Siemens SINUMERIK 840DE sl Commissioning Manual page 173

10.3.10 Clamping system: Clamping time statistics
This window displays the statistics for the determined clamping times.
Statistical data
Last determined clamping time
Reference clamping time (with tool)
● Minimum
● Maximum
● Mean
Mean clamping time (without tool)
● 24 h
● 10 days
● 100 days
If a Power On of the SMI24 is performed during the start-up phase, the previously determined
values are discarded. The counter for the first 100 clamping operations is set to zero and the
reference times up to the 100th clamping operation can be determined again. After the start-
up phase (first 100 clamping operations), the values of the reference clamping time are
"frozen". Even after a Power On of the SMI24, the values remain stored and can no longer be
changed.
10.3.11 Fetching the logistics data
Requirement
The spindle characteristics can only be read out with the "Service" access level.
Spindle characteristics
The following spindle manufacturer characteristics can be read out via DRIVE-CLiQ:
● Manufacturer's identifier
● Drawing number
SINUMERIK Operate (IM9)
Commissioning Manual, 12/2017, 6FC5397-1DP40-6BA1
Meaning
Measured time for the last performed clamping operation.
Definition of a clamping operation: "Released" clamping state
[3] → "Clamped with tool" clamping state [7 or 8]. Clamping state
3 = Released; clamping state 7 = Clamped with tool and S4 = 0
(No); clamping state 8 = Clamped with tool and S4 = 1 (Yes)
During the spindle start-up phase, the first 100 clamping opera‐
tions are measured by the SMI24 and the minimum value, max‐
imum value and the mean value determined.
The shortest clamping time determined from the first maximum
100 clamping operations.
The longest clamping time determined from the first maximum
100 clamping operations.
The mean clamping time determined from the first maximum
100 clamping operations.
After the first 100 clamping times determined for the reference
time, the mean values for the other measured clamping times
are calculated.
Mean clamping time of the clamping cycles determined in the
last 24 hours.
Mean clamping time of the clamping cycles determined in the
last 10 days.
Mean clamping time of the clamping cycles determined in the
last 100 days.
Spindle functions
10.3 Spindle diagnostics
159