APM
All alarm codes
ALARM 354

USER alarm #354 (Coil F154 on PLC LADDER)

User-defined alarm wired to PLC ladder coil F154 — typically a missing condition (set-up switch, door, or option not enabled).

Controls
SmoothG
Machine series
unspecified — uses RB-series PLC parameters

Causes

  1. User-defined alarm wired to PLC ladder coil F154 — typically a missing condition (set-up switch, door, or option not enabled).

    • Fabian Achavalyoutube
      Mazatrol SmoothG: How to troubleshoot a USER alarm #354 (Coil F154) on the PLC LADDER

How to clear it

  1. 1

    Open the PLC LADDER, locate coil F154, trace its rung backwards to find the missing input or condition.

  2. 2

    Where the alarm is gated by an option that should be enabled, set the relevant RB-series PLC parameter (e.g. RB30.3 on Matrix Nexus) to enable the function.

Confidence: high · Cross-referenced on the same author's Matrix Nexus channel (sY1S2Z6o9o4) for the identical alarm 354 / Coil F154 / RB30.3 PLC parameter combination — 2 videos confirm the same fix path across two control versions.

First sourced: 5/21/2026

Related alarms

Same control or a nearby code on the same machine.