wiring for shorts or Intermittent display frequency drive. terminal blocks. incorrect connections. If the display continues to cut out, follow the procedure for display dark. ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 82 Possible incorrect settings in the Check brake parameters. Check Check parameter group 2-0* DC Motor will not brake brake parameters. Possible too ramp time settings. Brake and 3-0* Reference Limits. short ramp-down times. ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 83 Change switching pattern and acceptable limit. certain frequencies) frequency in parameter group 14-0* Inverter Switching. Increase Resonance Dampening in 1-64 Resonance Dampening. Table 9.1 ® MG34U222 - VLT is a registered Danfoss trademark...
  • Page 84 ® Automation Drive D-Frame Basic Troubleshooting Instruction Manual ® MG34U222 - VLT is a registered Danfoss trademark...

  • Page 85: Specifications

    230° F [110°C] Control card ambient trip 167° F [75°C] *High overload=150% current for 60 s, Normal overload=110% current for 60 s. Table 10.1 Line Power Supply 3x380–500 V AC ® MG34U222 - VLT is a registered Danfoss trademark 10-1...
  • Page 86 230° F [110°C] Control card ambient trip 167° F [75°C] *High overload=150% current for 60 s, Normal overload=110% current for 60 s. Table 10.2 Line Power Supply 3x525–690 V AC ® 10-2 MG34U222 - VLT is a registered Danfoss trademark...
  • Page 87 D1h ratings+disconnect and/or brake chopper 166 (255) D1h ratings+contactor and/or circuit breaker 129 (285) D2h ratings+disconnect and/or brake chopper 200 (440) D2h ratings+contactor and/or circuit breaker 225 (496) Table 10.4 D5h–D8h Weights ® MG34U222 - VLT is a registered Danfoss trademark 10-3...

  • Page 88: General Technical Data

    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. ® 10-4 MG34U222 - VLT is a registered Danfoss trademark...
  • Page 89 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). ® MG34U222 - VLT is a registered Danfoss trademark 10-5...
  • Page 90 1) IEC 60947 t 4 and 5 The relay contacts are galvanically isolated from the rest of the circuit by reinforced isolation (PELV). 2) Overvoltage Category II 3) UL applications 300 V AC 2 A ® 10-6 MG34U222 - VLT is a registered Danfoss trademark...
  • Page 91 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. ® MG34U222 - VLT is a registered Danfoss trademark 10-7...

  • Page 92: Fuse Tables

    10.3.2 Fuse Selection overcurrent protected according to national/international regulations. Danfoss recommends using the following fuses which will Short-circuit Protection: ensure compliance with EN50178. In case of malfunction, The adjustable frequency drive must be protected against not following the recommendation may result in short-circuit to avoid electrical or fire hazard.

  • Page 93: Short Circuit Current Rating (Sccr)

    Table 10.9 Adjustable Frequency Drive Supplied with a Contactor With a Bussmann type LPJ-SP or Gould Shawmut type AJT fuse. 450 A max fuse size for D6h and 900 A max fuse size for D8h. ® MG34U222 - VLT is a registered Danfoss trademark 10-9...

  • Page 94: Connection Tightening Torques

    Line power Motor 19-40 (168-354) Load sharing Regen Ground 8.5–20.5 (75-181) Brake D2h/D4h Line power Motor Regen 19-40 (168-354) Load sharing Ground Brake 8.5–20.5 (75-181) Table 10.10 Torque for Terminals ® 10-10 MG34U222 - VLT is a registered Danfoss trademark...

  • Page 95: Index

    Closed-loop..................2-24 Equalizing Cable................2-22 Communication Option..............8-8 External Conduit................... 2-5, 3-1 Commands................1-4, 7-1 Controllers..................1-3 Interlock..................... 5-4 Voltage....................5-1 Fault Log....................... 4-2 Messages................... 8-4 Feedback..............2-24, 3-1, 8-9, 7-1 ® MG34U222 - VLT is a registered Danfoss trademark 12-1...
  • Page 96 Optional Equipment..............3-2, 1-3 Site....................... 2-1 Output Isolated Line Power................2-21 Current................7-1, 8-5, 10-6 Signal....................5-4 Overcurrent................... 7-1 Overload Protection..............2-1, 2-5 Leakage Current (>3.5 MA).............. 2-6 Overvoltage.................. 3-4, 7-1 Lifting...................... 2-2 ® 12-2 MG34U222 - VLT is a registered Danfoss trademark...
  • Page 97 Serial Communication..... 1-3, 2-22, 2-23, 4-3, 7-1, 2-25 Setpoint....................7-1 Wire Type And Ratings..............2-6 Set-up...................... 4-2 Wiring To Control Terminals............2-24 Shielded Cable................... 2-3, 3-1 Control Cables................2-22 Wire..................... 2-5 ® MG34U222 - VLT is a registered Danfoss trademark 12-3...
  • Page 98 130R0291 MG34U222 Rev. 2012-11-15 *MG34U222*...

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