Danfoss VLT FC 103 Instruction Manual
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Danfoss VLT FC 103 Instruction Manual

Refrigeration drive
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MAKING MODERN LIVING POSSIBLE
Instruction Manual
®
VLT
Refrigeration Drive FC 103, 75–400 kW

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Summary of Contents for Danfoss VLT FC 103

  • Page 1 MAKING MODERN LIVING POSSIBLE Instruction Manual ® Refrigeration Drive FC 103, 75–400 kW...
  • Page 3 The wait time required is listed in the Discharge Time table. Failure to wait for the specified period of time after power has been removed to do service or repair could result in death or serious injury. ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 4 ® Safety Refrigeration Drive Instruction Manual ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 5: Table Of Contents

    2.5.3 Grounding of Shielded Control Cables 3-13 2.5.4 Control Terminal Types 3-14 2.5.5 Wiring to Control Terminals 3-15 2.5.6 Control Terminal Functions 3-15 2.6 Serial Communication 3-16 2.7 Optional Equipment 3-16 ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 6 5.1 Introduction 5.2 Programming Example 5.3 Control Terminal Programming Examples 5.4 International/North American Default Parameter Settings 5.5 Parameter Menu Structure 5.5.1 Main Menu Structure 5.6 Remote Programming with MCT 10 Set-up Software ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 7 10.2 General Technical Data 11-4 10.3 Fuse Tables 11-9 10.3.1 Protection 11-9 10.3.2 Fuse Selection 11-9 10.3.3 Short Circuit Current Rating (SCCR) 11-10 10.3.4 Connection Tightening Torques 11-10 12 Index 12-1 ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 8 ® Contents Refrigeration Drive Instruction Manual ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 9: Introduction

    Analog switches (A53), (A54) 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 ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 10: Purpose Of The Manual

    Optional equipment is available that may change some of the procedures described. Reference the instructions supplied with those options for specific requirements. Contact the local Danfoss supplier or visit the Danfoss website: www.danfoss.com/BusinessAreas/DrivesSolutions/ Figure 1.3 Adjustable Frequency Drive Block Diagram Documentations/VLT+Technical+Documen- tation.htm, for downloads or additional...
  • Page 11 • User interface and external commands are monitored and performed • Status output and control can be provided Table 1.2 Legend to Figure 1.3 ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 12: Frame Sizes And Power Ratings

    Normal Overload [kW] 400 V 480 V 525 V 690 V Table 1.3 kW Rated Adjustable Frequency Drives Normal Overload [HP] 460 V 575 V Table 1.4 HP Rated Adjustable Frequency Drives ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 13: Installation

    Voltage [V] Altitude restrictions correctly. 380–500 At altitudes above 10,000 ft [3 km], contact Danfoss regarding PELV Voltage [V] Altitude restrictions 525–690 At altitudes above 6,600 ft [2 km], contact Danfoss 380–480...

  • Page 14: Pre-Installation Check List

    90% of the heat out of the back channel of the adjustable frequency drives. The backchannel air can be redirected from the panel or room using one of the kits below. ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 15: Lifting

    Failure to isolate power, motor and control wiring could result in less than Figure 2.1 Recommended Lifting Method optimum adjustable frequency drive and associated equipment performance. ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 16 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 ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 17 Figure 2.4. If not factory supplied, Figure 2.3 Example of Proper Electrical Installation Using Conduit fuses must be provided by the installer as part of the installation. See maximum fuse ratings in 10.3.1 Protection. ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 18: Grounding Requirements

    A fault current • Danfoss recommends that all power connections in the adjustable frequency drive at the output power be made with a minimum 167°F [75°C] rated terminals might contain a DC component, which can copper wire.

  • Page 19: Grounding Ip20 Enclosures

    Figure 2.5. in Figure 2.6. Figure 2.5 Grounding Points for IP20 (Chassis) Enclosures Figure 2.6 Grounding for IP21/54 Enclosures. ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 20: Motor Connection

    IP21/54 and higher (NEMA1/12) units 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 ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 21 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 or Regeneration Terminals, D3h Front view Side view Table 2.4 ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 22 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 MG16J122 - VLT is a registered Danfoss trademark...

