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External Connections
Combined type Converter LF620
Instrument panel : Ordered separately
Grounding with 100Ω or less
ground resistance
Power switch
(External double-pole power switch)
Current output (4～20mAdc)
or PROFIBUS
or Modbus
Signal common for DI and DO
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
Power supply
Digital input
(20～30Vdc)
Digital output 2
Digital output 1
I/O cable
Figure 3. Combined type LF620 and LF620F
converters Wiring Diagram
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.
Power cable
TIC-LF620E
2
Ⅳ wire 5.5mm
or more
Grounding with 100Ω or less
ground resistance
5
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