Siemens Simovert Masterdrives Compendium page 188

08.2012
6.2.4.2 No-load measurement
WARNING
DANGER
6.2.5 Function adjustment
Siemens AG 6SE7087-6QX70 (Version AN)
SIMOVERT MASTERDRIVES
From version 2.30 onwards, a no-load measurement for asynchronous
motors is available.
In order to perform this measurement, the motor shaft must not be
connected to any mechanical loads as this would distort the
measurement results.
For Siemens asynchronous motors (P095 = 1) first of all the motor type
is selected in P097. For motors of other makes (P095 = 4) the rating
plate data and the pole pair number have to be entered and then
automatic parameterization has to be called up with P115 = 1. After
leaving the "Drive initial start-up" state with P060 = 1 the unit achieves
the „Ready for start-up" state (r001 = 009).
Now P115 = 4 is set and hence the no-load measurement is selected.
The converter must now be switched in within 30 seconds so that the
measurement can run. During these 30 s alarm A078 is set.
The motor shaft turns during the measurement. The motor cables are
live. Voltages are present at the converter output terminals and hence
also at the motor terminals; they are therefore hazardous to touch.
It must be ensured that no danger for persons and equipment can
occur by energizing the power and the unit and as a result of the
moving motor shaft.
If the measurement is not started within 30 s or it is interrupted with an
OFF command, fault F114 is output. The converter status during the
measurement is "Motid-Opt" (R001 = 19). The measurement is ended
automatically, the converter returns to the "Ready for start-up" status
(r001=009).
Once the description of the hardware has been completed, function
adjustment has to take place. The function blocks available in the unit
are selected, interconnected and adjusted to suit the specific
application. Parameterization is carried out in the parameter menu. The
function diagrams serve as a basis for the function adjustment. Please
refer to the parameter list for more detailed information on the individual
parameters. The interconnectable binectors and connectors are listed
in the relevant binector and connector lists.
The indicated lists are attached hereto.
Compendium Motion Control
Parameterizing Steps
6-23