Siemens SINAMICS S120 Function Manual page 99

Note
If a ramp-up/ramp-down time or one direction of rotation limit is activated, parts of
the motor data identification routine cannot be carried-out. For other parts of the
motor data identification routine, the accuracy of the results is diminished because
a ramp-up/ramp-down time is selected. If possible, p1958 should be 0 and no
direction of rotation limit selected (p1959.14 = 1 and p1959.15 = 1).
Danger
!
The stationary MotID can result in slight movement of up to 210 degrees electrical.
For the rotating motor data identification routine, motor motion is initiated, which
can reach the maximum speed (p1082) and the motor torque corresponding to the
maximum current (p0640).
The rotating measurement should be carried-out with a motor running at no load
(de-coupled from the mechanical system) in order to previous damage/destruction
to the load or be influenced by the load. If the motor cannot be de-coupled from
the mechanical system, then the stress on the mechanical system can be reduced
by parameterizing the ramp-up time (p1958) and/or using a speed limit (p1959.14/
p1959.15) or using the current and speed limit.
If there is a mechanical distance limit, we recommend that the rotating
measurement is not carried-out.
The EMERGENCY SWITCHING-OFF functions must be completely functional
when commissioning the system.
All of the relevant safety regulations must be carefully observed in order to exclude
any danger for man and machine.
© Siemens AG 2006 All Rights Reserved
SINAMICS S120 Function Manual, 03/2006 Edition
Operating Modes
Servo control
3-99