As of June 18, 2008
 
Series PES/PED LINEAR ENCODER (Fully Enclosed) Optical Incremental
Specification Drawings Ordering Information Detailed Information[PDF]

 

PES - Starting at US $215.00 1" stroke
(250 lines per inch, 5v TTL Sgl-ended)

PED - Starting at US $360.00 2" stroke
(500 lines per inch, 5v, Linedriver)

US Digital made as private label.

FEATURES

  • Resolution 0.002", 50 micron, 0.001" or 0.0005"
  • Fully enclosed Compact Design NEMA 12/IP-56
  • Stroke 1" to 2", Std. 3/8" shaft stem
  • 5v, TTL compatible or 5v linedriver output
  • 125, 127, 250, 500 line count per inch
 Specification

 Electrical
Pulse per Inch Up to 500 lines per inch
Supply Voltage 5vdc TTL, 5vdc Line Driver
Output Format Dual Square Wave in Quadrature
in 5vdc TTL (Index option)
in 5vdc Line Driver (Index Option)
Output Circuit Line Driver 26C31
(Receiver 26C32 recommended)
TTL Output
Supply Voltage 5vdc ±0.5
Current Consumption 88mA Max. No Load
Output Voltage
     Sourcing to +5
     Sinking to Ground
Min 2.4v Typ. 3.4v @ -20mA
Typ. 0.2v Max. 0.4v @ 20mA
Frequency Response 100KHz
Cycle Error Typ. 3.0°, Max 5.5°
Symmetry Min. 150°, Typ. 180°, Max. 210°
Quadrature & Index Pulse width Min. 60°, Typ. 90°, Max. 120°

Mechanical
Plunger Force 1" Version
Plunger Force 2" Version		 3-6 oz.
3-9 oz.
Travel 1"      Version
Travel 2"      Version		 1.050 min. in.
2.050 min. in.
Side Load 1 lb.

 Environmental
Vibration 20G @ 5-2000Hz
Operation Temp. 0-50°C
1" Temp. Coefficient -0.000036"/°C
2" Temp. Coefficient -0.000075"/°C
Enclosure NEMA 12/IP56
Shaft Eccentricity Plus Radial Play* 0.004"
*Note: Radial play translates directly to position inaccuracy.

Absolute Max. Ratings
Vibration Max 20G @ 5-2000Hz
Linear Response 400 in./sec.-250 line per inch

Resolutions: (based on X4 quadrature decoding)
Line Count Per Inch
Resolution
Accuracy
125
0.002"
±0.002"
127
50 micron
±50 micron
250
0.001"
±0.001"
500
0.0005"
±0.0005"