Danfoss VLT FC 102 Installation Manual
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Danfoss VLT FC 102 Installation Manual

Danfoss VLT FC 102 Installation Manual

Parallel drive modules 250–1200 kw
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Download this manual See also: Programming Manual, Instruction Manual
ENGINEERING TOMORROW
Installation Guide
®
VLT
Parallel Drive Modules
250–1200 kW
vlt-drives.danfoss.com

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Summary of Contents for Danfoss VLT FC 102

  • Page 1 ENGINEERING TOMORROW Installation Guide ® Parallel Drive Modules 250–1200 kW vlt-drives.danfoss.com...

  • Page 3: Table Of Contents

    5.3 Wiring Diagram 5.4 Fuses 5.5 Electrical Kit Installation 5.6 DC Bus Fuse Installation 5.7 Motor Connections 5.7.3 Motor Terminal Connections 5.7.3.1 Motor Cable 5.7.3.2 Motor Terminal Connections in 2-Drive Module Systems MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 4 7.4 12-Pulse Transformer Specifications 7.5 Ambient Conditions for Drive Modules 7.6 Cable Specifications 7.7 Control Input/Output and Control Data 7.8 Kit Dimensions 7.9 Fastener Tightening Torques 7.9.1 Tightening Torques for Terminals 8 Appendix 8.1 Disclaimer Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 5 Contents Installation Guide 8.2 Symbols, Abbreviations, and Conventions 8.3 Block Diagrams Index MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 6: Introduction

    Collect it separately in accordance with used in creating the drive system. The local and currently valid legislation. programming guide describes in greater detail how to work with parameters and provides application examples. Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 7: Safety

    • Ensure that permanent magnet motors are • Before applying power, ensure that all safety blocked to prevent unintended rotation. covers are in place and securely fastened. MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 8 • Disconnect the frequency converters from the AC mains, 230 V supply, and motor lines. • After the lines have been disconnected, wait 20 minutes for the capacitors to discharge. Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 9: Product Overview

    Other components, such as bus bar kits and back-channel cooling duct kits, are available as options to customize the drive system. NOTICE EXTERNAL 230 V SUPPLY An external 230 V supply is needed to power the SMPS (switch mode power supply) and any cabinet fans. MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 10: Drive Modules

    Motor output terminals (inside the unit) Brake fault jumper and connector Heat sink and heat sink fan Mains input terminals (inside the unit) Ground plate Terminal cover – – Illustration 3.1 Drive Module Overview Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 11: Control Shelf

    SMPS. Top-level drive system label. See Illustration 4.1. Pilz relay 44-pin cables from MDCIC board to drive modules DIN rail Ferrite core Terminal block mounted on DIN rail Illustration 3.2 Control Shelf MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 12: Wire Harness

    NOTICE Use of fuses on the supply side is mandatory for IEC 60364 (CE) compliant installations. DC fuse Microswitch connector Illustration 3.3 DC Fuse and Microswitch Connector Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 13: Mechanical Installation

    Stored charge, wait 20 min. Charge residuelle, attendez 20 Type code Code number Power rating Input voltage, frequency, and current Output voltage, frequency, and current Discharge time Illustration 4.1 Top-level Drive System Label (Example) MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 14: Lifting The Unit

    4.1.3 Storage Store the kit in a dry location. Keep the equipment sealed in its packaging until installation. Refer to chapter 7.5 Ambient Conditions for Drive Modules for recommended ambient conditions. Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 15 Mechanical Installation Installation Guide 65° Illustration 4.3 Lifting the Drive Module MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 16: Requirements

    4.2.3 Busbars 4.2 Requirements This section describes the minimum recommended If the Danfoss busbar kit is not used, see Table 4.2 for the requirements for mechanical installation. For UL and CE cross-section measurements that are required when requirements, see chapter 5.2 Electrical Requirements for creating customized busbars.
  • Page 17 Each drive module contains a heat sink fan and a mixing fan. Typical enclosure designs utilize door fans along with the drive module fans to remove waste heat from the enclosure. Danfoss provides several back-channel cooling kits as options. These kits remove 85% of the waste heat from the enclosure, reducing the need for large door fans.

