Siemens simovert masterdrives Compendium

Communication / SIMOLINK 12.2010
6SE7087-6QX70 (Version AM) Siemens AG
8.3-16 Compendium Motion Control SIMOVERT MASTERDRIVES
♦ r750: SLB receive data
In indices 1 to 16, the received data word 1 to 16 are displayed.
♦ r752: SLB transmit data
In indices 1 to 16, the received data word 1 to 16 (corresponds to
channel 1 to 8) are displayed.
8.3.7 Synchronization of the control circuits by means of the bus cycle
time (MC only)
The bus cycle time must be in a defined proportion to the time slots of
the individual closed-loop control units in order to synchronize the
decentralized lower-level control loops in the converters. The following
applies to the time slots in the case of MASTERDRIVES MC:
♦ Current control in time slot T
0
♦ Speed control from V1.30 in time slot T
1
= 2 T
0
from
V2.00
in time slot T
0
♦ Position control in time slot T
3
= 8 T
0
♦ Synchronism T
3
= 8 T
0
or T
4
= 16 T
0
♦ The time slot T
0
= 1/pulse frequency is set on the MASTERDRIVES
MC by selecting the pulse frequency (P340).
Thus the following applies to the selection of the bus cycle time:
Bus cycle time P746 = 1 / P340 * 2
n
n = slowest time slot to be synchronized T
n
;
where n ∈ N = {2, 3, ...}
T
2
can be synchronized as a minimum. Individual synchronization
of T
0
or T
1
cannot be implemented.
♦ Example:
If the position control loops of the various converters have to be
synchronized to each other, the selected bus cycle time has to be a
2
n
-fold quantity of 4 T
0
. At a pulse frequency of P340 = 5.0 kHz the
resulting bus cycle time P746 is at least 0.80 ms (4 * 200 µs).
Standard
parameterization

Siemens simovert masterdrives Specifications

General

Brand	Siemens
Model	simovert masterdrives
Category	DC Drives
Language	English