Code 700138: Manual pulse generator not plugged in
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Manual pulse generator not plugged in 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 key in the „Manual pulse generator“ control panel has been activated, but the manual pulse generator is not inserted. The message appears as a tip. 1. Plug in manual pulse generator. 2. Switch off manual pulse generator. „Manual pulse generator inserted“ is identified as soon as a PLC input of the selector switches (axis / INC ) on the manual pulse generator signals signal status (1). Error messages General Manual pulse generator not plugged in
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 700138 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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