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100 %
: Choose the value of the process input ("PV") corresponding to 100 % PWM.
INVERT
: Invert the output or not.
PERIOD
: Choose the value of period T2 in seconds.
MIN ON TIME
: Choose the minimum value of T1 in seconds.
Configuring in "PFM" mode
This mode is used to control a dosing pump, for example.
not inverted
output
T2
T1
T2
T2
T2
T2
t
100 %
0 %
T2
T2
T2
T2
T2
T1
t
inverted
output
100 %
0 %
T1 = period, constant
T2 varies
Fig. 89 : "PFM" mode
PV:
Choose the process input associated with the selected output.
0 %
: Choose the value of the process input corresponding to the min. frequency.
100 %
: Choose the value of the process input corresponding to the max. frequency defined in "MAX FREQ."
below.
INVERT
: Invert the output or not.
MAX. FREQ.
: Choose the maximum value of the pulse frequency (1/T2) (180 pulses per minute maximum)
PULSE WIDTH
: Choose the value of the pulse width (T1).
Configuring in "Pulse" mode
This function is available only if the "FLOW" option is activated on the device (see section 8.10.4). It is used to
generate a pulse on the output each time a predetermined volume of fluid passes.
INPUT
: Choose the digital input DI1 or DI2 associated with the output selected.
PULSE: Choose the volume of fluid for which a pulse must be transmitted on the selected output. First enter the
digital value, then confirm by pressing the "OK" dynamic key in order to modify the volume units by pressing
successively on
.
124
Adjustmentandcommissioning
Type 8619
English
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