Siemens SINUMERIK 840C Installation Instructions Manual page 463

7 Drive Machine Data (SIMODRIVE Drive MD)
7.2.2 FDD MD (data description - SW 3)
1002
Default value
100 000
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 µs m=1, 2, 3, ..., 25
Note:
The interrupt level must not be exceeded otherwise the drive will be tripped.
1005
No. encoder marks motor measuring system
Default value
2 048
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.
1100
Default value
3 200
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 in Hz
PBM
2000
2064.5....
2133.3....
2206.8....
2285.7....
2370.3....
2461.5....
2560
_______
* A preselection with synchronous sampling period (TPWM) with respect to the controller cycles can be made
via the toggle button.
7–48
Monitoring cycle
Lower input limit Upper input limit
4 000
Lower input limit Upper input limit
128
Frequency pulse-width modulation
Lower input limit Upper input limit
2 000
T in µs
PBM
500.0*
484.375
468.75
453.125
437.5*
421.875
406.25
390.625
©
Siemens AG 1992 All Rights Reserved
Units
100 000
Units
8 192 Incr/rev
Units
8 000
6FC5197- AA50
SINUMERIK 840C (IA)
12.93
Active on
Power On
µs
Active on
Power On
Active on
Power On
Hz