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DRO Encoders: RDW-PV Draw Wire Encoder

RDW-PV Draw Wire Encoder

Newall’s RDW-PV linear cable encoder provides linear position in a rugged, easy-to-install package.  Simply connect the cable to your moving member of the machine and secure the base to a fixed object (or vice versa). 

The retractable cable is made of nylon coated stainless steel for ultimate strength, durability and long life. The RDW-PV’s compact profile and ability to operate in harsh environments makes it a perfect solution for a variety of industrial applications.

Features:

  • IP66 environmental rating. Ideal for wet, dirty, or even outdoor environments
  • Simple and adaptable installation
  • Linear guide way is not required
  • Measuring range up to 125” (3175mm)
  • Linear resolution to 0.0005”(0.01mm)
  • Zero backlash coupling between integrated incremental encoder and drum

Download RDW-PV Draw Wire Data Sheet

Download High Resolution Photo

Encoder for Spindle Axis of Boring Mill
It can often be difficult to install a linear encoder to the spindle axis of a machine tool.  With the RDW-PV, attach the wire to the spindle assembly and mount the encoder to the machine surface.  The RDW-PV can be used with Newall’s DP1200 or SA-100 DRO units to provide accurate and reliable measurements even in harsh environments.    

Mechanical Specifications

Enclosure: Anodized aluminum and glass filled polycarbonate

Enclosure rating: IP66

Measuring Range: 0- 125" (0 to 3175mm)

Maximum Velocity: 80" (2M) per sec.

Measuring Cable Tension: 24.8 ± 30% oz

Rotational Sensitivity: 12” ± .020 in/rev

Maximum Retraction Acceleration: 10 G

Weight: Approximately 3.3 lbs (max)
 

 

 

Electrical Specifications

Supply Voltage: 5-28 VDC available

Voltage/Output: 25V/V: 5-28 VDC in, Vout = Vin

Current Requirements: 100 mA typical + output load, 250 mA max

Protection Level: Reverse, over voltage and output short circuit

Code: Incremental

Output Format: 2 Channels in quad., with ½ cycle index gated with negative B channel

Resolution: 500 pulses per Inch

Output Termination: M18 Connector

 



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