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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 26244 - Block : Protection area , referred to in $NP_ADD[ ], is already
A closed definition chain was found, i.e. a protection area element contains the protection area of which it is a part Control reaction: Correction block is reorganized. Interface signals are set. Alarm display.
26244
Siemens 26244 - Block : Protection area , referred to in $NP_ADD[ ], is already
Block: Protection area, referred to in $NP_ADD, is already
A closed definition chain was found, i.e. a protection area element contains the protection area of which it is a part 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
- A closed definition chain was found, i.e. a protection area element contains the protection area of which it is a part
Troubleshooting Steps
- 1Change definition of the protection area or delete protection area.
- 2Clear alarm with NC START or RESET key and continue the program. Continuation: Alarms
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Always verify with your machine manual or a certified technician before performing service procedures.