Application
Used to control and power a DC motor from a solar panel. The unit
prevents stalling of the motor
under less than full sun condition. The power of the sun is transformed
to the motor running conditions so as the sun goes down the motor slows
down instead of stalling. Conversely, or as the sun comes up the motor
starts running much earlier instead of staying stalled for hours when
it could be running. This translates into more running time of the
motor where it spends a lot of time working instead of stalled doing no
work.
Features
- Voltage Limited Output
- Internal Fuse- 15 amp automotive style fuse
- Greatly increases water flow, even under reduced sunlight
conditions (over 40% likely)
- Transient Protected on the input and output
- Float Switch input for on/off control
- Single Unit Switchable 12 V or 24 V
- Ultra High Efficiency >94 %
Electrical Specifications
| Nominal Voltage (V) |
12 / 24 |
| Nominal PV Input (V) |
12 / 24 |
| Maximum PV Input (V) |
60 |
| Maximum Output Voltage (V) |
15 / 30 |
| Maximum Output (A) |
10 |
Maximum Output (A)
short term - 10 sec |
15 |
| Efficiency |
>94% |
** Special units have a suffix of M XX after the part number. The
maximum output voltage
of the pump driver is XX. For example PT 12/24 - 10 M6 will power a 6 V
motor from a
nominal 12 V solar panel. Note that the motor current increase by the
ratio
of approx. 15/6. Thus a 1 amp 12 V nominal solar panel will power the
motor at 2.5 Amps.
Mechanical Specifications
Weight:
Size:
- 4.5" X 2.1" X 2.1" resembling a junction box with mounting feet
Operating Temperature:
Humidity:
- 90 % non-condensing
Note: To allow for changing the fuse the cover can be removed. To make
the unit waterproof,
apply a small amount of silicon around the unit's lid.
Connections
- Power: PV and Load 6 inch # 16 AWG flying leads
-
- Input: Red = PV +, Black = PV -
-
- Output: White = Pump +, Blue = Pump -
- Signal: float switch, 12/24 V select
-
- 6 inch # 24 flying leads yellow: connect to PV - = OFF
for float switch operation
-
- 6 inch # 24 flying leads purple: connect to PV - = 24 V
operation disconnected = 12 V operation
-
- 6 inch # 24 flying leads orange: connect to PV - = 30 V
output limit disconnected = 15 V output limit
Application Notes:
- This Pump Power Tracker(TM) is quite capable of putting out
over 15 amps into a stalled load even from a single 30 watt 4.5 amp
panel. It is recommended that a fuse or overtemperature switch matched
to your pump motor be incorporated in the system to protect your pump
or motor.
- Float switch operation draws microamps of
current, i.e. small wire gauge, allowing long distance runs between
float switches / holding tanks, and PV / pump driver without the need
to string long lines of heavy gauge wire.
- Unit is a true 10
amp unit, all necessary derating already accounted for. Unit is capable
of 8 amp operation with normal derating practices.
- As with all electronics, it is recommended the unit not be
mounted in direct sunshine.
- Solar panel or energy limited input only.
