CPM2A_OPERATION MANUAL (W352-E1-3) (986749), страница 13
Текст из файла (страница 13)
Use crimp terminals or solid wires (not stranded wire) toconnect to the PC. The power supply output terminals can be used with CPUUnits with AC power supplies.Note When equipment must conform to the EC Directives (Low-voltage Directives),use a power supply with double insulation or reinforced insulation.Input ConfigurationThe following diagrams show the input configurations.Note Refer to Section 3 Memory Areas in the Programming Manual (W353) for detailson the allocation of input bits in CPM2A PCs.CPM2A-20CDR-j, CPM2A-20CDT-D, and CPM2A-20CDT1-DTerminals 00 through 11 of “0CH” correspond to bits IR 00000 through IR 00011.24 VDCInputdevicesCPM2A-30CDR-j, CPM2A-30CDT-D, and CPM2A-30CDT1-DTerminals 00 through 11 of “0CH” correspond to bits IR 00000 through IR 00011,terminals 00 through 05 of “1CH” correspond to bits IR 00100 through IR 00105.24 VDC54InputdevicesWiring and ConnectionsSection 3-4CPM2A-40CDR-j, CPM2A-40CDT-D, and CPM2A-40CDT1-DTerminals 00 through 11 of “0CH” correspond to bits IR 00000 through IR 00011,terminals 00 through 11 of “1CH” correspond to bits IR 00100 through IR 00111.24 VDCInputdevices55Wiring and ConnectionsSection 3-4CPM2A-60CDR-j, CPM2A-60CDT-D, and CPM2A-60CDT1-DTerminals 00 through 11 of “0CH” correspond to bits IR 00000 through IR 00011,terminals 00 through 11 of “1CH” correspond to bits IR 00100 through IR 00111,terminals 00 through 11 of “2CH” correspond to bits IR 00200 through IR 00211.Inputdevices24 VDC56Wiring and ConnectionsSection 3-4CPM1A-20EDR1, CPM1A-20EDT, and CPM1A-20EDT1Terminals 00 through 11 of “mCH” correspond to bits 00 through 11 of word IR m.Inputdevices24 VDCCPM1A-8EDTerminals 00 through 07 of “mCH” correspond to bits 00 through 07 of word IR m.Inputdevices24 VDC04060507Note Although the commons are connected internally, they must all be wired.57Wiring and ConnectionsInput Wiring ExampleSection 3-4A CPU Unit with an AC power supply is shown.
CPU Units with DC power supplies don’t have power supply outputs.Input devicesExternal power supply output:300 mA at 24 VDC for CPU Units with 20, 30, 40, or 60 I/O points(CPU Units with a AC power supply input only.)! WARNING When the 24-VDC output (service power supply to the PC) is overloaded orshort-circuited, the voltage may drop and result in the outputs being turned OFF.External safety measures must be provided to ensure safety in the system.
Notproviding proper safety measures may result in serious accidents.58Wiring and ConnectionsSection 3-4Input DevicesThe following table shows how to connect various input devices.DeviceCircuit diagramRelay outputIN5 mA/12 mACPM2ACOM (+)NPN open collectorSensorpower supplyOutputINCPM2A5 mA/12 mACOM (+)0VNPN current outputUse the same power supply forthe input and sensor.ConstantcurrentcircuitOutputIN5 mA/12 mACPM2A+COM (+)0VPNP current outputSensor powersupply5 mA/12 mAINCPM2AOutputCOM (–)0VVoltage outputCOM (+)OutputINCPM2A0VSensor powersupplyNote Do not use the following wiring with voltage-output devices:Sensor powersupplyIncorrect WiringOutputINCPM2A0VCOM(+)59Wiring and ConnectionsSection 3-4High-speed Counter InputsUsing IR 00000 to IR 00002 as High-speed Counter InputsIn these examples, Encoders with an external 24-VDC open-collector output areconnected.Differential Phase Mode(Count frequency: 5 kHz)Pulse Plus Direction Input Mode(Count frequency: 20 kHz)CPM2ACPM2A00000 A-phase inputEncoder00001 B-phase input00002 Z-phase input00000 Pulse inputEncoder00001 Direction inputSensor or switch00002 Reset inputSensor or switchCOMCOM24 VDC24 VDCUp/Down Mode(Count frequency: 20 kHz)Increment Mode(Count frequency: 20 kHz)CPM2ACPM2AEncoderSensor00000 CW input*00000 Pulse input00001 CCW input*00001 Normal input00002 Reset input00002 Normal inputSensorSensor or switchCOMCOM24 VDC24 VDCNote *CW is clockwise and CCW is counter-clockwise.Using IR 00003 to IR 00006 as Interrupt Inputs (Counter Mode)In these examples, an Encoder with an external 24-VDC open-collector