SECTION 10 |
Protections
47
10.5 OVER-TEMPERATURE SHUT DOWN
In case of failure of the cooling fan or in the case of inadequate heat removal due
to higher ambient temperatures / insufficient air exchange, the temperature inside
the unit will increase. The temperature of a critical hot spot inside the inverter is
monitored and, at 90°C ± 5°C, the AC output of the inverter is shut down temporarily.
Buzzer alarm will be sounded. The orange LED will turn on.
The unit will automatically reset after the hot spot has cooled down to 65°C ± 5°C.
10.6 INTERNAL DC SIDE FUSES
The DC side fuses have been provided for internal protection of the DC input side.
The fuses are 32V, Automotive Type Blade Fuses, Type “ATC” by Cooper Bussmann or
equivalent. Please see Table 8.2 for Internal Fuses.
10.7 REVERSE POLARITY AT THE DC INPUT TERMINALS
The positive of the battery should be connected to the Positive DC input terminal of
the inverter and the Negative of the battery should be connected to the Negative
DC input terminal of the inverter. A reversal of polarity (the Positive of the battery
wrongly connected to the Negative DC input terminal of the inverter and the
Negative of the battery wrongly connected to the Positive DC input terminal of the
inverter) will blow the external / internal DC side fuses. If the DC side fuse is blown,
the inverter will be dead.
INFO
Reverse polarity connection is likely to damage the DC input circuitry. The
i
internal fuse(s) should be replaced with the same size of fuse(s) used in
the unit. If the unit does not work after replacing the fuse(s), it has been
permanently damaged and will require repair / replacement.
CAUTION!
Damage caused by reverse polarity is not covered by warranty! When
!
making battery connections on the input side, make sure that the polarity
of battery connections is correct (Connect the Positive of the battery to
the Positive terminal of the unit and the Negative of the battery to the
Negative terminal of the unit). If the input is connected in reverse polarity,
DC fuse(s) inside the inverter and external fuse will blow and may also
cause permanent damage to the inverter.
