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Toshiba LF620, Руководство пользователя

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Toshiba LF620 Скачать руководство пользователя страница 4

TIC-LF620E 

4

 

 

 

 Installation 

 

Dimension 

 

 

 

 

 

 

 

 

Figure 2. Separate type converter LF622 and LF622F 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: 

Cable glands are not provided for LF622F cFMus approved type. 

         Refer to the part Cable connection port at detector. 

 

LCD display 

Attachment 

I/O cable ground 

Excitation cable ground 

Power supply  

cable ground 

Option cable ground

Signal cable ground

IR Switch 

Plate 

Содержание LF620

Страница 1: ...d LF622 converters Input signals Analog signal the voltage signal from detector proportional to process flow rate For LF622 separate type converter Digital input DI Signal type 20 to 30Vdc voltage signal Input resistance 2 7k Number of inputs one point Note DI cannot be used with the Modbus communication DI function One of the following functions can be assigned to the optional DI signal Range swi...

Страница 2: ...evice Max cable length 1 2km Note Note This length is specification of 3 line connection LCD display Full dot matrix 128 128 dot LCD display back light provided A parameter change will rotate the display Parameter settings Parameters can be set as follows IR Switches Three key switches are provided to set configuration parameters Digital communication HART PROFIBUS or Modbus is needed to set param...

Страница 3: ...10 to 150Hz with acceleration of 9 8m s2 Vibration of 30Hz with 29 4 m s2 in 4h in each direction will not cause any defect to unit Note Avoid using the flowmeter in an environment with constant vibration Converter LF622 dimensions and weights See Figure 2 for Separate type MTBF 220 000 hours at 25 deg C 77 deg F based on MIL HDBK 217F ...

Страница 4: ... and LF622F Note Cable glands are not provided for LF622F cFMus approved type Refer to the part Cable connection port at detector LCD display Attachment I O cable ground Excitation cable ground Power supply cable ground Option cable ground Signal cable ground IR Switch Plate ...

Страница 5: ...th 100Ω or less ground resistance or Modbus Power switch External double pole power switch NOTE In thecase of the integral type the signal line A B G andthe excitation line E X Y are the connector joints Grounding with 100Ω or less ground resistance 1 Locate an external double pole power switch on the power line near the flowmeter within easy reach of operation Use the appropriate switch rating as...

Страница 6: ...lled steel conduit Power switch External double pole power switch Symbol Description Cable L1 Power supply Power cable L2 GND Ground for arrester FG Frame ground DI Digital Input 20 30Vdc I O cable DO1 Digital Output 1 DO2 Digital Output 2 COM Signal Common for DI DO1 DO2 Current Output 4 20mAdc or PROFIBUS Shielded cable for PROFIBUS PA X Excitation cable for LF622 LF622F only Y Excitation Output...

Страница 7: ...ion make sure to use a shielded cable to improve noise resistance Furthermore installation of signal cable in metal conduit is recommended 3 General cables are designed for indoor use where cables are not exposed to humidity rain etc When you install cables make sure to check the operating conditions such as the operating temperature range of the cable by contacting its manufacturer 4 When you car...

Страница 8: ...ote 1 When PROFIBUS communication is provided current output 4 20mA and HART communication cannot be used When Modbus communication is provided digital output points 1 DO1 and digital output points DO2 digital input point 1 DI HART communication cannot be used Refer Table 2 for more details Note2 Select 110Vdc for test report inspected under the condition of 110Vdc Table2 Communication functions a...

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