NT21_Setup Manual (V068-E1-1) (986757), страница 5
Текст из файла (страница 5)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1-1 Installation Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . .3-1-2 Installation in the Operation Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1-3 Power Supply Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1-4 Grounding . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Connecting Link Adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2-1 Connecting an NS-AL002 Link Adapter . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .3-2-2 Connecting an NT-AL001 Link Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Connecting the NT Support Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .Connecting a Bar Code Reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4-1 Connection Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4-2 Setting a Bar Code Reader . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4-3 Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Using a Memory Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .3-5-1 Installation Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5-2 Method of Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .1616161718181822282929293031323215SectionInstallation3-1Note On unpacking the NT21 check the external appearance and confirm that there isno damage. Also confirm that there is no abnormal noise on shaking the PT lightly.3-1InstallationInstall the NT21 in the operation panel and connect the power to the NT21 asdescribed below.3-1-1 Installation EnvironmentObserve the following points when installing the PT in an operation panel.Note1. Do not install the NT21 at sites subject to the following conditions.Otherwise the product may malfunction.• Severe temperature variations• Temperatures or humidities outside the ranges stated in the specifications• High humidity, condensation• Splashing chemical agents• Severe oil splashing• Corrosive or flammable gases• Strong vibrations or shocks• Direct exposure to wind and rain (outdoor sites)• Strong ultra-violet irradiation2.
Take adequate measures to ensure shielding if the NT21 is used at a location subject to any of the following conditions. Otherwise the product maymalfunction.• Static electricity, or noise from other equipment• Strong electromagnetic fields• Nearby power cables• Potential exposure to radioactivity3-1-2 Installation in the Operation PanelThe NT21 is mounted in an operation panel by embedding it in the panel.Use the panel fittings and tool (Philips screwdriver) included in the product package and follow the procedure below.1, 2, 3...1. Open a hole of the dimensions shown below in the panel and install theNT21 from the front side of the panel.100.5178.5+ 0.5 mm0 mm+ 0.5 mm0 mm2.
Attach the panel fittings at the four positions at top and bottom, shown below, from the rear of the NT21.16SectionInstallation3-1Fit the hook of the fitting in the square hole in the body and tighten the screwwith the Philips head screwdriver while lightly pulling the fitting.Note1. During work at the panel, do not allow any metal filings or wire strands toenter the NT21. Otherwise, the product may malfunction.2. The thickness of applicable operation panel is 1.6 mm to 4.8 mm. All fittingsmust be tightened uniformly to a torque of 0.5 to 0.6 N⋅m in order to ensurewater- and dust-resistance. Front sheet of NT21 may be warped if the tightening is too strong or not uniformity. The panel must not be soiled or warped,and must be able to support an installation that will remain secure andstrong. Otherwise, the product may malfunction.3-1-3 Power Supply ConnectionConnect a 24 VDC power supply to the power input terminals.! CautionCarefully check the wiring before switching ON the power.! CautionDo not connect AC power to the DC terminals.
Incorrect wiring may result inburning.Note1. Depending on how the power is switched ON/OFF, the entire system maystop. Follow the correct procedure when switching the power ON/OFF.Otherwise the system may operate unpredictably.2. Use DC power supplies with low voltage fluctuation. An incorrect power supply may result in malfunctions.3. Do not perform a dielectric strength test. Otherwise, the product may malfunction.4.
If complying with EC directives (low voltage directives), use a power supplywith reinforced insulation (compliance with EC directives is planned for June1998).24 VDCCircuitbreaker24 VDCpower supplyPower SupplyThe applicable power supply specifications are as follows.ItemValuePower supply24 VDCAllowable power supply voltage fluctuation range20.4 VDC to 27.6 VDC(24 VDC ±15%)Power supply voltage capacity7 W or more17SectionConnecting Link Adapters3-2Parts Used for ConnectionNote For the connection to the power supply terminal block, use stranded wire of2 mm2 or greater cross sectional Area (14 AWG stranded wire) and M3.5 sizecrimp terminals.Tighten the screws on the terminal block to a torque of 0.8 N⋅m.Otherwise the product may malfunction.Fork typeRound type7 mm or less7 mm or lessRecommended TerminalsMakerFork typeRound typeJapan Solderless Terminal MFG2-YS3A2-3.5Fuji Terminal2-YAS3.5V2-S3.5Nichifu Terminal2Y-3.52-3.5Stranded wiresize2.020 tto 22.6363 mm2(14 to 13 AWG)3-1-4 GroundingThe NT21 has a functional ground terminal ( ).Carry out wiring under the following conditions.1, 2, 3...1.