  • Page 18: Installing The Drive Modules

    Install 2 DC fuses with microswitches onto the tops of the DC-link terminals on each drive module. The microswitches should be installed on the outer side of each terminal. Refer to Illustration 3.1. Secure each fuse with 2 M10 screws and torque the screws. Install the next drive module. Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 19 Mechanical Installation Installation Guide Illustration 4.6 Installation of Bottom Mounting Bolts MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 20: Installing The Control Shelf

    Remove the control shelf assembly from its package. Remove the LCP from the control shelf. Use some type of mounting bracket to install the control shelf. Danfoss does not supply the mounting brackets for the control shelf. For EMC-correct installation, refer to Illustration 4.7.

  • Page 21: Electrical Installation

    Electronic thermal relay (ETR) protection against motor overload is not included in the default setting. To ® program the LCP for this function, refer to the VLT Parallel Drive Modules User Guide. MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 22: Electrical Requirements For Certifications And Approvals

    The drive modules are suitable for use on a provincial codes. To fulfill this requirement, use circuit capable of delivering not more than the UL-classified fuses. 100 kA rms symmetrical amperes at the drive Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 23: Wiring Diagram

    (N RS485) 69 0 V (PNP) 24 V (NPN) (COM RS485) 61 33 (D IN) 0 V (PNP) (PNP) = Source (NPN) = Sink 37 (D IN) - option Illustration 5.1 Wiring Diagram MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 24: Fuses

    2500 A N710 N800 aR-1600 N710 N800 2500 A N800 N1M0 aR-1600 N800 N1M0 2500 A Table 5.2 12-Pulse Drive Systems (380–500 V AC) Table 5.5 6-Pulse Drive Systems (380–500 V AC) Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 25 N900 N1M0 1600 A N1M0 N1M2 1600 A Table 5.8 12-Pulse Drive Systems (525–690 V AC) Any minimum 700 V UL-listed fuse can be used for the 525–690 V AC drive systems. MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 26: Electrical Kit Installation

    Peak voltages up to 2.8 times the mains voltage of the ends, use integrated shield clamps. Refer to ® Parallel Drive Modules drive system can occur in the Illustration 5.2. motor cable. High peak voltages can severely stress the Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 27 Using an analog input and 10 V supply 39 42 53 54 <3.0 k Ω PTC / Thermistor >3.0 k Ω Illustration 5.4 PTC Thermistor Connection - Analog Input with 10 V Supply MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 28: Motor Terminal Connections

    Electrical Installation Parallel Drive Modules NOTICE 5.7.2.2 KTY Sensor Danfoss is not responsible for the failure of any Klixon The frequency converter handles 3 types of KTY sensors: thermal switch. • KTY Sensor 1: 1 kΩ at 100 °C (212 °F). Philips KTY 84-1 is an example.

  • Page 29: Motor Terminal Connections In 2-Drive Module Systems

    Connect the ground wire to the nearest protective earth (ground) terminal. Connect the 3-phase motor wiring to terminals U/96, V/97, and W/98 using M10 screws. Tighten the motor terminals. See chapter 7.9.1 Tightening Torques for Terminals. MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 30: Mains Connections

    Connect the ground wire to the nearest ground terminal. Connect the 3-phase mains wiring to terminals R/91, S/92, and T/93 using M10 screws. Tighten the mains terminals. See chapter 7.9.1 Tightening Torques for Terminals. Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 31: Mains Terminal Connections In 4-Drive Module Systems

    NOTICE 5.8.1.2 Mains Terminal Connections in 4- Drive Module Systems Danfoss is not responsible for any failure or malfunction in the disconnector/contactor switch. Illustration 8.11 shows the bus bar connections for 4-drive systems. If a common terminal design is used, there is 1 set of mains terminals in each cabinet.

  • Page 32: Discharge Resistors

    Table 5.13 Discharge Resistors Recommended for Drive Systems with 525–690 V AC Mains Supply NOTICE Danfoss is not responsible for any failure or malfunction of the resistor, or for any misconnections made by the installer. NOTICE The wire used with the brake resistor should be double-insulated or have reinforced insulation.

