Commissioning
4.4 Setting up a STEP 7 project
Connecting the SIMODRIVE 611U to the Technology CPU
Product Information, 03/2008, A5E00272066-05
23
● Select Synchronize drive with equidistant DP cycle.
– DP cycle:
Bus clock cycle: depends on the number of slaves (minimum 1.5 ms)
– Master application cycle:
Here, you specify the cycle clock in which the master is to supply new values to the
SIMODRIVE 611U. For the CPU 317T-2 DP, this is the position control cycle clock
(servo). You must note this value and enter it later when configuring the system clocks
as position control cycle clock.
Note
It is mandatory that the master application cycle match the position control cycle clock
of the CPU!
– Setpoint acceptance:
Setpoint is output in the SIMODRIVE 611U as soon as possible after the DP clock
cycle. The time depends on the number of isochronous slaves. It must be ensured that
the last slave has also received the setpoint values in the current DP cycle. Otherwise,
the drive signals it is "not isochronous with the master".
– Actual-value acquisition
Measured value is latched in the SIMODRIVE 611U as soon as possible before the
DP cycle clock (Input 1: → 0.125 ms before the next DP cycle clock).
● Perform match. Clicking the button causes the following settings to be made:·
– The equidistant bus cycle will be activated·
– The DP cycle in the master system will be matched to the drive properties and set to
2000 ms
– All drive components of the same family receive the same parameterization
● You must then save and compile the project (Station > Save and compile). The
consistency must also be tested (Station > Test consistency).
Once these steps have been performed without error, you must load the hardware
configuration into the CPU 317T-2 DP (Target system > Load into the module).
If you have changed the transmission speed of the MPI/DP interface, you must modify
the interface parameters in the PG/PC interface in order to subsequently load to the
technology system data to the module.
To Next Page
Loading...
