33
12 - BATCH
Programming Functions
The
12-BATCH
menu is only displayed when
Batch
is
set to
ON
in the
5-INPUTS
menu.
Nsamples=
is the number of batch cycles required to
define the value of compensation for valve closure. This
function is used to automatically determine the average
value for automatic compensation of system delay
(
Interval=h, 9-DATA LOGGER
menu). Set this function
to “
0
” for manual entry of the compensation value.
Diff. thr=%
is the value which defines the percentage of
maximum difference between the value of compensation
set (
V.com=, 12-BATCH menu
) and the value of
compensation set with the function
Interval=h
(
9-DATA
LOGGER
menu). Beyond this threshold the new value
of compensation will be automatically set (if Number of
batch samples is not zero).
V.com=
is the value expressed in the same units of
measure of the selected volume and is the result of the
difference between the batch value setting and the
quantity of product dispensed due to delays in the system:
valve closing times, pump stop times, etc.
NOTE
: If the value of compensation needs to be set
manually, set the number of batch samples to “
0
”
(
Nsamples=, 12-BATCH
menu).
V.pre=
is the volume of liquid at which the pre-batch is
enabled. At this pre-batch volume, the output (if enabled)
is de-energized. This value is a constant for all batch
quantities and is based on the units of measure of volume.
The pre-batch function is useful for fast and accurate
fillings.
Auto batch=
Applying a voltage to the on/off input
terminals for more than 5 seconds, the valve driven from
the meter will open until the voltage is applied on the
input. When the product has reached the desired volume/
level removing voltage from the input: the meter closes
the valve and memorizes the volume of product
dispensed in the current memory batch (see “BATCH
FUNCTIONS”); the value obtained with this procedure
will be the volume of each consecutive batch. To modify
this value, repeat the operations above. This procedure
sets the safety timer to 1.25 times the time employed for
reaching the batch quantity. It will also reset the count of
the number of batches.
BM auto sel=
is the automatic selection of the first 4
formulas act as the duration of the pulse of start of the
batch (see page 12 “Input operation stage”). This function
is active only if it has not enabled the function
Cons.mode
(
12-BATCH
menu). Activating this function also excludes
the automatic compensation of the batch volume (the
value of
Nsamples=, 12-BATCH
menu will be
automatically set to zero). However, manual
compensation is possible introducing parameter
V.com=,
12-BATCH
menu.
Cons.mode=
is the consent mode. This function enables
the start and stop of batching using a constant signal
applied to the input instead of a pulse (see diagram on
page 12). This signal stays
ON
through the entire batch.
This function automatically disables the functions
BM
auto sel=
and
Auto batch
(
12-BATCH
menu).
Batch Function Enable
Enable one of the following functions to enable and
program the batch on the converter:
•
START/STOP
batch from input (
5-INPUTS
menu).
•
Out1
,
Out2
(
6-OUTPUTS
menu): assign one of these
output functions to one of the two inputs.
12-BATCH
Nsamples=
Diff. thr=%
V.com=
V.pre=
Auto batch=
BM auto sel=
Cons.mode=
Summary of Contents for LIQUID CONTROLS HML210
Page 43: ...43 Notes...
