2.3.3 Connecting the battery
Respect that batteries store a substantial amount of energy which can produce high current and
electric arc when a short circuit is applied to the battery. It is recommended to install a battery
fuse which must be able to carry currents of 1.5 times of your nominal system current for safety
considerations. Insert the fuse after you have connected all wires including the load and make sure
that all terminals are fixed tightly with proper polarity.
Negative grounded
2.3.4 Connecting solar array
Negative grounded
2.4 Starting up the controller
After double-checking all wires and terminals, insert batterym fuse.
2.4.1 Self test
As soon as battery voltage is applied to MPS, the unit begins a self test routine and wiring-check. If
system passes wiring-check, the LED display changes to "normal operation."
2.4.2 Display functions
Positive grounded
Positive grounded
5
30
Open the cover on the battery terminals side.
Connect the wires leading to the battery with the
proper polarity.
Mind the recommended wire length (min 30cm to
max approx. 100cm). MPS terminals can connect
2
up to 35mm
wires(AWG#2). Minimum recommended
wire size for:
2
MPS45: min 10 mm
(AWG#7)
2
MPS80: min 20 mm
(AWG#4)
Close the covers.
Open the cover at the solar-array terminals.
Connect the wires leading to the solar-array with
the correct polarity. Respect the different wiring
for negative and positive grounded systems!
2
MPS45: min 10 mm
2
MPS80: min 20 mm
Close the covers.
LED1
LED2
LED3
(AWG #7)
(AWG #4)