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HOME ⊙ Fanuc ⊙ FANUC 16i/18i/21i hardware connection and troubleshooting
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FANUC 16i/18i/21i hardware connection and troubleshooting

来源: | 作者:FAN | 发布时间 :2026-05-06 | 13 次浏览: | 🔊 Click to read aloud ❚❚ ▶ | Share:

Environmental inspection: Control the temperature (0-55 ℃), humidity (10-75% without condensation), and presence of corrosive gases inside the cabinet.

Power check: Measure whether the 24V input voltage remains between 21.6-26.4V during load changes.

Battery status: Monitor the "BAT" alarm through the diagnostic screen and replace it in advance.

Grounding system: Check whether the PE and SG terminals are corroded, and whether the shielding clip is secure.

Fan and ventilation: Confirm that the control unit fan is operating normally and the ventilation holes are not blocked.

When a malfunction occurs, please follow the principle of "first check the light, then check the code, and finally measure the line". Use the diagnostic screen (DGN) of CNC to read error codes (such as D9008 displaying 22, 31, 32, etc.), and quickly locate specific modules or circuits based on relevant manuals. Through standardized installation and maintenance, this classic CNC system can still reliably serve modern production lines.

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