Sun Pumps MTR BLM-SB-073S-60 - Manual (Page 4)

Table 1
Controller Model Min
Voltage
1
Max
Voltage
Min
Power
Max
Power
Low
Water
Cutoff
Min
Low
Water
Cutoff
Max
Nominal
Voltage
PCA-60BLS-M2
2
30 V 100 V Set by
LWC
840 W 50 W 300 W 60 V
PCA-120BLS-M2
2
90 V 200 V Set by
LWC
1000 W 50 W 500 W 120 V
1 Min Voltage is the minimum voltage which the unit must see in order to start the pump. If this
voltage is not obtained, the unit will not attempt to start the pump. Voltages lower than this will
not hurt the unit.
2
Both controller models have the same operating features, functionality and setup. Voltage and
power tolerances are the only differences of concern to the end user. This manual will only
differentiate when necessary for clarity.
2.1 Controller Features
1. Current boosting for matching the load requirements of the pump.
2. Voltage regulation of the solar electric array at its maximum power point.
3. Over-current protection via integrated electronic circuit breaker.
4. Reverse polarity protection (10 amperes maximum) on the input terminals.
5. Voltage and current limiting to pump motor.
6. Transient protection and surge suppression.
7. Adjustable pump motor voltage control for precision output flow.
8. System ON/OFF switch.
9. LED indicators; 1. Power In, 2. Motor Run, 3. MPPT, 4. RS Stop, 5. Low
Power, 6. Over-Current, 7. Fault Condition.
10. Weather resistant cast aluminum enclosure with hinged door.
11. Rising clamp screw terminal blocks – no fork terminals required.
12. Remote switch interface – float switch or remote shutdown –Normally Open or
Normally Closed user selectable.
13. Sensor and sensor less “Low Water Cutoff” circuit
14. Low Power Shut Down circuit
2.2 Application
The only application the PCA series controllers are designed for is the interface
between a solar module array or battery bank and a brushless, sensorless three phase
DC motor as well as various peripheral pump system signal devices.
No other applications or DC power sources are recommended or warranted unless
written approval is provided by the SunPumps factory
.