Cable Connection, －４０－, ６Ｆ８Ａ０８７０

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5.4.2 Cable Connection

Connect and install the terminal-treated cables to the terminal block.

*Connect the cables to the terminal block securely. A loose connection may cause incorrect measurement. After connecting a cable, try to pull it to check whether it has been connected securely.

Referring to combined converter's manuals of "Connections and Grounding", connect each cable to the terminal block. Tighten the screws of the terminal block tightly to ensure a secure connection. A loose connection may cause incorrect measurement. After connecting a cable, try to pull it to see whether it has been connected securely.

Phillips screwdriver

* The appropriate torque for tightening the terminal board screw is 1.2 N.m.

Terminal block

Figure 5.5 Connecting a Cable to Terminal Block

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Image 41

Toshiba LF414 manual Cable Connection, －４０－, ６Ｆ８Ａ０８７０, 5 Connecting a Cable to Terminal Block

Contents

６Ｆ８Ａ０８７０－１－６Ｆ８Ａ０８７０About Safety Precautions Integral type LF414/LF600F, LF414/LF610F, LF414/LF620F Explanation of signal words SAFETY PRECAUTIONSSafety symbols －２－－３－ SAFETY PRECAUTIONS Safety Precautions for Installation and WiringDON’T „ Do not modify or disassemble the enclosure Safety Precautions for Installation and Wiring SAFETY PRECAUTIONS continuedDON’T －４－ Warranty and Limitation of Liability Safety Precautions for Maintenance and InspectionUsage limitation －５－－６－ Handling Precautions・Places where excessive vibration or mechanical shock occurs 2 Wire cables correctly and securely －７－ Handling Precautions continued －８－ Table of Contents 1.1 Product Inspection 1. Product Inspection and Storage1.2 Strage －９－ 2. Overview Features－１０－ 5 Intelligent functions 3.1 Appearance 3. Names of Parts3.1.1 Appearance of LF414/LF600F, LF414/LF610F Integral 1 Meter size of 1/2 inch 15mm －１２－ 2 Meter size of 1inch 25mmFigure 3.1.2 Appearance of LF414/LF600F, LF610F Meter size 1 inch25mm Ground terminal for converter －１３－ 3 Meter size of 1 1/2 to 4 inch 40 to 100mmFigure 3.1.3 Appearance of LF414/LF600F, LF610F Meter size 1 1/2 to 4 inch 40 to 100mm －１４－ 4 Meter size of 6 and 8 inch 150 and 200mmLifting Lugs provided －１５－ 3.1.2 Appearance of LF414/LF620FFigure 3.1.5 Appearance of LF414/LF620F Meter size 1/2inch15mm Ground terminal for converter Flow direction arrow Detector Ground terminal for converter Flow direction arrow －１６－Figure 3.1.6 Appearance of LF414/LF620F Meter size 1 inch25mm Figure 3.1.7 Appearance of LF414/LF620F －１７－ Figure 3.1.8 Appearance of LF414/LF620F －１８－Meter size 6 and 8 inch 150 and 200mm Ground terminal for converter Lifting Lugs Separate 1 Meter size of 1/2 inch 15mm 3.1.3 Appearance of LF414－１９－ Signal cable for Signal cable －２０－Figure 3.1.10 Appearance of LF414 Meter size 1 inch25mm for Excitation cable Signal cable －２１－Figure 3.1.11 Appearance of LF414 Excitation cable Meter size 6 and 8 inch150 and 200mm －２２－Figure 3.1.12 Appearance of LF414 3.2 Construction of the terminal blocks Signal cable terminal3.2.2 Terminal Block Construction of LF414 Type －２３－ Safety Precautions for Installation 4. Installation－２４－ „ Use an appropriate device to carry and install 4.2 Mounting Procedure 4.2.1 Pipe checks 4.1 Notes on Selecting the Installation Location－２５－ 2. Avoid places where excessive pipe vibration