Siemens SIMODRIVE 611 universal Function Manual page 616

6 Description of the Functions
6.16 Rotor position synchronization/rotor position identification
Parameter
overview
(refer to Chapter
A.1)
Limitations/
secondary
conditions
For the technique
based
on saturation
(P1075=1)
!
6-616
The following parameters are used for the rotor position synchroniza-
tion/rotor position identification:
S
P1011 IM configuration, actual value sensing
S
P1016 Angular commutation offset
S
P1017 Commissioning support
S
P1019 Current, rotor position identification
S
P1020 Maximum rotation, rotor position identification (SRM)
Maximum movement, rotor position identification (SLM)
S
P1075 Technique, rotor position identification (SRM, SLM)
S
P1076 Load moment of inertia RLI (SRM)
Load mass RLI (SLM)
The following diagnostics parameters are used rotor position synchro-
nization/rotor position identification:
S
P1734 Diagnostics, rotor position identification
S
P1736 Test, rotor position identification
S
P1737 Difference, rotor position identification
The following limitations/secondary conditions apply for the technique
based on both saturation and movement:
S
This technique can be used for both braked and non–braked mo-
tors.
S
The technique cannot be used for motors which are moving.
S
The current which is entered must be adequate in order to generate
a significant measuring signal.
S
The technique can only be started when the controller and pulses
are enabled as current must flow through the motor.
S
When using an absolute motor measuring system, the rotor position
identification can only be used to determine the commutation angle
offset (P1016).
S
The measurement and evaluation take approx. 250 ms.
Warning
hen the motors are not braked, the motor rotates or moves as a
W
result of the current impressed during the measurement. The
magnitude of the motion depends on the magnitude of the current and
the moment of inertia of the motor and load.
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
E Siemens AG 2005 All Rights Reserved
08.02