Levitronix BPS-300 - Power Supply and Consumption Details; Temperature Monitoring and Limits

User Manual for BPS-300
www.levitronix.com
PL-4006-00, Rev07, DCO# 20-144
10
3.2 Power Supply and Consumption
Figure 7 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.
Figure 7: Electrical power consumption
(Controller LPC-300.1 with pump head LPP-300.1)
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.
Start
Temperature
Monitoring
WARNING
YES
Temperature
> 70°C ?
Temperature
> 80°C ?
YES
YES
ERROR
Temperature
higher than 70°C
for more than 10
minutes?
NO
ERROR
YES
NO
NO
Start
Temperature
Monitoring
WARNING
YES
Temperature
> 90°C ?
Temperature
> 100°C ?
YES
YES
ERROR
Temperature
higher than 90°C
for more than 10
minutes?
NO
ERROR
YES
NO
NO
Figure 8: Controller temp. monitoring
Figure 9: Motor temperature monitoring
0.0 2.5 5.0 7.5 10.0 12.5 15.0
0
100
200
300
0 10 20 30 40 50 60
[gallons/min]
[Watts]
[liters/min]
Specific gravity = 1 g/cm
3
Viscosity = ~ 0.7 cP
8000 rpm
7000 rpm
6000 rpm
5000 rpm
4000 rpm