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Shut-down due to high DC input voltage
If the voltage at the DC input terminals exceeds 16.5 V for PST-100S-12A or 33 V for
PST-100S-24A, the inverter will be shut down temporarily. The green LED (3) will be
switched off and there will be no AC output.
The unit will be reset automatically
when the voltage drops down to 16.7 V +/- 0.2 V for PST-100S-12A or 33.5 +/-0.2 V for
PST-100S-24A.
Shut-down due to reversal of 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 DC side fuse(s) inside the inverter
.
If the DC side fuses are blown, the
inverter will be dead. The green LED(3) will be switched off and there will be no AC
output.
THE ABOVE DC SIDE FUSES MAY BE SOLDERED AND MAY NOT BE EASILY
REPLACEABLE BY THE USER (WILL REQUIRE REMOVAL OF THE CIRCUIT BOARD). Please
call Technical Support to arrange for repair.
NOTE: DAMAGE CAUSED BY REVERSE POLARITY WILL NOT BE COVERED BY
WARRANTY!
Shut-down due to over-temperature
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 a particular upper limit, the AC output of the inverter is shut down
temporarily. The red
Over Temp
LED (5) is lighted and a buzzer is sounded. The unit
will automatically reset after the unit has cooled down.
Shut-down due to overload
The inverter can provide a higher than normal instantaneous (< 1 second) power
limited to the surge power rating of the inverter. Also, the inverter can provide
continuous power limited to the continuous power rating of the inverter. If either
the continuous power or the instantaneous power is exceeded over a longer length
of time, the AC output of the inverter is shut down permanently. The green LED (3) is
switched off and the red overload LED (4) is lighted.
The inverter gets latched in this
condition. To reset, the power on / off switch (2) is required to be switched off and on
again.
Before switching on the inverter again, ensure that the cause of the overload is
removed.
NOTE:
If the red overload LED (4) remains lighted after resetting the unit, remove all
the loads from the inverter and reset again. If the red overload LED (4) still remains
lighted without any load, the inverter has developed an internal defect. Please call
Tech Support.
