HPM6 Power Management Controller User Manual
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>Start delay
00005
Interface 5:
Press
to change cursor position,
are used for changing cursor value,
to confirm setting and the setting will be
stored in internal memory automatically;
to
exit setting.
>Stop delay
>Start output
time
>Stop output
time
>Wait for start
time
>Wait for stop time
>Load stable
time
>Transient fault delay
>Alarm start delay
>Trigger start delay
>Alarm stop delay
7.
DG SYSTEM MODE DESCRIPTION
7.1
SYSTEM MODE
7.1.1
MANUAL MODE
When manual mode signal is active, the system will enter manual mode. In this mode, HPM6
controller can only monitor data and issue alarms but cannot control switch or genset. In addition, GOV
and AVR do not work but the manual GOV IN, manual GOV OUT, manual AVR IN and manual AVR OUT
do work in this mode.
7.1.2
SEMI-AUTO MODE
Semi-auto mode is activated by pressing
key; Semi-auto means that the unit will not initiate
any sequences automatically. It will only initiate sequences if external signal is given and alarm
protection function is always active.
The external signal may be given in three ways:
1. Using display panel keys
2. Using digital inputs
3. Using Modbus command
In semi-auto mode, all available diesel gensets start/stop/synchronizing closed/unloaded open
can be controlled by front panel keys.
The system monitors that if gensets are overloaded. Should that be the case, the Non Essential
Load (NEL) trip will activate to maintain power supply to bus.
If a heavy consumer is requested, the system will calculate the power needed. If the available
power is insufficient, the heavy consumer connection will not be allowed.
Semi-auto Start:
a)
Start command will be initiated by HPM6 after pressing
key. The system enters into “Start
Output Delay” while the start relay will activate;
b)
When “Start Output Delay” is over, “Wait for Start Delay” will be initiated. “Fail to Start” block alarm
will be initiated if measured generator voltage and frequency do not reach the set value after start
wait delay is over;