occurs Figure 4.3 Model Diagram of Unsupported Pipes －２６－Figure 4.2 Example of Pipe Fixing Procedure Figure 4.4 LF414 flowmeter detector piping connections 4.2.2 Installation Procedure－２７－ Table 4.1 Bolt length and Nut tightening torque －２８－ 1b Optional “Mount Anywhere” Installation Mount-Anywhere Technology 1a Ideal Upstream Straight Pipe Length Installation Requirements4.3 Piping Connections L=5D －３０－ 2 Pipe OrientationFigure 4.6 Installation position of the detector Figure 4.5 Detector Piping Orientation 4 Preventing an Empty Pipe Condition 3 Flow Direction－３１－ Figure 4.7 Flow direction arrow on the detector 1 Grounding of the LF414/LF620F type 4.4 Grounding－３２－ Figure 4.10 Grounding the LF414/LF620F Type －３３－ 2 Grounding of the LF414 type －３４－ 5.WiringSafety Precautions for Wiring －３５－６Ｆ８Ａ０８７０„ Install a switch and fuse to isolate the independently from power equipment. 100 ohm 5.1 Cables Notes on wiring－３６－ Table 5.1 Installation Cables 5.3.2 Notes on Wiring of the Separate type LF414 5.3 Notes on Wiring 5.3.1 Notes on Instrumentation-Converter Wiring5.2 External Device Connections and Grounding －３７－ 1 Power cable, current output cable, digital I/O cables 5.4 Wiring 5.4.1 Terminal Treatment of CablesSeparate 2 Excitation cable －３８－ Notes on signal cable shield processing work 3 Connecting the input signal cable－３９－ Figure 5.3 Terminal Treatment of Flow Rate Signal Cable Figure 5.5 Connecting a Cable to Terminal Block 5.4.2 Cable Connection－４０－ Preparatory check 6. Operation－４１－ „ Check the wiring between the converter and related instruments Safety precaution for Maintenance and Troubleshooting 7. Maintenance and Troubleshooting－４２－ „ Do not conduct wiring work when power is applied „ Cleaning 7.1 MaintenanceCheck/Replacement of the display unit materials 7.2.1 Flow rate is not indicated 7.2 Troubleshooting－４４－ START Are power supplies correct NO for each device? YES －４５－ 7.2.2 Flow rate indicated is not correctPerform the zero adjustment Refer to combined converters manual Clean the inside of the detector pipe －４６－ 7.2.3 Flow rate indication is not stableIs power supply voltage Use a power supply within the specified range Square-Wave Excitation Figure 8.1 Principle of Operation 8. Principle of Operation－４７－ 9.1Specifications 9. Specifications－４８－ Measurement range in terms of flow velocity Figure 9.1 Electrical Conductivity vs. Cable Length －４９－Electrical conductivity μS/cm Table 9.1 Standard Flow Range －５０－ Table 9.2 Flow velocity vs. flow volume －５１－Unit gal/min Unit m3/h 9.2 Type Specification Code Table 9.3 Type Specification Code－５２－ Exciting cable length Nominal cross-sectional area Overall diameter Table 9.4 Type Specification Code Exciting Cable and Signal Cable－５３－ 10.1 Outline dimensions of LF414/LF600F, LF414/LF610F 10. Outline Dimensions1 Meter size of 1/2 inch 15mm 2 Meter size of 1 inch 25mm －５５－ 3 Meter size of 1 1/2 to 8 inch 40 to 200mm Waight approx 9 lb 4kg 10.2 Outline dimensions of LF414/LF620F－５６－－５７－ Waight approx 7 lb 3kg 10.3 Outline dimensions of LF414－５８－－５９－－６０－ Appendix 1-1 A system block diagram for LF414/LF600F, LF414/LF610F －６１－ 1-2 A system block diagram for LF414/LF620F －６２－ 2-1 A system block diagram for LF414 Distributor Address Name －６３－Phone number （ Product code FCF50017

5.4.2 Cable Connection

Figure 5.5 Connecting a Cable to Terminal Block

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