Draw Wire Linear Transducer- Encoder (DWDT-O)

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    Mounting

  • 4 M6 Holes at 59mm X 90.4 mm
  • he Mounting of the Sensor should be such that the pulling of the rope is in line with the rope guide.
  • Draw wire Linear Transducer (DWDT) Is a Linear Distance Measuring Transducer for a Travel upto 1000 mm.
  • Due to Flexibility of the Wire the product is more adorable for application with long stroke measurement.
  • DWDT- O has a Optical Incremental encoder attached to one end of the sensor. Which is coupled with a Drum onn which the rope has been wound very precisely. On pulling the Rope the encoder shaft rotates and hence gives the information of the linear motion.
  • Since the Rope has been connected on the rope based on the appropriate tention of spring there is no error due to Back lash or play.
  • The Resolution of the sensor can be increased or decreased based on the selection of the encoder.



Technical Parameters

Parameter Result
Maximum Rope Length 1000mm or 1500mm
Maximum Vibration 20g - 11ms/2g
Maximum Shaft Loading 20N Axial, 50N Radial
Drum Size (Length of rope in One turn of Encoder) 150.864mm
Encoder PPR in One Turn 500 and 1000 PPR (Standard)
Other available on Request.
Number of channels A&B with 90 deg Phase shift (Standard) Where as A,B,Z, A', B', Z' or any combination of this are available on request)
Maximum speed of pulling rope 33mm/ second
Encoder Supply 5Vdc, 8-30Vdc
Max. No. Load Current 100mA, 50mA
Maximum output current +/- 20mA
Output Type PNP / NPN
Operating Temperature 0 - 60deg
Storage -20 to 70 deg
Protection Class IP 64

Material

Housing Alluminum
Rope : Stainless Steel
Rope Guide Brass.

Ordering Code

DWDT-O-PPR of Encoder- Stroke Length-Any Specific Info.

For Example: DWDT-O-500-1000

Mechanical Drawing

Electircal Analog Output

Parameter Value
Supply Voltage (Vsupply) 5Vdc(+/- 10%) or 3.3Vdc
Supply Current 20mA
Response time 50mS
Resolution 12bit
Load Resistance Minimum 10k ohms
Output (Voutput) 3% to 97% Vsupply (Ratiomatric)
Linearity 1% Independent Linearity ( Available 0.5% on request)

Pulse Width Modulation Output

Parameter Results
Supply Voltage (Vsupply) 5Vdc(+/- 10%) or 3.3Vdc
Supply Current 20mA
Frequency 200Hz, 500Hz, 1K Hz or 2 Khz based on requirement
Resolution 12bit
Output (Voutput) 0% to 100% duty Cycle
Linearity 1% Independent Linearity ( Available 0.5% on request)

Redundant Analog Output

The Graph is just for indicative purpose. Offset between Output 1 and Output 2 can be change or made

Parameter Results
Supply Voltage (Vsupply) 5Vdc
Supply Current 50mA
Electrical Angle Default 359.92 deg. (Customization possible)
Response Time 1kHz
Resolution 12bit
Output (Voutput) 0 to 5Vdc ( Redundant Output) (ideally 3% to 97% Vinput)
Load Resistance Minimum 10K Ohms
Linearity 1% Independent Linearity ( Available 0.5% on request)

Incremental Output

Parameter Results
Supply Voltage (Vsupply) 5Vdc / 3.3Vdc
Supply Current 20mA
Incremental Output
Electrical Speed 10000RPM Max.
PPR (Pulse Per Revolution)(A&B) 25,50,100,200,256,300,400,500,512,1000,1024 A & B Pulse Lag each other by 90deg.(TTL)
Output (Voutput) 0 to 5Vdc ( Redundant Output) (ideally 3% to 97% Vinput)
Index pulse Z 1 pulse per RPM (TTL)

Low Speed Quadrature Output


Parameter Results
Supply Voltage (Vsupply) 5Vdc / 3.3Vdc
Supply Current 20mA
Incremental Output
Electrical Speed 400RPM Max.
PPR (Pulse Per Revolution)(A&B) 8,16,32,64,128,256,512,1024,2048 A & B Pulse Lag each other by 90deg.(TTL)
Output (Voutput) 0 to 5Vdc ( Redundant Output) (ideally 3% to 97% Vinput)
Index pulse Z 1 pulse per RPM (TTL)

Serial Peripheral Interface Sensor

The RHSS12-XSPI is a Absolute encoder which acts as a slave and communicate with master micro controller as per the standard Protocol of SPI.
As per standard protocol of SPI RHSS12-XSPI communicate with master protocol when the MOSI pin is active high or 3FFF hex data is sent on the bus and the CS pin need to toggle from low to high for only one clock pulse.
RHSS12-XSPI communicate in 16 Bit of Transmission. After each cycle of communication it is compulsory to toggle CS pin from high to low.
RHSS12-XSPI has a provision of Dual Output first SPI communication and PWM mode of communication 14 Bit and 12 Bit of Resolution respectively.
Number of sensors can be connected in daisy chain mode of 4 wire or (n+3 wire connection). please contact Mr. Pavan Kinariwala(pavankinariwala@gmail.com) for more information on the same.
RHSS12-XSPI will communicate the angle information in below pattern.

Parameter Results
Input Voltage (Vinp) 5Vdc / 3.3Vdc
Maximum clock Frequency 50k Hz.
Digital pin Input / output level including address pins.
VDD- 5Vdc (Vinp 5Vdc)
VDD- 3.3Vdc (Vinp -- 3.3Vdc)
1 -- VDD (5V or 3.3V) -0.7V
0 -- GND +0.4V
PWM Frequency 1 Khz.

Two Wire Communication sensor

The RHSS12-XSPI is a Absolute encoder which acts as a slave and communicate with master micro controller as per the standard Protocol of SPI.
As per standard protocol of SPI RHSS12-XSPI communicate with master protocol when the MOSI pin is active high or 3FFF hex data is sent on the bus and the CS pin need to toggle from low to high for only one clock pulse.
RHSS12-XSPI communicate in 16 Bit of Transmission. After each cycle of communication it is compulsory to toggle CS pin from high to low.
RHSS12-XSPI has a provision of Dual Output first SPI communication and PWM mode of communication 14 Bit and 12 Bit of Resolution respectively.
Number of sensors can be connected in daisy chain mode of 4 wire or (n+3 wire connection). please contact Mr. Pavan Kinariwala(pavankinariwala@gmail.com) for more information on the same.
RHSS12-XSPI will communicate the angle information in below pattern.

Parameter Results
Input Voltage (Vinp) 5Vdc / 3.3Vdc
Maximum clock Frequency 10k Hz.
Digital pin Input / output level including address pins.
VDD- 5Vdc (Vinp --6 to 35Vdc or Vdc)
VDD- 3.3Vdc (Vinp -- 3.3Vdc)
1 -- VDD (5V or 3.3V) -0.7V
0 -- GND +0.4V
PWM Frequency 1 Khz.




DWDT-HE

  • Draw wire linear transducer upto 150mm stroke with Contactless Hall's effect Absolute Encoder (Detachable)
  • For Detailed Datasheet and more technical information please contact Mr. Pavan Kinariwala -9998700754





DWDT-P

  • Draw wire linear transducer upto 1500mm stroke with Multiturn Wire Wound Potentiometer (Detachable)
  • For Detailed Datasheet and more technical information please contact Mr. Pavan Kinariwala -9998700754