User Manual for PuraLev
®
iF30SU
www.levitronix.com
PL-4078-00, Rev00, DCO# 20-228
13
3
Engineering Information
3.1 Power Supply and Consumption
3.1.1 Power Consumption
Figure 16: Electrical power consumption
(Typical curves measured with DCP-30.1 pump head.)
3.1.1 Inrush Current
When selecting a AC/DC power supply the inrush currents (currents during power-on) shown in
be considered. If the specifications of the power supply are unclear a test with multiple power-on cycles is
recommended to assure proper operation.
Situation
I
2
t Value in [A
2
s]
Peak Value in [A]
Driver with 0.5m cable length
3.5
216
Driver with 5 m cable length
1.7
114
Table 8: Inrush currents of power supply driver during power on of driver
(Typical values measured with OEM pump driver model at 24 VDC + 10%.)
3.1.2 Evaluation of Power Supplies
If other power supplies than the standard specified ones are used, it is recommended to evaluate them under
demanding operating situations like fast braking from maximum speed and during power on and take-off of the
impeller.
3.2 Temperature Monitoring
To avoid overheating of the system, the controller and motor temperatures within the driver are monitored. If
one of both temperatures exceeds
80°C
(176°F)
for a period of more than 10
minutes, the system goes into
an error state and the pump stops. At
90°C
(194°F)
, the system stops immediately.
If
65°C
is exceeded a warning is given within the driver announcing to the user that the driver is running near
the thermal limit (see explanation in
Section 3.3
). For the
EasyConnect
and
OEM
models the warning signal
can be monitored with the
Levitronix
®
Service Software
or configured on one of the digital outputs. For the
Stand-Alone
model the temperature can be monitored on the display.
0.0
0.5
1.0
1.5
2.0
0
5
10
15
20
25
30
0
1
2
3
4
5
6
7
8
[gallons/min]
[Watts]
[liters/min]
5000 rpm
13000 rpm
12000 rpm
11000 rpm
10000 rpm
9000 rpm
8000 rpm
7000 rpm
6000 rpm
Specific gravity = 1g/cm
3
Viscosity = 0.7cP
Liquid Temp.: 40
C
