Samlexpower PST-15S-12E Owner's manual - Section 10 |
46 | SAMLEX AMERICA INC.
seCtIOn 10 |
Protections
The unit will reset automatically when the DC input voltage rises to 11.5V ± 0.3V or
higher for PST-300S-12E or to 23V ± 0.5V or higher for PST-300S-24E.
10.4 HiGH Dc inPUt VoLtAGe SHUtDoWn
If the voltage at the DC input terminals rises to 16.5V or higher for PST-300S-12E or, to 33V
or higher for PST-300S-24E, the AC output voltage will be shut down temporarily. buzzer
alarm will be sounded. The Green LED marked "POWER" (2, fig 6.1a) will remain lighted.
The unit will be reset automatically when the voltage drops down to
PST-300S-12E or to
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
(Power Transformer T3), and at 90°C ± 5°C, the AC output of the inverter is shut down
temporarily. Buzzer alarm will be sounded. The Green LED marked "POWER" (2, fig
6.1a) will remain lighted.
The unit will automatically reset after the hot spot has cooled down to 65°C ± 5°C.
10.6 inteRnAL Dc SiDe FUSeS
The following DC side fuses have been provided for internal protection of the DC input side.
The fuses are 32V, Automotive Type Blade fuses, Type "ATO" by Littel fuse or equivalent:
PST-300S-12E: 12 pieces of 35A in parallel = 420A total
PST-300S-24E: 12 pieces of 20A in parallel = 240A total
note: fuses are soldered to the PCb.
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. The Green LED marked "POWER" (2, fig 6.1a) will be switched off and there will
be no AC output.