  • Page 23: Motor Cable

    96, 97, 98, 99 Line power U/T1, V/T2, W/T3 Ground Table 2.6 Table 2.7 A motor rotation check can be performed using1-28 Motor Rotation Check and following the steps shown in the display. ® MG16J122 - VLT is a registered Danfoss trademark 2-11...

  • Page 24: Ac Line Input Connections

    LCP on the inside of the adjustable frequency drive. To access, open the door (IP21/54) or remove the front panel (IP20). Figure 2.13 Connecting to AC Line Power AC line input connections Motor connection Table 2.8 ® 2-12 MG16J122 - VLT is a registered Danfoss trademark...

  • Page 25: Using Shielded Control Cables

    If the ground potential between This is the typical Danfoss reference cable. the adjustable frequency drive and the PLC is different, electric noise may occur that will disturb the entire system.

  • Page 26: Control Terminal Types

    Also provided are two Form C relay outputs that are located on the power card. Table 2.11 • Some options available for ordering with the unit may provide additional terminals. See the manual provided with the equipment option. ® 2-14 MG16J122 - VLT is a registered Danfoss trademark...

  • Page 27: Wiring To Control Terminals

    Set switches A53 and A54 to select the signal type. U selects voltage, I selects current • The switches are accessible when the LCP has been removed (see Figure 2.21). ® MG16J122 - VLT is a registered Danfoss trademark 2-15...

  • Page 28: Serial Communication

    The heater is controlled by customer-supplied 230 V AC. For best results, operate the heater only when the unit is not running and turn the heater off when the unit is running. ® 2-16 MG16J122 - VLT is a registered Danfoss trademark...

  • Page 29: Brake Chopper

    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. ® MG16J122 - VLT is a registered Danfoss trademark 2-17...
  • Page 30 ® Installation Refrigeration Drive Instruction Manual ® 2-18 MG16J122 - VLT is a registered Danfoss trademark...

  • Page 31: Start-Up And Functional Testing

    These values are needed to program motor nameplate data later. Confirm that the supply voltage matches voltage of adjustable frequency drive and motor. ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 32 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 Start-up Check List ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 33: Applying Power

    [Back]. The Application Guide can be re-entered through the Quick Menu. When re-entering the Application Guide, the user will be asked to keep previous changes to the factory set-up or to restore default values. ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 34 Numbering of steps in the wizard (e.g., 1/12) can change depending on workflow choices. This screen will automatically change to the first input screen of the Application Guide: Figure 3.6 Figure 3.3 ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 35 0–10 V, 4–20 mA or FC 103 Lon. The adjustable frequency drive will change its speed depending upon this reference signal. Select sensor type Figure 3.8 Choose with/without bypass valve Figure 3.11 Figure 3.9 ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 36 Figure 3.15 Figure 3.12 Select fixed or floating setpoint Info: 4–20 mA feedback chosen - connect accordingly Figure 3.16 Figure 3.13 Set setpoint Info: Set switch accordingly Figure 3.17 Figure 3.14 ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 37 Set number of compressors in pack Figure 3.21 Figure 3.18 Info: Connect accordingly Set cut-out/in value Figure 3.22 Info: Set-up completed Figure 3.19 Choose pack control set-up Figure 3.23 Figure 3.20 ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 38 2 - ** Brakes When re-entering the Application Guide, select between 3 - ** Reference / Ramps previous changes to the factory set-up or restore default values. Figure 3.26 Main Menu ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 39: Automatic Motor Adaptation

    Otherwise select No Operation. For Basic Settings Set-up Opperations adjustable frequency drives with an optional LCP Display Danfoss bypass, no jumper wire is required. LCP Custom Readout 3-02 Minimum Reference 3-03 Maximum Reference Figure 3.27 Operation/Display 3-41 Ramp 1 Ramp-up Time 3-42 Ramp 1 Ramp-down Time 3-13 Reference Site.

