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TIC-LF654T
9
Figure 7. Separate type converter LF622F
 External Connections
● Combined type LF654/LF620F flowmeters
Grounding with 100Ω or less
ground resistance
Instrument panel : Ordered separately
I/O cable
Ⅳ wire 5.5mm
2
or more
Current output (4～20mAdc)
Power supply
Power cable
Digital input
(20～30Vdc)
Signal common for DI and DO
Digital output 1
Digital output 2
Grounding with 100Ω or less
ground resistance
or Modbus
Power switch
(External double-pole power switch)
NOTE:
In the case of the integral type, the signal line
( A, B, G ) and the 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 shown below:
Switch rating: 250Vac, 6A or more
In rush current: 15A or more
Figure 8. Combined type LF654/LF620F flowmeters Wiring Diagram
Unit : inch(mm)
Weight: Approx. 7 lb (3.5 kg)
Note: Cable glands are not provided for LF622F cFMus approved type.
Refer to the part Cable connection port at detector converter.
Note: 1 inch = 25.4mm
LCD display
Attachment
I/O cable ground
Excitation cable ground
Power supply
cable ground
Option cable ground
Signal cable ground
IR Switch