Siemens SINUMERIK 840D sl Series Diagnostics Manual page 408

Overview of Alarms
• 2. The values entered in MD $MA_SAFE_POS_LIMIT_PLUS and
$MA_SAFE_POS_LIMIT_MINUS have been interchanged. The upper limit is less than or
equal to the lower limit.
• 3. For an axis with safety functions, the setpoint/actual channel assignment in MD
$MA_SAFE_ENC_SEGMENT_NR, MD $MA_CTRLOUT_SEGMENT_NR was not made
on the drive bus. No module number was stated for a setpoint/actual value assignment in
MD $MA_CTRLOUT_MODULE_NR, MD $MA_SAFE_ENC_MODULE_NR.
• 4. The number of drives has changed. On reading back the standstill position and the
associated drive number, a difference has been found to the current drive configuration.
• 5. A safety function has been enabled in MD $MA_SAFE_FUNCTION_ENABLE without
the safety functions SBH/SG having been enabled.
• 6. Error on parameterizing the input/output settings for the SGEs/SGAs.
• 7. A zero has been entered in MD $MA_SAFE_ENC_GRID_POINT_DIST.
• 8. A zero has been entered in MD $MA_SAFE_ENC_RESOL .
• 9. In MD $MA_IS_ROT_AX and MD $MA_SAFE_IS_ROT_AX , different settings have
been made.
• 10. A non-existing measuring circuit has been parameterized in MD
$MA_SAFE_ENC_INPUT_NR.
• 11. In MD $MA_SAFE_ENC_MODULE_NR, the number of a drive has been entered
that either does not exist or has been detected as inactive. With an inactive drive, MD
$MA_SAFE_ENC_TYPE was not reset to 0.
• 12. In MD $MA_SAFE_ENC_TYPE, an encoder type has been parameterized not
matching the physically present type.
• 13. In MD $MA_SAFE_ENC_TYPE, an incorrect encoder type has been entered for an
active drive ($MA_SAFE_ENC_TYPE = 0, 2, 3 or 5).
• 14. When setting the parameters for the motor encoder in MD
$MA_SAFE_ENC_INPUT_NR, the measuring circuit for the 2nd measuring system is
also used to ensure double-redundancy. The 2nd measuring circuit of this drive module
has also been parameterized in the data of another axis, therefore there is a dual assign-
ment. The 2nd measuring circuit connection cannot be used for the actual value acquisi-
tion in this parameterization.
• 15. In MD $MA_SAFE_POS_TOL a value greater than 10mm was entered for a linear
axis.
• 16. In MD $MA_SAFE_REFP_POS_TOL, a value greater than 1mm was entered for a
linear axis.
• 17. The limit values for the "n<n_x" monitoring, calculated from MD
$MA_SAFE_VELO_X and MD $MA_SAFE_POS_TOL, are of equal size.
• 18. One of the activated cam positions is outside the actual value modulo range.
• 19. The parameterized cam modulo range MD $MA_SAFE_MODULO_RANGE is not a
multiple integer of 360 degrees.
• 20. The parameterized cam modulo range MD $MA_SAFE_MODULO_RANGE and the
modulo range in MD $MA_MODULO_RANGE cannot be divided as integers into one
another.
• 21. The "Actual value synchronization two-encoder system" function (slippage) is
selected for a single-encoder system, or a function with an absolute reference (SE/SN) is
active at the same time.
• 22. Alarms 27000/300950 should be suppressed for parking (MD
$MA_SAFE_PARK_ALARM_SUPPRESS!=0). The SGA "Axis safely referenced" must be
configured in MD $MA_SAFE_REFP_STATUS_OUTPUT.
• 23. An axial SGE/SGA was configured at the SPL interface (segment number = 4) and
the function enable for the external stops (MD $MA_SAFE_FUNCTION_ENABLE, bit6) is
missing.
• 24. An axial SGE/SGA was parameterized at the SPL interface (segment number = 4)
and the SGE "Deselect ext. Stop A" (assignment via MD
2-408
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005