7
7.4 Commissioning functions
7-720
Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
Table 7-6 Parameters for the function generator, continued
Parameters
No. EffectiveUnitsMax.Stan-
dard
Min.Description
1813 Start–up function, ramp–up time at
P1400
(only for P1804 = 2, 3
––> closed speed control loop)
0.0 32.0 100 000.0 ms Immedi-
ately
... specifies the time in which the drive accelerates or decelerates (brakes) to the required
speed. In this case, the parameter refers to P1400 (rated speed).
P1813 =
P1400
required speed
required ramp–up time
The following applies:
Example:
Rated speed n
rated
= 3000 RPM (P1400)
The drive should accelerate up to 500 RPM in 20 ms
––> P1813 = (3000 / 500) 20 ms = 120 ms
Additional waveforms are available using the appropriate parameteriza-
tion.
Example:
For the ”triangular” waveform, a triangular waveform without peak is
obtained by appropriately parameterizing the limit.
Limiting
Waveform,
triangular
Fig. 7-5 ”Triangular” waveforms with no peak
Additional
waveforms
7 Fault Handling/Diagnostics
To Next Page
Loading...
