Sinumerik Alarm 4070 Normalizing machine data has been altered
The control uses internal physical units (mm, degrees, s, for paths, velocities, acceleration, etc.).During programming or data storage, some of these values are input and output using different units (rev./min, m/s2, etc.).The conversion is carried out with the scaling factors that can be entered (system-specificMD array 10230 SCALING_FACTORS USER_DEF[n] (n … index number 0 – 10), when the corresponding masking bit is set to “1”.If the masking bit is set to “0” then scaling takes place with the internal standard factors.
The following machine data influence the scaling of other MDs:
• 10220: SCALING_USER_DEF_MASK
• 10230: SCALING_FACTORS_USER_DEF
• 10240: SCALING_SYSTEM_IS_METRIC
• 10250: SCALING_VALUE_INCH
• 30300: IS_ROT_AX
If these data are modified, the NCK must be powered up again.Only then will the input of dependent data be performed correctly.
– Alarm display.
Please inform the authorized personnel/service department.If the alarm has been displayed after downloading an MD file which is consistent within itself, then the download operation must be repeated with a new NCK power-up.(The file contains scaling-dependent machine data in front of the scaling factors).
Clear alarm with the Delete key or NC START.
- Siemens Diagnostics Guide by Siemens