Toshiba TIC-LF494B manual Separate type LF490/LF612 and LF494/LF612F flowmeters

TIC-LF494B

Separate type LF490/LF612 and LF494/LF612F flowmeters

Terminal board

Thick walled steel conduit

Signal cable

(2-wire shielded hard-rubber sheathed cable)

Connected detector

Excitation cable (3-wire shielded hard-rubber cable)

IV wire

5.5 mm2 or more

Grounded with 100Ω or less ground resistance

Power switch

(External double-pole power switch )

[Instrument panel : ordered separately]

Grounded with 100Ω or less ground resistance

Power supply

Current output (4~20mAdc) or PROFIBUS

Digital output 1

Signal common for DI and DO

Digital output 2

Digital input (20~30Vdc)

Power cable	Digital input cable	Grounded with 100Ω or
(CVV)	(CVV-S)
		less ground resistance

Figure 10. Separate type LF490/LF612 and LF494/LF612F flowmeters wiring Diagram

Table 1. LF610, LF610F, LF612 and LF612F Converters Signal Table

Symbol	Description	Cable
L1 (＋)	Power supply	Power cable (CVV)
L2 (－)
GND	Ground (for arrester)
FG	Frame ground
DI	Digital Input (20～30Vdc)
DO1	Digital Output 1
DO2	Digital Output 2	I/O cable (CVV-S)
COM	Signal Common for DI, DO1, DO2
＋
	Current Output (4～20mAdc)
		Shielded cable for
	or PROFIBUS
－		PROFIBUS-PA
X		Excitation cable
Y	Excitation Output
		(for LF612, LF612F only)
E
A		Signal cable
B	Signal Input
		(for LF612, LF612F only)
G

9