Wheeled Encoder - RH-P Series
RH-P - User Selectable Pulses per Revolution

The RH-P encoder, also known as a Pulse Position Indicator (PPI), generates tracking pulses for web applications, and in particular for material handling sortation applications when used with barcode laser scanners or CCD vision systems. The number of pulses per each revolution of the wheel is selectable by setting configuration switches. It typically is equipped with two 12 inch or 30 centimeter circumference measuring wheels that ride directly on the conveyor belt or web, eliminating any slippage problems typically encountered with shaft encoders. With its double wheel construction, the encoder is self-aligning when allowed to pivot freely from its integral arm. The encoder's weight is sufficient to maintain contact when mounted above the moving material.

Standard Features and Options:
•  Progammable via DIP switches at installation time
•  User selectable pulses per revolution
•  User Selectable Output: Current sinking (NPN), Current sourcing (PNP), NPN or open collector, or Push/Pull Output
•  Exclusive "anti-jitter" circuit
•  Shourt-circuit and ESD Protection
•  5 vdc, or 8 to 30 vdc Supply voltages
•  Mounts either above or below a web, conveyor belt, or roller
•  Optional 12 inch or 30 cm. circumference measuring wheels

ELECTRICAL

• Power Input (specify voltage when ordering):

• Supply Current: 50ma maximum (no load)
• Output Current (I₀): 50ma max source/sink
• Output Circuits:
  • Push/Pull (Combined sourcing/sinking) 
  • Current sinking NPN transistor 
  • Open collector (Vcc=30 vdc max) 
  • Curent sourcing PNP transistor
     All are switch selectable for single output model; factory configured for 2 or 3 outputs
• Output Waveform: 50/50 squarewave
• Pulse On-Off Ratio: 50% ± 10%
• Pulse Interval Jitter: ±10%
• Quadrature Deviation: 30° (max)
• Pulse rise time: 2 µsec (max)
• Pulse fall time: 5 µsec (max)
• Voltage (high): V_In-2.5 vdc (min)
• Voltage (low): 1.5 vdc (max)
• Index Pulse: approximately the width of 1 pulse on output A 
  (600 rpm, V_1N=24vdc, 10ma<I₀<50ma, 25° C) 
• Operating temperature: 0° to 70° C
• Pulse Rate: 0 - 30 kHz
• Short Circuit
• ESD to 8KV direct and 25KV air
• Output Protection:
• RoHS Compliance available on most models.

ELECTRICAL CONNECTIONS 

*Green if output B is not used.

• Connector:
  • Single output (3 pin connector): 97-3102Al0SL-3P 
  • 2 or 3 outputs (6 pin connector): 97-3102A14S-6P

MECHANICAL

• Weight: 1.4 lb. (635 grams)
• Shaft Loading:
  • Radial: 25 lb. (11.3 kg.) max.
  • Axial: 10 lb. (6.8 kg.) max.
• Bearing Life (L₁₀): 70 x 106/RPM = hours
• Materials:
• Case: 1/4" Aluminum, anodized
• Shaft: 303 Stainless steel

PROGRAMS

The RH-P is preconfigured with one of the following programs. Others are available.

• 144AJ - One anti-jitter pulse output on A with selectable ppr (1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144).
• 240AJ - One anti-jitter pulse output on A with selectable ppr (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 48, 60, 80, 120, 240).
• 300AJQ - Quadrature anti-jitter pulse outputs on A and B with selectable ppr  (60, 75, 100, 120, 150, 300).

ACCESSORIES

• Measuring Wheels: Cast aluminum with 'Is" (10mm) wide urethane tire having a high coefficient of friction.

• Yoke Assembly (Y-1): Yoke, clevis pin and 1/4-28 mounting screw. Allows the encoder to pivot freely when fastened to a rigid cross member for mounting above the moving material
• Underbelt Mounting (MB-UB1): Call for information.
• Cable Assemblies:
  • C3-3-10: (for 1 output) 10 ft. (3m) shielded cable with 97-3106A10SL-3S connector.
  • C6-x-l0: (for 2 or 3 outputs) 10 ft. (3m) shielded cable with 97-3106A14S-6S connector (x is number of conductors).
  • Other lengths are available.
  • CE marking requires Photocraft cable, and surge protection option if the cable exceeds 100' (30m) or leaves the building.

Popular Models:

RH-P144AJ/8-30 IW
RH-P144AJ/8-30 M126
RH-P144AJ/8-30 M131
RH-P144AJ/8-30
RH-P144AJ/8-30 RC M202
RH-P1500AJB/8-30 M131
RH-P1500AJB/8-30
RH-P1500QB/8-30 M218
RH-P1500QB/8-30
RH-P192/8-30 M196
RH-P240AJ/8-30
RH-P240AJ/8-30 IW
RH-P240AJ/8-30 M131
RH-P240AJ/8-30 M148
RH-P240AJ/8-30
RH-P240AJ/8-30 RC
RH-P240Q/8-30
RH-P300AJQ/8-30C
RH-P600AJB/8-30
RH-P600AJB/8-30C
RH-P600AJB/8-30NP M131 RC
RH-P600AJB/8-30NP RC
RH-P64AJ/8-30 IW M131
RH-P64Q/5
RH-P64Q/8-30