Soft Starter" Control Function - Siemens SIMOCODE pro System Manual

4.2.15

"Soft starter" control function

Description
With this control function, SIMOCODE pro can activate the 3RW soft
starter. Thus, the 3RW soft starters are connected via SIMOCODE pro to
the PROFIBUS DP .
Control commands
• Start with "ON >" activates the QE1 and QE4 contactor controls
• Stop with "OFF" first deactivates the QE4 contactor control. When the signal
"Feedback ON" has expired, the QE1 contactor control is deactivated 3 s later
in order to facilitate a smooth run down via the soft starter.
• With "Reset", the QE3 contactor control is activated for 20 ms and sends the
soft starter an acknowledgement signal via a parameterizable relay output.
The control commands can be issued to SIMOCODE pro from arbitrary
control stations (see also the description of "control stations"). Thus, the
inputs (plugs) must be connected to the corresponding sockets, preferably
to the "Enabled control command" sockets.
Every fault message causes the contactor control to be deactivated.
Making internal assignments
You have to make the following assignments:
1) Assign the QE1 contactor control to the relay output which controls the coil
of the network contactor.
2) Assign the QE4 contactor control to an arbitrary relay output from which the
"ON input" of the soft starter should be controlled.
3) Assign the QE3 contactor control to the relay output that supplies the 20 ms
acknowledgment signal to the soft starter.
4) Assign the "ON >" and "OFF" control commands to the enabled control
commands.
5) Assign the SIMOCODE pro input to which the "Fault" signal output of the soft
starter is connected to the input (socket) of the standard function "External
fault 1".
6) The "Start-up end" signal of the soft starter can also be wired to one of the
inputs and processed by SIMOCODE pro.
Notice
In order to avoid disconnections due to faults, the "Execution time"
parameter in SIMOCODE pro must be set at least to the smooth running
down time of the soft starter .
SIMOCODE pro
GWA 4NEB 631 6050-22 DS 03
Motor control
4-59