19.
19 -
10
LOADING AND INSTALLATION
19.4 Installing the Base Units
Precautions on installation of the main base unit and extension base unit are described
here.
19.4.1 Installation precautions
Precautions for installing a PLC to a panel, etc. are explained below.
(1) To allow sufficient air flow and to make module replacement easy, provide a distance
of at least 80mm (3.15inch) between the module top and any other structure or part.
(2) Do not install the PLC vertically or horizontally, because it may affect the ventilation.
(3) If the base unit is installed to the surface which is not flat or is distorted, an excessive
force is applied to the printed-circuit board and it may cause a fault. Be sure to install
it to a flat surface.
(4) Avoid sharing the same panel with any source of vibration such as a large-sized
magnetic contactor or no-fuse breaker
,
and install to a separate panel or away from
such devices.
(5) Provide wiring ducts as necessary.
However, when the clearance from the top or bottom of the PLC is less than that in
Fig. 19.1 and Fig. 19.2, pay attention to the following:
(a) When installing a duct over the PLC, the height of the duct must be 50mm
(1.97inch) or less to allow sufficient air flow.
Place the PLC in the proper position so that the user can press the hook on the
top of the module.
Module replacement is not possible if the hook cannot be pressed.
(b) When placing a duct under the PLC, take into account the use of optical fiber
cables or coaxial cables as well as the minimum bending radius of the cables.
(6) If any device is placed in front of the PLC (when the PLC is installed on the back of
the door), a distance of at least 100mm (3.94inch) must be provided to avoid the
influence of radiated noise and heat.
Also, place the base unit at least 50mm (1.97inch) away from any other equipment
on the right or left.
Содержание Q2ACPU
Страница 1: ......
Страница 2: ......
Страница 221: ...12 12 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU ...
Страница 222: ...12 13 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU ...
Страница 237: ...12 28 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU MEMO ...
Страница 269: ...16 11 16 POWER SUPPLY MODULE 2 Names and description of parts of the A62P A62PEU and A65P module ...
Страница 271: ...16 13 16 POWER SUPPLY MODULE 4 Names and description of parts of the A66P ...
Страница 343: ...21 21 13 MAINTENANCE AND INSPECTION 21 4 2 Replacement of the fuse for an output module ...
Страница 357: ...22 12 22 TROUBLESHOOTING ...
Страница 359: ...22 14 22 TROUBLESHOOTING MEMO ...
Страница 417: ...App 20 APPENDICES 3 Shift instructions Classification Symbol Description n bit shift 1 bit shift 1 word shift ...
Страница 429: ...App 32 APPENDICES Trigonometric function Classification Symbol Description ...
Страница 432: ...App 35 APPENDICES 15 Clock instructions Classification Symbol Description Clock data read write ...
Страница 537: ...App 140 APPENDICES REMARK 1 Message 1 An error code is displayed in 2 Alert 1 3 Alert 2 ...
Страница 538: ...App 141 APPENDICES APPENDIX 6 EXTERNAL DIMENSIONS Appendix 6 1 CPU Module 1 Q3ACPU Q4ACPU modules Unit mm inch ...
Страница 539: ...App 142 APPENDICES 2 Q2ACPU Q2ACPU S1 modules Unit mm inch ...
Страница 541: ...App 144 APPENDICES 2 A66P power supply module Unit mm inch ...
Страница 542: ...App 145 APPENDICES Appendix 6 3 Main Base Unit 1 A32B base unit 2 A32B S1 base unit Unit mm inch Unit mm inch ...
Страница 543: ...App 146 APPENDICES 3 A35B base unit 4 A38B A38HB A38HBEU base unit Unit mm inch Unit mm inch ...
Страница 567: ...MEMO ...
Страница 569: ......
Страница 570: ......