Rhymebus RM6F5 series User Manual

Chapter 6 Parameter Description of Pump
118
6
․6-5-1 Cavitation Phenomenon
When the drive runs at full speed and actual pressure (PV) is lower than the setting value of
F_119 (Water Shortage Detection by Pressure Level) with a time interval (F_121 Time of Water
Shortage Detection), the drive will trip to avoid the cavitation phenomenon appearing in pump
systems.
Output
frequency
Actual
pressure
(PV)
Setting
pressure
(SV)
F_119
F_121
Fb Lo
․6-5-2 Dry Running
When the drive runs at full speed and the output current of the drive is lower than F_048 (Motor
Rated Current) * F_120 (Water Shortage Detection by Current Level) with a time interval
(F_121 Time of Water Shortage Detection), the drive will trip to avoid dry running conditions
appearing in pump systems.
Output
frequency
F_120
F_121
Output
current
Fb Lo
Water shortage
condition

Rhymebus RM6F5 series Specifications

General

Brand	Rhymebus
Model	RM6F5 series
Category	Controller
Language	English