HMC6 Power Management Controller User Manual Page 20 of 87
7.2 WORKING MODE DESCRIPTION
Table 7– Working Mode
After SG closing, all loads will be transferred to
SG side, DG opens and stops;
When SG opens, all loads will be transferred to
DG side, SG opens and stops.
After SG closing, SG shares with parts of loads,
DG shares the rest of power;
When SG opens, all load will be transferred to DG
side, SG opens and stops.
After SG closing, loads will be shared by SG and
DG;
When SG opens, all loads will be transferred to
DG side, SG opens and stops.
Note: When in SG mode, outputs of GOV and AVR should be set as “none” if SG can not achive speed
governing.
8. PROTECTION
Generator protection, busbar protection, current protection, power protection and switch protection can be
provided by HMC6. Each kind of protection can configure one or more relays output.
Table 8 – Controller Alarm types
Each alarm can be removed only when it is acknowledged and all alarm information will be cleared
automatically if the data is beyond the alarm scope after acknowledged. Users also can remove the alarm by
“Alarm Reset” auxiliary input port.