MICROMASTER 430 Features
♦ Linear U/f control with flux current control (FCC)for improved dynamic
response and motor control
♦ Multiple point U/f control
Fast Current Limitation (FCL) for trip-free operation
Built-in DC injection brake
Compound braking to improve braking performance
Ramp function generator
♦ With smoothing
♦ Without smoothing
Technology controller (PID)
parameter set switch-over
♦ Motor data sets (DDS)
♦ Command data sets and setpoint sources (CDS)
Rating for operation with variable torque (VT)
Free Function Blocks
Overtemperature protection for the inverter
Ground fault protection
i2t thermal motor protection
PTC/KTY for motor protection
MICROMASTER 430 operating modes
Setting up an inverter bypass circuit
Control of two locked contactors via relay outputs of MICROMASTER 430. This
circuit makes it possible to operate the motor via the inverter or directly via the
mains. The inverter is responsible for switching.
Switching is possible by the following means:
error message from the inverter
. digital input
. inverter frequency
For further settings please refer to parameters list P1260 and following.
Controlling additional drives via output relay
Enables up to three additional motors to be controlled based on PID control
The entire system is made up of a pump which is controlled by the inverter with up
to an additional 3 pumps which can be added to the system via contactors or motor
starters.The motor starter is controlled via the output relay in the inverter. Figure
4-3 shows a typical pump system.
This function can also be used accordingly for ventilators and ventilation shafts.
For additional settings please refer to parameter list P2370 and following.