Toshiba lf516 Manual De Usuario

 
 

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6 F 8 A 0 9 3 4  

The terminal board connections of LF516/LF546 Flowmeter are shown in Figure 5.1. Proceed with wiring 
as described in Section 5.4, “Wiring Procedure.” 

 

 

* Use a heavy copper braid or wire (cross-sectional area 5.5 mm

 minimum) to ground the terminal 

and make it as short as possible as shown in Figure 5.1 for grounding. 
Also,  Avoid a common ground where earth current may flow. (An independent ground is 
preferable.) 

* The converter has no power switch. Install the power switch at the system side. Be sure to use a 

Power supply 

Wiring breaker 

(double-pole/single-throw) 

Output signal cable 

(CVV-S) 

Current output 

(4-20mAdc) 

or PROFIBUS 

NOTE: 

To avoid 2-point grounding, 

ground the shield of the output 

cable basically at the receiving 

side. 

Digital output 1 
Common for DI/DO 

(100 ohm or less 

ground resistance) 

Digital output 2 

Digital input 

(20 to 30 Vdc) 

Power cable (CVV) 

* For a 2-core cable, L1 and 

L2 only. 

IV wire 

5.5mm

2

 or more 

Ground terminal 

(100 ohm or less 

ground resistance) 

Converter unit 

(100 ohm or less ground 

resistance) 

NOTE: 

• When 3-core power cabel is used, do 

not ground from the    external 

grounding terminal.(Perform grouding 

at the receving side only). 

• Only when a 2-core power cable is 

used, perform grounding from the 

external grounding terminal. 

[Instrumentation panel: Customer] 

(Receiving side)