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ALVTIVAR 0,75 TO 4 kW - TM-5-3895-374-24-1_238
Validation of the module

TM-5-3895-374-24-1 Paving Machine Bituminous Material: Crawler Mounted Diesel Engine Driven Manual
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Special use TM 5-3895-374-24-1 Unidirectional speed Measurement of the actual motor speed with a tachogenerator allows the speed to be regulated regulation This being the case, automatic slip compensation depending on the load incorporated in the ALTIVARATV-452 is cancelled and replaced by the speed regulation loop When the motor is used in one direction only, the tachogenerator can be connected to the speed controller via a simple adaptation circuit Utilization safety measures - Comply with the polarities shown for the tachogenerator connections - The SN+ terminal voltage must be < + 5V - Link PN to OVN - Use the controller in the forward direction only (terminal FW) - Connect the tachogenerator using twisted cables CAUTION: neither this adaptation circuit, nor that of the tachogenerator are isolated from the supply Accuracy + 0,1 % of the maximum speed for  - a torque variation from 0,2 Tn to Tn, - a speed range from 1 to 50/60 Calculation of R1 calculate the maximum voltage provided by the tachogenerator EXAMPLE motor 1500 rpm at 50 Hz tachogenerator 0,06 V/rpm \ U = 0,06 x 1500 x 67 = 120,6 V frequency range 67 Hz 50 R2 slide in median position R1 = 1,5 x 120,6 - 2 = 34 kW Use 33 kW 5 Adjustments Connect a voltmeter to the tachogenerator terminals Adjust the R2 potentiometer to its minimum setting, in fully anti-clockwise position Start the motor and set the maximum speed using the reference potentiometer Turn R2 clockwise until the corresponding voltage is obtained (page 3-211)







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