Siemens simovert masterdrives

12.2010 Communication / SIMOLINK
Siemens AG 6SE7087-6QX70 (Version AM)
SIMOVERT MASTERDRIVES Compendium Motion Control 8.3-21
8.3.11 Configuration (example of peer-to-peer functionality)
Angular synchronism with 3 MASTERDRIVES MC units.
M
~
MASTER
DRIVES
MC
M
~
MASTER
DRIVES
MC
M
~
MASTER
DRIVES
MC
24 Volt
Dispatcher
Transceiver Transceiver
Drive 1
Drive 2
Drive 3
Fig. 8.3-7 Configuration example of peer-to-peer functionality
♦ Drive 1, master drive with integrated virtual master axis
The master speed setpoint for the drive group is specified via an
analog input or via the PROFIBUS DP.
The integrated virtual master axis function generates a position,
speed and acceleration setpoint for slave drives 2 and 3. In addition,
the slave drives are powered up/down by the master drive (control
word). This means that every slave drive is given its individual
control word.
Vice versa the slave drives send their individual status word to the
master drive. This results in the following table:
Receive
Master drive 1 Slave drive 2 Slave drive 3
Master drive 1
STW_2
S
set
n
set
a
set
STW_3
S
set
n
set
a
set
Transmit
Slave drive 2 ZW_2
Slave drive 3 ZW_3
Table 8.3-3 Transmitting and receiving control/status words between master and
slave drives
♦ Drive 2 and 3, slave drives with integrated position control
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