19 -
20
19. LOADING AND INSTALLATION
(2) Wiring I/O equipment
(a) The applicable wire size for a terminal block connector is 0.75 to 2mm
2
. It is
recommended to use wire of 0.75mm
2
for easy use.
(b) Run the input line and output line away from each other.
(c) Separate the I/O signal lines (including common line) at least 100mm (3.94inch)
away from the main circuit line carrying high voltage and large current.
(d) If it is not possible, use a batch shielding cable and ground it on the PLC side.
However, ground it on the opposite side in some cases.
(e) When ducts are used for wiring, securely ground them.
(f) Separate the 24VDC I/O cables from the 100VAC and 200VAC cables.
(g) In a long distance wiring of 200m (656.2ft.) or longer, leak current due to
capacitance may cause failure.
(h) As protective measures against lightning surges, separate the AC wiring from
the DC wiring and connect a lightning surge absorber as shown in (1) (i).
Failure to do so increases the risk of I/O equipment failure due to lightning.
POINT
(1) Ground the lightning surge absorber (E1) and the PLC (E2) separately from
each other.
(2) Select a lightning surge absorber whose voltage does not exceed the
maximum allowable circuit voltage even when line voltage reaches the
maximum.
CAUTION
Do not install the control lines or communication cables together with the main
circuit or power lines, or bring them close to each other.
Keep a distance of 100mm (3.94inch) or more between them.
Failure to do so may cause malfunctions due to noise.
PLC
Input
Output
DC
Shielded cable
Shielded
sheath
RA
Summary of Contents for Q2ACPU
Page 1: ......
Page 2: ......
Page 221: ...12 12 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU ...
Page 222: ...12 13 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU ...
Page 237: ...12 28 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU MEMO ...
Page 271: ...16 13 16 POWER SUPPLY MODULE 4 Names and description of parts of the A66P ...
Page 343: ...21 21 13 MAINTENANCE AND INSPECTION 21 4 2 Replacement of the fuse for an output module ...
Page 357: ...22 12 22 TROUBLESHOOTING ...
Page 359: ...22 14 22 TROUBLESHOOTING MEMO ...
Page 429: ...App 32 APPENDICES Trigonometric function Classification Symbol Description ...
Page 537: ...App 140 APPENDICES REMARK 1 Message 1 An error code is displayed in 2 Alert 1 3 Alert 2 ...
Page 539: ...App 142 APPENDICES 2 Q2ACPU Q2ACPU S1 modules Unit mm inch ...
Page 541: ...App 144 APPENDICES 2 A66P power supply module Unit mm inch ...
Page 543: ...App 146 APPENDICES 3 A35B base unit 4 A38B A38HB A38HBEU base unit Unit mm inch Unit mm inch ...
Page 567: ...MEMO ...
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