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Type
6-wire
connection
(recommended)
4-wire
connection
Precautions to be taken when using the 4-wire connection:
If the 4-wire connection has to be used, please take the following measures.
Be sure to connect terminals EXC+(6) and SEN+( 5 ) and terminals SEN-(4) and EXC-(3).
When lengthening the load cell cable, try to use cable with a large cross-sectional area.
Also, keep the cable as short as possible.
4.6.
Verifying Loadcell Cable
When the load cell connection is complete, perform a connection check using the following
procedure.
Perform a visual check to ensure that the wiring is correct.
Turn the module on.
When calibration has not yet been carried out, the display value may be blank. However, as
long as there are no problems with the display, confirmation can still be carried out using
check mode.
Enter the check mode and check the load cell output value.
Refer to "7.3.Check Mode" to enter the A/D check mode.
Confirm that the displayed load cell output value matches the specified value. Normally the
displayed value will be the load cell rated output value or less.
If an error occurs, refer to "7.2. Verifying The Loadcell Connections ( DIAGNOS )" or "7.5.
Verifying The Loadcell Connections Using Multimeter".
Advantages
The error is small even
when the load cell cable
is extended, a thin load
cell cable is used, or
multiple load cells are
used.
Simple wiring
Disadvantages
Complicated wiring
The influence of the load
cell cable resistance
worsens the
temperature coefficient.
Prone to the influence of
the contact resistance of
the connector
- 12 -
Description
Use a 6-wire shielded
cable when a summing
box is used.
The error increases
when the load cell cable
is extended or multiple
load cells are used.
AD-4430B
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