  • Page 33: Control Shelf Installation

    To ensure proper EMC protection, verify that the MDCIC plate is properly attached to the control shelf assembly. 5.10 Control Wiring Connections Make sure to use the provided wire pathway when routing the control wires from the bottom of the drive system cabinet to the control terminal. MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 34: Control Cable Routing

    44-pin ribbon cable from MDCIC to drive module 4 Ferrite core Bracket to support ribbon cable 44-pin ribbon cable from MDCIC to drive modules 1 and 2 – – Illustration 5.8 Control Cable Routing for a 4-Drive System Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 35: Control Wiring

    4 programmable digital inputs terminals, 2 extra digital terminals programmable as either input or output, a 24 V DC terminal supply voltage, and a common for optional customer-supplied 24 V DC voltage. Illustration 5.9 Control Terminal Locations MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 36 Table 5.14 Terminal Description Extra terminals: • Two form C relay outputs. Location of the outputs depends on frequency converter configuration. • Terminals on built-in optional equipment. See the manual provided with the equipment option. Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 37: Wiring To Control Terminals

    When factory installed optional equipment is wired to terminal 27, do not remove that wiring. Bus termination switch A54 switch A53 switch Illustration 5.11 Locations of Bus Termination Switch and Switches A53 and A54 MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 38: Rs485 Serial Communication

    1 (the drive module on the far left) to the terminal blocks on the control shelf. NOTICE For reference, drive modules are numbered from left to right. Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 39: Emc Recommendations

    Connect the shield conduit to ground at both used, some emission requirements are not in compliance, ends for motor cables and for control cables. although the immunity requirements are fulfilled. Sometimes, it is not possible to connect the MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 40 Minimum 200 mm between control cables, motor cable, Mains supply and mains cable Motor, 3-phases and protective ground Reinforced protective ground Illustration 5.13 EMC-correct Electrical Installation of a Frequency Converter in Cabinet Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 41 100 MHz Aluminum-clad with copper wire. Twisted copper wire or armored steel wire cable. Single-layer braided copper wire with varying percentage shield coverage (this type of cable is the typical Danfoss reference cable). Double-layer braided copper wire. Twin layer of braided copper wire with a magnetic, shielded/armored intermediate layer.
  • Page 42 100 nF capacitor (keeping leads short). 1 Minimum 16 mm 2 Equalizing cable (4 AWG) 100nF <10 mm Illustration 5.18 Shielding without Using Terminal 61 Illustration 5.16 Avoiding Ground Loops Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 43: Initial Start-Up

    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 6.1 Installation Check List MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 44: Safety Instructions

    For units with a disconnect Confirm that the supply voltage matches the switch, turn the switch to the ON position to voltage of the drive system and the motor. apply power to the drive system. Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 45: Configuring The Drive System

    [12] Software 24–27 [13] Language [14] Options A 29–30 [15] Options B 31–32 [16] Options C0 33–34 [17] Options C1 [18] Options C 36–37 [19] Options D 38–39 Table 6.2 Typecode Index MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 46: Testing The Motor Operation

    Press [Status] to return to the operational display. Press [Hand On]. ▲ Press [ ] to accelerate the motor. ▼ Press [ ] to decelerate the motor. Press [Off]. Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 47: Specifications

