Code 700054: Prepare for pm
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Prepare for pm alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
The preliminary warning limit of a maintenance cycle has been reached. The required maintenance is displayed in the "mainten.cycles" diagnostic menu. The operating message is displayed on the screen, but the machine continues working without restriction. Optional: The „white“ signal display now flashes continuously. (Cycle: ON = 0.4 sec / pause = 2 sec) These displays remain visible until the completion of maintenance is acknowledged. Error messages Maintenance Prepare for pm Check which maintenance is due in the "Mainten.cycles" diagnostic menu. The "hours display" of the pending maintenance cycle is shown inverted. Make preparations for the maintenance that has to be done. Carry out maintenance soon and confirm. If the maintenance is not done during the pre-warning time and confirmed, unlimited machine operation is no longer possible.
Source: CHIRON Error Message Overview, all series (Siemens control, V2.0.6, 2012)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Chiron Siemens-Control CNC Alarms
Chiron controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 700054 on the Siemens-Control CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Chiron's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 545 Chiron Siemens-Control CNC codes.
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