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20
Wiring
Section 3-2
4.
Wire the same lengths to A, B, and b so that the impedance will be the
same. In particular, do not short circuit between B and b at the terminal
block.
5.
Always ground the GR terminal on the Power Supply Unit of the PLC.
6.
If the input device uses a voltage generator, temperature compensator, or
similar device, ground the input device if it has a ground terminal.
7.
The cold junction compensators are individually calibrated for each Unit
and each input circuit. If the terminal block from a different Unit is used,
temperature measurements will not be accurate. Always use the terminal
block that is delivered with the Unit.
Wiring a Screw Terminal Block (CJ1W-AD04U)
• Crimp-type terminals must be used for terminal connections, and the
screws must be tightened securely. Use M3 screws and tighten them to a
torque of 0.5 N·m.
• Do not make any connections to the N.C. terminals.
• Recommended crimp terminals
Terminal Block Arrangement
M3 screw
6.0 mm max.
Fork type
Round type
6.0 mm max.
Row
B
Terminal block lock lever
B1
A1
B9
A9
Terminal block cover
NC
B1
NC
B2
NC
B3
Input 2 V+
B4
Input 2
−
B5
Input 2 I+
B6
Input 4 V+
B7
Input 4
−
B8
Input 4 I+
B9
A1
NC
A2
NC
A3
NC
A4
Input 1 V+
A5
Input 1
−
A6
Input 1 I+
A7
Input 3 V+
A8
Input 3
−
A9
Input 3 I+
Row
A
Use crimp terminals
on the input lines.
Summary of Contents for SYSMAC CJ1W-AD04U
Page 3: ...iv...
Page 5: ...vi...
Page 9: ...x...
Page 13: ...xiv...
Page 61: ...42 Expansion Setting Area Section 4 3...
Page 69: ...50 Dimensions Appendix A...