Levitronix 100-90688, User Manual, Page: 28 / 39

User Manual for BPS-4H (High Temp.)
www.levitronix.com
PL-2009-03, Rev04, DCO# 21-101 28
5
Operation
5.1 Overview of Main Operation Modes
The bearingless pump system BPS-4H
can be driven in two main modes: “speed control” and “process (flow,
pressure) control”.
Figure 3 illustrates the configuration of the system for speed control, where the speed can
be set by the user over various interfaces. If process parameters like flow or pressure have to be controlled
precisely, the system can be configured according to
Figure 4 with an external pressure or flow-sensor.
5.2 System Operation with the LUI-A Levitronix User Interface
The handheld LUI-A.1 Levitronix
®
User Interface is attached to the RS232 connector of the controller and
provides basic manual operational functions. Figure 30 illustrates the usages with a state diagram.
Connector to the RS232
of the controller
Figure 30: State diagram LUI-A.1 Levitronix
®
User Interface
(Controller firmware S4.48 and LUI firmware L1.60 R00.
For other configurations see separate firmware documentation)
Power On
ON
(Speed / Process
Mode)
Enable / Disable
Process Control
OFF
Ref. Speed /
Process Variable
up
Ref. Speed /
Process Variable
down
CLR SEL
SEL
SEL
3 sec
CLR
yes
no
Version
L1.60 R00
Display Last
System Error
(that stopped the pump)
Display Last
System Error
(that stopped the pump)
ANY
ANY
Display Actual
System Error
!
Error
!
Error
!
Error