Environment information (cont.)
Signal transmission
These signals are each transmitted by two
◗"overload" signal indicates that an overload has taken place (Pload > Pnominal in kVA);
◗"rectifier/charger function fault" signal indicates that:
◗a fault has taken place in the rectifier/charger module,
◗Mains 1 input switch Q1 is open;
◗"inverter function fault" signal indicates that a fault has taken place in the inverter module;
◗"transfer to inverter fault" signal indicates that the load transfer conditions from Mains 2 to the inverter are incorrect;
◗"transfer to Mains 2 fault" signal indicates that the transfer to Mains 2 conditions (voltage, frequency or phase) are incorrect and a forced transfer will result in a 0.8 second interruption in the supply of power to the load;
◗"rectifier/charger on" signal indicates the status of the module.
Note:
A Static Switch Cubicle receives only the following signals:
◗overload,
◗transfer to inverter fault,
◗transfer to Mains 2 fault.
