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A20B-2002-0520

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A20B-2002-0520
May 22, 2026

A20B-2002-0520

Model: A20B-2002-0520 Type: Operator Panel I/O PCB Function: Control panel signal processing, MPG handwheel signal reception I/O Allocation: 48 input points, 32 output points Weight: Approx 0.7kg

Description

Technical Parameters

Rated voltage: DC 24V ±10%
Handwheel signal: A/B phase pulse input
Operating temperature: 0°C ~ 55°C
Humidity range: 10% - 90% RH, no condensation
Protection design: Overcurrent protection, signal isolation

Compatibility

Applicable CNC: FANUC 0i,15i,16i,18i,21i series
Matching accessories: Standard operation panel, electronic handwheel

Safety Rules

  1. Cut off total power before installation and removal.

  2. Use anti-static protection to avoid board damage.

  3. Forbid hot plugging of connecting wires.

  4. Keep away from severe vibration and oil dirt.

Installation Procedure

  1. Fully shut down machine power.

  2. Insert board into slot and tighten fixing screws.

  3. Connect flat cables and handwheel lines correctly.

  4. Confirm all connectors are securely locked.

  5. Power on and test all panel functions.

Maintenance

  1. Clean surface dust regularly.

  2. Examine connectors for looseness regularly.

  3. Periodically check internal fuses.

Fault Diagnosis

  1. Handwheel malfunction: Check power supply and interface wiring.

  2. Button failure: Inspect input circuit and contact condition.

  3. Unlit indicator: Check output loop and load connection.

  4. Communication error: Reinstall system connecting cables.


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