
19 -
18
19. LOADING AND INSTALLATION
(1) Wiring the power supply
(a) When voltage fluctuates outside the specified value range, connect a constant-
voltage transformer.
(b) Use a power supply which generates minimal noise between wires and between
the PLC and ground.
If excessive noise is generated, connect an isolating transformer.
(c) When using a power transformer or an isolating transformer to reduce the
voltage from 200VAC to 100VAC, its capacity must be equal to or greater than
the corresponding value shown in the following table.
(d) Separate the PLC's power supply line from the lines for I/O devices and power
devices as shown below.
When there is much noise, connect an isolating transformer.
(e) Taking rated current or inrush current into consideration when wiring the power
supply, be sure to connect a breaker or an external fuse that have proper blown
and detection.
When using a single PLC, a 10A breaker or an external fuse are recommended
for wiring protection.
Power Supply Module
Transformer Capacity
n: Stands for the number of power supply
modules.
A61P, A61PN
160VA n
A61PEU
130VA n
A62P, A62PEU
155VA n
A65P
110VA
n
A66P
95VA
n
Constant-
voltage
transformer
PLC
I/O
equipment
Insulating transformer
PLC
Insulating transformer
200VAC
T1
Main
power supply
Relay
terminal block
PLC
power supply
Insulation
Transformer
I/O power supply
I/O equipment
On a control panel
Main circuit
power supply
Main circuit equipment
PLC
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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