User Manual for BPS-2000
www.levitronix.com
PL-4021-00, Rev02, DCO# 15-235
22
3.4.2 Controller Temperature
Depending on the ambient temperature and the placement of the controller additional cooling may be
required (see
Figure 24
). To improve cooling of the controller, place the device into a moving air stream. If
the controller is mounted in a compact area or adjacent to additional heat sources (e.g. a 2
nd
controller)
ensure that there is sufficient ventilation.
Figure 24: Temperature curves of controller LPC-2000 vs. flow and speed
(For pumping with pump head LPP-2000.6/7 and motor LPM-2000.2)
The above curves are measurements of the controller temperature at 25
°C
ambient. Equation
(Eq. 2)
shows
how to calculate the controller temperature for at other ambient temperatures based on this curve.
e
temperatur
Ambient
T
e
temperatur
Controller
T
C
T
C
T
T
T
T
A
C
A
A
C
A
C
24
Figure
see
)
25
(
)
25
(
)
(
0
0
(Eq. 2)
77
87
97
107
117
127
137
147
157
167
0
5
10
15
20
25
30
35
25
30
35
40
45
50
55
60
65
70
75
0
20
40
60
80
100
120
140
[°F]
[gpm]
[
0
C]
[lpm]
Ambient temp. = 25 C
Specific gravity = 1 g/cm
3
Viscosity = 0.7 cP
PWM Drive = 4.38 kHz
PWM Bearing = 17.51 kHz
Fan: Temp. Controlled
4000 rpm
Absolute Temperature Limit
8000 rpm
77
87
97
107
117
127
137
147
157
167
0
2
4
6
8
10
12
14
16
18
20
22
25
30
35
40
45
50
55
60
65
70
75
0
10
20
30
40
50
60
70
80
[°F]
[gpm]
[
0
C]
[lpm]
Ambient temp. = 25 C
Specific gravity = 1 g/cm
3
Viscosity = 0.7 cP
PWM Drive = 4.38 kHz
PWM Bearing = 17.51 kHz
Fan: Temp. Controlled
10000 rpm
4000 rpm
9000 rpm
Absolute Temperature Limit
High-Flow System
Pump Head LPP-2000.6
High-Pressure System
Pump Head LPP-2000.7
