Sun Pumps SCP 48-18-48Y BC - Manual (Page 5)

2.0 Product Overview
The SunPumps PCA-BLS-M2 and PCC-BLS-M2 series controllers were designed specifically for SunPumps
Sensorless Brushless DC motors. When properly installed and configured, the features incorporated into this
stand-alone system will control and protect your pump system permitting many years of dependable, trouble free
service. SunPumps has produced multiple versions of this controller. The PCA controller is for lower power
applications and lacks an LCD screen. Functionally the notable differences are certain set points and electrical
characteristics which are detailed in the table below.
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 1440 W 50 W 500 W 120 V
PCC-120BLS-M2 2 90 V 200 V Set by LWC 1500 W 100 W 585 W 120 V
PCC-180BLS-M2 2 120 V 300 V Set by LWC 2250 W 100 W 1023 W 180 V
PCC-240BLS-M2
2
220 V 380 V Set by LWC 3000 W 100 W 1023 W 240 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 All controller models have the same basic operating features, functionality and setup. A display screen and the 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. (MPPT)
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 output motor power control for precision output flow.
8. Digital display indicating status, power, voltage, current and more. (PCC Series Only)
9. System ON/OFF switch.
10. LED indicators; 1. Power In, 2. Motor Run, 3. MPPT, 4. RS Stop, 5. Low Power, 6. Over-Current, 7.
Fault Condition.
11. Weather resistant powder coated, die cast aluminum enclosure with a hinged door.
12. Rising clamp screw terminal blocks – no fork terminals required.
13. Pre-adjusted pump configuration and power source selection.
14. Remote switch interface – float switch or remote shutdown –Normally Open or Normally Closed, user
selectable.
15. Sensor and Sensorless “Low Water” circuit
16. Low Power Shut Down circuit
2.2 Controller Application
The only application the PC series controllers are designed for is the interface between a solar module array and
SunPumps Sensorless Brushless DC motors. Do not use this controller on a brush type or AC motor.
No other applications or DC power sources are recommended or warranted unless written approval
is provided by the SunPumps factory.
3.0 Installation and Operation
The following sections are outlined in a step-by-step format to guide you through the installation and
configuration of an SCP series pump and PC series controller. The procedure for installing the SCP series pool
pump is the same as a standard AC pool pump. Any licensed pump contractor will be familiar with the proper
installation procedures. Installation and operation should be in accordance with national and local electrical codes,
regulations, accepted codes of good practice and common sense. This pump should be installed by a licensed
professional pump installer.