In cases where the distance between the NT21 is short and it is assumedthat there is no potential difference between grounds, ground as shown inFig. (a) below.2. In cases where there is a potential difference between the grounds of theNT21 and the host, ground as shown in Fig. (b). If there is some distancebetween the NT21 and host and grounding at a single point is difficult, do notconnect the functional ground terminal ( ) of the NT21.3. If the NT21 is installed in the same panel as equipment that generates noise,such as a motor or inverter, do not ground the functional ground terminal( ) of the NT21.NT21HostNT21HostGround at asingle pointGround to100 Ω max.Fig. (a)Fig.
(b)Note Carry out grounding correctly in order to prevent operating errors due to noise.3-2Connecting Link AdaptersThis section describes the installation of the NT-AL001 and NS-AL002 LinkAdapters, including the external dimensions, procedure for mounting and removal, and specifications. Refer to this information when designing the controlpanel. For further details, refer to the Instruction Sheet supplied with the NTAL001 or NS-AL002.3-2-1 Connecting an NS-AL002 Link AdapterThe NS-AL002 Link Adapter connects directly to the NT21’s serial port B andconverts RS-232C communications to RS-422A or RS-485.
The NT21 supplies18SectionConnecting Link Adapters3-2power to the Link Adapter through pin 6 of the RS-232C connector, so an external power supply is not required.Note1. The RS-232C connector is not insulated from the RS-422A/RS-485 connector within the NS-AL002 Link Adapter.2.
Always turn OFF the NT21’s power supply before installing/removing a LinkAdapter or connecting/disconnecting cables.3. Do not touch the surface of the printed circuit board or any electronic components with bare hands. Also, always discharge any static electricity bytouching a grounded object before installing the Link adapter or connectingcables.DimensionsThe following diagram shows the dimensions of the NS-AL002 Link Adapter. Alldimensions are in mm.Mounting screw (x2)(Units: mm)Installation and RemovalThe NS-AL002 Link Adapter connects directly to serial port B on the NT21. Afterinserting the D-SUB connectors, tighten the screws on the connectors to securethem. Tighten the D-SUB connector screws to 0.3 N⋅m and tighten the RS-422A/RS-485 terminal screws to 0.5 N⋅m.When removing the cables, loosen the screws and pull out the connectors.SpecificationsThe following tables list the NS-AL002 Link Adapter’s general and communications specifications.General SpecificationsItemSpecificationDimensions45Weight50 g max.Ambienttemperature4928.5 mm (WOperating0 to 50_CStorage–20 to 60_CHD)Operating ambient humidity35% to 85% (with no condensation)Rated power supply voltage+5 V " 10%(through pin 6 of the RS-232C connector)Rated power supply current150 mW max.Operating environmentNo corrosive gasesVibration resistanceMeets the NT21’s ratings.Shock resistanceMeets the NT21’s ratings.19SectionConnecting Link Adapters3-2Communications Specifications (RS-422A/485 Interface)ItemSpecificationBaud rate115.2k bps max.
(depends on the RS-232C baudrate)Transmission distance500 m max.Terminal block configuration8-terminal detachable terminal block, M3.0InsulationNon-insulated (See note.)Note The RS-422A/RS-485 connector is not insulated from the RS-232C connector.DIP Switch SettingsThe NS-AL002 Link Adapter has a 4-pin DIP switch that sets the RS-422A/RS-485 communication conditions. Set the DIP switch before connecting thecommunications cable.ONOFFThe following table shows the functions of the DIP switch pins.
The factory defaults are OFF for all 4 pins.Pin(s)FunctionONOFF1Communications modeRS/CS controlNo RS/CS control2 and 3Communications method 2-wire (RS-485)4-wire (RS-232C)4Terminating resistanceTerminator OFFTerminator ONWhen using 1:1 NT Link communications, set the communications mode to “NoRS/CS control” by turning OFF pin 1.When using 1:N NT Link communications (standard or high-speed), set thecommunications mode to “RS/CS control” by turning ON pin 1.Pin AllocationThe Link Adapter has an RS-232C connector and a terminal block for anRS-422A/485 interface connection.
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