Power Supply And Consumption; Temperature Monitoring - Levitronix BPS-200 User Manual

3.2 Power Supply and Consumption

Figure 11 shows the typical power consumption of the system. If other AC/DC 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.
0.0 1.0
200
175
150
[Watts]
125
100
75
50
25
0
0.0 2.5
(Controller LPC-200.x with pump head LPP-200.1 and motor BSM-1.x. Representative for LPP-200.11)

3.3 Temperature Monitoring

To avoid overheating of the system, the controller and motor temperatures are monitored. If the controller
temperature exceeds 70°C (158°F) or the motor temperature 90°C (194°F) for a duration of more than 10
minutes, the system goes into an error state and the pump stops. At 80°C (176 F) controller temperature or
100°C (212°F) motor temperature, the system stops immediately.
WARNING
YES
ERROR
YES
ERROR
YES
Figure 12: Controller temp. monitoring
PL-4012-00, Rev07, DCO# 20-144
[gallons/min]
2.0
10000 rpm
5.0 7.5 10.0
[liters/min]
Figure 11: Electrical power consumption
Start
Temperature
Monitoring
Temperature
NO
> 70°C ?
YES
Temperature
higher than 70°C
for more than 10
minutes?
NO
Temperature
NO
> 80°C ?
3.0 4.0
9000 rpm
8000 rpm
5000 rpm
12.5 15.0 17.5
WARNING
ERROR
ERROR
Figure 13: Motor temperature monitoring
User Manual for BPS-200
www.levitronix.com
5.0 6.0
— Supply = 24 VDC
- - - Supply = 48 VDC
7000 rpm
6000 rpm
3
Specific gravity = 1 g/cm
Viscosity = ~ 0.7 cP
Liquid Temp.: 40C
20.0 22.5
Start
Temperature
Monitoring
Temperature
YES NO
> 90°C ?
YES
Temperature
higher than 90°C
YES
for more than 10
minutes?
NO
Temperature
YES NO
> 100°C ?
25.0
12