Rockwell-automation MD65 User Manual Version 2.0 Manual de usuario Pagina 165

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StepLogicTM, Basic Logic and Timer/Counter Functions
H-5
Digital In1 Sel (A051) = 4 “Preset Freq”
Digital In2 Sel (A052) = 18 “Timer Start
Relay Out Sel (A055) = 16 “Timer Out”
Relay Out Level (A056) = 20.0 Sec
Preset Freq 1 (A071) = 30.0 Hz
The control terminal block is wired such that a start command
will also trigger the timer start.
The relay output is wired to I/O Terminal 05 (Digital Input 1) so
that it forces the input on when the timer starts.
After the timer is complete, the output is turned off releasing the
preset speed command. The drive defaults to following the
analog input reference as programmed.
Note that a “Reset Timer” input is not required for this example
since the “Timer Start” input both clears and starts the timer.
Di
g
ital In
2
Reset
C
ounte
r
Limit
S
witc
h
Di
g
ital In
1
C
ounter I
n
Photo E
ye
S
tar
t
Out
p
u
t
Frequenc
y
Rela
y
Ou
t
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