output isconnected.Increment or decrement(Count frequency: 2 kHz)CPM2AInput (00003 to 00006)EncoderCOM24 VDCPC Setup SettingsThe input bits shown in the following tables can operate as normal inputs or theycan be assigned special functions in the PC Setup.Special functions for input bits IR 00000 through IR 00002 are set in DM 6642:BitaddressIR 00000IR 00001IR 0000260PC Setup setting (DM 6642 bits 08 to15)00Used as normalinputs.01Used as high-speedcounter inputs.02, 03, or 04Used as inputs forsynchronized pulsecontrol.Used as a normal input.Wiring and ConnectionsSection 3-4Special functions for input bits IR 00003 through IR 00006 are set in DM 6628:BitaddressBits inDM 6628IR 00003IR 00004IR 00005IR 0000600 to 0304 to 0708 to 1112 to 15PC Setup setting (in DM 6628)0Used as normalinputs.1Used as interruptinputs (includingcounter mode).2Used asquick-responseinputs.High-speed Counter Input Connection ExamplesDifferential Phase Mode(Count frequency: 5 kHz)E6B2-CWZ6CEncoder(NPN open-collector output)Pulse Plus Direction Input mode(Count frequency: 20 kHz)CPM2ACPM2ABlackWhiteOrangeE6A2-CS5CEncoder00000 A-phase input00001 B-phase input00001 Direction input00002 Z-phase inputSensor orswitchBrownBlueCOM00002 Reset inputSensorpowerCOMSensor orswitch24 VDCLeakage Current00000 Pulse input24 VDCA leakage current can cause false inputs when using 2-wire sensors (proximityswitches or photoelectric switches) or limit switches with LEDs.
False inputswon’t occur if the leakage current is less than 1.0 mA (2.5 mA for IN00000 toIN00002). If the leakage current exceeds these values, insert a bleeder resistorin the circuit to reduce the input impedance, as shown in the following diagram.Input powersupplyRBleederresistorCPM2A2-wire sensor, etc.LC: CPM2A’s input impedance (kΩ)IC: CPM2A’s input current (mA)EC: CPM2A’s OFF voltage (V) = 5.0 VI: Device’s leakage current (mA)R: Bleeder resistance (kΩ)W: Bleeder resistor’s power rating (W)R+LCI5.0kW max.L C–5.0W + 2.3 W min.RThe equations above were derived from the following equations:RInput voltage (24)Input Current (I C)R)Input voltage (24)Input Current (I C)IWyInput voltage (24)Rx OFF voltage (E C : 5.0)Input voltage (24)tolerance (4)Refer to 2-1-3 I/O Specifications for details on the values LC, IC, and EC.The input impedance, input current, and OFF voltage may vary depending on theinput being used.
(IN00000 through IN00002 have different values.)Inductive LoadsWhen connecting an inductive load to an input, connect a diode in parallel withthe load. The diode should satisfy the following requirements:1, 2, 3...1. Peak reverse-breakdown voltage must be at least 3 times the load voltage.61Wiring and ConnectionsSection 3-42. Average rectified current must be 1 A.INDiodeCPM2ACOMCrimp Terminals! CautionAlways use crimp terminals for the CPM2A’s I/O lines or use solid wire (insteadof 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).3-4-6 Output WiringRelay Output WiringWire the outputs to the CPM2A’s CPU Unit and Expansion I/O Units as shown inthe following diagrams.
Use crimp terminals or solid wires (not stranded wire) toconnect to the PC. The power supply output terminals can be used with a CPUUnit with an AC power supply.• Always use single wire or attach crimp terminals if a stranded wire is used.• Don’t exceed the output capacity or the maximum common current. Refer to2-1-3 I/O Specifications for details.ItemOutput capacityRelay outputs2 A (250 VAC or 24 VDC)Max. common capacity 4 A/commonTransistor outputs, sinking or sourcing01000 and 01001: 200 mA (30 VDC)01002 and higher: 300 mA (30 VDC)0.8 A/commonNote Refer to Section 3 Memory Areas in the Programming Manual (W353) for detailson the allocation of output bits in CPM2A PCs.! WARNING The PC outputs may remain ON or OFF due to deposition or burning of theoutput relays or destruction of the output transistors. External safety measuresmust be provided to ensure safety in the system.
![](https://s.studizba.com/z.php?f=/templates/si/i/noavatar.png&w=100&h=100&t=1"){kind=avatar}