    – – 600 V, 1600 A 12-pulse configuration 700 A, 600 V – Table 7.1 FC 102, 380–480 V AC Mains Supply (2-Drive System) 1) If Danfoss bus bar kit is used. MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 48 12-pulse configuration 600 V, 700 A 600 V, 900 A 600 V, 1500 A Table 7.2 FC 102, 380–480 V AC Mains Supply (4-Drive System) 1) If Danfoss bus bar kit is used. Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 49 Regeneration terminals Maximum external mains fuses 700 V, 550 A 700 V, 630 A Table 7.3 FC 102, 525–690 V AC Mains Supply (2-Drive System) 1) If Danfoss bus bar kit is used. MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 50 700 V, 2000 A 12-pulse configuration 700 V, 900 A 700 V, 1500 A Table 7.4 FC 102, 525–690 V AC Mains Supply (4-Drive System) 1) If Danfoss bus bar kit is used. Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 51 600 V, 1600 A 12-pulse configuration 600 V, 700 A 600 V, 900 A Table 7.5 FC 202, 380–480 V AC Mains Supply (2-Drive System) 1) If Danfoss bus bar kit is used. MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 52 600 V, 2500 A 12-pulse configuration 600 V, 900 A 600 V, 1500 A Table 7.6 FC 202, 380–480 V AC Mains Supply (4-Drive System) 1) If Danfoss bus bar kit is used. Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 53 4x70 (2/0) 4x120 (250) Regeneration terminals Maximum external mains fuses 700 V, 550 A Table 7.7 FC 202, 525–690 V AC Mains Supply (2-Drive System) 1) If Danfoss bus bar kit is used. MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 54 4x95 (3/0) 4x120 (250) Regeneration terminals Maximum external mains fuses 700 V, 630 A Table 7.8 FC 202, 525–690 V AC Mains Supply (2-Drive System) 1) If Danfoss bus bar kit is used. Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 55 700 V, 2000 A 12-pulse configuration 700 V, 900 A 700 V, 1500 A Table 7.9 FC 202, 525–690 V AC Mains Supply (4-Drive System) 1) If Danfoss bus bar kit is used. MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 56 600 V, 1600 A 12-pulse configuration 600 V, 700 A 600 V, 900 A Table 7.10 FC 302, 380–500 V AC Mains Supply (2-Drive System) 1) If Danfoss bus bar kit is used. Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 57 600 V, 2500 A 12-pulse configuration 600 V, 900 A 600 V, 1500 A Table 7.11 FC 302, 380–500 V AC Mains Supply (4-Drive System) 1) If Danfoss bus bar kit is used. MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 58 4x70 (2/0) 4x120 (250) Regeneration terminals Maximum external mains fuses 700 V, 550 A Table 7.12 FC 302, 525–690 V AC Mains Supply (2-Drive System) 1) If Danfoss bus bar kit is used. Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 59 4x95 (3/0) 4x120 (250) Regeneration terminals Maximum external mains fuses 700 V, 630 A Table 7.13 FC 302, 525–690 V AC Mains Supply (2-Drive System) 1) If Danfoss bus bar kit is used. MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 60 700 V, 2000 A 12-pulse configuration 700 V, 900 A 700 V, 1500 A Table 7.14 FC 302, 525–690 V AC Mains Supply (4-Drive System) 1) If Danfoss bus bar kit is used. Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 61: Mains Supply To Drive Module

    Maximum 135% for s 1) Percentage relates to the nominal torque. Efficiency Efficiency 1) Efficiency measured at nominal current. For energy efficiency class, see . For part load losses, see www.danfoss.com/vltener- gyefficiency. 7.4 12-Pulse Transformer Specifications Connection Dy11 d0 or Dyn 11d0 Phase shift between secondaries 30°...

  • Page 62: Cable Specifications

    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. 2) Except Safe Torque Off input terminal 37. Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 63 Minimum frequency at terminal 29, 33 4 Hz Voltage level 0–24 V DC Maximum voltage on input 28 V DC Input resistance, R Approximately 4 kΩ Pulse input accuracy (0.1–1 kHz) Maximum error: 0.1% of full scale MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 64 240 V AC, 2 A Maximum terminal load (AC-15) on 4–6 (NC) (inductive load @ cosφ 0.4) 240 V AC, 0.2 A Maximum terminal load (DC-1) on 4–6 (NC) (resistive load) 50 V DC, 2 A Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 65 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 protective earth. Use only an isolated laptop as PC connection to the USB connector on the frequency converter. MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 66: Kit Dimensions

    Module weight [kg (lb)] Length x width x depth [mm (in)] Drive module 125 (275) 1121.7 x 346.2 x 375 (44.2 x 13.6 x 14.8) Table 7.15 Drive Module Weight and Dimensions Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 67 Illustration 7.3 Drive Module Terminal Dimensions (Front View) Section A-A Section B-B Mains Terminals Motor and Brake Terminals Brake terminal Mains terminal Motor terminal Illustration 7.4 Drive Module Terminal Dimensions (Side Views) MG37K302 Danfoss A/S © 08/2017 All rights reserved.

