Siemens SINUMERIK 840C - Manual (Page 583)

7 Drive Machine Data (SIMODRIVE Drive MD) 07.97
7.4.2 Servo service data (SSD)
Quadrant error (QEC – as from SW 4) 3002
Default value Lower output limit Upper output limit Units
– -99999.999 99999.999 mm/ms
Active
at once
This machine data displays the quadrant error plane at the instant at which the appropriate axis
executed the last speed zero crossing when quadrant error compensation (QEC) is active. The
display is called by means of softkey Service QEC in the "Circularity test" menu.
Note:
This machine data is effective only if one of the two quadrant error compensation modes is
active.
Duration of measurement (QEC – as from SW 4) 3003
Default value Lower output limit Upper output limit Units
– -99999999 99999999 ms
Active
at once
This machine data displays the error measurement time at the instant at which the appropriate
axis executed the last speed zero crossing. The display is called by means of softkey Service
QEC in the "Circularity test" menu.
Note:
This machine data is effective only if one of the two quadrant error compensation modes is
active.
7.4.3 Diagnosis/service MD (data description - as from SW 3)
Drive configuration (as from SW 4)
10000-
10014
10029
1)
Default value Lower output limit Upper output limit Units
0000 0000 FFFF Hex
Active on
Power on
The "Drive configuration" machine data contains the descriptive information for a drive module
which is actually installed. In the case of a two-axis module, the data contains two sets of
information. Machine data 10000 to 10014 are assigned to physical addresses 1 to 15.
Bits 0 - 7 Drive number: These bits assign the physical drive address to the logical
drive number (1 - 15) for digital drives.
Bit 8 Active identifier: 0 ˆ = positive (no machine data required)
1 ˆ = active (used as control axis/machine data
required)
Bits 9 - 11 Module type: 000 ˆ = Single-axis module (1)
010 ˆ = Two-axis module (left - 2L)
011 ˆ = Two-axis module (right - 2R)
Bit 12 Drive type: 0 ˆ = FDD
1 ˆ = MSD
1) As from SW 5
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SINUMERIK 840C (IA)