User manual, Check synchroscope CSQ-3
4189340263L (UK)
Dead bus synchronising
When the dead bus function is set, the synchronising relay will be activated and the
green LED (SYNC) will be lit, when the busbar voltage is below the dead busbar
preset level and the GEN voltage exceeds 80% of nominal value.
Please notice that when the voltage on the net has been restored, the CSQ-3 will
remain in the dead bus function for a period of 5 seconds.
Power up reset
The unit will operate when the GEN voltage exceeds 80% of the nominal value. Below
this level no functionality is obtained.
µ
P supervision output
Due to the demands from the classification societies (GL) a special optocoupler output
has been added on the marine version.
From this output it is possible to supervise the internal microprocessor (
µ
P).
If an error is present, the output changes state from a low to a high impedance (open
collector output).
