Lf4(m converter, Toshiba – Toshiba LF494 User Manual
Page 146
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TOSHIBA
6 F , 8 A 0 7 7 , 4
■ LF4(M Converter
Input Nignal
Digital input DI (option)
Signât typeî 20 lo 30 V de voilage signai
Input resistance:
2,7 kQ
Number of inputs: One polni
Output signals
Current output:
4 to 20itiAdc (ioad resistance 0 to 1 kiJ)
Digital outputs — One poim (standard). One more point is optionally available.
Digital output DOl (standard):
Output type:
Transistor open collector
Number of outputs:
One point
Output capacity: 30 V dc» 200 mA maximum
Digital output D02 (option):
Output type:
Solidstate relay (non polarity)
Number of outputs: One point
Output capacity:
50 V dc, 150 mA maximum
Dt function — One of the followin| functions can be assigned for the optional D1 signal.
Range switching — Selects one of two ranges in the 2-range setting or selects either the
higher or lower range in the bidirectional
2
"range setting.
Totalizer control — “Starts and slops" or ‘"Resets and Starts' the totalizer.
Fixed-value outputs — Outputs fixed-values for current output and pulse output.
Zero adjustment — Starts zero adjustment (on-stream at zero flow rate).
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