Siemens alarm 2140: The actual service switch position forces the SRAM to be cleared at the next Power On (general reset active)
SINUMERIK 808D alarm · Siemens 808D
What it means
The initialization (service) switch on the PPU is set to overall reset, so the complete NC data memory will be wiped at the next power-up. The alarm warns that all machine data will be lost unless the switch is returned to normal operation before restarting.
Likely causes
- Service/init switch left in general-reset position after maintenance or data recovery
- Switch mechanically loose or faulty
Need the part urgently?
Send us alarm 2140 with your machine details — typical RFQ turnaround is 24–48h.