6
6.11 Motor changeover for induction motors (from SW 2.4)
6-585
Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
Reader’s note
Input signals: refer under the index entry ”Input signal...”
Output signals: refer under the index entry ”Output signal ...”
The wiring of the input/output terminals for the control board and for
the optional TERMINAL module is described in Chapter 2.2.
The following input/output terminals are available:
– for the control board:
I0.x to I3.x or O0.x to O3.x
x: Space retainer for drive A or B
– for the optional TERMINAL module: I4 to I11 or O4 to O11
The parameterization of the input/output terminals is described as
follows:
– for the control board:
in Chapter 6.4.2 and 6.4.5
– for the optional TERMINAL module: in Chapter 6.5
A dedicated power module pulse frequency (P1100) can be parameteri-
zed for each motor data set.
The speed requirement of the motor can be better adapted by changing
over the pulse frequency. With a higher pulse frequency, higher speeds
can be achieved.
The following applies for the pulse frequency, it must have at least
approx. 6 the frequency of the instantaneous motor frequency.
High pulse frequencies mean high switching losses and therefore poor
utilization.
At a pulse frequency of 8 kHz, only 40–55% of the possible current that
is available at 3.2 kHz is available.
Pulse frequency
changeover
6 Description of the Functions
01.99
04.99
! not 611ue !
