A-8
CDA3000 Operation Manual
 
Speed ratio run Differing motor output speeds can only be attained by using motors with 
differing nominal speeds, e.g. 1440 rpm and 2880 rpm. The speed ratio 
of approx. 1:2 is maintained during the speed change. The accuracy 
depends on the slip and thus on the load.
Connecting indi-
vidual motors
When connecting motors, ensure that the connection current is not 
higher than the inverter peak current. It is advantageous if the inverter 
load is >40%.
This 40% base load backs up the output voltage of the inverter module at 
the moment of connection of the motor.
During connection the motor must not be run in the field 
weakening range, since the connected motor would 
otherwise have to run at reduced runup torque.
Topic Project planning notes