Morningstar PS-30 Manual

Installation
ProStar Operator’s Manual
27
26
3.0
STEP 4: Grounding
NOTE: Depending on the country of
installation, conductors identified by the
color green, or a combination of green /
yellow, shall only be used as earthing con-
ductors.
For safety, and effective lightning protection, it is
recommended, and may be locally required, that
the negative conductor of the charging system be
properly grounded. Use only one system earth
ground. For conductor sizing requirements, refer to
the US National Electrical Code, or applicable local
regulations or code.
STEP 5: Battery Connections
(at battery
OR solar side,
but NOT both)
System Ground
6 in (150 mm)
Max.
Battery (-)
Battery (+)
+
-
12V or 24V
Battery
Fuse or breaker sizing
based on required wire
ampacity
Be sure that DIP switches 2 and 3 are set for 12 or 24V,
as described in Section 3.2.
NOTE: Before connecting the battery, measure
the open-circuit voltage. It must be over 10
Volts to start the controller. If the system voltage
Settings Switches are set to Auto-detect, battery
voltage over 15.5V will be detected as a 24V
nominal battery, and the unit will charge accordingly.
The 12/24V auto selection is only done at start-up.
With the battery disconnect open, connect the battery
(+) and (-) wires from the battery to controller. DO NOT
CLOSE THE DISCONNECT AT THIS TIME.