Samlex America PST-120-12 - Manual (Page 8)

8 | SAMLEX AMERICA INC.
seCtIOn 3 | Installation & Operation
PRotectionS
overload and short circuit on the Ac output side
- If the load exceeds 120W, the output voltage will start dropping, but the unit will
NoT shut down.
- The LeD Status Indicator (2, fig. 2.1) will remain GreeN.
- The output voltage waveform will be distorted and will not have pure sine waveform,
but will be clipped at top and bottom and will look like a square waveform.
- There will be excessive rf noise.
- The until will reset automatically once the overload/short circuit is removed.
over temperature due to fan failure or due to lack of cool replacement air
- The unit will shut down if temperature of hot spot inside the unit > 105°C. The LeD
Status Indicator (2, fig. 2.1) will turn orANGe.
- The unit will reset automatically on cooling.
Low Dc input Voltage
- The unit will shut down if DC input voltage is < 10 VDC.
- The LeD Status Indicator (2, fig. 2.1) will turn orANGe.
- The unit will reset automatically when the voltage rises to 11.5 VDC.
High Dc input Voltage
- The unit will shut down if DC input voltage > 16.5 VDC.
- The LeD Status Indicator (2, fig. 2.1) turns orANGe.
- The unit will reset automatically when voltage is < 16.5 VDC.
over Voltage on USB Port
- USb output is shut down if USb output ≥ 6.2 VDC.
- The LeD Status Indicator (2, fig. 2.1) will be off or reD.
operational conditions indicated by the LeD Status Indicator (2, fig. 2.1) are given in
the following table: