Siemens SINUMERIK 840Di Diagnostic Manual page 836

List of Action Numbers
No. 24
Explanation Start program processing (VDI signal: NC Start).
Cause 1. Program status active
2. An alarm reaction is pending which prevents a start or forces braking
3. Reference point approach has not been performed yet.
− Execute condition for clearing alarm
Remedy
− Reference point approach
No. 25
Explanation Start program processing (channel communication, NC block: Start).
Cause 1. Program status active.
2. An alarm reaction is pending which prevents a start or forces braking
3. Reference point approach has not been performed yet.
4. An incorrect operating mode has been selected. (only Automatic).
− Protect Start with WAITE
Remedy
− Execute condition for clearing alarm
− Reference point approach
− Select program operating mode
No. 26
Explanation Start continuation of program processing (VDI signal: NC Start).
Cause 1. Program status active
2. An alarm reaction is pending which prevents a start or forces braking
3. Reference point approach has not been performed yet.
− Execute condition for clearing alarm.
Remedy
− Reference point approach
No. 27
Explanation Start continuation of the selected process (JOG, reference point or digitizing) (VDI sig-
nal: NC Start).
Cause 1. Jog motion active
2. An alarm reaction is pending which prevents a start or forces braking
Remedy Execute condition for clearing alarm
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© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006