CPM2A_OPERATION MANUAL (W352-E1-3) (986749), страница 12
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Not providing proper safety measures may result in seriousaccidents.The following diagram shows an example of an interlock circuit.Interlock Circuit01005CPM2AMC1MC2Motor forward01006MC2MC1Motor reverseIn the interlock circuit above, MC1 and MC2 can’t be ON at the same time even ifCPM2A outputs 01005 and 01006 are both ON (an incorrect PC operation).3-2Selecting an Installation SiteThe CPM2A is resistant to harsh conditions and highly reliable, but installing thePC in a favorable site will maximize its reliability and operating lifetime.44Selecting an Installation Site! CautionSection 3-2Be sure to install the CPM2A correctly, as outlined in this manual.
Failure to do somay result in Unit malfunction.3-2-1 Installation Site ConditionsNote Do not install the CPM2A under any of the following conditions.• Locations subject to direct sunlight.• Locations subject to a temperature below 0°C or over 55°C.• Locations subject to a humidity below 10% or over 90%.• Locations subject to condensation as the result of severe changes in temperature.• Locations subject to corrosive or flammable gases.• Locations subject to dust (especially iron dust) or salts.• Locations subject to shock or vibration.• Locations subject to exposure to water, oil, or chemicals.Be sure that the conditions at the installation site conform to the CPM2A’s general specifications.
Refer to 2-1-1 General Specifications for details.Note Provide proper shielding when installing in the following locations:• Locations subject to static electricity or other sources of noise.• Locations subject to strong electromagnetic fields.• Locations subject to possible exposure to radiation.• Locations near to power supply lines.3-2-2 Panel/Cabinet InstallationConsider PC operation, maintenance, and surrounding conditions when installing the CPM2A in a panel or cabinet.OverheatingThe operating temperature range for the CPM2A is 0_C to 55_C. Be sure thatthere is adequate ventilation for cooling.• Allow enough space for air circulation.• Do not install the CPM2A above equipment that generates a large amount ofheat, such as heaters, transformers, or large resistors.• Install a cooling fan or system when the ambient temperature exceeds 55_C.Control panelFanCPM2AAir ventElectrical NoisePower lines and high-voltage equipment can cause electrical noise in the PC.• Do not install the CPM2A in a panel or cabinet with high-voltage equipment.• Allow at least 200 mm between the CPM2A and nearby power lines.200 mm min.CPM2A200 mm min.45Installing the CPM2AAccessibility3-3Section 3-3Ensure that the CPM2A can be accessed for normal operation and maintenance.• Provide a clear path to the CPM2A for operation and maintenance.
High-voltage equipment or power lines could be dangerous if they are in the way duringroutine operations.• The PC will be easiest to access if the panel or cabinet is installed about 3 to 5feet above the floor.Installing the CPM2AThis section describes how to install the CPM2A and connect Expansion Unitsand Expansion I/O Units. Refer to Appendix B for diagrams showing the dimensions of the Units.3-3-1 CPM2A OrientationThe CPM2A must be installed in the position shown below to ensure adequatecooling.CorrectDo not install the CPM2A in either of the following positions.IncorrectIncorrect3-3-2 CPM2A InstallationThe CPM2A can be installed on a horizontal surface or on a DIN track.Surface InstallationUse the following pattern when installing a CPM2A CPU Unit, Expansion Unit, orExpansion I/O Unit on a vertical surface.
(Use M4 dia. x 15 screws.)Four M4 holes100 mmUnitA8 mmThe width (A) between the mounting holes depends on the Unit.Unit46CPU Unit with 20/30 I/O terminalsWidth (A)(tolerance: ±0.2 mm)120 mmCPU Unit with 40 I/O terminals140 mmInstalling the CPM2ASection 3-3UnitCPU Unit with 60 I/O terminalsWidth (A)(tolerance: ±0.2 mm)185 mmExpansion I/O Unit with 20 I/O terminals76 mmExpansion I/O Unit with 8 input terminals56 mmExpansion I/O Unit with 8 output terminals56 mmAnalog I/O Unit56 mmCompoBus/S I/O Link Unit56 mmRS-232C Adapter21 mmRS-422 Adapter21 mmTemperature Sensor Unit76 mmAllow 10 to 15 mm between the Units when installing an Expansion Unit, Expansion I/O Unit, or Communications Adapter next to the CPU Unit.21 mm81 mmCommunicationsAdapterDIN Track Installation100 mmCPU Unit10 to15 mm10 to15 mmExpansion Unitor Expansion I/OUnitThe CPM2A can be installed on a 35-mm DIN Track.DIN TrackEnd Plates(PFP-M)PFP-100N (1 m)PFP-50N (50 cm)PFP-100N2 (1 m)InstallationLower the CPM2A so that the notch on the back of the PC catches the top of theDIN Track.
Push the PC forward until the lock snaps into place.47Installing the CPM2ASection 3-3RemovalPry the lock down with a flat-blade screwdriver and pivot the PC upward toremove it.Screwdriver3-3-3 Connecting an Expansion Unit or Expansion I/O UnitUp to 3 Expansion Units or Expansion I/O Units can be connected to a CPM2ACPU Unit. Use the following procedure when connecting an Expansion Unit orExpansion I/O Unit.1, 2, 3...1.