  • Page 68: Fastener Tightening Torques

    For fastening terminals, use the torque values in Table 7.17. Mains Motor Regen Load sharing Ground Brake Bolt size Torque [N · m 8.5–20.5 19–40 (168–354) 19–40 (168–354) 19–40 (168–354) 19–40 (168–354) 8.5–20.5 (75–181) (in-lb)] (75–181) Table 7.17 Tightening of Terminals Danfoss A/S © 08/2017 All rights reserved. MG37K302...

  • Page 69: Appendix

    Installation Guide 8 Appendix 8.1 Disclaimer Conventions Numbered lists indicate procedures. Danfoss shall have no obligation with respect to any Bullet lists indicate other information and description of product that illustrations. • is not installed according to the standard configu- Italicized text indicates: ration as specified in the installation guide.
  • Page 70 Drive module 1 Disconnector 1 Drive module 2 Brake fault Supplementary fuses Drive module 3 Mains input bus bars Drive module 4 Brake fault Disconnector 2 Illustration 8.1 Connection of 12-Pulse Disconnector/Interlock Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 71 8.3.2 BRF Connection with 12-Pulse Disconnector/Interlock 8 7 6 11 10 9 MK102 DC+ DC- Auxiliary contact disconnector 1 Klixon switch Auxiliary contact disconnector 2 BRF connector Illustration 8.2 BRF Connection with 12-Pulse Disconnector/Interlock MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 72 ® Appendix Parallel Drive Modules 8.3.3 BRF Jumper Connection 11 10 MK102 BRF jumper (pre-installed) BRF connector Illustration 8.3 BRF Jumper Connection Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 73 Appendix Installation Guide 8.3.4 Connection of Common Brake Resistor Drive module Common brake resistor Brake terminals – – Illustration 8.4 Connection of Common Brake Resistor MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 74 ® Appendix Parallel Drive Modules 8.3.5 Klixon Switch Connection 8 7 6 11 10 9 MK102 DC+ DC- Klixon switch Ferrite core BRF connector – – Illustration 8.5 Klixon Switch Connection Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 75 Current scaling card 44-pin cable to the drive module 2 (at MK 112) STO connector 44-pin cable to the drive module 4 (at MK 114) STO relay Ferrite cores Illustration 8.6 Control Shelf Connections MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 76 R S T U V W R+ R- R S T U V W R+ R- Mains input bus bars Discharge resistor Mains contactor/disconnector auxiliary contacts Discharge contactor Illustration 8.7 Discharge Resistor Connections Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 77 Installation Guide 8.3.8 Connection of Individual Brake Resistor to Each Drive Module Drive module Individual brake resistors Brake terminals – – Illustration 8.8 Connection of Individual Brake Resistor to Each Drive Module MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 78 Motor output bus bars connecting both drive modules Connection to mains Connection to motor output DC-link bus bars connecting both drive modules – – Illustration 8.9 Connections in a 6-Pulse 2-Drive Module System Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 79 Drive module DC terminals Motor output bus bars connecting both drive Connection to brake modules Connection to mains input Connection to motor output Illustration 8.10 Connections in a 12-Pulse 2-Drive Module System MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 80 DC-link bus bars connecting all 4 drive modules – – Illustration 8.11 Connections in a 4-Drive Module System NOTICE DRIVE MODULE WIRING The installer must install an equal number of wires to each set of drive modules. Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 81 Lifting the unit..................12 Disconnect switch................42 Disposal...................... 4 Mains Supply....................59 Electronic thermal relay..............19 Mains terminal..................35 MCT 10 Set-up Software..............33 Electrical installation guidelines..........37 EMC....................... 40 Precautions..................37 MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 82 Safe Torque Off..................36 Safety....................5, 42 Serial communication............7, 33, 34, 40 Shielded twisted pair (STP)............... 36 Short-circuit protection................... 22 Speed reference..................35 STO......................36 Supply voltage................. 33, 34, 42 Switch....................... 35 Symbols....................67 Danfoss A/S © 08/2017 All rights reserved. MG37K302...
  • Page 83 Index Installation Guide MG37K302 Danfoss A/S © 08/2017 All rights reserved.
  • Page 84 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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