The Omron H8PS-8B, also cataloged as the H8PS Cam Positioner, operates as a dedicated hardware component for rotary shaft angle processing and output switching within automated machinery control loops.

Model Suffix Configuration

• H8PS: Base product family identifier for electronic cam positioner controllers.
• 8: Denotes 8-point discrete NPN transistor output channel capacity.
• B: Indicates DIN panel-mount enclosure construction (96 x 96 mm form factor) with integrated backlit LCD screen.

Technical Performance Matrix

Industrial Controller Bus Integration and Processing Execution

Hardware decoding circuitry converts absolute encoder angle inputs directly into real-time angle comparisons. Direct signal paths preserve response speeds to prevent signal delay during high-speed shaft rotation. The controller maintains backplane bus communication velocity Licences across connected I/O networks while guaranteeing firmware flash compatibility for persistent cam pattern storage during complete power loss.

Package Component List

• 1 x Omron H8PS-8B Cam Positioner Unit
• 1 x Panel Mounting Adapter Kit
• 1 x Terminal Cover Assembly
• 1 x Rubber Waterproof Sealing Gasket

Field Mounting and Wiring Protocols

Enclosure Cutout and Mounting

Prepare a standard 1/4 DIN (92 x 92 mm) square cutout on the control cabinet door. Slide the unit through the front opening with the rubber gasket fitted to preserve front panel IP protection ratings, then secure the rear side clamps.

Encoder Connection and Direction Switch

Wire the dedicated absolute encoder cable to the rear terminals. Set the internal DIP switch to match the mechanical machine rotation: forward (CW) or reverse (CCW) signal decoding.

Power Supply and Output Wiring

Connect the 20.4-26.4 VAC power leads to the designated AC input terminals. Wire the 8 NPN open-collector transistor outputs to external PLC inputs or relay coils using shielded twisted-pair cables with proper earth grounding.

Technical FAQ

• How is the encoder rotation direction switched on the hardware level?

  An onboard DIP switch toggles the internal counting logic between Clockwise (CW) and Counter-Clockwise (CCW) phase evaluation without requiring physical wiring changes.

• Does the H8PS-8B retain its cam angle settings when power is interrupted?

  Internal EEPROM memory holds all configured ON/OFF angle switch points permanently without requiring back-up battery power.

• Can NPN outputs directly drive inductive relay coils?

  The NPN transistor outputs can switch inductive loads provided flyback diode suppression is installed across the load coils to absorb voltage spikes.

• What happens if the absolute encoder cable is disconnected during operation?

  The controller detects missing encoder signal pulses, immediately de-energizes all 8 transistor outputs, and displays an encoder error code on the LCD.

• Is hot-swapping the encoder connector permitted while AC power is applied?

  Disconnecting or reconnecting the encoder while powered risks damaging internal logic circuits and causing false output triggering on connected equipment.

• How should the encoder cable shield be terminated to avoid signal noise?

  Ground the cable shield braid at the positioner Functional Ground (FG) terminal only to prevent ground loop currents from corrupting absolute angle data.

• What mounting clearance is required for panel-mounted units?

  Maintain a minimum of 30 mm vertical and horizontal clearance around the housing to ensure adequate ambient heat dissipation inside the cabinet.

• What voltage range can be applied to the AC supply terminals?

  The power circuit accepts 20.4 to 26.4 VAC; applying voltages outside this range triggers internal protection circuits or causes improper logic operations.