Closed-Loop Fan; Roller Conveyor; Open-Loop Compressor - Siemens Sinamics G120 Operating Instructions Manual

Wizards
● Feedback sensor
● Level sensor (dry run protection - optional)
● Motor temperature sensor (optional).

Closed-loop fan

The purpose of the closed-loop controlled fan application is to maintain a constant airflow
within a ventilation system, utilizing as little energy as possible.
A specific airflow and pressure for the fan system is set within the Inverter and these values
are directly monitored using the PID controller. Depending on a decrease or increase in
pressure readings, the Inverter will increase or decrease the speed of the fan accordingly.
The system comprises the following components:
● Control Module
● Power Module
● Motor
● Fan
● Feedback sensor
● Motor temperature sensor (optional).

Roller conveyor

This wizard can be used for the typical material handling applications, such as conveyor
belts, roller conveyors and turn-tables.
The sensors are directly connected to the Inverter to allow their individual status to be sent to
the controlling PLC.
The system will comprise of the following components:
● Control Module (with fieldbus interface)
● Power Module
● Geared motor
● Initiators (digital)
● Mechanical brake
● Motor temperature sensor (optional).

Open-loop compressor

The Inverter is used to control the output pressure of a compressor to ensure that it adapts
to the varying volume of gas that is required to be compressed.
Compressing the gas involves reducing the volume and increasing the pressure within the
container to compress the gas.
The setpoint is controlled by the analog inputs.
26
Operating Instructions, 03/2013, FW V1.4, A5E00110011A4 AB
Intelligent Operator Panel (IOP)