Multi-Purpose Control Application
The most flexible application
The frequency reference can be an analogue input, joystick, motor potentiometer or a
mathematical function of the analogue inputs.
Multi-step speeds or jogging speed can also be programmed.
More programmable digital inputs
Best option with difficult applications – all Honeywell NXS capabilities accessible through this
PFC (Pump and Fan Cascade) Control Application
Used for controlling a group of pumps or fans.
The internal PID regulator controls the speed of one motor and provides start/stop commands for 1
to 4 auxiliary motors (connected directly to mains)
Provides redundancy and high efficiency.
Four auxiliary pumps or fans can be connected
Autochange (if activated) allows to set the starting and stopping order of the drives, controlled by
the pump and fan automatics (including the main drive)
Fig. 9. PFC- controller application with autochange
NXS VARIABLE FREQUENCY DRIVES