Application Note: X320 Check Weighing

Application Note: X320 Check Weighing
Application Note: X320 Check Weighing
Application:
An X320 mounted on a
bench scale is to be used
for a check weighing
application. It is configured
as a 30kg x 0.01kg scale.
There are three grading
zones available (Under,
Pass and Over).
The target weight of the bag is 10kg.
• If the bag is under weight by 0.50kg or more the amber “Under” LED on the front
panel and the amber traffic light will illuminate.
• If the bag is over weight by 0.50kg or more the red “Over” LED on the front panel
and the red traffic light will illuminate.
• Lastly, if the bag is within the range of 9.50kg and 10.50kg the green “Pass” LED
and the green traffic light will illuminate.
The Over and Under weight limits of the check weighing function can be configured in two
ways. It can either be configured in the setup menu or by the operator by holding down the
function key if it is mapped to check weigh.
Components:
X320
X320 Battery/AC
powered
M3013
Hardware Stand for
pole mounting
A10018
Insert for pole
mounting
Traffic light
Third Party Supplied
Operation:
1.Setup
In this example an X320
machine is used to check
the weight of bags.
X300-701-100.doc
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App Note
2. Auto Tare
Place an empty container
on the scale. The indicator
will automatically tare if the
empty container is within
the preset Auto Tare weight
(eg. less than 0.20kg)
3. Filling and check weigh
a. Fill the bag while it is on
the scale. If the weight is
less than 9.50kg (eg 9.35kg
as shown above), the
“Under” LED illuminates on
the front panel.
b. If the weight is between
9.50kg and 10.50kg (eg
10.08kg as shown above),
the “Pass” LED illuminates
on the front panel.
c. If the weight is over
10.50kg (eg 11.21kg as
shown above), the “Over”
LED illuminates on the front
panel.
Configuration:
To enter the setup mode, hold down the Power and Gross/Net key for a few seconds.
FULL SETUP
_BUILD_:
setup as required
_OPTION_:
setup as required
_CAL_:
setup as required
_SPEC
_SAFE.PC:
as required
_FULL.PC:
as required
_KEY.LOC:
as required
_KEY.FN:
if operator target value access is required than set to
_CHECK.W_ else set as required for other available functions.
Refer to manual for list.
_AUT.OFF:
as required
_B.LIGHT:
as required
_REM.FN:
as required
_BAT.VLT:
as required
_W.D.LOCK: as required
_SERIAL_:
setup as required
_CHECK.W
_ENABLE:
ON (must be on for LED’s and outputs to work)
_SRC:
GROSS (can also be set to _DISP_ or _NET_ depending on
requirement)
_OVER:
0010.50 kg (can be altered by operator if _KEY.FN:CHECK.W)
_UNDER:
0009.50 kg (can be altered by operator if _KEY.FN:CHECK.W)
_CLOC_:
setup as required
_TEST_
_FACTRY_
_END_
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App Note
Outputs:
• The output drivers for the indicator are high side drive and are capable of driving up to
400mA each.
• This configuration allows for the direct connection of the indicator outputs to most types
of PLC.
• The voltage applied to the indicator’s positive power supply terminal (+) appears on the
output lines when the outputs are active.
• To drive external loads (eg. relays); connect the output line directly to the positive side
of the relay coil. Connect the negative side of the relay coil to COMMON.
• It is recommended that fly-back diodes or transient suppressors be fitted across
inductive loads such as relay coils to limit switching noise.
Outputs to Drive Relays
Outputs to Drive PLC Inputs
For more information refer to the Reference Manual for this product
X300-701-100.doc
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