Drive Setting According To Process-Related Boundary Conditions - Siemens Vector Control Operating Instructions Manual

05.2006
9.5.1

Drive setting according to process-related boundary conditions

Siemens AG 6SE7087-2JD60
SIMOVERT MASTERDRIVES
In order to support start-up, process-related characteristics can be
entered in P114. In a subsequent automatic parameterization
(P115 = 1) or motor identification (P115 = 2, 3) and controller
optimization (P115 = 3, 5), parameter adjustments are made in the
closed-loop control which are advantageous for the selected case, as
experience has shown.
The parameter adjustments can be taken from the following table. The
table clearly shows which parameters have a decisive influence on the
closed-loop control. The values themselves are understood to be
qualitative values and can be further adjusted according to the process-
related requirements.
If the type of process-related boundary conditions is not evident in the
current case (e.g. high smooth running characteristics at low speeds
with simultaneously fast acceleration processes), the parameter
settings can also be combined (manually). In any case, it is always
sensible to perform start-up with the standard setting in order to then
set the indicated parameters one after the other.
The settings of P114 = 2...4 are only possible if no gearless conditions
are present.
P114 = 0: Standard drive (e.g. pumps, fans)
1: Torsion, gear play and large moments of inertia
(e.g. paper machines)
2: Acceleration drives with constant inertia
(e.g. shears)
3: High load surge requirements
(in the case of f-control only possible from approx.
20%fmot,n)
4: High smooth running characteristics at low speeds
(in the case of n-control; with a high encoder pulse
numberl)
5: Efficiency optimization at partial load by flux reduction
(low dynamic loading drives)
6: High start-up torque (heavy-duty start-up)
7: Dynamic torque response in the field-weakening range
(e.g. motor test beds)
Operating Instructions
Parameterizing Steps
9-65