ALARM 354

Cond.Missing (Set Up Switch)

Missing condition signal — PLC ladder coil F154 is not satisfied. On Matrix Nexus, controlled by PLC parameter RB30.3.

Controls: Mazatrol Matrix Nexus
Machine series: unspecified Matrix Nexus equipped lathe

Causes

Missing condition signal — PLC ladder coil F154 is not satisfied. On Matrix Nexus, controlled by PLC parameter RB30.3.
- Fabian Achavalyoutube
  #354 Cond.Missing (Set Up Switch). Coil F154 on the PLC LADDER .PLC Parameter RB30.3

How to clear it

1
Open PLC LADDER, find coil F154, identify the failing input. If the Set Up Switch / option is intentionally disabled, enable parameter RB30.3 to bypass.
- Fabian Achavalyoutube
  How to troubleshoot user alarm on PLC LADDER. How to enable PLC Parameter

Confidence: high · Dedicated walkthrough naming the exact coil (F154) and parameter (RB30.3); same author has the matching SmoothG case (8baKwX85K58).

First sourced: 5/21/2026