Description
The Fanuc A20B-2004-0740 is the I/O PCB fitted inside the Fanuc Machine Operator's Panel (MOP). It reads the panel's push-button keys and selector switches, drives the key LEDs, and passes the signals to the CNC over the Fanuc I/O Link, so the operator panel can control mode selection, feed and spindle override, jog, cycle start and similar machine functions. Available at JJ Automation new and as tested used / refurbished units, 100% checked before dispatch.
When to replace
Replace this board when operator panel keys or LEDs stop responding, when an I/O Link communication alarm points to the operator panel, or after a board fault, water ingress or power surge on the panel.
Details
| Part Number | A20B-2004-0740 |
| Type | Machine Operator Panel (MOP) I/O PCB |
| Brand | Fanuc |
| Interface | Fanuc I/O Link to the CNC |
| Application | Fanuc main / sub operator panels on VMC, HMC and turning centres |
| Condition | New & Used / Refurbished (select above) |
✓ 100% tested ✓ Warranty ✓ Pan-India shipping ✓ Repair & exchange available
Not sure this is the right board? Send us the number printed on your PCB or the ordering number on your operator panel label and we will confirm compatibility.
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Call or WhatsApp +91 88022 12394 — we ship across India and worldwide. Repair and exchange options are also available for Fanuc operator panels and I/O boards.