FANUC Alarm ARC-143 — Power supply/feeder com alarm(E:…)
Manufacturer wording — Power supply/feeder com alarm(E:%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC ARC-143 (“Power supply/feeder com alarm(E:…)”): In the power supply, the communication between the operation board and the control board was disconnected. First check: 1. Check the fuses [For feeder: 3A(FU2)/8A(FU3)].
Updated 2026-09-17 · LogrobotLM reference
Description
In the power supply, the communication between the operation board and the control board was disconnected.
Remedy
1. Check the fuses [For feeder: 3A(FU2)/8A(FU3)]. If the fuses were blown, please perform the following remedy.
Related codes
Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →