4 Wiring
This chapter describes how to connect load cells and power sources.
4.1 Precautions for wiring
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Connect wires with the device power of.
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Do not connect the AC power supply until all installation and wire connections are
complete. The device has no ON/OFF switch for power supply.
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Do not drop the device or subject it to impacts because the terminal block of the rear
panel is made by resin.
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Install and use the attached acrylic cover for the terminal boards.
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The tightening torque for screws on the terminal board are given in the table below.
Terminal board
Tightening torque for screws
Power supply
Load cell
0.6 Nm
Applicable solderless terminals are as follows.
Terminal board
Solderless termi-
nal width
Applicable solderless terminal
(Oki)
Power supply
Load cell
6.2 mm or less
O type 1.25-3 or Y type 1.25-3.5
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Please separate cables connected with the device as much as possible from noise
sources such dynamic power lines and control I/O.
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Use dedicated conduit wiring. Do not share it with other lines.
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Use a D-class single grounding. Avoid sharing it with other power supply groundings.
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Use shielded cable for connection with external control I/O, and connect the shield
with the F.G terminal of the power supply terminals.
4.2 Connection with load cells
The CSD-903 needs to be connected to a load cell to facilitate weighing.
Examples of CSD-903 connected with load cells are given below.
Note:
When a tension or tension/compression load cell is used in the direction of the tension
and the + direction is displayed, connect the load cell input + to terminal B and the load
cell input – to terminal D, respectively.
4 Wiring
Weight indicator CSD-903
Minebea Intec
EN-21
Summary of Contents for CSD-903
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