4-72
Engineering Guide CDA3000
4 Software functions
Setting of the acceleration and decelera-
tion times and of the ramp shape (linear,
sinusoidal).
Tuning of the motor dynamics to the appli-
cation.
Facility for setting the parameters of eight
fixed frequencies with associated acceler-
ation and deceleration ramps.
Digital selection of fixed frequencies with
variable dynamics.
Online switchover of the characteristic
parameters, driving set parameters and
speed control parameters.
Adaptation of the motor to various load
situations.
Speed coupling of several inverter mod-
ules with adjustable transmission ratio.
Mechanical transmissions can be
replaced in the VFC and SFC control
modes by fixed-ratio running. Only in FOR
mode is there speed synchronism.
Feed of a direct current into the motor,
causing it to brake.
No braking resistor is required to stop
motors. The braking energy is converted
as heat in the motor.
Shutdown of the motor after braking with
direct current.
Rotation due to the load on the motor is
counteracted.
Setting of the switching frequency of the
inverter power stage.
Optimization of the drive system in terms
of power loss, smooth running and noise.
Reduction of the dynamics of acceleration
and braking processes when a program-
mable current limit is reached.
Acceleration and braking processes can
be run with max. dynamics without risk of
a current overload shut-off. In stationary
operation the motor is protected against
stalling.
Driving profile
generator
Driving sets
Characteristic data
set switchover
Master-/Slave
operation
DC braking
DC holding
Modulation
Current-controlled
startup