HMC6 Power Management Controller User Manual Page 7 of 87
Parameter setting: parameters can be modified and stored in internal FLASH memory and cannot be lost
even in case of power outage; most of them can be adjusted using front panel of the controller and all of
them can be modified using PC via USB or RS485 ports;
Event Log：maximum 99 pieces of trip alarms, trip and stop alarms, start and stop, closing and opening
events can be saved in chronological sequence in internal memory, which means that they will not be lost
in case of power off.
3. FUNCTIONAL DESCRIPTION
3.1 OPERATION
● Diesel generators
● Load sharing between diesel generators
● Fixed power for diesel generator (asymmetrical load sharing)
● Heavy consumer control (fixed load)
● NEL (Non-essential Load) Trip
● Safety Mode (reserve an additional unit running on load)
3.2 ENGINE CONTROL
● Start/stop control
● GOV control: Relay outputs control, analog voltage control, analog current control
3.3 PROTECTIONS (ANSI)
● Overcurrent, 4 levels
● Reverse power, 2 levels
● Over power，2 levels
● Over voltage, 2 levels
● Under voltage, 3 levels
● Over and under frequency, 3 levels
●Unbalanced current
● Loss of excitation
● Close/Open Fail
● Digital inputs
3.4 DISPLAY
● Push-buttons for start and stop
● Push-buttons for auto/semi-auto mode transfer
● Push-buttons for breaker operations
● Push-buttons for highest priority
● Status, alarm and information text messages
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