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April 2007Counters, Panel Meters, Tachometers and TimersSpecial Function ControlsAmbassador Series Closed-Loop Speed Control77Product DescriptionThe Ambassador speed control providesa tightly regulated, isolated, 0 –10V speed reference signal to a drive.It is most often used in follower modeapplications, such as conveyor speedmatching/mis-matching, cable productionlay control, cable take-up reel traversingmechanism speed control andmany others. In master mode, it ismost commonly used for constantweb speed take-up roll control, wherethe increasing roll diameter requiresconstant motor slowing over thecourse of filling a roll. Also, wherefeedback scaling and presets arerequired in units other than RPM or Hz.For instance, using a flowmeter as thefeedback sensor, control the speed of amotor-driven pump in units of gallons/minute.The two preset version offers additionalfeatures, such as reversing, andremote preset adjustments by “bumping”external pushbuttons.Features■ 2-line, 16-character, alphanumeric,high visibility, LCD backlit, 7.5 mm[0.3"] high character display■ 1 or 2 speed presets■ Isolated 1 – 10V DC analog out■ Selectable master/slave/jog modes■ Proportional integral errorcorrection■ 35 kHz frequency inputs■ ±0.015% speed regulation■ 12V DC @ 125 mA power output■ 12-Bit DAC resolution■ RS-485 serial communications■ NEMA 4X front panelStandards and Certifications■ UL ListedCat. No. 57401400Technical Data and SpecificationsPower Input■ 57401-40X: 115V AC (±15%) std.,50 to 60 Hz, 0.2A■ 57402-40X: 230V AC (±15%) opt.,50 to 60 Hz, 0. 1ADC Power Output■ 12V DC (±10%), 125 mA maximum(includes all line and loadvariations)Environment■ Operating Temperature: 32 to 131°F(0 to 55°C).■ Storage Temperature: -4 to 158°F(-20 to 70°C).■ Operating Humidity: 85% Relative,non-condensing■ NEMA 4X rated when mounted withgasket providedSpeed Regulation (Closed Loop)■ Accuracy: ±0.015%■ Update Time: 5 mSFrequency Inputs■ Current Sinking —❑ Impedance: 4.75K❑ Voltage Maximum: 24V DC❑ High threshold: 3.5V DC❑ Low threshold: 1.9V DC❑ Pulse Rate: 1 Hz – 35 kHz■ Magnetic —❑ Impedance: 16 k min.❑ Voltage —– Maximum: 65V AC rms– Maximum: 200 mV p-p❑ Pulse Rate: 1 Hz – 35 kHzControl Inputs■ Impedance: 4.75k ohms to +5V DC■ Voltage —❑ High: +3.7 to +24V DC❑ Low: 0.0 to 0.9V DC■ Response: 40 Hz maximumControl Outputs■ Type: NPN open-collector withtransient protection■ Max. Voltage (OFF state): 30V DC■ Max. Current (ON state): 200 mA at1.3V DCDrive Signal■ Separate power supply with 1500VAC isolation❑ 5740X-400:– Resolution: 12 bits– Full Scale Voltage: 10V DCminimum into 5 mA❑ 5740X-401:– Resolution: 12 bits– Full Scale Voltage: ±10V DCminimum into 5 mA; DriveReference potentiometerallows full scale voltage to bereduced to less than ±3V DCCommunication■ Type: RS-485■ Format: 1 start bit, 1 parity bit, 1stop bit, seven-bit ASC I I characters■ Protocol: Opto-22 compatible■ Speed: 300, 1200, 2400, 4800, 9600and 19200 baud■ Parity: NoneConnections■ Type: Unpluggable screw terminalstrips■ Conductor Size: 14 – 22 AWG(2.1 – 0.38 mm 2 ) 600V solid,stranded or fused (preferred)PG05400001EFor more information visit: www.eaton.com
78Counters, Panel Meters, Tachometers and TimersSpecial Function ControlsAmbassador Series Closed-Loop Speed ControlApril 2007Product SelectionTable 74. Product Selection — Closed Loop Speed ControlDescription1 Preset, 115V AC2 Presets, 115V AC1 Preset, 230V AC2 Presets, 230V ACCatalog*Number57401400574014015740240057402401DimensionsSPEED250 F/MPGMCLRVIEWADJSTEP•2.946 ±0.015(74.83 ±0.38)EXIT ENT SEL2.946 ±0.015(74.8 ±0.38)5.60 ±0.03(142.24 ±0.76)Gasket12345678910111234333231302928272625242313141516171819202122Panel CutoutMax. PanelThickness0.50 (12.7)2.677 ±0.028(68.00 ±0.70)2.677 ±0.028(68.00 ±0.70)Figure 68. Closed Loop Speed Control — Approximate Dimensions in Inches (mm)Discount Symbol . . . . . . . . . . . . . . . . . . . . . . . . CC-1* Consult Sales Office for PricingFor more information visit: www.eaton.comPG05400001E
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