Velleman PI150BN - Manual (Page 4)

PI150W // 12V & 24V VELLEMAN 3
5. OPERATION
Always activate the inverter before activating the appliance connected with the
inverter.
The buzzer will sound when the battery voltage is very low, indicating that the
inverter will be disconnected in a couple of minutes.
In case of overload, the inverter will automatically try to engage the soft-start
mode until the user diminishes the load.
and the
appliance
second
Turn the
inverter on
first