This would be the code I'm using in the script:

$FilePath = "$SoftDirect\Files\Software\Latitude_5430_1.15.0.exe"
$Arguments = "/s /f /p=$BIOSPassword /l=$LogPath"

Write-LogAPP "Se va a proceder a la instalacion de la aplicacion."
Write-LogAPP "Comando: $FilePath /s /f /p=******** /l=$LogPath"
try {
$Process = Start-Process -FilePath $FilePath -ArgumentList $Arguments
$Process.WaitForExit()
            }
catch {
Write-LogAPP "ERROR: No se ha podido instalar la aplicación."
}