  • Page 40: Check Motor Rotation

    Reverse the connection of any two of the three • Increase torque limit in 4-16 Torque Limit Motor motor cables on the motor or adjustable frequency drive Mode side of the connection. ® 3-10 MG16J122 - VLT is a registered Danfoss trademark...

  • Page 41: System Start-Up

    Apply an external run command. Adjust the speed reference throughout the speed range. Remove the external run command. Note any problems. If warnings or alarms occur, see 8 Warnings and Alarms. ® MG16J122 - VLT is a registered Danfoss trademark 3-11...
  • Page 42 ® Start-up and Functional Tes... Refrigeration Drive Instruction Manual ® 3-12 MG16J122 - VLT is a registered Danfoss trademark...

  • Page 43: 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. ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 44: Setting Lcp Display Values

    • For details about the adjustable frequency drive before it entered the alarm mode, select the alarm number using the navigation keys and press [OK]. Table 4.2 Function Description Menu Keys ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 45: Navigation Keys

    ALARM A fault condition causes the red data stored in the LCP memory. alarm light to flash and an alarm text is displayed. Table 4.4 Indicator Lights Functions ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 46: Uploading Data To The Lcp

    Restoring the adjustable frequency drive parameter • 15-05 Over Volts settings back to default values is done by initialization of the adjustable frequency drive. Initialization can be through 14-22 Operation Mode or manually. ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 47: Programming

    6–60 Hz output to the motor propor- 14.7% 0.00A 1(1) tional to the input signal (0–10 V DC = 6–60 Hz) Analog Reference Q3-21 3-03 Maximum Reference 50.000 Hz Figure 5.3 ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 48 Q3-21 6 - 14 Terminal 53 Low Ref./Feedb. Value Figure 5.8 Wiring Example for External Device Providing 0–10 V Control Signal (Adjustable Frequency Drive Left, External Device 000020.000 Right) Figure 5.6 ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 49: Control Terminal Programming Examples

    5-5* Pulse Input See Note 4 Figure 5.10 4-19 Max Output 100 Hz 120 Hz Frequency 4-53 Warning Speed 1500 RPM 1800 RPM High 5-12 Terminal 27 Coast inverse External interlock Digital Input ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 50: Parameter Menu Structure

    Q5-1 Last 10 Changes provided in 6 Application Examples for the most recent. 25.9% 0.00A 1(1) Changes Made Q5-1 Last 10 Changes Q5-2 Since Factory Setti... Figure 5.12 Changes Made ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 51 ® Programming Refrigeration Drive Instruction Manual ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 52 ® Programming Refrigeration Drive Instruction Manual ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 53 ® Programming Refrigeration Drive Instruction Manual ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 54: Remote Programming With Mct 10 Set-Up Software

    Refrigeration Drive 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 55: Application Examples

    * = Default Value A IN A IN Notes/comments: A IN A OUT A OUT -10 - +10V U - I Table 6.1 AMA with T27 Connected Table 6.3 Analog Speed Reference (Voltage) ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 56 27 is A IN not needed. A IN A OUT Latched Start (18) Stop Inverse (27) Figure 6.2 Latched Start/Stop Inverse Table 6.5 Start/Stop Command with Safe Stop ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 57 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 ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 58 D IN +10 V A IN A IN A OUT RS-485 Table 6.11 RS-485 Network Connection CAUTION Thermistors must use reinforced or double insulation to meet PELV insulation requirements. ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 59: 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 ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 60 Ramping The motor is accelerating/decelerating using permissive signal is received. the active ramp-up/down. The reference, a limit value or a standstill is not yet reached. ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 61 The adjustable frequency drive can then be reset manually by pressing [Reset] or remotely by control terminals or serial communication. Table 7.3 Operation Status ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 62 ® Status Messages Refrigeration Drive Instruction Manual ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 63: Warnings And Alarms

