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6. PROFIBUS Local/Remote Operation
The example below shows how to configure the VF-AS1 for local / remote operation.
<Terminal function>
F terminal ........... RUN command
R terminal........... PROFIBUS/Local (Terminal in this example) switching
RR/S4 terminal.... Operation frequency command
<Wiring>
VF-AS1
F
R
CC
PP
RR/S4
Variable resistor for adjustment
10k ohm
PROFIBUS/Local
Switch
Operation command
SINK
SW1
SOURCE
CCA
<Parameter setting>
cmod (command mode selection) = 0 (terminal board)
fmod (frequency setting mode selection 1) = 2 (RR/S4)
f112 (input terminal selection 2 (R)) = 48 (PROFIBUS/Local control)
<Operation>
R-CC terminal open:
VF-AS1 is controlled as slave device of PROFIBUS.
R-CC terminal closed:
F-CC terminal short to RUN
F-CC terminal open to STOP
Output frequency is set up by the RR/S4 signal input.
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