Siemens SINUMERIK 840C - Manual (Page 463)

7 Drive Machine Data (SIMODRIVE Drive MD) 12.93
7.2.2 FDD MD (data description - SW 3)
Monitoring cycle 1002
Default value Lower input limit Upper input limit Units
100 000 4 000 100 000 µ s
Active on
Power On
The interrupt clock cycle is used for high-priority monitoring purposes. Note: The input value
for the clock cycle must be a whole multiple of 4 ms (parameterization error).
m x 4000 µ s m=1, 2, 3, ..., 25
Note:
The interrupt level must not be exceeded otherwise the drive will be tripped.
No. encoder marks motor measuring system 1005
Default value Lower input limit Upper input limit Units
2 048 128 8 192 Incr/rev
Active on
Power On
Input of number of encoder increments per motor revolution of the motor measuring system.
Note:
The indirect measuring system must always be configured for FDD/MSD.
Frequency pulse-width modulation 1100
Default value Lower input limit Upper input limit Units
3 200 2 000 8 000 Hz
Active on
Power On
The frequency of the sampling triangle in the PWM inverter is defined in this machine data.
The frequency values are set as an MMC function (see attached table).
Value table:
f
PBM
in Hz T
PBM
in µ s
2000 500.0*
2064.5.... 484.375
2133.3.... 468.75
2206.8.... 453.125
2285.7.... 437.5*
2370.3.... 421.875
2461.5.... 406.25
2560 390.625
_______
* A preselection with synchronous sampling period (TPWM) with respect to the controller cycles can be made
via the toggle button.
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SINUMERIK 840C (IA)