    Auto Remote Trip A trip can be reset in any of four ways: Figure 8.2 • Press [Reset] • Digital reset input command • Serial communication reset input command • Auto reset ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 64 Warn. Alarm Hand Auto Off Reset Figure 8.3 Warn. LED Alarm LED Warning Alarm ON (Flashing) Trip Lock ON (Flashing) Table 8.1 ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 65: Warning And Alarm Definitions

    5-00 Digital I/O Mode, 5-02 Terminal 29 Mode Overload of Digital Output On X30/6 5-32 Term X30/6 Digi Out (MCB 101) Overload of Digital Output On X30/7 5-33 Term X30/7 Digi Out (MCB 101) ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 66 Safe Stop Auto Restart Power Unit Set-up Reduced Power Mode Illegal PS config Drive Initialized to Default Value Analog input 54 wrong settings No-Flow 22-2* No-Flow Detection Table 8.2 Alarm/Warning Code List ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 67 Heatsink sensor Pwr.card supply Pwr.card temp Illegal PS config New spare parts New Type Code Table 8.3 Alarm/Warning Code List (X) Dependent on parameter Cannot be Auto reset via 14-20 Reset Mode ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 68: Fault Messages

    The limit is dependent on the running below the adjustable frequency drive adjustable frequency drive voltage rating. The unit is still continuous current rating, the counter should active. decrease. ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 69 Motor Mode or the value in 4-17 Torque Limit Generator Mode. 14-25 Trip Delay at Torque Limit can change this from a warning only condition to a warning followed by an alarm. ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 70 WARNING 24, External fan fault The fan warning function is an extra protective function that checks if the fan is running/mounted. The fan warning can be disabled in 14-53 Fan Monitor ([0] Disabled). ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 71 • Check for loose or missing wiring • Incorrect airflow clearance above and below the It may be necessary to contact the Danfoss supplier or adjustable frequency drive service department. Note the code number for further • Blocked airflow around the adjustable frequency troubleshooting directions.
  • Page 72 The 24 V DC is measured on the control card. The external 2821 Serial port overflow 24 V DC backup power supply may be overloaded, 2822 USB port overflow otherwise contact the Danfoss supplier. 2836 cfListMempool too small WARNING 48, 1.8 V supply low 3072-5122 Parameter value is outside its limits The 1.8 V DC supply used on the control card is outside of...
  • Page 73 Refrigeration Drive Instruction Manual ALARM 50, AMA calibration failed WARNING 66, Heatsink temperature low Contact the Danfoss supplier or Danfoss Service The adjustable frequency drive is too cold to operate. This Department. warning is based on the temperature sensor in the IGBT module.
  • Page 74 Reset the adjustable frequency drive for normal operation. WARNING 251, New type code The power card or other components have been replaced and the type code changed. Reset to remove the warning and resume normal operation. ® 8-12 MG16J122 - VLT is a registered Danfoss trademark...

  • Page 75: 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. ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 76 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. ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 77 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 Troubleshooting ® MG16J122 - VLT is a registered Danfoss trademark...
  • Page 78 ® Basic Troubleshooting Refrigeration Drive Instruction Manual ® MG16J122 - VLT is a registered Danfoss trademark...

  • Page 79: Specifications

    Weight, enclosure IP20 lbs [kg] 135 [62] 275 [125] Efficiency 0.98 Output frequency 0–590 Hz *Normal overload=110% current for 60 s Table 10.1 Line Power Supply 3 x 380–480 V AC ® MG16J122 - VLT is a registered Danfoss trademark 10-1...
  • Page 80 Output frequency 0–590 Hz Heatsink overtemp. trip 230°F [110°C] Power card ambient trip 167°F [75°C] *Normal overload=110% current for 60 s Table 10.2 Line Power Supply 3 x 525–690 V AC ® 10-2 MG16J122 - VLT is a registered Danfoss trademark...
  • Page 81 D1h ratings+disconnect and/or brake chopper 255 [116] D1h ratings+contactor and/or circuit breaker 285 [129] D2h ratings+disconnect and/or brake chopper 440 [200] D2h ratings+contactor and/or circuit breaker 496 [225] Table 10.4 D5h–D8h Weights ® MG16J122 - VLT is a registered Danfoss trademark 10-3...

