A30 Single Range Tensioncells P-2012-3 819-0403 Installation Instructions
Contents General Information . . . . . . . . . . . . . . . . . . . 3 Installation and Operation . . . . . . . . . . . . . . . 6 Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . 8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 9 Recalibration . . . . . . . . . . . . . . . . . . . . . . . 10 Dimension Drawing . . . . . . . . . . . . . . . . . . 11 Warranty . . . . . . . . . . . . . . . . . . . . .
Description A. General Information B. The Mechanical System Warner Electric Series 30 Type A Tensioncells are force transducers, specially designed to measure and control tension on single strand wire, cable or filaments, on continuous strip processing lines. They convert the mechanical force of strand tension into an electrical signal, which is directly proportional to the strand tension.
C. The Electrical System The electrical system consists of a Linear Variable Differential Transformer (LVDT) which converts the mechanical deflection of the Load Plate into a useful electrical output signal. (See Figure 3) The moveable core of the LVDT is mechanically coupled to the Load Plate. This core assemble is factory set and is not accessible. D.
E. Description of Operation The total resultant load per cell (RF) is calculated by resolving all force vectors acting upon the Tensioncell, with respect to the Loading Line (OL). (RF) is the resultant of both TENSION and TARE loads, PER CELL!! (See Figure 5) The resultant tare is minimized by mounting the Tensioncell so that (N) is 31°.
Installation and Operation A. Inspection Upon Delivery Warner Electric tensioncells are carefully packaged in sturdy reinforced cartons or wooden boxes and are securely blocked or bolted in place. 1. Upon receipt, examine the exterior of the container for obvious damage or tampering. The locating tab prevents the Tensioncell from rotating and secures it in a permanent location. It also provides a means of repeating rotary position when the Tensioncell needs replacement.
To install Tensioncells: E. Mechanical Alignment 1. Make sure a 5/8” diameter hole is drilled through the machine frame in line with the centerline of the measuring roll shaft for the 5/8-11 UNC mounting bolt. Align the sectional measuring roll to avoid any mechanical binding or friction. The measuring roll must be level and perpendicular to the path of the strip material for accurate measurement. 2. Fasten the Tensioncell to the machine frame with the mounting bolt.
Set up and Adjustments Specifications Type "K" 24 volt DC LVDT Specifications Input . . . . . . . . . . . . . . . . . . . . . . . . .6-30 volts DC Output . . .0.5-6.5 volts DC (nominal, open circuit) Output Impedence . . . . . . . . . . . . . . . .2.5K ohms Current Consumption . . . . . . . . . . . . . . . . . .40 mA Full Load Adjustment After the loadcell has been zeroed, a pull test can be made to check the output voltage of the loadcell at full load. 1.
Trouble Shooting When properly installed in accordance with the original design specifications Warner Electric tensioncells should require little or no regular maintenance or service. 3. Are LVDTs open or shorted? To check, turn off power and disconnect the input and output leads. Check coil continuity and resistance. (Refer to Figure 10) S1 Certain conditions, however, can impair their inherently accurate and reliable performance.
Recalibration After Installation Wall Mounted Tensioncells can be relocated around the center of the measuring roll. The theory of this operation is explained in the Description of Operation on Page 5. If this procedure cannot accomplish the necessary changes because the tension requirements are extremely different than the original application, it will be necessary to return the Tensioncells to the factory for new cells.
3.31 3.63 .94 2.44 3.75 1.56 2.63 1.63 4-Pin Connector 5/8 - 11UNC** 1.00 2.31 1.06 3.56 1.81 .25 Dia. Hole for Locking Screw 3.42 ** Warner Electric wall mounted tensioncells are located by a 5/8-11 bolt at the roll centerline and locating tab which maintains rotational position to the tensioncell. (See Page 5.) Shaft Specifications Code 3/4 1.0 1-1/4 Inches 12 16 20 Table I-B Note: Other shaft diameters are available as special order.
Warranty Warner Electric LLC warrants that it will repair or replace (whichever it deems advisable) any product manufactured and sold by it which proves to be defective in material or workmanship within a period of one (1) year from the date of original purchase for consumer, commercial or industrial use. This warranty extends only to the original purchaser and is not transferable or assignable without Warner Electric LLC’s prior consent. Warranty service can be obtained in the U.S.A.
