Appendix 1 Reverse Lookup Of Functions Based On Applications - Toshiba LF620 B Series Instruction Manual

Appendix

Appendix 1 Reverse Lookup of Functions based on Applications

(1) Use the converter for flow applications opposite the direction indicated in the arrow nameplate.
Set the Flow Direction to SWITCH. Refer to 8.2.5 Flow Direction Setting (Function A-4) for more
details
(2) Use a unique unit not built in the converter.
Set the coefficient necessary to compute for the custom unit in the Custom Coefficient, as well as input
the character string in the Custom Unit. Refer to 8.2.7 Custom Coefficient Setting (Function B-2) and
8.2.8 Custom Unit Setting (Function B-3) for more details.
In order to show a value using the custom unit, set either Display 1 or Display 2 to CUSTOM. Refer to
8.2.6 Display Setting (Function B-1, B-2) for more details.
To apply the custom unit to the range, set the range unit to CUSTOM. Refer to 8.2.9 Span (Range)
(Function C) for more details
Refer to 10.10 Custom Unit Function for more details about this function.
(3) Use the range in two levels.
Set the Range Type to 4F-0R. A maximum of 4 levels may be set for flows in the forward direction.
Refer to 8.2.9 Span (Range) (Function C) and 10.3 Multi-range Function for more details.
(4) Measure reverse flows.
Set the Range Type to 2F-2R and set the ranges for both the forward and reverse directions. Refer to
8.2.9 Span (Range) (Function C) and 10.3 Multi-range Function for more details.
To use the totalizer pulse output during reverse flows, please set the Digital Output function to PLS
OUT (for both forward and reverse directions) or PLS REV (for reverse direction only). Refer to 8.2.18
Digital Output (Function H) for more details.
(5) Use multiple ranges and switch the ranges using an external signal.
Set the Range Type to EXT 2F-0R or EXT 2F-2R and set the Digital Input function to RNG SW. Refer
to 8.2.9 Span (Range) (Function C), 8.2.19 Digital Input (Function I) and 10.3 Multi-range Function
for more details.
In addition, to output a signal based on the range currently being used, set the Digital Output function to
RNG SIG1 or RNG SIG2. Refer to 8.2.18 Digital Output (Function H) and 10.3 Multi-range
Function for more details.
(6) Output a signal once the totalized flow reaches a predefined value.
Set the Preset Value to be reached to generate an output signal and set the type of output (either a one
shot pulse or a status). Refer to 8.2.21 Preset Count (Function K-1) and 8.2.22 Preset Mode (Function
K-2) for more details.
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