Remove the cover from the CPU Unit’s or the Expansion I/O Unit’s expansion connector. Use a flat-blade screwdriver to remove the cover from theExpansion I/O Connector.Expansionconnectorcover2. Insert the Expansion I/O Unit’s connecting cable into the CPU Unit’s or theExpansion I/O Unit’s expansion connector.48Wiring and ConnectionsSection 3-43. Replace the cover on the CPU Unit’s or the Expansion I/O Unit’s expansionconnector.3-4Wiring and ConnectionsThis section provides basic information on wiring the Power Supply Unit, Expansion Units, and Expansion I/O Units, and on connecting Programming Devices.3-4-1 General Precautions for Wiring! CautionLeave the protective label in place while wiring.
The Unit may malfunction ifstrands of wire get inside the Unit. After completing wiring be sure to remove thelabel to avoid overheating.Protective labelI/O Line NoiseDo not run CPM2A I/O lines in the same duct or conduit as power lines.Hanging DuctsLeave at least 300 mm between the power cables and the I/O or control wiring,as shown in the following diagram.CPM2A I/O lines300 mm min.Control cables andCPM2A power lines300 mm min.Power cables49Wiring and ConnectionsSection 3-4Floor DuctsLeave at least 200 mm between the wiring and the top of the duct, as shown inthe following diagram.Control cables andCPM2A I/O lines CPM2A power linesPower cablesMetal plate (iron)200 mm min.ConduitsSeparate the CPM2A I/O lines, power and control lines, and power cables, asshown in the following diagram.Control cables andCPM2A I/O lines CPM2A power lines Power cables3-4-2 Removing the Terminal BlockThe terminal block on the CPM2A CPU Unit can be removed.
Use the followingprocedure.The terminal blocks on the Expansion Units and Expansion I/O Units cannot beremoved.1, 2, 3...1. Loosen the black screws at the ends of the terminal block as shown in thefollowing diagram.Black screwsBlack screws50Wiring and ConnectionsSection 3-42. Lift the terminal block off the CPU Unit.3-4-3 Ground WiringBe sure to ground the earth terminal to less than 100 Ω in order to protect againstelectric shock and incorrect operation from electrical noise. Be sure to use a wireof at least 1.25 mm2 for grounding.Grounding! WARNING During installation, be sure to ground to 100 Ω max.Ground to 100 Ω or lessAC power supply unitGround to 100 Ω or lessDC power supply unitNote Always disconnect the functional earth terminal before conducting a withstandvoltage test.Crimp Terminals! CautionAlways use crimp terminals for the CPM2A’s ground lines or use solid wire(instead of a stranded wire).
Do not connect bare stranded wires directly to terminals. Stray wire strands can short-circuit and cause a fire.Use M3 crimp terminals and tighten the terminal screws to a torque of 0.5 N S m.Fork terminal6.2 mm max.Ring terminal6.2 mm max.The recommended wire size for solid wires is 0.4 to 1.2 mm (AWG26 to AWG18).51Wiring and ConnectionsSection 3-43-4-4 Power Supply Wiring100- to 240-VAC PowerSupplyWire a separate circuit for the CPM2A’s power supply circuit so that there isn’t avoltage drop from the inrush current that flows when other equipment is turnedon.When several CPM2A PCs are being used, it is recommended to wire the PCson separate circuits to prevent a voltage drop from the inrush current or incorrectoperation of the circuit breaker.Use twisted power supply wires to prevent noise from the power supply lines.Adding a 1:1 isolating transformer reduces electrical noise even further.Considering the possibility of voltage drops and the allowable current, be sure touse thick power lines.Twist the wires.
The cross-sectional areaof each wire must be 1.25 mm2 min.IsolatingtransformerACpowersupplyNoteBreaker1. Before connecting the power supply, make sure that the CPU Unit requiresan AC power supply and not a DC power supply. The CPU Unit’s internalcircuitry will be damaged if AC power is mistakenly supplied to a CPU Unitthat requires a DC power supply.2. The power supply input terminals are at the top of the CPU Unit; the terminals at the bottom of the CPU Unit output 24-VDC power for external devices.
The CPU Unit’s internal circuitry will be damaged if AC power is mistakenly supplied to a CPU Unit’s power supply output terminals.! CautionTighten the terminal block screws of the AC Power Supply to the torque of0.5 N S m. Loose screws may result in fire or malfunction.! CautionAlways use crimp terminals for the CPM2A’s power lines. Do not connect barestranded wires directly to terminals. Stray wire strands can short-circuit andcause a fire.Crimp TerminalsUse M3 crimp terminals and tighten the terminal screws to a torque of 0.5 N S m.Connect a ring terminal to each terminal screw.Ring terminal6.2 mm max.52Wiring and Connections24-VDC Power SupplySection 3-4Use a DC power supply with sufficient capacity and low ripple.24 VDCNote1. Do not perform a dielectric test on the DC power supply terminals on theCPU Unit.
The test might damage the PC’s internal components.2. When equipment must conform to the EC Directives (Low-voltage Directives), use a power supply with double insulation or reinforced insulation.Crimp Terminals! CautionAlways use crimp terminals for the CPM2A’s power lines or use solid wire(instead of a stranded wire). Do not connect bare stranded wires directly to terminals. Stray wire strands can short-circuit and cause a fire.Use M3 crimp terminals and tighten the terminal screws to a torque of 0.5 N S m.Fork terminal6.2 mm max.Ring terminal6.2 mm max.The recommended wire size for solid wires is 0.4 to 1.2 mm (AWG26 to AWG18).53Wiring and ConnectionsSection 3-43-4-5 Input WiringWire the inputs to the CPM2A’s CPU Unit and Expansion I/O Units as shown inthe following diagrams.
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