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7-16 SIEMENS AG 6RX1700-0AD76
SIMOREG DC Master Operating Instructions
9
Checking and possible fine adjustment of maximum speed
After the optimization runs have been executed, the maximum speed must be checked and its setting
corrected if necessary.
If it is necessary to change the maximum speed setting by more than about 10%, the control response
of the speed control loop must be checked. It may be necessary to repeat the speed controller
optimization run or re-optimize the controller manually.
The optimization runs for field weakening and friction motor and moment of inertial compensation must
be repeated every time the maximum speed setting is altered.
10 Checking the drive settings
The optimization runs do not provide optimum results for every application. The controller settings
must therefore be checked by suitable means (oscilloscope, SIMOVIS Trace etc.). In some cases,
manual re-optimization will be necessary.
11 Manual (post-)optimization (if necessary)
Precontrol and current controller for armature and field
Instructions on how to manually set parameters for the precontrol function can be found in Section 7.2
“Manual optimization”.
Speed controller
P200 Actual speed filtering
P225 Speed controller P gain
P226 Speed controller integration time
P227 Speed controller droop
P228 Speed setpoint filtering
Note:
P228 is set to the same value as P226 (speed controller integration time) during the speed controller
optimization run (P051=26) (for the purpose of achieving an optimum control response to abrupt
setpoint changes). When the ramp-function generator is used, it may be better to parameterize a lower
speed setpoint filtering value (P228).
Setting of empirical values or optimization using setpoint control boxes according to generally
applicable optimization guidelines.
EMF controller
P275 EMF controller P gain
P276 EMF controller integration time
Setting of empirical values or optimization using setpoint control boxes according to generally
applicable optimization guidelines.
12 Setting of supplementary functions
E.g. activation of additional monitoring functions
NOTE
Freely assignable function blocks are enabled in parameter U977.
For enabling instructions, please refer to Section 11, Parameter List, description of parameters
U977 and n978.
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