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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 26246 - Block : Parameter $NP_PARA[ , ] is invalid
An invalid parameter value to define a protection area element was indicated. Parameter values must not be negative Control reaction: Correction block is reorganized. Interface signals are set. Alarm display.
26246
Siemens 26246 - Block : Parameter $NP_PARA[ , ] is invalid
Block: Parameter $NP_PARA[,] is invalid
An invalid parameter value to define a protection area element was indicated. Parameter values must not be negative Control reaction: Correction block is reorganized. Interface signals are set. Alarm display.
Safety
- Only qualified personnel should diagnose and clear control alarms; follow the machine builder's safety procedures and lockout/tagout where hardware work is required.
Common Causes
- An invalid parameter value to define a protection area element was indicated.
- Parameter values must not be negative
Troubleshooting Steps
- 1Indicate valid parameter value.
- 2Clear alarm with NC START or RESET key and continue the program
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Always verify with your machine manual or a certified technician before performing service procedures.