  • Page 82: 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. Terminals 27 and 29 can also be programmed as output. ® 10-4 MG16J122 - VLT is a registered Danfoss trademark...
  • Page 83 Accuracy on analog output Max. error: 0.8% of full scale Resolution on analog output 8 bit The analog output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. ® MG16J122 - VLT is a registered Danfoss trademark 10-5...
  • Page 84 III/pollution degree 2 IEC 60947 t 4 and 5 The relay contacts are galvanically isolated from the rest of the circuit by reinforced isolation (PELV). Overvoltage Category II ® 10-6 MG16J122 - VLT is a registered Danfoss trademark...
  • Page 85 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. ® MG16J122 - VLT is a registered Danfoss trademark 10-7...
  • Page 86 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. ® 10-8 MG16J122 - VLT is a registered Danfoss trademark...

  • Page 87: Fuse Tables

    10.3.2 Fuse Selection Short-circuit Protection The adjustable frequency drive must be protected against Danfoss recommends using the following fuses which will short-circuit to avoid electrical or fire hazard. Danfoss ensure compliance with EN50178. In case of malfunction, recommends using the fuses mentioned below to protect...

  • Page 88: Short Circuit Current Rating (Sccr)

    Regen Ground 8.5–20.5 Nm Brake (75–181 in-lbs) D2h/D4h/D7h/ Line power Motor 19–40 Nm Regen (168–354 in- Load sharing lbs) Ground Brake 8.5–20.5 Nm (75–181 in-lbs) Table 10.8 Torque for Terminals ® 10-10 MG16J122 - VLT is a registered Danfoss trademark...

  • Page 89: Index

    Circuit Breakers..................3-2 Noise....................2-6 Closed-loop..................2-15 EMC..................2-14, 3-2, 10-7 Communication Option..............8-9 Equalizing Cable................2-13 Conduit................... 2-5, 3-2 External Commands................1-3, 7-1 Controllers..................1-2 Interlock..................... 5-4 Voltage....................5-2 ® MG16J122 - VLT is a registered Danfoss trademark 12-1...
  • Page 90 Terminals................ 2-15, 3-1, 8-6 Voltage..................3-3, 8-1 Installation Installation............... 1-2, 2-5, 3-2, 3-3 Open-loop................ 2-15, 5-1, 10-7 Site....................... 2-1 Operation Keys..................4-3 Isolated Line Power................2-12 Optional Equipment..............3-3, 1-2 ® 12-2 MG16J122 - VLT is a registered Danfoss trademark...
  • Page 91 Restoring Default Settings............... 4-4 RFI Filter....................2-12 RMS Current..................1-3 Uploading Data To The LCP............4-4 RS-485....................2-16 Using Shielded Control Cables............ 2-13 Command..................3-11 Permissive..................7-1 Voltage Imbalance................8-6 Safety Inspection................. 3-1 ® MG16J122 - VLT is a registered Danfoss trademark 12-3...
  • Page 92 ® Index Refrigeration Drive Instruction Manual Warning And Alarm Definitions............. 8-3 Wire Type And Ratings..............2-6 Wiring To Control Terminals............2-15 ® 12-4 MG16J122 - VLT is a registered Danfoss trademark...
  • Page 93 ® Index Refrigeration Drive Instruction Manual ® MG16J122 - VLT is a registered Danfoss trademark 12-5...
  • Page 94 130R0414 MG16J122 Rev. 2013-04-22 *MG16J122*...

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