A&D AD-4430B Spezifikationen PDF herunterladen (Seite 13)

AD-4430B - 11 -

4.4. Shield Cable

Connect the load cell shield wire only to the shield terminal of the AD-4430B.

As a general rule, No ground is connected between the load cell and the AD-4430B. This is to

prevent the ground loop generated by multiple ground points. A ground loop can be created

along the wiring route, and interference such as high-frequency noise becomes more likely.

4.5. Connecting Loadcell Cable

Shield Cable Connection

As a general rule, only connect the load cell cable's shield wire to the module's shield

terminal. This is because when there are multiple ground points, it becomes easier for noise

to occur as a result of a ground loop. However, when there are higher priorities than noise

prevention, such as explosion prevention systems or static electricity release routes, this rule

does not necessarily need to be followed.

Load Cell Terminal Connections

Two types of load cell connection are available: 6-wire connection and 4-wire connection.

For high precision and stable weighing, 6-wire connection is recommended.

Terminal No. Terminal Name & Function

1 SIG- Load cell input (-)

2 SIG+ Load cell input (+)

3 EXC- Load cell excitation voltage (-)

4 SEN- Sensing input (-)

5 SEN+ Sensing input (+)

6 EXC+ Load cell excitation voltage (+)

7 SHLD Shield

6-wire connection to load cell (recommended)

4-wire connection to load cell (not recommended)

Illustration 5 Load cell connection

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A&D AD-4430B Spezifikationen Seite 13