Siemens SINAMICS Intelligent Operator Panel Operating Instructions Manual page 30

Wizards
Safety Commissioning
This wizard is designed to allow the user to commission the Inverters with safety-integrated
functions. The user is guided through the necessary steps to commission the various safety-
integrated functions available, depending upon the type of Control Unit to be used with the
user application. The wizard will only display the functions that are available for their specific
Control Unit; if no safety functions are available, the wizard will not be displayed in the
wizard menu structure.
The are two levels of safety commissioning wizards and these are as follows:
● Basic Safety Commissioning - allows the configuration of the safety digital inputs and
signals for the following safety functions:
– Safe Torque Off (STO)
– ProfiSafe
● Extended Safety Commissioning - allows the configuration of the safety digital inputs and
signals for the following safety functions:
– Safe Stop 1 (SS1)
– Safe Stop 2 (SS2)
– Safe Operating Stop (SOS)
– Safe Low Speed (SLS)
– Safe Torque Off (STO)
– ProfiSafe
Each of these wizards can be used to configure inputs and signals for the users specific
application requirements.
Fan staging with PID
this application is used to run several fans in parallel depending on the actual airflow
requirement.
One fan is under direct control and monitoring of the Inverter, the other fans are started and
stopped as required, but no feedback from the other fans is required. The monitoring is
performed by the use of pressure sensors utilizing the PID controller.
The analog inputs are used for setting the setpoint and receiving the feedback from the
various sensors, to which the PID control will react. The digital outputs are used to control
the fans.
Each fan, when started is ran at the minimum frequency; this is done to achieve a uniformed
increase in pressure/airflow without causing a surge in pressure within the system.
Since all fans have the ability to be started and stopped by the Inverter, it is possible to use
the fans in a different number of sequences to ensure that no one fan is working
permanently and the workload is distributed in a balanced manner.
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Operating Instructions, 08/2015, FW V1.6.1, A5E00110011B AF
Intelligent Operator Panel (IOP)