Functions
7.4 Setpoint sources
Inverter with CU240B-2 and CU240E-2 Control Units
160
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
Adding setpoints from different sources
Parameter P1000 can also be used to add more setpoint sources, e.g. you can specify the
speed setpoint as the result of adding together the fieldbus and analog input setpoints.
For more information, see the List Manual (P1000 in the parameter list and function diagram
3030).
7.4.2
Analog input as setpoint source
If you use an analog input as setpoint source, then you must adapt this analog input to the
type of connected signal (± 10 V, 4 … 20 mA, …). Additional information is available in
Section Analog inputs (Page 97).
7.4.3
Motorized potentiometer as setpoint source
The 'motorized potentiometer' (MOP) function simulates an electromechanical potentiometer
for entering setpoints. You can continuously adjust the motorized potentiometer (MOP) using
the control signals "raise" and "lower". The control signals are received via the digital inputs
of the inverter or from the operator panel that has been inserted.
Typical applications
● Entering the speed setpoint during the commissioning phase.
● Manual operation of the motor should the higher-level control fail.
● Entering the speed setpoint after changeover from automatic operation to manual
operation.
● Applications with largely constant setpoint and without higher-level control.