Okuma EPQ96‑2

Product Name: Electronic Potentiometer Module

Product Description: Digitally‑controlled electronic potentiometer, designed to replace traditional motor‑driven potentiometers for electronic speed governor control, supporting both manual and automatic operation modes.

Technical Specifications: Supply voltage 9‑31.2 V DC; analog output -10 V ~ +10 V or -20 mA ~ +20 mA; PWM output 0‑6 V at 500 Hz; digital inputs 18‑32 V DC; integrating time 2.5‑25 s or 12.5‑125 s; supports J1939 CAN bus communication; panel cut‑out Q96 mounting format.

Category:
Description

Functional Features: Manual‑auto mode switch; output signal offset adjustment; power‑fail memory retaining last output value or preset value; relay status indication output; converts J1939 bus telegram to analog or PWM control signal; fault‑triggered output isolation relay.

Application Scenarios: Marine generator set speed governing, engine governor control, industrial generator automation systems, distributed engine control systems supporting J1939 protocol.

Performance Parameters: Output impedance 500 Ω; short‑circuit protected analog outputs; operating temperature range ‑20 °C ~ +60 °C; LED status indicators for power, CAN communication, auto/manual mode and fault states.

Material Composition: ABS plastic front housing; metal rear mounting frame; gold‑plated copper terminal contacts; internal PCB with conformal coating for industrial environment resistance.

Structural Characteristics: 96 × 96 mm panel‑mount form factor; front‑panel push‑button operation; rear screw terminal blocks for wiring; DIN‑rail or panel mounting compatible structure.

Working Principle: Accepts digital up/down commands or J1939 bus commands, internally generates stable analog voltage/current or PWM signal via digital‑to‑analog conversion circuit for external speed governor reference input; relay logic switches between manual and automatic control paths.

Installation Requirements: Panel cut‑out for Q96 standard; secure rear terminal wiring with defined torque; maintain clearance for ventilation; separate power and signal wiring to reduce electromagnetic interference; ground the unit to system protective earth.

Usage Precautions: Operate within 9‑31.2 V DC supply range only; avoid conductive dust and high‑humidity non‑condensing environment; verify integrating‑time parameter matches governor dynamic response; do not apply AC voltage to signal terminals; perform power‑cycle test after parameter modification to confirm memory function works correctly.

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