HAT162 ATS Controller User Manual Page 8 of 21
4.4.3
AUTO OPERATION
In auto mode, controller can switch between 1# supply and 2# supply automatically.
4.4.4
MANUAL TEST
In manual mode, when genset start signal is active, press
can deactivate the genset start
signal. When genset start signal is inactive, press
can active the genset start signal.
5.
CLOSE FAULT ALARM
Breaker close fault is divided into 1# supply breaker close fault and 2# supply breaker close fault.
After the controller send a breaker close fault alarm, alarm indicator flashes.
Process of trigger 1# supply close fault alarm is as below:
When 1# supply voltage is normal, controller will initiate a command of close 1# supply; if 1# close
input signal cannot be detected, 1# supply will be open and close again. If controller still cannot detect
the 1# close signal, it will be regarded as 1# close failure and the alarm indicator illuminates at the
same time. Meanwhile, if 2# supply voltage is normal and doesn’t occur close fault, then 2# power will
be closed.
Process of trigger 2# supply close fault alarm is as below:
When 2# supply voltage is normal, controller will initiate a command of close 2# supply; if 2# close
input signal cannot be detected, 1# supply will be open and close again. If controller still cannot detect
the 2# close signal, it will be regarded as 2# close failure and the alarm indicator illuminates at the
same time. Meanwhile, if 1# supply voltage is normal and doesn’t occur close fault, then 1# power will
be closed.
Reset close fault alarm: after alarm occurs, switch controller to manual mode to reset alarm. This
moment, troubleshooting and ATS transfer test can be carried out.
NOTE:
After reset alarms, the fault must be checked and cleared.
